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2006 DODGE Sprinter Body Repair Manual

1. FUSE AMPS FUSED CIRCUIT FUNCTION NO 1 2 104 16WT FUSED HIGH BEAM SWITCH OUTPUT 3 104 16WT FUSED HIGH BEAM SWITCH OUTPUT 4 10 16WT BL RD FUSED IGNITION SWITCH OUTPUT RUN START 5 10A 16BK BL WT FUSED IGNITION SWITCH OUTPUT RUN START 6 20 INTERNAL FUSED IGNITION SWITCH OUTPUT RUN START 7 15A 16BK YL FUSED IGNITION SWITCH OUTPUT RUN START 8 20 16RD YL FUSED B 9 15 INTERNAL FUSED B 10 104 16GY DG RD HEADLAMP SWITCH OUTPUT 11 104 16GY BK FUSED LEFT LAMP RELAY OUTPUT 12 104 18YL HEADLAMP SWITCH OUTPUT 13 104 18YL HEADLAMP SWITCH OUTPUT 14 154 16BK YL WT FOG LAMP RELAY SIGNAL 15 10 16BK RD FUSED IGNITION SWITCH OUTPUT ACC RUN START 16 154 12BK BL ENGINE CONTROL RELAY OUTPUT 17 15A 16BK RD ENGINE CONTROL RELAY OUTPUT 18 154 14BK FUSED IGNITION SWITCH OUTPUT RUN START 19 154 14RD BK FUSED B 20 15A 16RD BL FUSED B 21 30A 12RD FUSED B FUSE BLOCK NO 1 C1 CAV CIRCUIT FUNCTION 1 INTERNAL FOG LAMP SWITCH OUTPUT 3 INTERNAL HIGH BEAM SWITCH OUTPUT 4 16RD BL FUSED RIGHT LAMP RELAY OUTPUT 5 INTERNAL HIGH BEAM SELECT CONNECTOR 6 INTERNAL FUSED LEFT RELAY OUTPUT NOT 8 INTERNAL LAMP DRIVER AVAILABLE 9 INTERNAL FUSED IGNITION SWITCH OUTPUT RUN START 10 INTERNAL FUSED B 11 INTERNAL TURN SIGNAL RELAY OUTPUT 14 INTERNAL GROU
2. CAV CIRCUIT FUNCTION Al 20BL RD WT VEHICLE SPEED SENSOR OUTPUT A2 20VL K TCM RADIO 18DG YL BK MUTE 4 16RD YL FUSED 5 16BK RADIO ANTENNA A6 16GY DG RD LAMP DRIVER A7 16BK RD FUSED IGNITION SWITCH OUTPUT ACC RUN START A8 16BR GROUND B1 16BR GY SPEAKER RIGHT REAR B2 16WT GY SPEAKER RIGHT REAR B3 18BR RD SPEAKER RIGHT FRONT 4 18 SPEAKER RIGHT FRONT B5 18BR DG SPEAKER LEFT FRONT B6 18BR SPEAKER LEFT FRONT B7 16BR BL SPEAKER LEFT REAR B8 16WT BL SPEAKER LEFT REAR RADIO C2 CAV CIRCUIT FUNCTION 1 16BK RADIO ANTENNA W SHIELD 2 16BK SHIELD RECIRCULATED AIR SOLENOID VALVE CAV CIRCUIT FUNCTION 1 16RD RECIRCULATED AIR SOLENOID VALVE CONTROL 2 16BK GROUND REFRIGERANT PRESSURE SENSOR CAV CIRCUIT FUNCTION 1 18BR BL SENSOR GROUND 2 20BR RD REFRIGERANT PRESSURE SENSOR FEEDBACK 3 20RD BL 5 VOLT SUPPLY 282 TURN SIGNAL ANTI THEFT ALARM RELAY LEFT TURN SIGNAL ANTI THEFT ALARM RELAY RIGHT LAMP RELAY LEFT LAMP RELAY RIGHT TRANSMISSION RELAY D RELAY NO 1 DAYTIME RUNNING LAMPS RELAY FOG LAMP RELAY DAYTIME RUNNING LAMP RELAY LEFT SIDE DAYTIME RUNNING LAMP RELAY RIGHT SIDE RELAY BLOCK CONNECTOR PINOUTS CIRCULATION PUMP RELAY FUSED IGNITION SWITCH RUN START RELAY
3. CAV CIRCUIT FUNGTION 1 16BK RD FUSED ENGINE CONTROL RELAY OUTPUT 2 14BR GROUND 3 14BK BL FUSED ENGINE CONTROL RELAY OUTPUT 4 14BR GROUND 5 14BK BL FUSED ENGINE CONTROL RELAY OUTPUT 6 14BR GROUND 7 1880 S C SWITCH 12 VOLT SUPPLY 18BR WT HIGH IDLE ON SIGNAL 10 18WT RD BOOST PRESSURE SENSOR 5 VOLT SUPPLY 11 t8WT DG BOOST PRESSURE SENSOR SIGNAL 12 18BR WT SENSOR GROUND 13 18GY DG ACCEL PEDAL POSITION SENSOR SIGNAL NO 2 14 18BR GY ACCEL PEDAL POSITION SENSOR GROUND NO 2 17 18BR DG KICKDOWN SWITCH SIGNAL 18 20DG YL ENGINE RPM CONNECTOR 19 18BK FUSED IGNITION SWITCH OUTPUT RUN START NOT 24 18BL RD ACCEL PEDAL POSITION SENSOR 5 VOLT SUPPLY AVAILABLE 25 18BL DG ACCEL PEDAL POSITION SENSOR SIGNAL NO 1 26 18BR BL ACCEL PEDAL POSITION SENSOR GROUND NO 1 28 18BR DG INTAKE AIR TEMPERATURE SENSOR GROUND 31 20BL YL K ECM 32 2006 ENHANCED ACCIDENT REPORT DRIVER N 36 18VT IGNITION SWITCH OUTPUT START N 37 1806 ACCEL SET SIGNAL E 38 18BK VERIFICATION SIGNAL C 42 18DG WT INTAKE AIR TEMPERATURE SENSOR SIGNAL T 43 18BK RD GLOW PLUG MODULE CONTROL 44 18YL BL ENGINE CONTROL RELAY CONTROL R 50 18YL DECEL SET SIGNAL 51 18GY OFF SIGNAL 52 18BL RESUME SIGNAL 53 20DG WT CAN C BUS N 54 2006 CAN C BUS 55 18BR RD FUEL PUMP RELAY CONTROL U 58 18VT DG STARTER MOTOR RELAY CONTROL T S 267
4. BLOWER MOTOR FRONT BLACK CIRCUIT FUNCTION 1 12RD BL BLOWER MOTOR 2 12BK GROUND BLOWER MOTOR FRONT C205 VELLOW DASH SIDE A GAV GIRCUIT 1 20BL DG 2 20BR DG 205 YELLOW MAIN BODY SIDE CIRCUIT N 2 1 1 20BL DG E C205 2 20BR DG T CENTRAL TIMER MODULE 1 PINK R CIRCUIT FUNCTION 1 16DG BK DRIVER DOOR UNLOCK SENSE 2 16BL RD DRIVER DOOR LOCK DRIVER 3 16BK RD DRIVER DOOR UNLOCK DRIVER N 4 16YL BK DRIVER DOOR LOCK SENSE 0 5 16DG BLIWT PASSENGER FRONT DOOR UNLOCK SENSE U 6 16YL BL PASSENGER FRONT DOOR LOCK SENSE T 7 16WTNL MASTER DOOR LOCK SWITCH SENSE ALL DOORS 5 8 16RD BK FUSED D RELAY NO 1 OUTPUT CENTRAL 9 16WT BL EXCEPT VTSS INTERFACE TIMER 9 16WT BURD VTSS RKE INTERFACE MODULE 10 16BKIRD FUSED IGNITION SWITCH OUTPUT ACC RUN START C1 11 1606 ENHANCED ACCIDENT REPORT DRIVER 12 20DG WT BL K CTM SSM 18 14RD WT FUSED B 14 14BR GROUND 15 16WT BK DRIVER DOOR AJAR INDICATOR DRIVER 260 LT GREEN LI CENTRAL TIMER MODULE C2 CIRCULATION PUMP CABIN HEATER MODULE CONNECTOR PINOUTS CENTRAL TIMER MODULE C2 LT GREEN CONNECTOR NOT AVAILABLE CONNECTOR NOT AVAILABLE CAV CIRCUIT FUN
5. CONNECTOR PINOUTS A C AUXILIARY FAN AIRBAG CONTROL MODULE CAV CIRCUIT FUNCTION 1 14DG BK AIC AUXILIARY FAN RELAY OUTPUT 2 14BR GROUND AIR OUTLET TEMPERATURE SENSOR CAV CIRCUIT FUNCTION 1 18BR GY AIR OUTLET TEMPERATURE SENSOR SIGNAL 2 18BR BL SENSOR GROUND AIRBAG CONTROL MODULE YELLOW CAV CIRCUIT FUNCTION 1 20BL DRIVER SEAT BELT TENSIONER LINE 2 2 20BR YL DRIVER SEAT BELT TENSIONER LINE 1 3 20BL PASSENGER SEAT BELT TENSIONER LINE 2 4 20BR PASSENGER SEAT BELT TENSIONER LINE 1 5 20BK FUSED IGNITION SWITCH OUTPUT RUN START 6 20BR GROUND 7 20 AIRBAG WARNING INDICATOR DRIVER 8 9 20BK RD K ACM 10 10 2006 DRIVER AIRBAG SQUIB 1 LINE 2 11 20vT DRIVER AIRBAG SQUIB 1 LINE 1 12 13 20BL DG PASSENGER AIRBAG SQUIB 1 LINE 2 14 20BR DG PASSENGER AIRBAG SQUIB 1 LINE 1 15 16 17 18 19 20 20DG ENHANCED ACCIDENT REPORT DRIVER 21 22 23 24 25 257 LI R 4 2 CONNECTOR PINOUTS YELLOW 1 2 AIRBAG SQUIB DRIVER YELLOW CAV CIRCUIT FUNCTION 1 2006 DRIVER AIRBAG SQUIB 1 LINE 2 2 20VT DRIVER AIRBAG SQUIB 1 LI
6. STEERING ANGLE SENSOR TOWING INTRUSION SENSOR ON OFF SWITCH BLACK 30 23 10 1 TRANSMISSION CONTROL MODULE C1 CONNECTOR PINOUTS STEERING ANGLE SENSOR CAV CIRCUIT FUNCTION 1 20DG WT CAN C BUS 2 20DG CAN C BUS 4 5 20BK RD FUSED OPTIONAL EQUIPMENT RELAY OUTPUT 6 20BR GROUND TOWING INTRUSION SENSOR ON OFF SWITCH CAV CIRCUIT FUNCTION 1 18GY DG RD LAMP DRIVER 2 3 18GY YL INTRUSION SENSOR SWITCH SENSE 4 18BR GROUND 5 6 7 8 18GY BR TOWING SENSOR SWITCH SENSE 9 18VT DG TOWING INTRUSION SENSOR INDICATOR DRIVER 10 18BR GROUND TRANSMISSION CONTROL MODULE C1 BLACK CAV CIRCUIT FUNCTION 1 20BL K TCM RADIO 2 3 4 5 6 7 8 9 10 23 24 25 26 27 28 29 16BK DG TRANSMISSION RELAY OUTPUT 30 18BR GROUND 287 R 4 2 15 CONNECTOR PINOUTS BLACK 38 33 17 12 TRANSMISSION CONTROL MODULE C2 CONNECTOR NOT AVAILABLE CONNECTOR NOT AVAILABLE R
7. CAV CIRCUIT FUNCTION 1 16DG YL INTRUSION SENSOR INTERFACE 2 16GY BL WINDOW DEFOGGER LEFT REAR OUTPUT 16GY WINDOW DEFOGGER RELAY RIGHT REAR OUTPUT 4 20DG BK INTRUSION SENSOR 1 SIGNAL 5 6 7 20GY BK INTRUSION SENSOR 2 SIGNAL 16GY DG K CTM SSM 9 18BK BL SIREN SIGNAL CONTROL 10 20DG WT BL INTRUSION SENSOR 3 SIGNAL 11 16WT BL RKE INTERFACE 12 16WT BL RD SECURITY SYSTEM INTERFACE SENTRY KEY REMOTE ENTRY MODULE SKREEM CAV CIRCUIT FUNCTION 1 18YL RKE ANTENNA 2 16 GROUND 16RD YL FUSED B 4 4 16BK WT LEFT TURN SIGNAL 5 20DG WT CAN C BUS 6 20DG CAN C BUS 7 16BK YL FUSED IGNITION SWITCH OUTPUT RUN START 8 20WT DG K SKREEM 9 16WT BL RD EXCEPT RKE INTERFACE VTSS 9 16WT BL RD VTSS SECURITY SYSTEM INTERFACE 10 18DG YL TURN SIGNAL ANTI THEFT ALARM RELAY LEFT RIGHT CONTROL 11 20BR TRANSPONDER COIL 12 TRANSPONDER COIL SHIFTER ASSEMBLY BLACK CAV CIRCUIT FUNCTION 1 2 20GY DG RD LAMP DRIVER 3 20BL DG K ABS SHIFTER ASSEMBLY 4 18BR GROUND 5 20BK BL RD BRAKE LAMP SWITCH 6 20DG WT CAN C BUS 7 2006 CAN BUS 8 18BK DG TRANSMISSION RELAY OUTPUT 9 16WT BL RD FUSED IGNITION SWITCH OUTPUT RUN START 10 16WT RD BACK UP LAMP SIREN BLACK CAV CIRCUIT FUNCTION 1 18RD DG FUSED B 2 18BR GROUND 3 18BK BL SIREN SIGNAL CONTROL 286
8. Relay Output 1 6 ja 3 ae BOOSTER 1 i Refrigerant Pressure Sensor REFRIGERANT m Feedback GEE 2 PRESSURE STAGE 1 AIG 1 SENSOR RELAY AUXILIARY l 1 1 1 2 i i Ground 1 HVAC UNIT 1 BiB DG TO FUSE BLOCK Fused Ignition Switch Output TA GEH i NO 1 1 BK YL a OUTLET 1 TODLE WT GY lt K IC CHM HBM O17 i Temperature SENSOR 1 Sensor Signal 1 1 DG WT 1 GEN N cr 1 1 ie oo AN C Bus Bus 67 20 T ue 5 Evaporator Temperature Sensor SENSOR 1 GY DG RD GEE Signal 1 Panel Lamps Driver l 1 13 C1 9 1 BK VT H 1 Fan Stage 1 Relay Output 1 1 i YL 1 1 BL YL 1 1 Heater Booster Made e Motor Low Driver i CABIN HEATER 1 4 WT BK i 1 DS Blower Motor M1 Driver BLOWER BL YL BK MOTOR A TO eel EF Blower Motor M2 Driver RESISTOR ontro KER ESTA 2 4 WT BLOCK t i i HEATER BOOSTER Blower Motor High Driver DG EI 1 C 1 1 1 1 1 1 i 1 1 FRONT 1 1 1 D RD BL H IGround I i i A IRECIRCULATED AIR 1 1 BK BL WT 1 SOLENOID VALVE 1 Recirculation Air Solenoid 1 Valve Control Del BK BR Contro R ccn EX BR
9. ERES RR eea LP ERE 98 UNDER VOLTAGE EEE 99 COMMUNICATION RESPONSE FROM AIRBAG CONTROL MODULE 102 RESPONSE FROM AUTOMATIC TEMPERATURE CONTROL 104 NO RESPONSE FROM CABIN HEATER 106 RESPONSE FROM CENTRAL TIMER MODULE 0 108 RESPONSE FROM CONTROLLER ANTILOCK BRAKE 110 RESPONSE FROM ENGINE CONTROL MODULE 112 NO RESPONSE FROM HEATER BOOSTER MODULE 443 4 22 4 114 RESPONSE FROM INSTRUMENT CLUSTER 116 NE RESPONSE FROM RADIO komad ag eas 118 RESPONSE FROM SECURITY SYSTEM MODULE 120 RESPONSE FROM SENTRY KEY REMOTE ENTRY MODULE 122 NO RESPONSE FROM SHIFTER ASSEMBLY 2 2 5 54 RR m 124 RESPONSE FROM TRANSMISSION CONTROL MODULE 126 HEATING amp A C COMPRESSOR CONTROL HIGH OR OPEN 128 COMPRESSOR CONTROL HIGH OR OPEN STORED 130 COMPRESSOR CONTROL SHORTED LOW STORED 130 AIR OUTLET TEMP SENSOR HIGH OR OPEN 5 130 AIR OUTLET TEMP SENSOR SHORTED LOW STORED 130 AUX FAN RELAY CONTROL HIGH OR OPEN
10. H 7 1 DLC 15 DOSING PUMP M Dosin En Control G d A 1 i roun 41 9 TP 1 my 2 T 1 1 i 1 1 4 BR c Ground i 21 1 1 1 2 j ad 2 7 811abec5 A R A M S 293 SCHEMATIC DIAGRAMS 10 3 HEATING amp Continued 10 3 3 HEATER BOOSTER MODULE HBM HEATER FUSE BOOSTER BLOCK MODULE HBM NO 3 FUSE eee bL 71 BLOCK _ NO 3 1 BK ra Fused B 1 4 TO i 1 Fused Optional i Weyl Equipment Relay 1 LEUSE 4 OPTIONAL 1 UU J Output A BK BL DG 1 i RELAY 71 BL RD KHC ATC CHM HBM 70 I DLC AUTOMATIC t 1 TEMPERATURE i CONTROL i 1 1 DG RD BK 71 Cabin Heater Control 61 19 1 1 CIRCULATION i to J DOSING PUMP i DG CIRCULATION Dosing Pump Control Ground PUMP 1 1 1 2 i 1 BR BR 1 2 Ground Ground 1 81125108 5 H R A M 5 294 10 4 INSTRUMENT CLUSTER SCHEMATIC DIAGRAMS INSTRUMENT CLUSTER FUSE BLOCK FUSE 18 1 BK A 1 Fused Ignition Switch Output 1 1 RUN START CAN C BUS FUSE BLOCK CAN C FUSE 6 2 RD YL
11. 259 AUXILIARY HEATER 2 2 259 BLOWER MOTOR RESISTOR 259 BLOWER 260 C205 YELLOW DASH 5 1 260 C205 YELLOW MAIN BODY 260 CENTRAL TIMER MODULE C4 260 CENTRAL TIMER MODULE C2 LT GREEN 261 CIRCULATION PUMP CABIN HEATER MODULE 261 CIRCULATION PUMP REST 5 261 CIRCULATION PUMP DIODE 261 CLOCKSPRING C2 YELLOW n n nene memes 262 CONTROLLER ANTILOCK 262 CYLINDER LOCK 2 2 2 263 DATA LINK CONNECTOR 263 DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY DRIVER 1 a nn nanan 263 DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY DRIVER 2 263 DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY LEFT SLIDING C1 263 DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY LEFT SLIDING C2 264 DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY PASSENGER C1 264 DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY PASSENGER C2 264 DOOR
12. 5 EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE IN STRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH 2 WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PERFORMINGA COMPONENT INSPECTION REPAIR REPLACEMENT FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH 3 NOTE The heater s control unit will store up to five DTCs in its memory 4 NOTE If the heater s control unit detects a new fault in the system one that is not already stored in its memory it will clear the oldest of the five stored DTCs and it will store the new fault s DTC 5 NOTE If the heater s control unit detects a reoccurrence of a stored fault it will overwrite that fault s DTC with the most recent occurrence 6 Verify that the vehide s battery is fully charged 7 Verify that there is more than 1 8 of a tank of fuel the vehicle s fuel tank Add fuel if necessary 8 Verify that all heater s coolant hoses and fuel lines are securely fastened to their respective components 9 Disconnect all jumper wires and reconnect all previously disconnected components and connectors 10 If a heater installation cooling system service was performed purgethe coolant circuit of air in accordance with the Service I nformation 11 Turn the ignition on 12 Verify that the Cabin Heater or Heater Booster is switched off 13 Ensure that all accessories are turned off 14 Set the blend control to the max heat posi
13. Replace the Cabin Heater Assembly or Heater Booster Assembly in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 82 CABIN Symptom FAN STAGE 1RELAY CONTROL OPEN POSSIBLE CAUSES GROUND CIRCUIT OPEN FAN STAGE 1 RELAY HIGH SIDE CONTROL CIRCUIT OPEN FAN STAGE 1 RELAY CABIN HEATER CONTROL UNIT ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION RE PAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH CAUTION DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY THE HEATER PRE TEST ALWAYS PERFORM THE HEATER PRE TEST PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE VALID Turn the ignition off Remove the Fan Stage 1 Relay from the relay center Measure the resistance between ground and the Ground circuit in the relay center Fan Stage 1 Relay connector terminal 85 Is the resistance below 5 0 ohms Yes GoTo 2 Repair the Ground circuit for an open Perform HEATER VERIFICATION TEST VER 1 83 CABIN FAN STAGE 1RELAY CONTROL OPEN Continued ACTION APPLICABILITY WARNING NEVER OPERATE THE HE
14. lt Se y 6200 PIGTAIL kh RECIRCULATED 2 a AIR SOLENOID VALVE BLOWER REFRIGERANT 909 PRESSURE SI 5 TE SENSOR CIRCULATION PUMP 81115176 COMPONENT LOCATIONS 8 6 2 CABIN 8 BOOSTER SYSTEM COMPONENTS HEATER TIMER ADDITIONAL P OR OPTIONAL ING PUMP HEATER BOOSTER TWO HEATER INSTALLATION N ASSEMBLY E N FUEL TANK CIRCULATION PUMP CABIN HEATER ASSEMBLY ONLY L T 5 CIRCULATION OPTIONAL LOCATION DOSING PUMP FOR CABIN HEATER PUMP ASSEMBLY 8111516b 8 6 3 AUTO TEMP CONTROL CABIN HEATER amp HEATER BOOSTER FUSES amp RELAYS FAN STAGE 1 RELAY CIRCULATION PUMP RELAY A C AUXILIARY FAN RELAY SEE BACKSIDE FUSE BLOCK NO 2 COVER FO LOCATION INFORMATION FUSE BLOCK NO 2 7 ANS T SS EES A A FUSE A 7 es lt 2 RELAY BLOCK 81115172 8 6 4 EVAP TEMP SENSOR amp AIR OUTLET TEMP SENSOR EVAPORATOR TEMPERATURE as Ln S AA m X TL AIR OUTLET XS fz TEMPERATURE A SENSOR KS ALY SS ur 251 A We 8111517 COMPONENT LOCATIONS v 8 7 INSTRUMENT CLUSTER e 8 7 1 AMBIENT TEMPERATURE SENSOR Y E N T AMBIENT TEMPERATURE V S FRONT i FASCIA 81103604 L T 5 8
15. 252 8 7 1 AMBIENT TEMPERATURE 5 5 252 8 8 tans aa 252 88 1 CENTRAL TIMER 252 8 8 2 SENTRY KEY REMOTE ENTRY MODULE 253 8 83 DOOR LOCK MOTOR AJAR SWITCH 253 8 8 4 253 8 8 5 DOOR LOCK MOTOR AJAR SWITCH CONNECTORS 254 9 0 TABLE OF CONTENTS Continued 89 VEHICLE THEFT SECURITY 5 5 254 891 SECURITY SYSTEM 254 892 INTRUSION SENSORS 254 893 SWITCHES ds 255 894 255 CONNECTOR PINOUTS Me mt 257 AIC AUXILIARY FAN sisse e e e eere 257 AIR OUTLET TEMPERATURE SENSOR 257 AIRBAG CONTROL MODULE YELLOW 257 AIRBAG SQUIB DRIVER 258 AIRBAG SQUIB PASSENGER YELLOW 258 AMBIENT TEMPERATURE SENSOR 258 AUTOMATIC TEMPERATURE CONTROL MODULE C1 BROWN 259 AUTOMATIC TEMPERATURE CONTROL MODULE 2
16. R u CGOZ 7 CONNECTOR PINOUTS BLACK O0OOO0OO000O0O0 ENGINE CONTROL MODULE EXCEPT ENGINE CONTROL MODULE EXCEPT BLACK CAV CIRCUIT FUNCTION 1 18BR DG INTAKE AIR TEMPERATURE SENSOR GROUND 2 3 4 5 18BL RD ACCEL PEDAL POSITION SENSOR 5 VOLT SUPPLY 6 18WT DG BOOST PRESSURE SENSOR SIGNAL 7 20BR YL MASS AIR FLOW SENSOR GROUND 8 18BR GY ACCEL PEDAL POSITION SENSOR GROUND NO 2 9 18GY DG ACCEL PEDAL POSITION SENSOR SIGNAL NO 2 10 18BL DG ACCEL PEDAL POSITION SENSOR SIGNAL NO 1 11 12 18DG WT INTAKE AIR TEMPERATURE SENSOR SIGNAL 13 14 _ 15 16 17 18WT RD BOOST PRESSURE SENSOR 5 VOLT SUPPLY 18 20YL DG MASS AIR FLOW SENSOR SIGNAL 19 20BR BK MASS AIR FLOW SENSOR 5 VOLT SUPPLY 20 18VT IGNITION SWITCH OUTPUT START 21 22 18BR WT BOOST PRESSURE SENSOR GROUND 23 18BR BL ACCEL PEDAL POSITION SENSOR GROUND NO 1 24 25 18BK RD GLOW PLUG MODULE CONTROL 26 27 28 20BL YL K ECM 29 30 18RD BL STARTER MOTOR RELAY 12 VOLT SUPPLY 31 32 33 20YL RD MASS AIR FLOW SENSOR 12 VOLT SUPPLY 34 35 20BR BOOST PRESSURE SOLENOID 12 VOLT SUPPLY 36 37 38 39 40 20DG YL ENGINE RPM 4
17. cris eme _ 5 a js del 811abea7 292 10 3 2 CABIN HEATER MODULE CHM SCHEMATIC DI AGRAMS FUSE FUSE BLOCK BLOCK NO 1 NO 3 BK YL i 1 Oooo o Fused Ign Sw Output m RD WT RUN START cen Fused B Poy 1 SWITCH BATTERY 1 FUSE7 FUSES 1 1 1 1 le Fused 1 P U 4 BATTERY dii FUSE 20 FUSE4 Ed seas CABIN HEATER MODULE CHM GE GI 1 1 Fused B e 1 1 1 1 1 1 BL YL BL YL Fan Stage 1 Relay High Side Circulation Pump Relay Control High Side Control 3 CIRCULATION t BB STAGE 1 PUMP BR Ground RELAY RELAY Ground t 1 1 1 1 1 BK VT DG BK 1 Fan Stage 1 Circulation l Relay Pump Relay 1 1 Output Output DG RD l WENN Cv BUYL RI CIRCULATION ce Heater Booster Mode eu ENT PUMP DIODE AUTOMATIC 1 TEMPERATURE CHM BL CONTROL CIRCULATION M CAT Cabin Heater Control PUMP 1 oss 1 2 1 1 1 1 BR 1 1 Ground 1 Ji 3 CHM 1 W Cabin Heater Control 1 AUXILIARY 5 1 7 17 HEATER 1 PROGRAM i SWITCH C TIMER BL RD 1 1 K IC ATC CHM HBM
18. ohms Yes Repair the Circulation Pump Control circuit for a short to the Ground circuit Perform BODY VERIFICATION TEST VER 1 GoTo 3 Turn the ignition off Disconnect the Circulation Pump harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the Circulation Pump Control circuit and the Sensor Ground circuit in the Automatic Temperature Control C1 harness connector 15 the resistance below 10k ohms Yes Repair the Circulation Pump Control circuit for a short to the Sensor Ground circuit Perform BODY VERIFICATION TEST VER 1 GoTo 4 154 HEATING amp CIRC PUMP CONTROL SHORTED LOW ACTIVE Continued ACTION APPLICABILITY Turn the ignition off AII Disconnect the Circulation Pump harness connector Connect a fused jumper wire between the Battery and Circulation Pump cavity 2 Connect a jumper wire between ground and Circulation Pump cavity 1 Does the Circulation Pump run Yes Replace the Automatic Temperature Control in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Replace the Circulation Pump in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 155 HEATING amp Symptom EVAP TEMP SENSOR HIGH OR OPEN ACTIVE POSSIBLE CAUSES EVAPORATOR TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE AUTOMATIC TEMPERATURE CONTR
19. 284 SEAT BELT SWITCH 22 2 284 SEAT BELT TENSIONER DRIVER 2 285 SEAT BELT TENSIONER PASSENGER YELLOW 285 SECURITY SYSTEM MODULE C1 285 SECURITY SYSTEM MODULE C2 LT 286 SENTRY KEY REMOTE ENTRY MODULE 286 SHIFTER ASSEMBLY 286 SIREN BLACK Baracoa ace 286 STEERING ANGLE SENSOR 2 287 TOWING INTRUSION SENSOR ON OFF SWITCH 287 TRANSMISSION CONTROL MODULE C1 BLACK 287 TRANSMISSION CONTROL MODULE C2 BLACK 288 WATER CYCLE 288 WINDOW DEFOGGER LEFT 288 WINDOW DEFOGGER RIGHT 288 SCHEMATIC 6 289 104 AIRBAG SYSTEM ore seco cud tan Fere eet e aet du sas 289 10 2 22 2 2 4 290 10 2 1 COMMUNICATION K LINES 290 10 2 2 CAN BUS 291 103 HEATING amp A C
20. 197 POWER DOOR LOCKS RKE Symptom PASSENGER DOOR AR INDICATOR DRIVER CIRCUIT SHORT TO GROUND I When Monitored and Set Condition PASSENGER DOOR AJ AR INDICATOR DRIVER CIRCUIT SHORT TO GROUND When Monitored Whenever the battery is above 10 0 volts and the module is connected Set Condition Whenever the CTM senses resistance on the Passenger Door Ajar Indicator Driver circuit for over 30 seconds this code will set POSSIBLE CAUSES DTC PRESENT MASTER DOOR LOCK SWITCH SHORTED CENTRAL TIMER MODULE SHORTED PASSENGER DOOR AJ AR INDICATOR DRIVER WIRE SHORT TO GROUND ACTION APPLICABILITY With the DRBIII record and erase DTC s All Cycle the ignition switch from ON to OFF to ON With the DRBIII read Operate the Door Locks several times while observing the Wait 10 seconds Does the DRBIII display PASSENGER DOOR AJAR INDICATOR CIRCUIT SHORT TO GROUND Yes GoTo 2 Theconditions that caused this code to set are not present at this time Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Master Door Lock Switch connector Measure the resistance between ground and the Passenger Door Ajar Indicator Driver circuit 15 the resistance below 1000 0 ohms Yes GoTo 3 Replace the Master Door Lock Switch Perform BODY V
21. 278 HOOD AJAR SWITCH 278 585 22222222 2 2 1 1 278 IGNITION LOCK SWITCH 278 INSTRUMENT CLUSTER 1 2 279 INSTRUMENT CLUSTER 2 279 INTRUSION SENSOR NO 1 279 INTRUSION SENSOR NO 2 279 INTRUSION SENSOR NO 3 280 MASTER DOOR LOCK SWITCH e 280 PANIC ALARM SWITCH 2 22 2 280 FUSES PPG suunast data cue tad eth tee nd ratus ated PE ads 281 BLA mid varese 282 cei date 282 RECIRCULATED SOLENOID VALVE 282 REFRIGERANT PRESSURE 5 282 AUXILIARY FAN RELAY RELAY 284 CIRCULATION PUMP RELAY CABIN HEATER MODULE RELAY BLOCK 284 D RELAY 2 RELAY 2 2 284 FAN STAGE 1 RELAY RELAY 284 OPTIONAL EQUIPMENT RELAY RELAY BLOCK 284 REMOTE KEYLESS ENTRY ANTENNA
22. Repair theCAN C Bus or the CAN C Bus circuit for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off All Disconnect the Controller Antilock Brake harness connector Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located in the service information to 188 INSTRUMENT CLUSTER NO CAN COMMUNICATION WITH ABS Continued ACTION APPLICABILITY Turn the ignition off to the lock position AII Disconnect the Instrument Cluster C1 harness connector Measure the resistance between the Bus circuit and the CAN Bus circuit in the Instrument Cluster harness connector Is the resistance 60 ohms 3 0 ohms Yes Replace the Instrument Cluster in accordance with the service information Perform BODY VERIFICATION TEST VER 1 Repair the CAN Bus or the C Bus circuit for an open Perform BODY VERIFICATION TEST VER 1 189 INSTRUMENT CLUSTER Symptom NO CAN COMMUNICATION WITH ECM POSSIBLE CAUSES DTC PRESENT OPEN CAN CIRCUITS AT INSTRUMENT CLUSTER INSTRUMENT CLUSTER CHECK POWERS AND GROUNDS TO THE AFFECTED MODULE OPEN CAN CIRCUITS AT ECM ACTION APPLICABILITY With the DRBIIIS record and erase Cycle the ignition switch from ON to OFF to With the DRBIII9 read 5 Did this DTC reset Yes GoTo 2 Theconditions that caused this code to set are not present a
23. ACTION APPLICABILITY Turn the ignition off All NOTE Check connectors Clean repair as necessary Disconnect the Automatic Temperature Control ATC C1 harness connector Turn the ignition on Measure the voltage of the Water Cycle Valve Control circuit Is the voltage above 0 2 volts Yes Repair the Water Cycle Valve Control circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 Replace the Automatic Temperature Control in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Automatic Temperature Control ATC C1 harness connector Disconnect the Water Cycle Valve harness connector Measure the resistance of the Water Cycle Valve Control circuit between the Automatic Temperature Control ATC C1 harness connector and the Water Cycle Valve harness connector 15 the resistance below 5 0 ohms Yes GoTo 4 Repair the Water Cycle Valve Control circuit for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Water Cycle Valve harness connector Measure the resistance between ground and the Ground circuit Is the resistance below 5 0 ohms Yes Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST
24. CAV CIRCUIT FUNCTION 2 1 16BKWT LEFT TURN SIGNAL N 2 E 4 16BK DG RIGHT TURN SIGNAL 5 16BK VT FAN STAGE 1 RELAY x 6 16WT RD WARM AIR AUXILIARY HEATER CONTROL 7 16RD GY FUSED B 19 1 8 16BK GY FUSED OPTIONAL EQUIPMENT RELAY OUTPUT L 9 18VT DG TOWING INTRUSION SENSOR INDICATOR DRIVER 2 m 11 16BR YL FRONT COURTESY LAMPS CONTROL SECURITY N 12 16 AJAR SWITCH SENSE SYSTEM 13 1680 06 FUSED B Y 14 16BK BL HOOD AJAR SWITCH SENSE x 15 18GY WT PANIC SWITCH SENSE 16 16BR GROUND 17 18 TOWING SENSOR SWITCH SENSE 18 18 INTRUSION SENSOR SWITCH SENSE 19 20 16BK DRIVER CYLINDER UNLOCK SENSE 21 16RD DRIVER CYLINDER LOCK SENSE 285 R 4 2 CONNECTOR PINOUTS A LT GREEN SECURITY SYSTEM MODULE C2 TP TF LP 8 TTT EELT coche SENTRY KEY REMOTE ENTRY MODULE SKREEM BLACK m i SHIFTER ASSEMBLY BLACK SECURITY SYSTEM MODULE 2 LT GREEN
25. DTCs Yes Return to the Heating amp A C symptom list and choose the symptom s Perform BODY VERIFICATION TEST VER 1 GoTo 3 Turn the ignition on With the DRBIII9 read Engine Control Module DTCs Does the DRBIII9 display any DTCs Yes Refer to Powertrain Diagnostic information for the related symp tom s Perform BODY VERIFICATION TEST VER 1 Refer to Service Information to diagnose the system s that failed to meet the ATC Function Test operating criteria Perform BODY VERIFICATION TEST VER 1 139 HEATING amp Symptom AUX FAN RELAY CONTROL HIGH OR OPEN ACTIVE POSSIBLE CAUSES A C AUXILIARY FAN RELAY HIGH SIDE CONTROL CIRCUIT SHORTED TO VOLTAGE GROUND CIRCUIT OPEN A C AUXILIARY FAN RELAY HIGH SIDE CONTROL CIRCUIT OPEN A C AUXILIARY FAN RELAY AUTOMATIC TEMPERATURE CONTROL ATC ACTION APPLICABILITY Turn the ignition off All NOTE Check connectors Clean repair as necessary Remove the A C Auxiliary Fan Relay from the relay center Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the voltage of the A C Auxiliary Fan Relay High Side Control circuit Is the voltage above 0 2 volts Yes Repair theA C Auxiliary Fan Relay High Side Control circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off NOTE Check connectors Clean repair as necessary Remove the A C Auxiliary Fan Relay from the relay c
26. SENTRY KEY REMOTE ENTRY MODULE SKREEM WT DG K SKREEM 5 H R A M 5 290 WT GY BK YL BL RD WT GY K IC ATC HBM CHM RD YL FUSED B SECURITY SYSTEM C2 8 MODULE SSM AIRBAG CONTROL MODULE ACM INSTRUMENT CLUSTER AUTOMATIC TEMPERATURE CONTROL ATC HEATER BOOSTER MODULE HBM CABIN HEATER MODULE CHM FUSE BLOCK NO 2 FUSE 6 815c4721 10 2 2 BUS NETWORK CONTROLLER ANTILOCK BRAKE CAB ENGINE CONTROL MODULE ECM OBD INSTRUMENT CLUSTER AUTOMATIC TEMPERATURE CONTROL MODULE ATC 24 40 SCHEMATIC DIAGRAMS C1 18 C1 17 C1 17 C1 20 DG WT DG WT CAN C BUS 4 4 CAN BUS DG DG CAN C BUS CAN C BUS DGAWT DGANT CAN C BUS 5 BUS DG DG CAN BUS CAN C BUS DG WT DG WT CAN C BUS 4 5 BUS DG DG CAN C BUS BUS DG WT DG WT CAN C BUS JA BUS DG DG CAN C BUS GAN C BUS 291 C2 H C2 L TRANSMISSION CONTROL MODULE TCM SHIFTER ASSEMBLY SENTRY KEY REMOTE ENTRY MODULE SKREEM STEERING ANGLE SENSOR 815c46e9 5 H D R A M 5 SCHEMATIC DIAGRAMS 10 3 HEATING
27. Set Condition When the ACM detects low resistance in the Passenger Seat Belt Tensioner circuits POSSIBLE CAUSES PASSENGER SEAT BELT TENSIONER LINE 1 SHORT TO LINE 2 PASSENGER SEAT BELT TENSIONER CIRCUIT SHORT ACM PASSENGER SEAT BELT TENSIONER CIRCUIT SHORT STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on All NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 5 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery must be disconnected WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Passenger Seat Belt Tensioner connector NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool to the Passenger Seat Belt Tensioner connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION ON THEN RECONNECT THE BATTERY With the DRBIII9 read the active Airbag Control Module 5 Does the DRBIII show PASSENGER SEAT BELT TENSIONER CIRCUIT SHORT Yes GoTo 3 Passenger Seat Belt Tensioner in accordance with the Service nformation Perform AIRBAG VERIFICATION TEST VER 1 49 AIRBAG PASSENGER SEAT B
28. Yes Repair the K ACM circuit for a short to voltage Perform _ AIRBAG VERIFICATION TEST VER 1 No GoTo 4 102 COMMUNICATION NO RESPONSE FROM AIRBAG CONTROL MODULE Continued ACTION APPLICABILITY WARNING TURN THE IGNITION OFF DISCONNECT THE BATTERY AND All WAIT TWO MINUTES BEFORE PROCEEDING FAILURE TO DO SO MAY RESULT IN PERSONAL URY OR DEATH Disconnect the ACM harness connector Disconnect the from the DLC Measure the resistance of the K ACM circuit between the ACM connector and the DLC 15 the resistance below 5 0 ohms Yes ReplacetheAirbag Control Modulein accordance with the Service Information Perform AIRBAG VERIFICATION TEST VER 1 Repair the K ACM circuit for an open Perform _AIRBAG VERIFICATION TEST VER 1 103 COMMUNICATION Symptom NO RESPONSE FROM AUTOMATIC TEMPERATURE CONTROL POSSIBLE CAUSES CHECK POWERS AND GROUNDS TO THE AUTOMATIC TEMPERATURE CONTROL MODULE INTERNAL SHORT TO GROUND K IC HBM CHM CIRCUIT SHORTED TO GROUND MODULE INTERNAL SHORT TO VOLTAGE K IC ATC HBM CHM CIRCUIT SHORTED TO VOLTAGE ATC HBM CHM CIRCUIT OPEN AUTOMATIC TEMPERATURE CONTROL ACTION APPLICABILITY Turn the ignition off All Disconnect the Automatic Temperature Control harness connectors Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located in the service information to
29. 134 AIR OUTLET TEMP SENSOR SHORTED LOW 136 FUNCTION TEST COOL FAILURE Sn vu eramud ow ec e 138 FUNCTION TEST FAILURE vaade CRI tenas egle 138 FUNCTION TEST HEAT FAILURE 138 AUX FAN RELAY CONTROL HIGH OR OPEN 140 AUX FAN RELAY CONTROL SHORTED LOW ACTIVE 142 BLOWER STAGE 1 HIGH OR OPEN 144 BLOWER STAGE 1 SHORTED LOW 146 CABIN HEATER CONTROL HIGH OR OPEN 148 CABIN HEATER CONTROL SHORTED LOW ACTIVE 150 CIRC PUMP CONTROL HIGH OR OPEN 152 CIRC PUMP CONTROL SHORTED LOW ACTIVE 154 EVAP TEMP SENSOR OH OPEN 156 EVAP TEMP SENSOR SHORTED LOW ACTIVE 158 NO COMMUNICATION BUS ACTIVE niece hm v ge ROVER 160 NO COMMUNICATION WITH ECM ACTIVE 163 NO COMMUNICATION WITH IC ACTIVE 53592255 165 RECIRC AIR SOLENOID CONTROL HIGH OR OPEN ACTIVE 167 RECIRC AIR SOLENOID CONTROL SHORTED LOW ACTIVE 169 REFRIG PRESS SENSOR HIGH OR OPEN 171 HEFRIG PRESS SENSOR SHORTED
30. Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the Rear Door J amb Switch connector Ensure the sliding door s are dosed or the switches are disconnected Observe the courtesy lamps Did the courtesy lamps go off Yes Replace the Rear Door amb Switch Perform BODY VERIFICATION TEST VER 1 GoTo 4 Turn the ignition off Disconnect the Security System Module C1 connector Ensure the sliding and rear doors are closed or the switches are disconnected Observe the courtesy lamps Did the courtesy lamps go off Yes Replace the Security System Module in accordance with service information Perform BODY VERIFICATION TEST VER 1 Repair the Rear Courtesy Lamps Control circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 230 VEHICLE THEFT SECURITY Symptom RKE INTERFACE CIRCUIT FAILURE SSM amaan When Monitored and Set Condition RKE INTERFACE CIRCUIT FAILURE SSM When Monitored Whenever the battery voltage is above 10 0 volts and the Security System Module is connected Set Condition If the Security System Module senses a poor or no connection to the Central Timer Module this code will set POSSIBLE CAUSES DTC PRESENT SECURITY SYSTEM MODULE SHORTED RKE INTERFACE WIRE SHORTED RKE INTERFACE WIRE OPEN CENTRAL TIMER MODULE FAILURE ACTION APPLICABILITY With the DRBIIIS record and erase All Cycle the ignition switch from
31. VER 1 168 HEATING amp Symptom RECIRC AIR SOLENOID CONTROL SHORTED LOW ACTIVE POSSIBLE CAUSES RECIRCULATED AIR SOLENOID VALVE CONTROL CIRCUIT SHORTED TO GROUND RECIRCULATED AIR SOLENOID VALVE CONTROL CIRCUIT SHORTED TO GROUND CIRCUIT RECIRCULATED AIR SOLENOID VALVE CONTROL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT AUTOMATIC TEMPERATURE CONTROL ATC RECIRCULATED AIR SOLENOID VALVE ACTION APPLICABILITY Turn the ignition off All Disconnect the Recirculated Air Solenoid Valve harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between ground and the Recirculated Air Solenoid Valve Control circuit 15 the resistance below 10k ohms Yes Repair the Redrculated Air Solenoid Valve Control circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the Recirculated Air Solenoid Valve harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the Recirculated Air Solenoid Valve Control circuit and the Ground circuit in the Automatic Temperature Control C1 harness connector Is the resistance below 10k ohms Yes Repair the Recirculated Air Solenoid Valve Control circuit for a short to the Ground circuit Perform BODY VERIFICATION TEST VER 1 GoTo 3 Turn the ignition off Disconnect the Recirculated Air Solenoid Valve
32. Yes Repair the K CTM SSM circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 Central Timer Module in accordance with the service information Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the SSM harness connectors Disconnect the DRBIII9 from the DLC Measure the resistance of the K CTM SSM circuit between the SSM connector and the DLC Is the resistance below 5 0 ohms Yes Replace the Security System Module in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 No Repair the K CTM SSM circuit for an open Perform BODY VERIFICATION TEST VER 1 121 COMMUNICATION Symptom NO RESPONSE FROM SENTRY KEY REMOTE ENTRY MODULE POSSIBLE CAUSES CHECK POWERS AND GROUNDS TO THE SENTRY KEY REMOTE ENTRY MODULE K SKREEM CIRCUIT SHORTED TO GROUND K SKREEM CIRCUIT SHORTED TO VOLTAGE K SKREEM CIRCUIT OPEN SENTRY KEY REMOTE ENTRY MODULE ACTION APPLICABILITY Turn the ignition off AII Disconnect the SKREEM harness connector Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located the service information to help isolate an open or shorted condition Repair as necessary Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the SKREEM harness connector Disconnect the DRBIII9 from the DLC Measure th
33. 5 Turn the ignition off and remove the key UsingtheRKE transmitter operate the Door Locks several times while observing the DRBIII Wait 10 seconds Does the DRBIII9 display UNKNOWN TROUBLE CODE UNKNOWN TYPE 2 Yes Replace the Sentry Key RemotE Entry Module Perform BODY VERIFICATION TEST VER 1 Theconditions that caused this code to set are not present at this time Using the RKE transmitter operate the door locks several times re check for any DTC s Perform BODY VERIFICATION TEST VER 1 209 POWER DOOR LOCKS RKE Symptom RKE INOPERATIVE POSSIBLE CAUSES DTC PRESENT TRANSMITTER INOPERATIVE CENTRAL TIMER MODULE SKREEM OPEN ACTION APPLICABILITY With the DRBIII9 read All Turn the ignition off and remove the key UsingtheRKE transmitter operate the Door Locks several times while observing the DRBIII Wait 10 seconds Does the DRBIII9 display any Door Lock or RKE related Yes Refer to symptom list for problems related to POWER DOOR LOCKS RKE Perform BODY VERIFICATION TEST VER 1 GoTo 2 Ensure the batteries in the transmitter are good before proceeding Using the Miller Tool 9001 RF DETECTOR test the transmitter Does the transmitter pass the rest Yes GoTo 3 Replace and program the RKE Transmitter Perform BODY VERIFICATION TEST VER 1 NOTE If only one of the transmitters used with this vehicle is inoperative follow the i
34. ATC C1 harness connector and the Refrigerant Pressure Sensor harness connector 15 the resistance below 5 0 ohms Yes GoTo 6 Repair 5 Volt Supply circuit for an open Perform BODY VERIFICATION TEST VER 1 Disconnect the Refrigerant Pressure Sensor harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance of the Refrigerant Pressure Sensor Feedback circuit between theAutomatic Temperature Control ATC C1 harness connector and the Refrigerant Pressure Sensor harness connector 15 the resistance below 5 0 ohms Yes GoTo 7 Repair the Refrigerant Pressure Sensor Feedback circuit for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Refrigerant Pressure Sensor harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance of the Sensor Ground circuit between the Automatic Temperature Control ATC harness connector and the Refrigerant Pressure Sensor harness connector Is the resistance below 5 0 ohms Yes Replace the Refrigerant Pressure Sensor in accordance with the Service nformation Perform BODY VERIFICATION TEST VER 1 Repair the Sensor Ground circuit for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off NOTE Check connectors Clean repair as
35. DRIVER SQUIB 1 CIRCUIT OPEN Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI All TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Driver Airbag Squib connector s NOTE Check connectors Clean and repair as necessary WARNING TO AVOID PERSONAL URY OR DEATH DO NOT PLACE AN INTACT UNDEPLOYED AIRBAG FACE DOWN ON AHARD SURFACE THE AIRBAG WILL PROPEL INTO THE AIR IF ACCIDENTALLY DEPLOYED Connect the appropriate Load Tool to the Driver Airbag connector s WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 read the active Airbag Control Module 5 Does the DRBIII show DRIVER SQUIB 1 CIRCUIT OPEN Yes GoTo 3 Replace the Driver Airbag in accordance with the Service nfor mation Perform AIRBAG VERIFICATION TEST VER 1 WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Load Tool from the Driver Airbag connector s Disconnect the Clockspring connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool to the Clockspring connector s WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 read the active Airbag Control Module Does the DRBIII9 show DRI
36. Disconnect the DRBIII from the DLC Disconnect the Heater Booster Module harness connector Turn the ignition on Using a 12 volt test light connected to ground probe the K IC ATC HBM CHM circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes GoTo 5 GoTo 6 Turn the ignition off Disconnect the Heater Booster Module harness connector Turn the ignition on Using a 12 volt test light connected to ground probe the K IC ATC HBM CHM circuit While monitoring the test light disconnect each module IC ATC CHM one at a time NOTE The vehicle may not be equipped with all the above modules NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly with all the above modules disconnected Yes Repair the K IC ATC HBM CHM circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 Replace the Module that when disconnected the short was eliminated in accordance with the service information Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Heater Booster Module harness connector Disconnect the DRBIII9 from the DLC Measure the resistance of the ATC HBM CHM circuit between the HBM connector and the DLC 15 the resistance below
37. Replace the Driver Door amb Switch Perform BODY VERIFICATION TEST VER 1 No GoTo 3 216 VEHICLE THEFT SECURITY FRONT DOOR J AMB SWITCH CIRCUIT SHORT TO GROUND Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the Passenger Door J amb Switch connector Ensure the driver door is closed or the switch is disconnected Observe the courtesy lamps Did the courtesy lamps go off Yes Replace the Passenger Door amb Switch Perform BODY VERIFICATION TEST VER 1 GoTo 4 Turn the ignition off Disconnect the Security System Module C1 connector Ensure the driver and passenger doors are closed or the switches are disconnected Observe the courtesy lamps Did the courtesy lamps go off Yes Replace the Security System Module in accordance with service information Perform BODY VERIFICATION TEST VER 1 Repair the Front Courtesy Lamps Control circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 217 VEHICLE THEFT SECURITY Symptom List INTERNAL ERROR SSM TOWING INCLINATION SENSOR BEYOND LIMITS TOWING INCLINATION SENSOR VALUE IS INVALID TOWING INCLINATION SENSOR VALUE IS MISSING Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be INTERNAL ERROR SSM When Monitored and Set Condition INTERNAL ERROR SSM When Monitored Whenever the battery voltage is above 10 0 volts and th
38. STORED 130 AUX FAN RELAY CONTROL SHORTED LOW STORED 130 BLOWER STAGE 1 HIGH OR OPEN 5 130 BLOWER STAGE 1 SHORTED LOW 5 130 CABIN HEATER CONTROL HIGH OR OPEN STORED 130 CABIN HEATER CONTROL SHORTED LOW 5 130 CIRC PUMP CONTROL HIGH OR OPEN 5 130 CIRC PUMP CONTROL SHORTED LOW 5 130 EVAP TEMP SENSOR HIGH OR OPEN 5 130 EVAP TEMP SENSOR SHORTED LOW STORED 130 NO COMMUNICATION BUS STORED 41 ide md ep RR Ram oie 130 NO COMMUNICATION WITH ECM STORED 130 NO COMMUNICATION WITH IG STORED he eb hee 130 RECIRC AIR SOLENOID CONTROL HIGH OR OPEN STORED 130 RECIRC AIR SOLENOID CONTROL SHORTED LOW STORED 130 REFRIG PRESS SENSOR HIGH OR OPEN 5 130 REFRIG PRESS SENSOR SHORTED LOW 5 130 WATER CYCLE VALVE CONTROL HIGH OR OPEN STORED 5 44 sue 130 WATER CYCLE VALVE CONTROL SHORTED LOW STORED 130 TABLE OF CONTENTS Continued COMPRESSOR CONTROL SHORTED LOW 132 AIR OUTLET TEMP SENSOR HIGH OR OPEN ACTIVE
39. When Monitored Whenever the battery voltage is above 10 0 volts and the Security System Module is connected Set Condition The Security System Module detects the incorrect voltage on the Intrusion Sensor drcuit POSSIBLE CAUSES DTC PRESENT GROUND CIRCUIT OPEN INTRUSION SENSOR ACTION APPLICABILITY With the DRBIII record and erase All Remove the ignition key Close and lock all doors and set the Vehide Theft Security System Wait 1 minute Disarm the Vehicle Theft System With the DRBIII9 read Does the DRBIII9 display the same DTC Yes GoTo 2 Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 Disconnect the Intrusion Sensor No 3 connector Measure the resistance of the Ground circuit at the Intrusion Sensor connector 15 the resistance below 5 0 ohms Yes Replace the Intrusion Sensor Perform BODY VERIFICATION TEST VER 1 Repair the Ground circuit for an open Perform BODY VERIFICATION TEST VER 1 228 VEHICLE THEFT SECURITY Symptom REAR OR SLIDING DOOR JAMB SWITCH CIRCUIT SHORT TO GROUND When Monitored and Set Condition REAR OR SLIDING DOOR J AMB SWITCH CIRCUIT SHORT TO GROUND When Monitored Whenever the battery voltage is above 10 0 volts and the Security System Module is connected Set Condition lf a rear or sliding door jamb switch is clos
40. amp A C 10 3 1 AUTOMATIC TEMPERATURE CONTROL ATC AUTO TEMP FUSE BLOCK CONTROL ATC BLOCK Top 2 ELE 8 NO 1 RELAY 7 TT RD YLANT 1 1 PETERS 1 ENGINE 1 1 D Hely 1 1 RD BL E ra p RUN 4 RD BK WT Output C18 Fused RD BL L g a BATTERY 4 FUSES 1 FUSE 20 BL VT i RD BL Fused B RD 1 INSTRUMENT 4 D Relay Control C2 5 e p 04 CLUSTER i FUSE 1 4 i eee 1 AIC COMPRESSOR NOT a ers 1 BL DG CLUTCH USED Compressor Clutch 1 1 Control FUSE Er 12f RELAY 1 t 1 022r CIRCULATION TO BL YL l FUSE BATT i Fused 9 1 DG AD PUMP BLOCK U U 1 Circulation BR NO 3 FUSE I Pump Control DG RD Da Ground 1 2 2 2 2 AIG Aux C1 2 1 2 1 Fan Relay RD BK WT 1 TO High Side Fused B 4 BATT Control WATER CYCLE Y FUSE9 AUXILIARY 1 BRAT VAVE L J 1 Water Valve 1 l Control BR RD WT RELAY i C15 1 2 BLL TO 1 Fan Stage 1 Relay CABIN DG BK A High side Control HEATER AIC Aada HEATER uxiliary Fan 1 5
41. structions Perform AIRBAG VERIFICATION TEST VER 1 WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair Replace the Airbag Control Module in accordance with Service Instructions Perform AIRBAG VERIFICATION TEST VER 1 AIRBAG AIRBAG WARNING INDICATOR DRIVER HIGH Continued ACTION APPLICABILITY With the DRBIII record and erase all DTC s from all Airbag modules All If equipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors Look for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 monitor active codes as you work through the fol
42. vehicle to customer 55 AIRBAG Symptom PASSENGER SQUIB 1 CIRCUIT OPEN When Monitored and Set Condition PASSENGER SQUIB 1 CIRCUIT OPEN When Monitored With theignition on theACM monitors theresistance of the Passenger Squib 1 circuits Set Condition When theACM detects an open circuit or high resistance on the Passenger Squib 1 circuits POSSIBLE CAUSES PAB SQUIB 1 CIRCUIT OPEN PAB SQUIB 1 LINE 1 OR LINE 2 CIRCUIT OPEN ACM PAB SQUIB 1 CIRCUIT OPEN STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on AII NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC 5 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery must be disconnected 56 AIRBAG PASSENGER SQUIB 1CIRCUIT OPEN Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL URY OR DEATH TURN THE IGNI AII TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Passenger Airbag connector s NOTE Check connectors Clean and repair as necessary WARNING TO AVOID PERSONAL INJ URY OR DEATH DO NOT PLACE INTACT UNDEPLOYED AIRBAG FACE DOWN ON AHARD SURFACE THE AIRBAG WILL PROPEL INTO THE AIR IF ACCIDENTALLY DEPLOYED Connect the Load
43. 203 F A substitute value of 111 1 F indicates an Air Outlet Temperature Sensor circuit failure Coolant Temperature The Engine Control Module transmits Coolant Temperature Sensor date In the event of a CAN Bus communication failure 257 F is displayed as a substitute value Interior Temperature Controller The normal rangefor the Blend control is from 62 F to 144 F This value represents the temperature set by the operator An implausible temperature value or a temperature value that fails to change when rotating the Blend control indicates that the Blend control is bad The repair in this case would be to replace the ATC Module since the Blend control integral to the module Refrigerant Pressure The normal range for the Refrigerant Pressure Sensor is from 29 PSI to 406 PSI A substitute value of 413 PSI indicates a Refrigerant Pressure Sensor circuit failure In addition the normal range for Pressure Sensor voltage is 0 volts to 5 volts A value of 0 9 volts indicates an open voltage supply circuit while a value of 999 indicates an open in all three sensor circuits Water Cycle Valve The normal range of the Water Cyde Valve is from 0 to 100 The value indicates the extent to which the valve is closed A value of 10096 indicates that the valve is fully closed Intense Inst Light The Instrument Cluster transmits this data The normal range for lighting intensity is from 096 to 10096 The value indicates the extent to w
44. ATC DTCs 7 Placethe shift lever in Park 8 Start the engine Allow the engine to reach normal operating temperature 9 Set the blower to high speed 10 Press the Air Conditioning switch On 11 With the DRBIIIS verify that the ambient temperatureis above 59 F 15 C therefrigerant pressure is between 29 and 348 PSI 2 and 24 bar the evaporator temperature is above 36 5 F 2 5 C and the coolant temperature is above 158 F 70 12 With the DRBIII in select System Tests and select ATC Function Test When theATC Function Test is complete proceed to the next step of this procedure 13 With the DRBIII read active ATC DTCs If any DTC is active or if the original condition is still present proceed to the conclusion question and answer Yes 14 With the DRBIIIS record and erase all DTCs from ALL modules Start and run the engine for 2 minutes Operate all functions of the system that caused the original concern 15 Turn the ignition off and wait 5 seconds Turn the ignition on and using the DRBIIIS read DTCs from ALL modules Are any DTC s present or is the original condition still present Yes Repair is not complete refer to the appropriate symptom Repair is complete 245 VERIFICATION TESTS Verification Tests Continued HEATER VERIFICATION TEST VER 1 1 WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE
45. AVOID PERSONAL URY OR DEATH TURN IGNITION AII OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Load Tool from the Passenger SBT connector Disconnect the Airbag control Module connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool ACM Adaptor to the Airbag Control Module connector Measure the resistance of the Passenger Seat Belt Tensioner Line 1 and Line 2 circuits between the Load Tool Adaptor and the Passenger SBT connector Is the resistance below 1 0 ohms on either circuit Yes GoTo 4 Repair open or high resistance in Passenger Seat Belt Tensioner Line 1 or Line 2 circuits Perform AIRBAG VERIFICATION TEST VER 1 WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair ReplacetheAirbag Control Module in accordance with the Service information Perform AIRBAG VERIFICATION TEST VER 1 With the DRBIII record and erase all DTC s from all Airbag modules If equipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT
46. BELT TENSIONER SHORT TO 28 DRIVER SEAT BELT TENSIONER SHORT 31 DRIVER SQUIB T GIBGUIT OPEN PLE ERR RAS Ama made esi 33 DRIVER SQUIB 1 CIRCUIT SHORT cise re m hh E REPRE RP ehh 36 DRIVER SQUIB 1 SHORT TO BATTERY i sk zt omme od oe i RS 39 DRIVER SQUIB 1 SHORT TO GROUND Re RR 42 LOSS GFIGNIMON RUN START o3 ut pae PR dra cbe nemad ES IEEE RET 45 PASSENGER SEAT BELT TENSIONER CIRCUIT 47 PASSENGER SEAT BELT TENSIONER CIRCUIT SHORT 49 PASSENGER SEAT BELT TENSIONER SHORT TO BATTERY 51 PASSENGER SEAT BELT TENSIONER SHORT TO GROUND 54 PASSENGER SQUIB 1 CIRCUIT OPEN sisalduse RS 56 PASSENGER SQUIB 1 CIRCUIT SHORT si ei ama mi aaa muda vana ad 59 PASSENGER SQUIB 1 SHORT 62 PASSENGER SQUIB 1 SHORT TO GROUND erm a 65 AIRBAG WARNING INDICATOR 68 CABIN HEATER A HEATER PRE TES T deka maaelus aata 69 CIRC PUMP CONTROL OPEN 22151 ge kina PES CIRC PUMP CONTROL 5 da kana 74 COMBUST FAN SHORTED s ur aiia ic Ri et xe de Rer deii ie cn 76 COMBUST FAN SPEED INCORRECT testimine Er aede dei Rp 76 COMBUSTION FAN O
47. BELT TENSIONER SHORT TO BATTERY Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION AII OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Load Tool from the Passenger Seat Belt Tensioner connector Disconnect the Airbag Control Module Connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool ACM Adaptor to the Airbag Control Module connector s WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION ON THEN RECONNECT THE BATTERY Measure the voltage of the Passenger SBT Line 1 and Line 2 circuits between the Passenger Seat Belt Tensioner connector and ground Is there any voltage on either circuit Yes Repair the Passenger Seat Belt Tensioner Line 1 or Line 2 short to battery Perform AIRBAG VERIFICATION TEST VER 1 GoTo 4 WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair Replace theAirbag Control Modulein accordance with the Service Information Perform AIRBAG VERIFICATION TEST VER 1 52 AIRBAG PASSENGER SEAT BELT TENSIONER SHORT TO BATTERY Continued ACTION APPLICABILITY With the DRBIII record and erase all DTC s from all Airbag modules All If equipp
48. BUS a CAN C BUS Os i Fused B BL BK Fuel Level Sensor Signal FUEL BR Fuel Level Sensor Signal Return LEVEL SENSOR BL DG Ambient Temperature Sensor Signal 1 2 BR DG Ambient Temperature Sensor Signal Return AIRBAG CONTROL MODULE AIRBAG WARNING INDIGATOR DRIVER BR Ground 81160899 5 H D R A M 5 295 SCHEMATIC DIAGRAMS 10 5 DOOR LOCKS RKE FRONT DOORS 10 5 1 9 HdHlO OL M 54000 Oud 4007 soog Jefiuessey 92000 d asuen 1000 14 99 TAA CENTRAL TIMER MODULE 1000 1 JAG 4207 1000 94 79 COMMAND saaug YSO U 1000 AUG ASUAS xoopuf 100 9 4 29425 4907 1000 ISALC MAATA HJON3SSvVd Si CONTACT COMMAND DOOR PASSENGER DOOR DRIVER DOOR LOCK DOOR LOCK MOTOR MOTOR AJAR AJAR 810d58a8 LATCH ASSEMBLY LATCH ASSEMBLY gt lt 296 SCHEMATIC DIAGRAMS 10 5 2 SLIDING AND REAR DOORS CENTRAL TIMER MODULE BL RD Passenger Doors Lock Driver YLANT Left Sliding Door
49. CIRCUIT FAILURE SSM 25 ore e RR RR RE end es bos 231 SECURITY SYSTEM INTERFACE FAILURE 55 233 SIREN CIRCUIT OPEN SHORTED TO 235 SIREN INTERNAL FAILURE 552 2 eu E er be wk ee Se hoe ul 237 SIREN SIGNAL CONTROL CIRCUIT SHORT TO GROUND 238 WINDSHIELD WIPER amp WASHER CHECKING THE RAIN SENSOR WIPER 239 VERIFICATION TESTS VERIFICATION TESTS ROCA n ORE RR eet 244 COMPONENT LOCATIONS 5 45 4545 aan tn ansa eee sade ARR 249 8 1 AIRBAG SYSTEM ld ERES 249 8 2 AIRBAG CONTROL MODULE be Fue howd mahl oe RE RES 249 83 DRIVER AIRBAG 249 8 4 GLOCKSPRING ERR RE CERERI eec et 250 8 5 SEAT BELT TENSIONER emas EE G3 nares Be 250 B5 HEATING amp AUG vs ou unum send s b ede rac 250 8 6 1 AUTOMATIC TEMPERATURE CONTROL SYSTEM COMPONENTS 224000 trarre RR nan ee 250 8 6 2 CABIN HEATER 8 HEATER BOOSTER SYSTEM COMPONENTS 251 8 6 3 AUTO TEMP CONTROL CABIN HEATER 8 HEATER BOOSTER FUSES 8 RELAYS aate age cee tee eee Rs 251 8 6 4 EVAP TEMP SENSOR 8 AIR OUTLET TEMP SENSOR 251 INSTRUMENT CLUSTER 22542425555 Hee ee tet
50. Close and lock all doors and set the Vehide Theft Security System Wait 1 minute Disarm the Vehicle Theft System With the DRBIII9 read Does the DRBIII9 display the same DTC Yes GoTo 2 Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 Disconnect the Intrusion Sensor No 2 connector Measure the resistance of the Ground circuit at the Intrusion Sensor connector Is the resistance below 5 0 ohms Yes Replace the Intrusion Sensor Perform BODY VERIFICATION TEST VER 1 Repair the Ground circuit for an open Perform BODY VERIFICATION TEST VER 1 225 VEHICLE THEFT SECURITY Symptom INTRUSION SENSOR 3 CIRCUIT OPEN SHORT TO GROUND When Monitored and Set Condition INTRUSION SENSOR 3 CIRCUIT OPEN SHORT TO GROUND When Monitored Whenever the battery voltage is above 10 0 volts and the Security System Module is connected Set Condition The Security System Module detects the incorrect voltage on the Intrusion Sensor circuit POSSIBLE CAUSES DTC PRESENT FUSE 2 FUSE BLOCK FUSED B WIRE OPEN GROUND CIRCUIT OPEN INTRUSION SENSOR 3 SIGNAL SHORTED INTRUSION SENSOR 3 SIGNAL CIRCUIT OPEN INTRUSION SENSOR INTERFACE WIRE SHORTED INTRUSION SENSOR INTERFACE WIRE OPEN INTRUSION SENSOR ACTION APPLICABILITY With the DRBIII9 record and erase All Remove the ignition
51. Condition This DTC will set if specific operating criteria are not met when attempting to run the ATC Function Test ATC FUNCTION TEST HEAT FAILURE When Monitored With the engine running Set Condition This DTC will set if specific operating criteria are not met when attempting to run the ATC Function Test POSSIBLE CAUSES ATC FUNCTION TEST OPERATING CRITERIA NOT MET AUTOMATIC TEMPERATURE CONTROL ATC DTC S PRESENT ENGINE CONTROL MODULE DTC S PRESENT CRITERIA TO RUN ATC FUNCTION TEST NOT MET AND NO DTCS PRESENT 138 HEATING amp FUNCTION TEST COOL FAILURE Continued ACTION APPLICABILITY Verify that all of the following criteria was met when attempting to run the ATC All Function Test The vehicle was stationary The engine was running The air conditioning switch was On The ambient temperature was above 59 F 15 C The refrigerant pressure was between 29 and 348 PSI 2 and 24 bar The evaporator temperature was above 36 5 F 2 5 C The coolant temperature was above 158 F 70 Was all criteria met when attempting to run the ATC Function Test Yes GoTo 2 Attempt to activate theATC Function Test when all of the specific operating criteria are met If the criteria cannot met proceed to Test 2 of this procedure Perform BODY VERIFICATION TEST VER 1 Turn the ignition on With the DRBIII9 read Automatic Temperature Control DTCs Does the DRBIII9 display
52. Condition This DTC will set if the Overheating Sensor s resistance is not within the expected parameters POSSIBLE CAUSES OVERHEATING SENSOR ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH CAUTION DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY THE HEATER PRE TEST ALWAYS PERFORM THE HEATER PRE TEST PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE VALID Turn the ignition off View repair Repair Replace the Cabin H eater Assembly or Heater Booster Assembly in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 97 CABIN Symptom List TEMP SENSOR OPEN TEMP SENSOR SHORTED Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be TEMP SENSOR OPEN When Monitored and Set Condition TEMP SENSOR OPEN When Monitored During heater activation and operation Set Condition This DTC will set if the Temperature Sensor s resistance is not within the expected parameters TEMP SENSOR SHORTED When Monitored During heater activati
53. Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the Blower Motor Resistor harness connector Disconnect the Blower Motor harness connector Disconnect the Automatic Temperature Control ATC C2 harness connector Measure the resistance between ground and each of the Blower Motor Driver circuits Low M1 M2 High 15 the resistance below 10k ohms on any of the circuits Yes Repair each circuit with a resistance below ohms for a short to ground Remove and inspect the Blower Motor Fuse and replace it if necessary Perform BODY VERIFICATION TEST VER 1 GoTo 4 Turn the ignition off Remove the Blower Motor Fuse Disconnect the Automatic Temperature Control ATC C2 harness connector Measure the resistance between ground and the Fused B circuit 15 the resistance below 10k ohms Yes Repair the Fused B circuit for a short to Ground Remove and inspect the Blower Motor Fuse and replace it if necessary Perform BODY VERIFICATION TEST VER 1 GoTo 5 Turn the ignition off Disconnect the Blower Motor Resistor Block harness connector Measure the resistance between Blower Motor Resistor Block cavity 2 and cavity 1 The approximate resistance should be 1 4 ohms Measure the resistance between Blower Motor Resistor Block cavity 2 and cavity 3 The approximate resistance should be 0 8 ohms Measure the resistance between Blower Motor Resistor Block cavity 2 and cavity 4 The ap
54. FAN RELAY CONTROL HIGH OR OPEN Yes Replace theAutomatic Temperature Control ATC in accordance with the Service Information Reinstall the original A C Auxiliary Fan Relay Perform BODY VERIFICATION TEST VER 1 Replace the original A C Auxiliary Fan Relay in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 141 HEATING amp Symptom AUX FAN RELAY CONTROL SHORTED LOW ACTIVE POSSIBLE CAUSES A C AUXILIARY FAN RELAY A C AUXILIARY FAN RELAY HIGH SIDE CONTROL CIRCUIT SHORTED TO GROUND A C AUXILIARY FAN RELAY HIGH SIDE CONTROL CIRCUIT SHORTED TO GROUND CIRCUIT AUTOMATIC TEMPERATURE CONTROL ATC A C AUXILIARY FAN RELAY HIGH SIDE CONTROL CKT SHORTED TO SENSOR GROUND CKT ACTION APPLICABILITY Turn the ignition off All Install a substitute relay in place of the A C Auxiliary Fan Relay NOTE of the following criteria must be met in order to successfully run the ATC Function Test Place the shift lever in Park Turn the ignition on With the record and erase ATC Start the engine Allow the engine to reach normal operating temperature Set the blower to high speed Press the Air Conditioning switch On With the DRBIIIS verify that the ambient temperature is above 59 F 15 the refrigerant pressure is between 29 and 348 PSI 2 and 24 bar the evaporator temperature is above 36 5 F 2 5 C and the coolant temperature is above 158 F 70 C
55. Fuse Block 3 15 the fuse open Yes Check for a short to ground and replace the fuse Perform BODY VERIFICATION TEST VER 1 No GoTo 3 223 VEHICLE THEFT SECURITY INTRUSION SENSOR 2 CIRCUIT OPEN SHORT TO GROUND Continued ACTION APPLICABILITY Disconnect the Intrusion Sensor No 2 connector Measure the voltage of the Fused B circuit 15 the voltage above 10 0 volts Yes GoTo 4 Repair the Fused B circuit for an open Perform BODY VERIFICATION TEST VER 1 Disconnect the Intrusion Sensor No 2 connector Measure the resistance of the Ground circuit at the Intrusion Sensor connector 15 the resistance below 5 0 ohms Yes GoTo 5 Repair the Ground circuit for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Security System Module C2 connector Disconnect the Intrusion Sensor No 2 connector Measure the resistance between ground and the Intrusion Sensor 2 Signal circuit Is the resistance below 5 0 ohms Yes Repair the Intrusion Sensor 2 Signal wire for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 6 Yes GoTo 7 Repair the Intrusion Sensor 2 Signal wire for an open Perform BODY VERIFICATION TEST VER 1 Disconnect the Intrusion Sensor No 2 connector Disconnect the Security System Module C2 connector Measure the resistance between ground and the Intrusion Sensor Interface circu
56. GoTo 5 Repair the Ground circuit for an open Perform BODY VERIFICATION TEST VER 1 Disconnect the Siren connector Disconnect the Security System Module C2 connector Measure the resistance between ground and the Siren Signal Control circuit 15 the resistance below 5 0 ohms Yes Repair the Siren Signal Control circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 No GoTo 6 Disconnect the Siren connector Disconnect the Security System Module C2 connector Measure the resistance of the Siren Signal Control circuit between the SSM C2 connector and the Siren connector 15 the resistance below 5 0 ohms Yes Replace the Siren Perform BODY VERIFICATION TEST VER 1 Repair the Siren Signal Control circuit for an open Perform BODY VERIFICATION TEST VER 1 236 VEHICLE THEFT SECURITY Symptom SIREN INTERNAL FAILURE When Monitored and Set Condition SIREN INTERNAL FAILURE When Monitored Whenever the battery voltage is above 10 0 volts and the Security System Module is connected Set Condition If the Siren internal test fails this DTC will set POSSIBLE CAUSES DTC PRESENT SIREN ACTUATION SIREN ACTION APPLICABILITY With the DRBIII record and erase All Remove the ignition key Close and lock all doors and set the Vehide Theft Security System Wait 1 minute Disarm the Vehicle Theft System With the DRBIII read Does the DR
57. HBM CHM one at a time NOTE The vehicle may not be equipped with all the above modules Is the resistance below 5 0 ohms with all the above modules disconnected Yes Repair the ATC HBM CHM circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 Replace the Module that when disconnected the short was eliminated in accordance with the service information Perform BODY VERIFICATION TEST VER 1 116 COMMUNICATION NO RESPONSE FROM INSTRUMENT CLUSTER Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the DRBIII from the DLC Disconnect the Instrument Cluster harness connectors Turn the ignition on Using a 12 volt test light connected to ground probe the K IC ATC HBM CHM circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes GoTo 5 GoTo 6 Turn the ignition off Disconnect the Instrument Cluster harness connectors Turn the ignition on Using a 12 volt test light connected to ground probe the K IC ATC HBM CHM circuit While monitoring the test light disconnect each module ATC HBM CHM time NOTE The vehicle may not be equipped with all the above modules NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illu
58. HEATER BOOSTER MODULE ACTION APPLICABILITY Turn the ignition off All Disconnect the Heater Booster Module harness connector Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located in the service information to help isolate an open or shorted condition Repair as necessary Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the Heater Booster Module harness connector Disconnect the 2 from the DLC Measure the resistance between ground and the K IC ATC HBM CHM circuit 15 the resistance below 5 0 ohms Yes GoTo 3 GoTo 4 Turn the ignition off Disconnect the Heater Booster Module harness connector Measure the resistance between ground and the K IC ATC HBM CHM circuit While monitoring the ohmmeter disconnect each module IC ATC CHM one at a time NOTE The vehicle may not be equipped with all the above modules Is the resistance below 5 0 ohms with all the above modules disconnected Yes Repair the ATC HBM CHM circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 Replace the Module that when disconnected the short was eliminated in accordance with the service information Perform BODY VERIFICATION TEST VER 1 114 COMMUNICATION NO RESPONSE FROM HEATER BOOSTER MODULE Continued ACTION APPLICABILITY Turn the ignition off All
59. IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Load Tool from the Clockspring connector Disconnect the Airbag Control Module connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool Adaptor to the Airbag Control Module connector Measure the resistance of the Driver Squib 1 Line 1 and Line 2 circuits between Clockspring connector and ground Is the resistance below 10K ohms on either circuit Yes Repair Driver Squib 1 Line lor Line 2 circuits shorted to ground Perform AIRBAG VERIFICATION TEST VER 1 GoTo 5 43 AIRBAG DRIVER SQUIB 1 SHORT TO GROUND Continued ACTION APPLICABILITY WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY AII TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair Replace the Airbag Control Module in accordance with Service Information Perform AIRBAG VERIFICATION TEST VER 1 With the DRBIII record and erase all from all Airbag modules If eguipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND W
60. INSTRUMENT CLUSTER C1 CONNECTOR NOT AVAILABLE WHITE oa oa Oa Oa oa oa INSTRUMENT CLUSTER C2 BLACK 1 4 INTRUSION SENSOR NO 1 BLACK 1 4 INTRUSION SENSOR NO 2 CAV CIRCUIT FUNCTION 1 20BR FUEL LEVEL SENSOR SIGNAL RETURN 2 20BR DG AMBIENT TEMPERATURE SENSOR SIGNAL RETURN 4 20WT GY 5 20BR BK PARK BRAKE INDICATOR SIGNAL y 20BK DG RIGHT TURN SIGNAL 10 20BL BK FUEL LEVEL SENSOR SIGNAL 11 20BL DG AMBIENT TEMPERATURE SENSOR SIGNAL 14 20DG WT BL ENGINE COOLANT LEVEL SWITCH SIGNAL 15 20BR WT FRONT COURTESY LAMPS CONTROL 16 20YL RD SEAT BELT SWITCH SIGNAL 17 2006 CAN C BUS 18 20DG WT CAN C BUS INSTRUMENT CLUSTER C2 WHITE CAV CIRCUIT FUNCTION 1 2 3 20RD YL FUSED 4 20BR WT BRAKE WEAR SENSOR SIGNAL 5 6 18BR GROUND 7 20GY DG RD LAMP DRIVER 8 20BL WT FUSED HIGH BEAM SWITCH OUTPUT 9 20BL RD WT VEHICLE SPEED SENSOR OUTPUT 10 20BK FUSED IGNITION SWITCH OUTPUT RUN START 11 20BL BK KEY IN IGNITION SWITCH SIGNAL 12 13 20BK WT LEFT TURN SIGNAL 14 20BR YL BRAKE FLUID LEVEL INDICATOR
61. LOCK MOTOR AJAR SWITCH ASSEMBLY REAR 1 264 DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY REAR 2 264 DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY RIGHT SLIDING C1 265 DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY RIGHT SLIDING C2 265 DOSING PUMP 242625 katteks y ane 265 ENGINE CONTROL MODULE C1 EXCEPT BLACK 265 ENGINE CONTROL MODULE C2 EXCEPT OBD BLACK 266 ENGINE CONTROL MODULE C2 267 ENGINE CONTROL MODULE EXCEPT OBD BLACK 268 EVAPORATOR TEMPERATURE 5 5 269 FUEL LEVEL 5 5 22 269 FUSES FUSE BLOCK 1 271 FUSE BLOCK NO Oz ee oe teer et ae ded dolor rci die peine 271 FUSE BLOCK NO TOZ odaga laka vete d Ene bem taa d en 271 FUSE BLOCK NO 1 63 BLACK uei eee Eee usa ete te ce ca e ad 272 FUSE BLOCK BEACK eod t mma eR p Hh ERE Yo 272 FUSE BLOCK 1 5 272 vi 10 0 TABLE OF CONTENTS Continued FUSES FUSE BLOCK 2 2 22 274 FUSES FUSE BLOCK 3 2 2 276 FUSES FUSE RELAY
62. Level Sensor Signal Return circuit for an open Perform BODY VERIFICATION TEST VER 1 GoTo 4 182 INSTRUMENT CLUSTER FUEL LEVEL SENSOR OPEN SHORT TO BATTERY Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the Fuel Pump Module harness connector Disconnect the Instrument Cluster C1 harness connector Measure the resistance of the Fuel Level Sensor Signal circuit between the F uel Pump Module harness connector and the Instrument Cluster harness connector Is the resistance above 10 ohms Yes Repair the Fuel Level Sensor Signal circuit for an open Perform BODY VERIFICATION TEST VER 1 Replace the Instrument Cluster in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 183 INSTRUMENT CLUSTER Symptom FUEL LEVEL SENSOR SHORT TO GROUND POSSIBLE CAUSES FUEL LEVEL SENSOR FUEL LEVEL SENSOR CIRCUITS SHORTED TOGETHER INSTRUMENT CLUSTER FUEL LEVEL SENSOR SIGNAL SHORT TO GROUND ACTION APPLICABILITY Turn the ignition off All Disconnect the Fuel Pump Module harness connector Turn the ignition on with the DRBIII9 read DTCs Does the DRBIII9 display Fuel Level Sensor Shorted to Ground Yes 2 No Replace the Fuel Level Sensor in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Instrument Cluster C1 harness connector Disconnect t
63. Lock Sense Left Sliding Door Unlock Sense Passenger Doors Lock Driver YL BK Rear Door Lock Sense Rear Door Unlock Senso 2 Passenger Doors Unlock Driver Passenger Doors Lock Driver A Passenger Doors Unlock Driver CONTACT CONTACT cC ai c E E r lt di il lid MF 1 sl L DOOR LEFT SLIDING DOOR DOOR RIGHT SLIDING DOOR DOOR REAR DOOR LOCK AJAR LOCK MOTOR AJAR SW AJAR LOCK MOTOR AJAR SW AJAR MOTOR AJAR SW LATCH ASSEMBLY LATCH ASSEMBLY LATCH ASSEMBLY 810df5c4 S o H D R A M 5 297 is vi del B CENTRAL TIMER MODULE He dellei 10 5 3 SWITCH AND MISCELLANEOUS CIRCUITS 10 5 POWER DOOR LOCKS RKE Continued SCHEMATIC DIAGRAMS 810 353 punog da 51004 JeBuesseg esues YOUMS 39077 51000 YAMS 64207 1001 JoAug Jelly NI LM 431410 QU NS A9 D otis 121131 elho MASTER DOORLOCK SWITCH gt lt D RELAY Mamo I J8 u 110484 lt NI E x 2o LL WSS ALO M
64. PERFORM THIS TEST UNLESS DIRECTED HERE BY THE HEATER PRE TEST ALWAYS PERFORM THE HEATER PRE TEST PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE VALID Turn the ignition off Install a substitute relay in place of the Circulation Pump Relay Turn the ignition on Verify that the Cabin Heater is switched off Set the blend control to the max heat position and the mode control to the floor position With the DRBIII erase the Cabin Heater Module s DTCs Start the engine Allow the engine to idle With the DRBIII monitor for Cabin Heater Module DTCs while performing the following step NOTE Do not disconnect the vehicle s battery or the heater s main power supply while the heater is in operation or in run down mode Failure to follow these instructions can result in excess emissions from the heater during heater operation Switch the Cabin Heater necessary allow the heater to run through at least one cycle of operation approximately 10 minutes and then switch the heater off Turn the engine off Does the DRBIII9 display CIRC PUMP CONTROL SHORTED Yes GoTo 2 Replace the original Circulation Pump Relay in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 74 CABIN CIRC PUMP CONTROL SHORTED Continued ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA AII THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALW
65. Perform BODY VERIFICATION TEST VER 1 134 HEATING amp AIR OUTLET TEMP SENSOR HIGH OR OPEN ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All NOTE Check connectors Clean repair as necessary Disconnect the Automatic Temperature Control ATC C1 harness connector Disconnect the Air Outlet Temperature Sensor harness connector Measure the resistance of the Air Outlet Temperature Sensor Signal circuit between the Automatic Temperature Control ATC C1 harness connector and the Air Outlet Temperature Sensor harness connector Is the resistance below 5 0 ohms Yes GoTo 5 Repair the Air Outlet Temperature Sensor Signal circuit for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Automatic Temperature Control ATC C1 harness connector Disconnect the Air Outlet Temperature Sensor harness connector Measure the resistance of the Sensor Ground circuit between the Automatic Temperature Control ATC C1 harness connector and the Air Outlet Temperature Sensor harness connector Is the resistance below 5 0 ohms Yes Replace the Air Outlet Temperature Sensor in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Repair the Sensor Ground circuit for an open Perform BODY VERIFICATION TEST VER 1 135 HEATING amp Symptom AIR OUTLET T
66. SHORTED LOW ACTIVE POSSIBLE CAUSES A C COMPRESSOR CLUTCH A C COMPRESSOR CLUTCH CONTROL CIRCUIT SHORTED TO GROUND A C COMPRESSOR CLUTCH CONTROL CIRCUIT SHORTED TO GROUND CIRCUIT A C COMPRESSOR CLUTCH CONTROL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT AUTOMATIC TEMPERATURE CONTROL ATC ACTION APPLICABILITY Turn the ignition on All Press the Air Conditioning switch off Turn the ignition off Disconnect the A C Compressor Clutch harness connector Turn the ignition on With the DRBIII record and erase Automatic Temperature Control DTCs Turn the ignition off wait 5 seconds then turn the ignition on With the DRBIII read the Automatic Temperature Control DTCs Does the DRBIII9 display COMPRESSOR CONTROL HIGH OR OPEN Yes Replace the A C Compressor Clutch in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the A C Compressor Clutch harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between ground and the A C Compressor Clutch Control circuit Is the resistance below 10k ohms Yes Repair the A C Compressor Clutch Control circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 3 Turn the ignition off Disconnect the A C Compressor Clutch harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector
67. SIGNAL 15 20BL GENERATOR FIELD DRIVER 16 20YL AIRBAG WARNING INDICATOR DRIVER 17 18 20BL VT D RELAY NO 1 CONTROL 18 20BL VT D RELAY NO 1 CONTROL INTRUSION SENSOR NO 1 BLACK CAV CIRCUIT FUNCTION 1 20BR GROUND 2 20DG BK INTRUSION SENSOR 1 SIGNAL 3 20DG YL INTRUSION SENSOR INTERFACE 4 20RD DG FUSED INTRUSION SENSOR NO 2 BLACK CAV CIRCUIT FUNCTION 1 20BR GROUND 2 20GY BK INTRUSION SENSOR 2 SIGNAL 3 20DG YL INTRUSION SENSOR INTERFACE 4 20RD DG FUSED 279 LI R 4 2 CONNECTOR PINOUTS BLACK 1 4 INTRUSION SENSOR NO MASTER DOOR LOCK SWITCH R PANIC ALARM SWITCH E 2 INTRUSION SENSOR NO 3 BLACK CAV CIRCUIT FUNCTION 1 20BR GROUND 2 20DG WT BL INTRUSION SENSOR 3 SIGNAL 20DG YL INTRUSION SENSOR INTERFACE 4 2080 06 FUSED B MASTER DOOR LOCK SWITCH CAV CIRCUIT FUNCTION 1 16GY DG RD LAMP DRIVER 2 16WT DG PASSENGER DOOR AJAR INDICATOR DRIVER 16WT YL M
68. Sensor No 1 connector Measure the resistance of the Ground circuit at the Intrusion Sensor connector Is the resistance below 5 0 ohms Yes Replace the Intrusion Sensor Perform BODY VERIFICATION TEST VER 1 Repair the Ground circuit for an open Perform BODY VERIFICATION TEST VER 1 222 VEHICLE THEFT SECURITY Symptom INTRUSION SENSOR 2 CIRCUIT OPEN SHORT TO GROUND ETTE When Monitored and Set Condition INTRUSION SENSOR 2 CIRCUIT OPEN SHORT TO GROUND When Monitored Whenever the battery voltage is above 10 0 volts and the Security System Module is connected Set Condition The Security System Module detects the incorrect voltage on the Intrusion Sensor drcuit POSSIBLE CAUSES DTC PRESENT FUSE 2 FUSE BLOCK FUSED B WIRE OPEN GROUND CIRCUIT OPEN INTRUSION SENSOR 2 SIGNAL SHORTED INTRUSION SENSOR 2 SIGNAL CIRCUIT OPEN INTRUSION SENSOR INTERFACE WIRE SHORTED INTRUSION SENSOR INTERFACE WIRE OPEN INTRUSION SENSOR ACTION APPLICABILITY With the DRBIII9 record and erase All Remove the ignition key Close and lock all doors and set the Vehicle Theft Security System Wait 1 minute Disarm the Vehicle Theft System With the DRBIII read 5 Does the DRBIII9 display the same DTC Yes GoTo 2 No Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 Check Fuse 2 in
69. Service nformation Perform BODY VERIFICATION TEST VER 1 187 INSTRUMENT CLUSTER Symptom NO CAN COMMUNICATION WITH ABS POSSIBLE CAUSES DTC PRESENT OPEN CAN CIRCUITS AT INSTRUMENT CLUSTER INSTRUMENT CLUSTER CHECK POWERS AND GROUNDS TO THE AFFECTED MODULE OPEN CAN CIRCUITS AT CAB CONTROLLER ANTILOCK BRAKE ACTION APPLICABILITY With the DRBIII9 record and erase Cycle the ignition switch from ON to OFF to With the DRBIII9 read DTC 5 Did this DTC reset Yes GoTo 2 Theconditions that caused this code to set are not present at this time Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 With the DRBIII9 check the TCM ECM and the Shifter Assembly for this same similar ABS message error DTC Is the same or similar DTC set in the other modules Yes GoTo 3 GoTo 5 help isolate an open or shorted condition Repair as necessary Perform BODY VERIFICATION TEST VER 1 GoTo 4 Turn the ignition off to the lock position Disconnect the Controller Antilock Brake harness connector Measure the resistance between the CAN Bus circuit and the CAN Bus circuit in the CAB harness connector Is the resistance 60 ohms 3 0 ohms Yes Replace the Controller Antilock Brake in accordance with the service information Perform BODY VERIFICATION TEST VER 1 No
70. TEST VER 1 Replace the Sentry Key RemotE Entry Module Perform BODY VERIFICATION TEST VER 1 202 POWER DOOR LOCKS RKE Symptom RKE INTERFACE CIRCUIT SHORT TO GROUND SKREEM When Monitored and Set Condition RKE INTERFACE CIRCUIT SHORT TO GROUND SKREEM When Monitored Whenever the battery voltage is above 10 0 volts and the module is connected Set Condition If the SKREEM monitors a resistance below 4000 0 ohms or over 9000 0 ohms for over 30 seconds this code will set POSSIBLE CAUSES DTC PRESENT SENTRY KEY REMOTE ENTRY MODULE SHORTED RKE INTERFACE WIRE SHORTED RKE INTERFACE WIRE OPEN CENTRAL TIMER MODULE FAILURE ACTION APPLICABILITY With the DRBIIIS record and erase All Cycle the ignition switch from ON to OFF to ON With the DRBIII read 5 UsingtheRKE transmitter operate the Door Locks several times while observing the DRBIII Wait 10 seconds Does the DRBIII display RKE INTERFACE CIRCUIT OPEN OR SHORT TO GROUND Yes GoTo 2 No Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Using the RKE transmitter operate the door locks several times and re check for any DTC s Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Sentry Key RemotE Entry Module connector Measure the resistance between ground and the RKE Interface circuit Is the resistance between 5500 0 5 5
71. TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors L ook for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the 2 monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related tothe Driver circuits rotatethe steering wheel from stop to stop You have just attempted to simulate the condition that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning vehicle to customer 50 AIRBAG Symptom PASSENGER SEAT BELT TENSIONER SHORT TO BATTERY ammu When Monitored and Set Condition PASSENGER SEAT BELT TENSIONER SHORT TO BATTERY When Monitored When theignition is theACM monitors the voltage of the Passenger Seat
72. Tool to the Passenger Airbag connector s WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION ON THEN RECONNECT THE BATTERY With the DRBIII9 read the active Airbag Control Module 5 Does the DRBIII9 show PASSENGER SQUIB 1 CIRCUIT OPEN Yes GoTo 3 Replace the Passenger Airbag in accordance with the Service Information Perform AIRBAG VERIFICATION TEST VER 1 WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Load Tool from the Passenger Airbag connector s Disconnect the Airbag Control module connector s NOTE Check connectors Clean and repair as necessary Connect the Load Tool ACM Adaptor to the Airbag Control Module connector s Measure the resistance of the Passenger Squib 1 Line 1 and Line 2 circuit between the ACM Adaptor and the Passenger Airbag connector 15 the resistance below 1 0 ohms on both circuits Yes GoTo 4 Repair open or high resistance in Passenger Squib 1 Line 1 or Line 2 circuits Perform AIRBAG VERIFICATION TEST VER 1 WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair Replace the Airbag Control Module in accordance with Service Instructions Perform AIRBAG
73. VER 1 125 COMMUNICATION Symptom NO RESPONSE FROM TRANSMISSION CONTROL MODULE POSSIBLE CAUSES CHECK POWERS AND GROUNDS TO THE TRANSMISSION CONTROL MODULE RADIO K TCM RADIO CIRCUIT SHORTED TO GROUND RADIO K TCM RADIO CIRCUIT SHORTED TO VOLTAGE K TCM RADIO CIRCUIT OPEN TRANSMISSION CONTROL MODULE ACTION APPLICABILITY Turn the ignition off All Disconnect the Transmission Control Module harness connectors Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located in the service information to help isolate an open or shorted condition Repair as necessary PerformNAG1TRANSMISSION VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the TCM harness connectors Disconnect the DRBIII9 from the DLC Measure the resistance between ground and the K TCM RADIO circuit 15 the resistance below 5 0 ohms Yes 3 No GoTo 4 Turn the ignition off Disconnect the Radio harness connector Measure the resistance between ground and the K TCM RADIO circuit Is the resistance below 5 0 ohms Yes Repair the K TCM RADIO circuit for a short to ground Perform NAG1 TRANSMISSION VERIFICATION TEST VER 1 No Replace the Radio in accordance with the service information Perform 1 TRANSMISSION VERIFICATION TEST VER 1 126 COMMUNICATION NO RESPONSE FROM TRANSMISSION CONTROL MODULE Continued ACT
74. VER 1 Repair the Ground circuit for an open Perform BODY VERIFICATION TEST VER 1 176 HEATING amp Symptom WATER CYCLE VALVE CONTROL SHORTED LOW ACTIVE POSSIBLE CAUSES WATER CYCLE VALVE CONTROL CIRCUIT SHORTED TO GROUND WATER CYCLE VALVE CONTROL CIRCUIT SHORTED TO GROUND CIRCUIT WATER CYCLE VALVE CONTROL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT AUTOMATIC TEMPERATURE CONTROL ATC WATER CYCLE VALVE ACTION APPLICABILITY Turn the ignition off All Disconnect the Water Cycle Valve harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between ground and the Water Cycle Valve Control circuit 15 the resistance below 10k ohms Yes Repair the Water Cycle Valve Control circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the Water Cycle Valve harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the Water Cycle Valve Control drcuit and the Ground circuit in the Automatic Temperature Control C1 harness connector Is the resistance below 10k ohms Yes Repair the Water Cycle Valve Control circuit for a short to the Ground circuit Perform BODY VERIFICATION TEST VER 1 GoTo 3 Turn the ignition off Disconnect the Water Cycle Valve harness connector Disconnect the Automatic Temperature Control ATC
75. VERIFICATION TEST VER 1 57 AIRBAG PASSENGER SQUIB 1 CIRCUIT OPEN Continued ACTION APPLICABILITY With the DRBIII record and erase all DTC s from all Airbag modules All If equipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors L ook for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals Thefollowing additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related tothe Driver circuits rotatethe steering wheel from stop to stop You have just attempted to simulate the condition that initially set the trouble code message Did the D
76. With the DRBIII9 in Automatic Temperature Control ATC select System Tests and select ATC Function Test When the ATC Function Test is complete proceed as follows With the DRBIII read the active DTCs Does the DRBIII9 display AUX FAN RELAY CONTROL SHORTED LOW Yes GoTo 2 Replace the original A C Auxiliary Fan Relay in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Remove the substitute A C Auxiliary Fan Relay from the relay center Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between ground and the A C Auxiliary Fan Relay High Side Control circuit Is the resistance below 10K ohms Yes Repair theA C Auxiliary Fan Relay High Side Control circuit for a short to ground Reinstall the original A C Auxiliary Fan Relay Perform BODY VERIFICATION TEST VER 1 GoTo 3 142 HEATING amp AUX RELAY CONTROL SHORTED LOW ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All Remove the A C Auxiliary Fan Relay from the relay center Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the A C Auxiliary Fan Relay High Side Control circuit and the Ground circuit in the Automatic Temperature Control ATC C1 harness connector Is the resistance below 10K ohms Yes Repair theA C Auxiliary Fan Relay High Side C
77. Ye uname th kumu sana 7 3 3 2 1 SYSTEM DESCRIPTION 7 3 3 2 2 VENTING THE 5 8 3 3 2 3 SYSTEM DIAGNOSTICS 8 34 INSTRUMENT 6 2 2 9 3 5 POWER DOOR 1 9 3 5 1 CENTRAL 1 2 222222 2 9 3 5 2 REMOTE KEYLESS ENTRY 9 353 AUTO DOOR LOCKS pii vana a bond 10 3 5 4 ACCIDENT 10 3 6 VEHICLE THEFT SECURITY SYSTEM 10 3 7 USINGTHEDRBIIIB RR e 11 38 DRBIII ERROR 11 3 9 DRBIII DOES NOT POWER UP BLANK SCREEN 11 3 10 DISPLAY IS NOT VISIBLE 11 DISCLAIMERS SAFETY 6 11 4d DISCLAIMERS 522 reich rtr ee it or n len nca p 11 42 SAFETY 11 4 2 1 TECHNICIAN SAFETY 11 4 2 2 VEHICLE PREPARATION FOR TESTING 12 42 3 SERVICING SUB ASSEMBLIES 12 424 DRBIII SAFETY INFORMA
78. a short to ground Perform BODY VERIFICATION TEST VER 1 No Replace the Module that when disconnected the short was eliminated in accordance with the service information Perform BODY VERIFICATION TEST VER 1 106 COMMUNICATION NO RESPONSE FROM CABIN HEATER MODULE Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the DRBIII from the DLC Disconnect the Cabin Heater Module harness connector Turn the ignition on Using a 12 volt test light connected to ground probe the K IC ATC HBM CHM circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes GoTo 5 GoTo 6 Turn the ignition off Disconnect the Cabin Heater Module harness connector Turn the ignition on Using a 12 volt test light connected to ground probe the K IC ATC HBM CHM circuit While monitoring the test light disconnect each module IC ATC HBM one at a time NOTE The vehicle may not be equipped with all the above modules NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly with all the above modules disconnected Yes Repair the K IC ATC HBM CHM circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 Replace the Module that when disconnected the
79. as necessary Disconnect the Circulation Pump harness connector Measure the resistance between ground and the Ground circuit Is the resistance below 5 0 ohms Yes Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Repair the Ground circuit for an open Perform BODY VERIFICATION TEST VER 1 153 HEATING amp Symptom CIRC PUMP CONTROL SHORTED LOW ACTIVE POSSIBLE CAUSES CIRCULATION PUMP CONTROL CIRCUIT SHORTED TO GROUND CIRCULATION PUMP CONTROL CIRCUIT SHORTED TO GROUND CIRCUIT CIRCULATION PUMP CONTROL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT CIRCULATION PUMP AUTOMATIC TEMPERATURE CONTROL ATC ACTION APPLICABILITY Turn the ignition off All Disconnect the Circulation Pump harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between ground and the Circulation Pump Control circuit Is the resistance below 10k ohms Yes Repair the Circulation Pump Control circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the Circulation Pump harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the Circulation Pump Control circuit and the Ground circuit in the Automatic Temperature Control C1 harness connector 15 the resistance below
80. d Tl8 LANNO GH ND AD uoniub pasna Qu xg e BUU Wayshs Aunoes WATSS JAH T9 LM JMH 1 WONTSS 10 6 VEHICLE THEFT SECURITY SYSTEM FUSE BLOCK NO 3 RD GY Fused B SECURITY SYSTEM MODULE BK GY Fused Optional Equipment Relay Output RD DG Fused B PANIC ALARM SWITCH GY WT Panic Switch Sense Ground 3 7 DRIVER CYLINDER BK C1 11 LOCK SWITCH Driver Cylinder Unlock Sense RD Driver Cylinder Lock Sense HOOD AJAR BR SWITCH BK BL Ground ee Hood Ajar Switch Sense 1 12 TOWING INTRUSION SENSOR ON OFF VT DG SCHEMATIC DIAGRAMS GY DG K CTM SSM TO DLC BK WT Left Turn Signal TO TURN Ri ene nal SIGNAL Signa RELAYS BR YL Front Courtesy Lamps Control TO INSTRUMENT CLUSTER BR WT TO Door Ajar Switch Sense SLIDING AND REAR DOOR JAMB SWITCHES SWITCH Towing Intrusion Si 2 trol Sensor Indicator Driver C2 9 signal 3 C1 9 GR BR RD DG Towing Sensor Switch Sense FROM Fused B C1 17 FUSE BLOCK 3 gt _____ _ 1 SIREN FUSE 2 Intrusion Sensor Switch Sense BR C1 18 BR Ground 2 Ground GY Window Defogger Relay Left Rear Output TO REAR DEFOGGER GRIDS GY Window Defogger Relay R
81. erase all DTC s from all Airbag modules If equipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors L ook for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the 2 monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related tothe Driver circuits rotatethe steering wheel from stop to stop You have just attempted to simulate the condition that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning
82. from the heater during heater operation Switch the Cabin Heater or Heater Booster on If operable allow the heater to run through at least one cycle of operation approximately 10 minutes and then switch the heater off Does the DRBIII9 display any DTCs Yes Ifthe Heater In Lockout Mode DTC is present record and erase DTCs before performing any diagnostic procedures Return tothe symptom list and choose the symptom s Perform HEATER VERIFICATION TEST VER 1 No GoTo 3 70 CABIN Continued ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION RE PAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition on With the DRBIII9 read Automatic Temperature Control DTCs Are any DTCs present Yes Refer to Heating amp A C information for the related symptom s Perform HEATER VERIFICATION TEST VER 1 Allow heater assembly to cool Inspect the fuel line air intake and exhaust and coolant hoses for restrictions obstructions loose clamps leakage etc Repair as necessary Check the harness connectors
83. from the relay center Measure the resistance between the F an Stage 1 Relay High Side Control circuit and the Ground circuit Fan Stage 1 Relay connector terminal 86 and 85 Is the resistance below 10K ohms Yes Repair theFan Stage 1 Relay High Side Control circuit for a short to the Ground circuit Perform HEATER VERIFICATION TEST VER 1 Replace the Cabin Heater Assembly in accordance with the Service nformation Perform HEATER VERIFICATION TEST VER 1 86 CABIN Symptom FLAME DETECT PRIOR TO COMBUST ENT Sc When Monitored and Set Condition FLAME DETECT PRIOR TO COMBUST When Monitored During heater start up Set Condition This DTC will set if the Flame Sensor s resistance is not within the expected parameters POSSIBLE CAUSES HEATER S AIR INTAKE EXHAUST RESTRICTED FLAME SENSOR ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH CAUTION DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY THE HEATER PRE TEST ALWAYS PERFORM THE HEATER PRE TEST PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE V
84. harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the Recirculated Air Solenoid Valve Control circuit and the Sensor Ground circuit in the Automatic Temperature Control C1 harness connector 15 the resistance below 10k ohms Yes Repair the Recirculated Air Solenoid Valve Control circuit for a short to the Sensor Ground circuit Perform BODY VERIFICATION TEST VER 1 GoTo 4 169 HEATING amp RECIRC AIR SOLENOID CONTROL SHORTED LOW ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All NOTE Check connectors Clean repair as necessary Reconnect the Automatic Temperature Control ATC C1 harness connector Disconnect the Recirculated Air Solenoid Valve harness connector Turn the ignition on Press the Air Recirculation switch off Turn the ignition off Connect a 12 volt test light between the Recirculated Air Solenoid Valve Control circuit and the Ground circuit in the Recirculated Air Solenoid harness connector Turn the ignition on The test light should operate as follows With the Air Recirculation switch off the test light should not illuminate Press the Air Recirculation switch on The test light should illuminate brightly Does the test light function as specified Yes Replace the Recirculated Air Solenoid Valve in accordance with the Service I nformation Perform BODY VERIFICATION TEST VER 1 Repla
85. harness connector Is the resistance 60 ohms 3 0 ohms Yes Replace the in accordance with the service information Perform BODY VERIFICATION TEST VER 1 No Repair theCAN C Bus or the CAN C Bus circuit for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off All Disconnect the TCM harness connector Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located in the service information to 192 INSTRUMENT CLUSTER NO CAN COMMUNICATION WITH TCM Continued ACTION APPLICABILITY Turn the ignition off to the lock position AII Disconnect the Instrument Cluster C1 harness connector Measure the resistance between the Bus circuit and the CAN Bus circuit in the Instrument Cluster harness connector Is the resistance 60 ohms 3 0 ohms Yes Replace the Instrument Cluster in accordance with the service information Perform BODY VERIFICATION TEST VER 1 Repair the CAN Bus or the C Bus circuit for an open Perform BODY VERIFICATION TEST VER 1 193 INSTRUMENT CLUSTER Symptom PREGLOW INDICATOR LAMP FAILURE POSSIBLE CAUSES INSTRUMENT CLUSTER ACTION APPLICABILITY NOTE The Instrument Cluster performs internal tests on the indicators All during each ignition cycle With the DRBIII erase DTCs Turn the ignition off wait 10 seconds then turn the ignition on W
86. harness connector cavity B 8 for an open short to ground or short to voltage If ok Replace the Rain Sensor Module Turn the ignition off Disconnect the wiper motor harness connector Connect a voltmeter between ground and the wiper motor harness connector cavity 5 harness side Move the wiper switch to the OFF position Turn the ignition on NOTE The voltmeter should display above 10 0 volts for approximately 20 seconds then switch to 0 0 volts Does the voltmeter display above 10 0 volts then switch to 0 0 volts after 20 seconds Yes GoTo 15 Repair circuit between Wiper Motor harness connector cavity 5 and Rain Sensor Module harness connector cavity B 8 for an open short to ground or short to voltage If ok Replace the Rain Sensor Module 242 WINDSHIELD WIPER 8 WASHER CHECKING THE RAIN SENSOR WIPER OPERATION Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the wiper motor harness connector Connect a voltmeter between ground and the wiper motor harness connector cavity 6 harness side Turn the ignition on While observing the voltmeter move the wiper switch to the OFF INTERMITTENT and LOW positions Does the voltmeter display below 1 0 volt for each of the wiper switch positions Yes GoTo 16 Repair circuit between Wiper Motor harness connector cavity 6 and Rain Sensor Module harness connector cavity A 8 for an open short to ground or short to vo
87. harness connectors Disconnect the DRBIII9 from the DLC Measure the resistance between ground and the K CTM SSM circuit 15 the resistance below 5 0 ohms Yes GoTo 3 GoTo 4 Turn the ignition off Disconnect the Central Timer Module harness connector Measure the resistance between ground and the K CTM SSM circuit 15 the resistance below 5 0 ohms Yes Repair the K CTM SSM circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 Central Timer Module in accordance with the service information Perform BODY VERIFICATION TEST VER 1 120 COMMUNICATION NO RESPONSE FROM SECURITY SYSTEM MODULE Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the DRBIII from the DLC Disconnect the SSM harness connectors Turn the ignition on Using a 12 volt test light connected to ground probe the K CTM SSM circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes GoTo 5 GoTo 6 Turn the ignition off Disconnect the Central Timer Module harness connectors Turn the ignition on Using 12 volt test light connected to ground probe the K CTM SSM circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly
88. if the heater s control unit detects abnormally high voltage on the Dosing Pump control circuit POSSIBLE CAUSES DOSING PUMP CONTROL CIRCUIT SHORTED HIGH DOSING PUMP DOSING PUMP CONTROL CIRCUIT OPEN GROUND CIRCUIT OPEN CABIN HEATER OR HEATER BOOSTER CONTROL UNIT ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH CAUTION DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY THE HEATER PRE TEST ALWAYS PERFORM THE HEATER PRE TEST PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE VALID Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Cabin Heater or Heater Booster harness connector Turn the ignition on Measure the voltage between the Dosing Pump Control circuit and ground Is the voltage above 0 2 volts Yes Repair the Dosing Pump Control circuit for a short to voltage Perform HEATER VERIFICATION TEST VER 1 GoTo 2 78 CABIN DOSING PUMP OPEN Continued ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAV
89. ignition off Disconnect the SENTRY KEY REMOTE ENTRY MODULE connector Measure the resistance between ground and the Security System Interface circuit Is the resistance between 5200 0 5 2K and 6800 0 6 8K ohms Yes Replace the Sentry Key Remote Entry Module Perform BODY VERIFICATION TEST VER 1 GoTo 3 233 VEHICLE THEFT SECURITY SECURITY SYSTEM INTERFACE FAILURE SSM Continued ACTION APPLICABILITY Disconnect the Sentry Key Remote Entry Module connector All Disconnect the Security System Module C2 connector Measure the resistance between ground and the Security System Interface circuit 15 the resistance below 20000 0 ohms Yes Repair the Security System Interface circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 No GoTo 4 Disconnect the Sentry Key Remoter Entry connector Disconnect the Security System Module C2 connector Measuretheresistance of the Security System circuit between the SSM C2 connector and the connector Is the resistance below 5 0 ohms Yes Replace the Security System Module Perform BODY VERIFICATION TEST VER 1 Repair the Security System Interface circuit for an open Perform BODY VERIFICATION TEST VER 1 234 VEHICLE THEFT SECURITY Symptom SIREN CIRCUIT OPEN SHORTED TO GROUND When Monitored and Set Condition SIREN CIRCUIT OPEN SHORTED TO GROUND When Monitored Whenever the battery voltage
90. ignition on Set Condition This DTC will set if the Automatic Temperature Control ATC fails to receive all messages from the Instrument Cluster POSSIBLE CAUSES CAN C BUS CIRCUIT S SHORTED OR OPEN INSTRUMENT CLUSTER DTC S PRESENT INSTRUMENT CLUSTER S POWER GROUND CIRCUIT S SHORTED OR OPEN INSTRUMENT CLUSTER BUS C BUS CIRCUIT S OPEN TO INSTRUMENT CLUSTER AUTOMATIC TEMPERATURE CONTROL ATC CAN BUS C BUS CIRCUIT S OPEN TO AUTOMATIC TEMPERATURE CONTROL ACTION APPLICABILITY Turn the ignition on All With the DRBIII9 read Automatic Temperature Control DTCs Does the DRBIII9 display NO COMMUNICATION BUS Yes Refer to the Communication category for the related symptom Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition on With the DRBIII read Instrument Cluster DTCs Does the DRBIII9 display any DTCs Yes Refer tolnstrument Cluster category for the related symptom s Perform BODY VERIFICATION TEST VER 1 No GoTo 3 Turn the ignition on With the DRBIII check the TCM and ABS module for the same or similar No Communication with Instrument Cluster DTC Does the DRBIII9 display same or similar DTC in TCM amp ABS module Yes GoTo 4 GoTo 6 165 HEATING amp NO COMMUNICATION WITH 1 ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the Instrument Cluster harness connect
91. must be disconnected 65 AIRBAG PASSENGER SQUIB 1 SHORT TO GROUND Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI All TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Passenger Airbag connector s NOTE Check connectors Clean and repair as necessary WARNING DO NOT PLACE AN INTACT UNDEPLOYED AIRBAG FACE DOWN ON AHARD SURFACE THE AIRBAG WILL PROPEL INTO THE AIR IF ACCIDENTALLY DEPLOYED AND COULD RESULT IN SERIOUS OR FATAL INJ URY Connect the appropriate Load Tool to the Passenger Airbag connector s WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 read the active Airbag Control Module Does the DRBIII9 show PASSENGER SQUIB 1 SHORT TO GROUND Yes GoTo 3 Replace the Passenger Airbag in accordance with the Service Information Perform AIRBAG VERIFICATION TEST VER 1 WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Load Tool from the Passenger Airbag connector s Disconnect the Airbag Control Module connector s NOTE Check connectors Clean repair as necessary Connect the appropriate Load Tool Adaptor to the Airbag Control Module connector Measure the resistance of the Passenger Squib 1 Line 1 or Line 2 circuit between the Passenger A
92. of the key in the driver door If the key is used it must be held in the lock position for 2 seconds When the system is first activated the hazard lamps will flash 3 times Also with the system armed the Towing l ntrusion Sen sor On Off Switch indicator will flash to indicate an armed system To disarm the system use the RKE or the driver door lock cylinder Unlocking and opening one of the other doors with the system armed will trip the vehide theft security system Interior monitoring is done by the use of an Intrusion Sensor located in the front headliner and with one or two sensors in the ceiling of the cargo area depending on how the vehicle is equipped Monitoring of the interior of the vehide will begin after the system has been armed for 30 seconds The on off switch located on the instrument panel can be used toturn off this feature with theignition switch in either the Locked Off or ACC position The vehi de tow monitoring feature can also be switched off using this switch Re locking the vehicle a second time will reactivate these features If a trailer is connected to the vehide when the system is armed the SSM will sense a resistance change on the turn signal circuits if the trailer harness becomes disconnected and will trip the alarm Tripping the vehide theft security system will cause the hazard lamps to flash and the siren to sound at 30 second intervals The siren is equipped with it s own self contained battery
93. read DTC s Lock and unlock the doors from the Driver Cylinder Lock Switch several times while observing the DRBIII9 Wait 10 seconds Does the display DRIVER CYLINDER UNLOCK SWITCH CIRCUIT SHORT TO GROUND Yes 2 No Theconditions that caused this code to set are not present at this time Usingthe wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Driver Cylinder Lock Switch connector Measure the resistance between ground and the Driver Cylinder Unlock Sense circuit Is the resistance below 400 0 ohms Replace the Driver Cylinder Lock Switch Perform BODY VERIFICATION TEST VER 1 Yes GoTo 3 214 VEHICLE THEFT SECURITY DRIVER CYLINDER UNLOCK SWITCH CIRCUIT SHORT TO GROUND Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the Driver Cylinder Lock Switch connector Disconnect the Security System Module Measure the resistance between ground and the Driver Cylinder Unlock Sense circuit Is the resistance below 400 0 ohms Yes Repair the Driver Cylinder Unlock Sense circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 Replace the Security System Module Perform BODY VERIFICATION TEST VER 1 215 VEHICLE THEFT SECURITY Symptom FRONT DOOR J AMB SWITCH CIRCUIT SHORT TO GROUND When
94. short was eliminated in accordance with the service information Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Cabin Heater Module harness connector Disconnect the DRBIII9 from the DLC Measure the resistance of the ATC HBM CHM circuit between the CHM connector and the DLC 15 the resistance below 5 0 ohms Yes Replacethe Cabin Heater Module in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Repair the K IC ATC HBM CHM circuit for an open Perform BODY VERIFICATION TEST VER 1 107 COMMUNICATION Symptom NO RESPONSE FROM CENTRAL TIMER MODULE POSSIBLE CAUSES CHECK POWERS AND GROUNDS TO THE CENTRAL TIMER MODULE SECURITY SYSTEM MODULE K CTM SSM CIRCUIT SHORTED TO GROUND SECURITY SYSTEM MODULE K CTM SSM CIRCUIT SHORTED TO VOLTAGE K CTM SSM CIRCUIT OPEN CENTRAL TIMER MODULE ACTION APPLICABILITY Turn the ignition off All Disconnect the Central Timer Module harness connectors Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located in the service information to help isolate an open or shorted condition Repair as necessary Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the CTM harness connectors Disconnect the DRBIII9 from the DLC Measure the resistance between ground and the K CTM SSM circuit 15 the resistance bel
95. the event the vehicle s battery power is disconnected the siren will continue to sound on it s own 3 7 USING THE DRBIII Refer to the DRBIII9 user guide for instructions and assistance with reading trouble codes erasing trouble codes and other DRBIII9 functions 3 8 DRBIII ERROR MESSAGES Under normal operation the DRBIII will dis play one of only two error messages user requested WARM Boot or User Requested COLD Boot If the DRBIII should display any other error message record the entire display and call the STAR Center This is a sample of such an error message display ver 2 14 date 26 J ul93 file key_iff cc date ul26 1993 line 548 err Oxi User Requested COLD Boot Press MORE to switch between this display and the application screen Press F4 when done noting information 3 9 DRBIII DOES NOT POWER UP BLANK SCREEN If the LED s donot light or no sound is emitted at start up check for loose cable connections or a bad cable Check the vehicle battery voltage data link connector cavity 16 A minimum of 11 volts is required to adequately power the DRBIII9 Check for proper grounds at DLC cavities 4 and 5 If all connections are proper between the DRBIII9 and the vehicle or other devices and the vehicle battery is fully charged an inoperative DRBIII may be the result or a faulty cable or vehicle wiring 3 10 DISPLAY IS NOT VISIBLE Low temperatures will affect the
96. the ignition on With the DRBIII record and erase ATC DTC Start the engine Allow the engine to reach normal operating temperature Set the blower to high speed Press the Air Conditioning switch On With the DRBIIIS verify that the ambient temperature is above 59 F 15 C the refrigerant pressure is between 29 and 348 PSI 2 and 24 bar the evaporator temperature is above 36 5 F 2 5 C and the coolant temperature is above 158 F 70 C With the DRBIII9 in Automatic Temperature Control ATC select System Tests and select ATC Function Test When the ATC Function Test is complete proceed as follows With the DRBIII read the active ATC DTCs Does the DRBIII9 display BLOWER STAGE ONE SHORTED LOW Yes GoTo 2 No Refer tothe wiring diagrams located in the service information to help isolate a possible intermittent short to ground condition Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Blower Motor harness connector Connect a fused jumper wire between Battery and Blower Motor cavity 1 Connect a jumper wire between ground and Blower Motor cavity 2 Does the Blower Motor run at full speed Yes 3 Replace the Blower Motor in accordance with the Service Infor mation Remove and inspect the Blower Motor Fuse and replace it if necessary Perform BODY VERIFICATION TEST VER 1 146 HEATING amp BLOWER STAGE 1 SHORTED LOW ACTIVE
97. visibility of the display Adjust the contrast to compensate for this condition GENERAL INFORMATION DRB DISPLAY REPLACEABLE LENS FUNCTION ENTER KEYS LEDs A CONTRAST with YES key SOS BACK LIGHTING with YES key KEYPAD SHIFT KEY LED 80057566 4 0 DISCLAIMERS SAFETY WARNINGS 4 1 DISCLAIMERS All information illustrations and specifications contained in this manual are based on the latest information available at the time of publication The right is reserved to make changes at any time without notice 4 2 SAFETY 4 2 1 TECHNICIAN SAFETY INFORMATION WARNING WHEN OPERATING ENGINES PRODUCE AN ODORLESS GAS CALLED CARBON MONOXIDE INHALING CARBON MONOXIDE GAS CAN RESULT IN SLOWER REACTION TIMES AND CAN LEAD TO PERSONAL INJURY OR DEATH WHEN THE ENGINE IS OPERATING KEEP SERVICE AREAS WELL VENTILATED OR ATTACH THE VEHICLE EXHAUST SYSTEM TO THE SHOP EXHAUST REMOVAL SYSTEM Set the parking brake and block the wheel before testing or repairing the vehicle It is especially important to block the wheels on front wheel drive vehicles the parking brake does not hold drive wheels When servicing a vehicle always wear eye pro tection and remove any metal jewelry such as rings watchbands or bracelets that might make an inadvertent electrical contact When diagnosing a body system problem it is important to follow approved procedures where applicable These procedures can be found i
98. voltmeter to the vehide s battery Position the voltmeter where it can be monitored while operating the DRBIII9 Turn the ignition on Set the blend control to the max heat position and the mode control to the floor position Start the engine Allow the engine to idle NOTE Do not disconnect the vehicle s battery or the heater s main power supply while the heater is in operation or in run down mode Failure to follow these instructions can result in excess emissions from the heater during heater operation Switch the Cabin Heater or Heater Booster on If necessary allow the heater to run through at least one cycle of operation approximately 10 minutes and then turn the heater off With the DRBIII9 in Sensors monitor the voltmeter and the Cabin Heater s or Heater Booster s Operating Voltage while the heater is operational Switch the heater off Turn the engine off Was there more than 1 5 volts difference between Operating amp battery voltage Yes Repair the high resistance in the Fused circuit Perform HEATER VERIFICATION TEST VER 1 No Replace the Cabin Heater Assembly or Heater Booster Assembly in accordance with the Service I nformation Perform HEATER VERIFICATION TEST VER 1 101 COMMUNICATION Symptom NO RESPONSE FROM AIRBAG CONTROL MODULE POSSIBLE CAUSES CHECK POWERS AND GROUNDS TO THE AIRBAG CONTROL MODULE K ACM CIRCUIT SHORTED TO GROUND K ACM CIRCUIT SHORTED TO VOLTAGE K ACM CIRCUIT OP
99. winter grade fuel and replace as necessary Check for obstructions in the heater s fuel line Refer to Fuel Line Cleaning in the Service Information Is the heater s fuel line Ok Yes GoTo 3 Repair the heater s fuel line as necessary in accordance with the Service I nformation Perform HEATER VERIFICATION TEST VER 1 89 CABIN OUT Continued ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION RE PAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off Disconnect the fuel line from the fuel outlet side of the Dosing Pump Using a suitable length of fuel line connect one end to the fuel outlet side of the Dosing Pump and place the other end in a suitable container Turn the ignition on CAUTION For the result of this test to be valid the vehicle s battery must be fully charged CAUTION For the result of the Dosing Pump OUTPUT test to be valid actuate Dosing Pump PRIME if the heater s fuel supply line was drained amp then not primed Remove any fuel in the container before performing the Dosing Pump OUTPUT test If t
100. 1 Replace the Shifter Assembly in accordance with the service information Perform ABS VERIFICATION TEST VER 1 Turn the ignition off Disconnect the CAB harness connector Disconnect the DRBIII9 from the DLC Measure the resistance of the K ABS Shifter Assembly circuit between the CAB connector and the DLC 15 the resistance below 5 0 ohms Yes Replace the Controller Antilock Brake in accordance with the Service Information Perform ABS VERIFICATION TEST VER 1 Repair the K ABS Shifter Assembly circuit for an open Perform ABS VERIFICATION TEST VER 1 111 COMMUNICATION Symptom NO RESPONSE FROM ENGINE CONTROL MODULE POSSIBLE CAUSES CHECK POWERS AND GROUNDS TO THE ENGINE CONTROL MODULE K ECM CIRCUIT SHORTED TO GROUND K ECM CIRCUIT SHORTED TO VOLTAGE K ECM CIRCUIT OPEN ENGINE CONTROL MODULE ACTION APPLICABILITY Turn the ignition off All Disconnect the Engine Control Module harness connectors Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located the service information to help isolate an open or shorted condition Repair as necessary Perform ROAD TEST VERIFICATION VER 2 GoTo 2 Turn the ignition off Disconnect the ECM harness connectors Disconnect the DRBIII9 from the DLC Measure the resistance between ground and the K ECM circuit Is the resistance below 5 0 ohms Yes Repair the K ECM c
101. 1 42 18VT DG STARTER MOTOR RELAY CONTROL 44 45 46 18YL BL ENGINE CONTROL RELAY CONTROL 47 48 20WT BOOST PRESSURE SOLENOID CONTROL 49 50 51 52 268 EVAPORATOR TEMPERATURE SENSOR CONNECTOR PINOUTS EVAPORATOR TEMPERATURE SENSOR CONNECTOR NOT AVAILABLE CAV CIRCUIT FUNCTION 1 18BR DG EVAPORATOR TEMPERATURE SENSOR SIGNAL 2 18BR BL SENSOR GROUND FUEL LEVEL SENSOR CAV CIRCUIT FUNCTION 2 20BL BK FUEL LEVEL SENSOR SIGNAL 3 20BR FUEL LEVEL SENSOR SIGNAL RETURN 269 LI R 4 2 15 CONNECTOR PINOUTS FUSE BLOCK 1 FUSE 1 FUSE 10 10A 10A FUSE2 FUSE 11 10A 10A FUSE3 FUSE 12 10A 10A FUSE 4 FUSE 13 10A 10A FUSE 5 FUSE 14 10A 15A FUSE 6 FUSE 15 C 20A 10A 0 N FUSE7 FUSE 16 N 15A 25A E C FUSE 8 FUSE 17 T 20A 15A 0 R FUSE 9 FUSE 18 15A 15A P FUSE 21 FUSE 19 N 30A 15A U FUSE 20 T 15A S t 4 ENGINE WIPER TURN CONTROL ON OFF SIGNAL RELAY RELAY RELAY NOTE THE FUSE AND RELAY LOCATIONS SHOWN HERE MAY VARY FROM VEHICLE TO VEHICLE 270 FUSES FUSE BLOCK 1 CONNECTOR PINOUTS
102. 1 0 2 0 3 0 4 0 TABLE OF CONTENTS INTRODUCTION EPUM CS EE E ES 1 11 SYSTEM COVERAGE 1 1 2 SIX STEP TROUBLESHOOTING PROCEDURE 1 IDENTIFICATION OF SYSTEM 1 SYSTEM DESCRIPTION AND FUNCTIONAL OPERATION 1 ad AIRBAG SYSTEMS ugs sca 1 314 DRIVER 2 312 GLOCKSPRING tee 3 31 3 PASSENGER AIRBAG 3 31 4 SEAT BELT 6 3 3 1 5 SPECIAL TOOLS eric P 3 3 1 6 DIAGNOSTIC TROUBLE CODES 4 3 1 6 1 ACTIVE CODES 4 3 1 6 2 STORED CODES oe ERR Des exe ka don es 4 8 2 COMMUNICATION Lu sie maat e EXE ERE OC vate RP Pn 4 3 2 1 COMMUNICATION K LINES 4 322 5 5 3 3 HEATING amp SYSTEM 5 3 3 1 AUTOMATIC TEMPERATURE CONTROL 5 334 SYSTEM CONTROLS ete id perds 5 3 3 1 2 SYSTEM DIAGNOSTICS 5 3 3 2 CABIN HEATER MODULE CHM amp HEATER BOOSTER MODULE HEM
103. 1 connector 15 the resistance below 5 0 ohms Yes Replace the Intrusion Sensor Perform BODY VERIFICATION TEST VER 1 Repair the Intrusion Sensor Interface circuit for an open Perform BODY VERIFICATION TEST VER 1 Disconnect the Intrusion Sensor No 1 connector All Disconnect the Security System Module C2 connector Measure the resistance of the Intrusion Sensor 1 Signal circuit between the SSM C2 connector and the Intrusion Sensor No 1 connector Is the resistance below 5 0 ohms 221 VEHICLE THEFT SECURITY Symptom INTRUSION SENSOR 1 GROUND CIRCUIT OPEN When Monitored and Set Condition INTRUSION SENSOR 1 GROUND CIRCUIT OPEN When Monitored Whenever the battery voltage is above 10 0 volts and the Security System M odule is connected Set Condition The Security System Module detects the incorrect voltage on the Intrusion Sensor circuit POSSIBLE CAUSES DTC PRESENT GROUND CIRCUIT OPEN INTRUSION SENSOR ACTION APPLICABILITY With the DRBIII record and erase All Remove the ignition key Close and lock all doors and set the Vehide Theft Security System Wait 1 minute Disarm the Vehicle Theft System With the DRBIII9 read Does the DRBIII9 display the same DTC Yes GoTo 2 Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 Disconnect the I ntrusion
104. 17 18 16RD YL FUSED 19 16RD DG VT FUSED D RELAY NO 1 OUTPUT 20 16BK BL WT OPTIONAL EQUIPMENT RELAY OUTPUT 276 CONNECTOR PINOUTS FUSE RELAY BLOCK LI R FUSE 10 30 4 2 STARTER MOTOR RELAY NOTE THE FUSE AND RELAY LOCATIONS SHOWN HERE MAY VARY FROM VEHICLE TO VEHIGLE 277 CONNECTOR PINOUTS FUSES FUSE RELAY BLOCK FUSE AMPS FUSED CIRCUIT FUNCTION NO 1 30A 14BL YL FUSED 2 3 4 5 10A 16RD YL FUSED 6 7 5 18BK RD FUSED OPTIONAL EQUIPMENT RELAY OUTPUT 7 25A 14RD FUSED B 8 40A 12RD FUSED B 9 40A 12RD FUSED B 10 30A 12RD GY FUSED B BLACK 2 mire HOOD AJAR SWITCH BLACK O CAV CIRCUIT FUNCTION 1 16BK BL HOOD AJAR SWITCH SENSE 2 3 16 GROUND N SWITCH R P CONNECTOR HORN VTSS CAV CIRCUIT FUNCTION N NOT AVAILABLE 1 16BK BR HORN RELAY OUTPUT U 2 16BK YL FUSED IGNITION SWITCH OUTPUT RUN START 5 IGNITION LOCK SWITCH BLACK CAV CIRCUIT FUNCTION IGNITION 1 20BR GROUND LOCK 2 20BL BK KEY IN IGNITION SWITCH SIGNAL SWITCH 278 CONNECTOR PINOUTS
105. 2 connector and the CTM C1 connector 15 the resistance below 5 0 ohms Yes Replace the Central Timer Module Perform BODY VERIFICATION TEST VER 1 Repair the Interface circuit for an open Perform BODY VERIFICATION TEST VER 1 232 VEHICLE THEFT SECURITY Symptom SECURITY SYSTEM INTERFACE FAILURE SSM When Monitored and Set Condition SECURITY SYSTEM INTERFACE FAILURE SSM When Monitored Whenever the battery voltage is above 10 0 volts and the Security System Module is connected Set Condition Ifthe Security System Module senses a poor or no connection to the Sentry Key Remote Entry Module this code will set POSSIBLE CAUSES DTC PRESENT SENTRY KEY REMOTE MODULE MODULE SHORTED SECURITY SYSTEM INTERFACE WIRE SHORTED SECURITY SYSTEM INTERFACE WIRE OPEN SECURITY SYSTEM MODULE FAILURE ACTION APPLICABILITY With the DRBIIIS record and erase All Cycle the ignition switch from ON to OFF to With the DRBIII read 5 UsingtheRKE transmitter operate the Door Locks several times while observing the DRBIII Wait 10 seconds Does the DRBIII9 display SECURITY SYSTEM INTERFACE CIRCUIT FAILURE Yes GoTo 2 No Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Using the RKE transmitter operate the door locks several times and re check for any DTC s Perform BODY VERIFICATION TEST VER 1 Turn the
106. 30 40 50 60 70 80 5 C 81115178 11 2 AIR OUTLET TEMP SENSOR RESISTANCE TO TEMPERATURE SPECIFICATIONS 0 30 20 10 0 10 20 30 40 50 60 70 80 8 C 81115183 301 CHARTS AND GRAPHS 11 3 WIPER SWITCH WASHER SWITCH VOLTAGE SIGNALS WIPER SWITCH WASHER SWITCH POSITION RAIN SENSOR MODULE HARNESS CAVITY OFF INTERMITTENT LOW HIGH WASHER SW H A R T 5 R A H 5 ON gt 10 0v NOTE THE BATTERY MUST BE FULLY CHARGED FOR THE RESULTS OF THIS TEST TO BE VALID 8131449 302 DIAGNOSTIC TEST PROCEDURES TELL US DaimlerChrysler Corporation is constantly working to provide the technician the best diagnostic manuals possible Your comments and recommendations regarding the diagnostic manuals and procedures are appreciated To best understand your suggestion please complete the form giving us as much detail as possible Model BodyType 9 Engine Transmission Vehicle Mileage A Diagnostic Procedure Comments recommendations if necessary draw sketch Name Submitted by Address City State Zip Business Phone comments become property of DaimlerChrysler Corporation and may be used without compensation FOLD HERE NO POSTAGE NECESSARY IF MAILED BUSINESS REPLY
107. 4 16RD GY FUSED B 2 10 16RD FUSED B 15A 16RD FUSED B 4 75A 16RD YL FUSED B 4 5 25 14RD WT FUSED B 4 6 75 18RD YL FUSED B 4 7 25 16BK YL OPTIONAL EQUIPMENT RELAY OUTPUT 8 104 16BK RD OPTIONAL EQUIPMENT RELAY OUTPUT 9 154 16RD YL WT FUSED D RELAY NO 1 OUTPUT 10 7 5A 16RD YL WT FUSED RELAY NO 1 OUTPUT 11 7 54 16RD YL WT FUSED D RELAY NO 1 OUTPUT 12 25A 14RD FUSED B 4 13 15A 14RD FUSED B 4 14 10A 14RD FUSED B 4 15 25A 16BK YL DG OPTIONAL EQUIPMENT RELAY OUTPUT o R E 2 274 CONNECTOR PINOUTS FUSE BLOCK 3 LI R NOTE THE FUSE LOGATIONS SHOWN HERE MAY VARY FROM VEHIGLE TO VEHIGLE 275 R 4 2 CONNECTOR PINOUTS FUSES FUSE BLOCK NO 3 CAV CIRCUIT FUNCTION 1 16RD FUSED B 2 16RD DG FUSED B 3 12RD DG FUSED B 4 14RD FUSED B 5 16RD FUSED B 6 14RD FUSED B 7 16BK OPTIONAL EQUIPMENT RELAY OUTPUT 8 12RD WT FUSED B 9 16RD BK WT FUSED B 10 16RD GY FUSED B 11 14RD FUSED B 12 16BK RD OPTIONAL EQUIPMENT RELAY OUTPUT 13 18BK BL OPTIONAL EQUIPMENT RELAY OUTPUT 14 16BK GY OPTIONAL EQUIPMENT RELAY OUTPUT 15 16VT YL OPTIONAL EQUIPMENT RELAY OUTPUT 16
108. 5 1488 GROUND 6 14RD FUSED B 7 8 20BK DG SENSOR SIGNAL 9 20YUWT SENSOR SIGNAL 10 20YL RD SENSOR SIGNAL 11 18BL BK K ABS SHIFTER ASSEMBLY 12 18BK LEFT FRONT WHEEL SPEED SENSOR 13 14 20WT LEFT REAR WHEEL SPEED SENSOR N 15 18BR RIGHT FRONT WHEEL SPEED SENSOR E 16 18BK RIGHT FRONT WHEEL SPEED SENSOR C 17 18 19 R 20 20WT BRAKE SWITCH OUTPUT 21 2088 GROUND 22 1 23 T8BK RD FUSED OPTIONAL EQUIPMENT RELAY OUTPUT vn u 24 20DG WT CAN C BUS 4 o lt 25 20BR SENSOR GROUND 26 20WT GY BRAKE PRESSURE SENSOR SIGNAL T 27 18BK BL TCS SWITCH ASR SENSE DE 28 18BR LEFT FRONT WHEEL SPEED SENSOR SERRE 29 2088 LEFT REAR WHEEL SPEED SENSOR 30 20BR RIGHT REAR WHEEL SPEED SENSOR 31 20YL RIGHT REAR WHEEL SPEED SENSOR 32 18BK RD BRAKE LAMP SWITCH OUTPUT 33 34 35 36 37 38 39 20RD BL POWER INPUT 40 20DG CAN C BUS 41 20DG YL SENSOR SIGNAL 42 20WT RD 5 VOLT SUPPLY 262 cuc Jas CYLINDER LOCK SWITCH DRIVER BLACK 50000000 LINK CONNECTOR CONNECTOR PINOUTS CYLINDER LOCK SWITCH DRIVER CONNECTOR NOT AVAILABLE CONNECTOR NOT AVAILABLE CONNECTOR NOT AVAILABLE CAV CIR
109. 5 0 ohms Yes Replace the Heater Booster Module in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Repair the HBM CHM circuit for an open Perform BODY VERIFICATION TEST VER 1 115 COMMUNICATION Symptom NO RESPONSE FROM INSTRUMENT CLUSTER POSSIBLE CAUSES CHECK POWERS AND GROUNDS TO THE INSTRUMENT CLUSTER MODULE INTERNAL SHORT TO GROUND K IC ATC HBM CHM CIRCUIT SHORTED TO GROUND MODULE INTERNAL SHORT TO VOLTAGE ATC HBM CHM CIRCUIT SHORTED TO VOLTAGE K IC ATC HBM CHM CIRCUIT OPEN INSTRUMENT CLUSTER ACTION APPLICABILITY Turn the ignition off All Disconnect the Instrument Cluster harness connectors Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located in the service information to help isolate an open or shorted condition Repair as necessary Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the Instrument Cluster harness connectors Disconnect the DRBIII9 from the DLC Measure the resistance between ground and the K IC ATC HBM CHM circuit 15 the resistance below 5 0 ohms Yes GoTo 3 GoTo 4 Turn the ignition off Disconnect the Instrument Cluster harness connectors Measure the resistance between ground and the K IC ATC HBM CHM circuit While monitoring the ohmmeter disconnect each module
110. 6 7 16BK YL FUSED IGNITION SWITCH OUTPUT RUN START 8 16BK YL WT FOG LAMP RELAY SIGNAL 9 10 16WT FUSED HIGH BEAM SWITCH OUTPUT 11 16RD YL FUSED IGNITION SWITCH OUTPUT RUN START 12 16BR BK WIPER MOTOR CONTROL 13 14 16WT BL RD FUSED IGNITION SWITCH OUTPUT RUN START 15 FUSE BLOCK NO 1 C5 BLACK CAV CIRCUIT FUNCTION 1 16BK BL WT FUSED IGNITION SWITCH RUN START 2 12BK BL FUSED ENGINE CONTROL RELAY OUTPUT 3 18YL FUSED HEADLAMP SWITCH OUTPUT 4 16GY BK LEFT LAMP RELAY OUTPUT 5 16BK DG RIGHT TURN SIGNAL 6 16GY RD RIGHT LAMP RELAY OUTPUT 7 16GY DG LAMP DRIVER 8 16BK WT LEFT TURN SIGNAL 9 10 11 12 13 16VL FUSED HEADLAMP SWITCH OUTPUT 14 16BK VT RD WASHER ON OFF SWITCH OUTPUT 15 18YL BL ENGINE CONTROL RELAY SIGNAL 272 CONNECTOR PINOUTS FUSE BLOCK NO 2 FUSE 1 10A FUSE 2 10A FUSE 3 15 FUSE 4 15 FUSE 5 25 FUSE 6 15 FUSE 7 25 FUSE 8 10 FUSE 9 15 FUSE 10 15 LI R FUSE 11 15 FUSE 12 25 FUSE 13 15 FUSE 14 104 4 2 FUSE 15 25 FUSE 16 FUSE 17 FUSE 18 NOTE THE FUSE LOGATIONS SHOWN HERE MAY VARY FROM VEHICLE TO VEHICLE 273 CONNECTOR PINOUTS FUSES FUSE BLOCK NO 2 FUSE AMPS FUSED CIRCUIT FUNCTION NO 1 10
111. 8 POWER LOCKS RKE 8 8 1 CENTRAL TIMER MODULE CENTRAL TIMER n MODULE 810d5bea 252 COMPONENT LOCATIONS 8 8 2 SENTRY KEY REMOTE ENTRY MODULE SENTRY KEY REMOTE INSTRUMENT TK N ds S H N L T 5 81006672 DOOR LATCH ASSEMBLY DOOR LOCK MOTOR AJAR SWITCH 810d6642 8 8 4 CONTACT PLATES 4 RIGHT REAR DOOR SHOWN SLIDING DOORS SIMILAR CONTACT PLATE PIN SHOWN PIN SIMILAR 81097063 253 COMPONENT LOCATIONS 8 8 POWER DOOR LOCKS RKE Continued 8 8 5 DOOR LOCK MOTOR AJAR SWITCH CONNECTORS 2m207300 DOOR LOCK MOTOR AJAR SWITCH CONNECTORS LEFT FRONT DOOR SHOWN RIGHT FRONT TYPICAL L T 5 81045998 8 9 VEHICLE THEFT SECURITY SYSTEM 8 9 1 SECURITY SYSTEM MODULE SECURITY SYSTEM CENTRAL TIMER MODULE MODULE 810d5bea 8 9 2 INTRUSION SENSORS INTRUSION SENSOR NO 2 INTRUSION CI SENSOR NO 3 INTRUSION SENSOR NO 1 SS 8111358 811135ce 254 COMPONENT LOCATIONS 8 9 3 SWITCHES 12mZ207300 DRIVER DOOR JAMB SWITCH TYPICAL DRIVER CYLINDER L LOCK SWITCH 5 810 56 8 9 4 SIREN 81113639 255 NOTES 9 0 CONNECTOR PINOUTS A C AUXILIARY FAN CONNECTOR NOT AVAILABLE
112. AGE 205 INTERFACE CIRCUIT SHORT TO VOLTAGE SKREEM 206 THE ACM HAS UNLOCKED THE DOORS 208 UNKNOWN TROUBLE CODE UNKNOWN DTC 2 209 RAKE INOPERATIVE 4 62 xy e RR Sees oe EAR ERE EEG Ra Be 210 RISE POOR RANGE EIE P RUP REL Nr CPP ae 211 8 0 TABLE OF CONTENTS Continued VEHICLE THEFT SECURITY DRIVER CYLINDER LOCK SWITCH CIRCUIT SHORT TO GROUND 212 DRIVER CYLINDER UNLOCK SWITCH CIRCUIT SHORT TO GROUND 214 FRONT DOOR JAMB SWITCH CIRCUIT SHORT TO GROUND 216 INTERNAL ERROR a ad 88 TRA komade daa st 218 TOWING INCLINATION SENSOR BEYOND LIMITS 218 TOWING INCLINATION SENSOR VALUE IS 218 TOWING INCLINATION SENSOR VALUE IS 51 218 INTRUSION SENSOR 1 CIRCUIT OPEN SHORT TO GROUND 220 INTRUSION SENSOR 1 GROUND CIRCUIT OPEN 222 INTRUSION SENSOR 2 CIRCUIT OPEN SHORT TO GROUND 223 INTRUSION SENSOR 2 GROUND CIRCUIT 225 INTRUSION SENSOR 3 CIRCUIT OPEN SHORT TO GROUND 226 INTRUSION SENSOR GROUND CIRCUIT 228 REAR OR SLIDING DOOR JAMB SWITCH CIRCUIT SHORT TO GROUND 229 RKE INTERFACE
113. AIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as guide inspect the wiring and connectors Look for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related to the Driver circuits rotate the steering wheel from stop to stop You have just attempted to simulate the condition that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List problem found at this time Erase all codes before returning vehicle to customer 44 AIRBAG Symptom LOSS OF IGNITION RUN START aaa a When Monitored and Set Condition LOSS OF IGNITION RUN START When Monitored With the ignition in the Run Start position the ACM monitors the Fused Ignition Switch Output Run Start circuit for proper system voltage Set Cond
114. ALID Turn the ignition off Inspect the heater s air intake pipe and exhaust pipe for restrictions and obstruc tions 15 the heater s air intake pipe and exhaust pipe Ok Yes Replace the Cabin Heater Assembly or Heater Booster Assembly in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 Repair the heater s air intake exhaust as necessary in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 87 CABIN Symptom List FLAME OUT NO START Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be FLAME OUT When Monitored and Set Condition FLAME OUT When Monitored After heater activation and during subseguent attempts to start the heater Set Condition This DTC will set if the Flame Sensor s resistance is not within the expected parameters NO START When Monitored After heater activation Set Condition This DTC will set if the Flame Sensor s resistance is not within the expected parameters 340 seconds after activation POSSIBLE CAUSES LOW FUEL LEVEL IN VEHICLE S FUEL TANK HEATER S FUEL LINE RESTRICTED LEAKING DAMAGED DOSING PUMP HEATER S AIR INTAKE EXHAUST RESTRICTED CABIN HEATER ASSEMBLY OR HEATER BOOSTER ASSEMBLY 88 CABIN OUT Continued ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA AII THAT DOES NOT HA
115. AN Bus circuit in the Instrument Cluster harness connector Is the resistance 60 ohms 3 0 ohms Yes Replace the Instrument Cluster in accordance with the service information Perform BODY VERIFICATION TEST VER 1 Repair the CAN Bus or the CAN C Bus circuit for an open Perform BODY VERIFICATION TEST VER 1 191 INSTRUMENT CLUSTER Symptom NO CAN COMMUNICATION WITH TCM POSSIBLE CAUSES DTC PRESENT OPEN CAN CIRCUITS AT INSTRUMENT CLUSTER INSTRUMENT CLUSTER CHECK POWERS AND GROUNDS TO THE AFFECTED MODULE OPEN CAN CIRCUITS AT TCM ACTION APPLICABILITY With the DRBIIIS record and erase Cycle the ignition switch from ON to OFF to With the DRBIII9 read DTC 5 Did this DTC reset Yes GoTo 2 Theconditions that caused this code to set are not present at this time Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 With the DRBIII9 check the ABS ECM for this same or similar TCM message error DTC Is the same or similar DTC set in the ECM Yes GoTo 3 GoTo 5 help isolate an open or shorted condition Repair as necessary Perform BODY VERIFICATION TEST VER 1 GoTo 4 Turn the ignition off to the lock position Disconnect the TCM harness connector Measure the resistance between the CAN Bus circuit and the CAN Bus circuit in the TCM
116. AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Refill the cooling system in accordance with the Service Information Start the engine Allow the engine to reach normal operating temperature Turn the engine off Allow the engine coolant to cool down to a temperature of 50 C 122 F Start the engine Allow the engine to reach normal operating temperature Turn the engine off View repair Repair GoTo 5 WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH NOTE The heater s control unit will store up to five DTCs in its memory NOTE If the heater s control unit detects a new fault in the system one that is not already stored in its memory it will clear the oldest of the five stored DTCs and it will store the new fault s DTC NOTE If the heater s control unit detects a reoccurrence of a stored fault it will overwrite that fault s DTC with the most recent occurrence Turn the ignition on Verify that the Cabin Heater or Heater Booster is switched off Set the blend control to the max heat position and the mode control to the floor position Start the engine Allow the engine to idle With the
117. ARTS SPECIFIED IN THE MOPAR PARTS CATALOG SUBSTITUTE PARTS MAY APPEAR INTER CHANGEABLE BUT INTERNAL DIFFERENCES MAY RESULT IN INFERIOR OCCUPANT PROTECTION THE FASTENERS SCREWS BOLTS ORIGINALLY USED FOR THE AIRBAG SYSTEM COMPONENTS HAVE SPECIAL COATINGS AND ARE SPECIFICALLY DESIGNED FOR THE AIRBAG SYSTEM THEY MUST NEVER BE REPLACED WITH ANY SUBSTITUTES ANY TIME A NEW FASTENER IS NEEDED REPLACE IT WITH THE CORRECT FASTENERS PROVIDED IN THE SERVICE PACKAGE OR SPECIFIED IN THE MOPAR PARTS CATALOG FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJURY OR DEATH 3 1 4 SEAT BELT TENSIONERS Front seat belt systems incorporate a Driver and optional Passenger Seat Belt Tensioner Retractors At the onset of an impact event each tensioner uses a pyrotechnic device which is triggered simulta neously with the front airbags to rapidly retract the seat belts With the slack removed the occu pant s forward motion in an impact will be reduced as will the likelihood of contacting interior compo nents After an impact that deploys the airbag the seat belt tensioner assembly must be replaced The ACM module monitors the Seat Belt Tensioners Circuit resistance and reports active and stored DTCs if any problem is found Follow all of the safety procedures when servicing tensioner 3 1 5 SPECIAL TOOLS Airbag load tools 8310 and 8443 are used in some airbag diagnostic test The load to
118. ASSENGER SEAT BELT TENSIONER SHORT TO GROUND ammu When Monitored and Set Condition PASSENGER SEAT BELT TENSIONER SHORT TO GROUND When Monitored With theignition on the ACM monitors the resistance of the Passenger Seat Belt Tensioner circuits Set Condition When the ACM detects la short to ground in either Passenger Seat Belt Tensioner circuits POSSIBLE CAUSES PASSENGER SEAT BELT TENSIONER SHORT TO GROUND PASSENGER SEAT BELT TENSIONER LINE LINE 2 SHORTED TO GROUND ACM PASSENGER SBT SHORT TO GROUND STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on All NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 5 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery must be disconnected WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Passenger Seat Belt Tensioner connector NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool to the Passenger Seat Belt Tensioner connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION ON THEN RECONNECT THE BATTERY With the DRBIII2 read the active Airbag Control Module 5 Does
119. ASTER DOOR LOCK SWITCH SENSE ALL DOORS 4 5 6 7 8 16WT RD MASTER DOOR LOCK SWITCH SENSE PASSENGER DOORS 9 16WT BK DRIVER DOOR AJAR INDICATOR DRIVER 10 16BR GROUND PANIC ALARM SWITCH BLACK CAV CIRCUIT FUNCTION 1 18GY DG RD LAMP DRIVER 2 18BR GROUND 4 5 6 7 18GY WT PANIC SWITCH SENSE 8 9 10 18BR GROUND 280 CONNECTOR PINOUTS POWER DISTRIBUTION CENTER FUSE FUSE FUSE FUSE FUSE FUSE 1 2 3 4 5 6 200 10 125 80 125 100 LI R 4 2 95 NOTE THE FUSE LOGATIONS SHOWN HERE MAY VARY FROM VEHICLE TO VEHICLE FUSES PDC FUSE AMPS FUSED CIRCUIT FUNCTION NO 1 200A 4RD FUSED B 4 2 70A 10RD FUSED B 4 3 125 8RD FUSED B 4 4 80A 8RD FUSED B 4 5 125A 8RD FUSED B 4 6 1004 8RD FUSED 281 R E 2 CONNECTOR PINOUTS A2 Al B2 B1 BLACK TL IT HU amic m Cmm 5 RADIO C1 CONNECTOR NOT AVAILABLE CONNECTOR NOT AVAILABLE CONNECTOR NOT AVAILABLE B8 B7 RADIO C1 BLACK
120. ATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION RE PAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Cabin Heater harness connector Remove the Fan Stage 1 Relay from the relay center Measure the resistance of the Fan Stage 1 Relay High Side Control circuit between the Cabin Heater harness connector and the relay center Fan Stage 1 Relay connector terminal 86 Is the resistance below 5 0 ohms Yes GoTo 3 No Repair the Fan Stage 1 Relay High Side Control circuit for an open Perform HEATER VERIFICATION TEST VER 1 WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off Reconnect the Cabin Heater harness connector Install a substitute relay in place of the Fan Stage 1 Relay Turn the ignition on Verify that the Cabin Heater is switched off Set the blend control to the max heat position and the mode control to the floor position With
121. ATH TURN IGNITION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair Replace the Airbag Control Module in accordance with Service Instructions Perform AIRBAG VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Instrument Cluster connectors NOTE Check connectors Clean and repair as necessary Measurethe resistance of theAirbag Warning Lamp Driver circuit between the ACM Adaptor and Instrument Cluster Connector Is the resistance below 5 0 ohms Yes 6 Repair the open or high resistance in the Airbag Warning Indica tor Driver circuit Perform AIRBAG VERIFICATION TEST VER 1 20 AIRBAG AIRBAG WARNING INDICATOR DRIVER LOW Continued ACTION APPLICABILITY Measure the resistance of the Airbag Warning Lamp Driver circuit between the All Airbag Control Module Adaptor and ground Is the resistance below 5 0 ohms Yes Repair the Airbag Warning Indicator Driver circuit shorted to ground Perform AIRBAG VERIFICATION TEST VER 1 GoTo 7 WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING WARNING IF THE AIRBAG C
122. AYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Cabin Heater harness connector Remove the Circulation Pump Relay from the relay center Measure the resistance of the Circulation Pump Relay High Side Control circuit between the Cabin Heater harness connector and the relay center Circulation Pump Relay connector terminal 86 Is the resistance below 5 0 ohms Yes GoTo 3 Repair the Circulation Pump Relay High Side Control circuit for an open Perform HEATER VERIFICATION TEST VER 1 WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off Reconnect the Cabin Heater harness connector Install a substitute relay in place of the Circulation Pump Relay Turn the ignition on Verify that the Cabin Heater is switched off Set the blend control to the max heat position and the mode control to the floor position With the DRBIII erase the Cabin Heater Module s DTCs Star
123. AYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACEMENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL URY OR DEATH Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Cabin Heater harness connector Remove the substitute Circulation Pump Relay from the relay center Measurethe resistance between ground and the Circulation Pump Relay High Side Control circuit 15 the resistance below ohms Yes Repair the Circulation Pump Relay High Side Control circuit for short to ground Reinstall the original Circulation Pump Relay Perform HEATER VERIFICATION TEST VER 1 No GoTo 3 WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACEMENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL URY OR DEATH Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Cabin Heater harness connector Remove the Circulation Pump Relay from the relay center Measure the resis
124. All NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED ACM DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 5 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery must be disconnected 39 AIRBAG DRIVER SQUIB 1 SHORT TO BATTERY Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI All TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Driver Airbag Squib connector s WARNING TO AVOID PERSONAL INJ URY OR DEATH DO NOT PLACE AN INTACT UNDEPLOYED AIRBAG FACE DOWN HARD SURFACE THE AIRBAG WILL PROPEL INTO THE AIR IF ACCIDENTALLY DEPLOYED NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool to the Driver Airbag connector s WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII2 read the active Airbag Control Module 5 Does the DRBIII show DRIVER SQUIB 1 SHORT TO BATTERY Yes GoTo 3 Replace the Driver Airbag in accordance with the Service nfor mation Perform AIRBAG VERIFICATION TEST VER 1 WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Load Tool from the Dr
125. Automatic Temperature Control ATC C1 harness connector Measure the resistance between ground and the Refrigerant Pressure Sensor Feedback circuit Is the resistance below 10k ohms Yes Repair the Refrigerant Pressure Sensor Feedback circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 6 Turn the ignition off Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the Refrigerant Pressure Sensor Feedback circuit and the Ground circuit Is the resistance below 10k ohms Yes Repair the Refrigerant Pressure Sensor Feedback circuit for a short to the Ground circuit Perform BODY VERIFICATION TEST VER 1 GoTo 7 Turn the ignition off Disconnect the Refrigerant Pressure Sensor harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the Refrigerant Pressure Sensor F eedback circuit and the Sensor Ground circuit 15 the resistance below 10k ohms Yes Repair the Refrigerant Pressure Sensor Feedback circuit for a short to the Sensor Ground circuit Perform BODY VERIFICATION TEST VER 1 Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 174 HEATING amp Symptom WATER CYCLE VALVE CONTROL HIGH OR OPEN ACTIVE POSSIBLE CAUSES WATER CYCLE VALVE WATER CYCLE VALVE CONTROL CIRCUIT SHORT
126. BAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related to the Driver circuits rotate the steering wheel from stop to stop You have just attempted to simulate the condition that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning vehicle to customer 30 AIRBAG Symptom DRIVER SEAT BELT TENSIONER SHORT TO GROUND amm When Monitored and Set Condition DRIVER SEAT BELT TENSIONER SHORT TO GROUND When Monitored With the ignition on the ACM monitors the voltage of the Driver Seat Belt Tensioner circuits Set Condition When the ACM detects a short to ground in either Driver Seat Belt Tensioner circuits POSSIBLE CAUSES DRIVER SEAT BELT TENSIONER SHORT TO GROUND DRIVER SEAT BELT LINE LINE 2 SHORT TO GROUND ACM DRIVER SEAT BELT TENSIONER SHORT TO GROUND STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on All NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 5 NOTE When reconnecting airbag system components Ignition must be turned off and the Battery must be d
127. BATTERY RELAY AUXILIARY D RELAY NO 2 TIME DELAY RELAY ADDITIONAL HEAT EXCHANGER REAR RELAY WINDOW DEFOGGER RELAY OPTIONAL EQUIPMENT LI R RELAY FAN STAGE 1 RELAY 4 2 AUXILIARY FAN RELAY HORN NOTE THE RELAY LOCATIONS SHOWN HERE MAY VARY FROM VEHICLE TO VEHICLE 283 RELAY CONNECTOR PINOUTS A C AUXILIARY FAN RELAY RELAY BLOCK CAV CIRCUIT FUNCTION 30 14BL YL FUSED B 85 18 GROUND 86 18BK RD AUXILIARY FAN RELAY CONTROL 87 14DG BK AUXILIARY FAN RELAY OUTPUT 87A CIRCULATION PUMP RELAY CABIN HEATER MODULE RELAY BLOCK CAV CIRCUIT FUNCTION 30 18DG BK CIRCULATION PUMP RELAY OUTPUT 85 16BR GROUND 86 16BL YL CIRCULATION PUMP RELAY HIGH SIDE CONTROL 87 16RD BL FUSED B 87A 16BK YL FUSED IGNITION SWITCH OUTPUT RUN START D RELAY NO 2 RELAY BLOCK CAV CIRCUIT FUNCTION 30 14RD FUSED B 85 16RD BK FUSED D RELAY NO 1 OUTPUT 86 16BR GROUND 87 14B
128. BIII9 display the same DTC Yes GoTo 2 Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 With the DRBIII actuate the Siren Did the siren sound with the actuation and does the Siren function properly otherwise Yes This DTC can beignored if there other complaints with the operation of the Siren Perform BODY VERIFICATION TEST VER 1 Replace the Siren Perform BODY VERIFICATION TEST VER 1 237 VEHICLE THEFT SECURITY Symptom SIREN SIGNAL CONTROL CIRCUIT SHORT TO GROUND When Monitored and Set Condition SIREN SIGNAL CONTROL CIRCUIT SHORT TO GROUND When Monitored Whenever the battery voltage is above 10 0 volts and the Security System Module is connected Set Condition The Security System M odule detects a short to ground on the Siren Signal Control circuit POSSIBLE CAUSES DTC PRESENT SIREN SIGNAL CONTROL WIRE SHORTED SIREN ACTION APPLICABILITY With the DRBIII record and erase All Remove the ignition key Close and lock all doors and set the Vehide Theft Security System Wait 1 minute Disarm the Vehicle Theft System With the DRBIII9 read Does the DRBIII9 display the same DTC Yes GoTo 2 Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION
129. BODY VERIFICATION TEST VER 1 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Blower Motor Resistor Block harness connector Disconnect the Blower Motor harness connector Disconnect the Automatic Temperature Control ATC C2 harness connector Turn the ignition on Measure the voltage of each of the Blower Motor Driver circuits Low M1 M2 High 15 the voltage above 0 2 volts on any of the circuits Yes Repair each circuit with voltage above 0 2 volts for a short to voltage Perform BODY VERIFICATION TEST VER 1 GoTo 3 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Automatic Temperature Control ATC C2 harness connector Disconnect the Blower Motor Resistor Block harness connector Disconnect the Blower Motor harness connector Measure the resistance of the Blower Motor Driver circuits Low M1 M2 High between the Automatic Temperature Control ATC C2 harness connector and the Blower Motor Resistor Block harness connector Measure the resistance of the Blower Motor High Driver circuit between the Automatic Temperature Control ATC C2 harness connector and the Blower Motor harness connector 15 the resistance below 5 0 ohms on each of the circuits Yes GoTo 4 Repair each circuit with a resistance above 5 0 ohms for an open Perform BODY VERIFICATION TEST VER 1 144 HEATING amp BLOWE
130. Belt Tensioner circuits Set Condition When the ACM detects voltage on the Passenger Seat Belt Tensioner circuits POSSIBLE CAUSES PASSENGER SEAT BELT TENSIONER SHORT TO BATTERY PASSENGER SEAT BELT TENSIONER LINE 1 OR LINE 2 SHORT TO BATTERY ACM PASSENGER SBT SHORT TO BATTERY STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on All NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 5 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery must be disconnected WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Passenger Seat Belt Tensioner connector NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool to the Passenger Seat Belt Tensioner connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION ON THEN RECONNECT THE BATTERY With the DRBIII9 read the active Airbag Control Module 5 Does the DRBIII9 display PASSENGER SBT SHORT TO BATTERY Yes GoTo 3 Replacethe Passenger Seat Belt Tensioner in accordance with the Service I nformation Perform AIRBAG VERIFICATION TEST VER 1 51 AIRBAG PASSENGER SEAT
131. C1 harness connector Measure the resistance between the Water Cycle Valve Control circuit and the Sensor Ground circuit in the Automatic Temperature Control C1 harness connector 15 the resistance below 10k ohms Yes Repair the Water Cycle Valve Control circuit for a short to the Sensor Ground circuit Perform BODY VERIFICATION TEST VER 1 GoTo 4 177 HEATING amp WATER CYCLE VALVE CONTROL SHORTED LOW ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All NOTE Check connectors Clean repair as necessary Reconnect the Automatic Temperature Control ATC C1 harness connector Press the Residual Engine Heat Utilization REST switch off Disconnect the Water Cycle Valve harness connector Connect a 12 volt test light between the Water Cycle Valve Control circuit and the Ground circuit in the Water Cycle Valve harness connector The test light should operate as follows With the Residual Engine Heat Utilization REST switch off the test light should not illuminate Press the Residual Engine Heat Utilization REST switch on With the Blend control set to Full Cold the test light should illuminate brightly and continuously With the Blend control set to one position below the half Cold Hot setting the test light should illuminate brightly and blink at a slow continuous rate With the Blend control set to the half Cold Hot setting or above the test light should be off Does the test light
132. CIRCUIT SHORTED TO GROUND CONTROLLER ANTILOCK BRAKE K ABS SHIFTER ASSEMBLY CIRCUIT SHORTED TO VOLTAGE K ABS SHIFTER ASSEMBLY CIRCUIT OPEN SHIFTER ASSEMBLY ACTION APPLICABILITY Turn the ignition off All Disconnect the Shifter Assembly harness connector Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located in the service information to help isolate an open or shorted condition Repair as necessary Perform NAG1 TRANSMISSION VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the Shifter Assembly harness connector Disconnect the DRBIII from the DLC Measure the resistance between ground and the K ABS Shifter Assembly circuit Is the resistance below 5 0 ohms Yes GoTo 3 GoTo 4 Turn the ignition off Disconnect the CAB harness connector Measure the resistance between ground and the K ABS Shifter Assembly circuit Is the resistance below 5 0 ohms Yes Repair the K ABS Shifter Assembly circuit for a short to ground Perform NAG1 TRANSMISSION VERIFICATION TEST VER 1 Replace the Controller Antilock Brake in accordance with the service information Perform 1 TRANSMISSION VERIFICATION TEST VER 1 124 COMMUNICATION NO RESPONSE FROM SHIFTER ASSEMBLY Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the DRBIII from the DLC Disconnect the Shifter Assembly h
133. CLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Cabin Heater harness connector Remove the substitute Fan Stage 1 Relay from the relay center Measure the resistance between ground and the Fan Stage 1 Relay High Side Control circuit 15 the resistance below ohms Yes Repair theFan Stage 1 Relay High Side Control circuit for a short to ground Reinstall the original Fan Stage 1 Relay Perform HEATER VERIFICATION TEST VER 1 No GoTo 3 WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Cabin Heater harness connector Remove the Fan Stage 1 Relay
134. CONNECTOR NOT AVAILABLE 4 2 TRANSMISSION CONTROL MODULE C2 BLACK CAV CIRCUIT FUNCTION 12 20BL GY 2 INPUT SPEED SENSOR 13 20BK BL SENSOR SUPPLY VOLTAGE 14 16WT 1 2 4 5 SOLENOID CONTROL 15 16 1 3 4 SOLENOID CONTROL 16 16WT BL 2 3 SOLENOID CONTROL 17 16YL BL TCC SOLENOID CONTROL 33 20PK SENSOR GROUND 34 20GY BL TEMPERATURE SENSOR P N SWITCH 35 20BL DG N3 INPUT SPEED SENSOR 36 16BR GY MODULATION PRESSURE SOLENOID CONTROL 27 16BK RD SHIFT PRESSURE SOLENOID CONTROL 38 16BK SOLENOID SUPPLY VOLTAGE H 20DG WT CAN C BUS L 2000 CAN C BUS WATER CYCLE VALVE CAV CIRCUIT FUNCTION 1 18BR VT WATER CYCLE VALVE CONTROL 2 18BR GROUND WINDOW DEFOGGER LEFT REAR CAV CIRCUIT FUNCTION 1 16GY DEFOGGER RE WINDOW DEFOGGER RELAY LEFT REAR OUTPUT LAYS 1 16GY EXCEPT DEFOGGER WINDOW DEFOGGER LEFT REAR OUTPUT RELAYS 2 GROUND WINDOW DEFOGGER RIGHT REAR CAV CIRCUIT FUNCTION 16GY DEFOGGER RE LAYS WINDOW DEFOGGER RELAY RIGHT REAR OUTPUT 16GY EXCEPT DEFOGGER RELAYS WINDOW DEFOGGER RIGHT REAR SIGNAL 16BR GROUND 288 SCHEMATIC DIAGRAMS 10 0 SCHEMATIC DIAGRAMS 10 1 AIRBAG SYSTEM AIRBAG CONTROL MODULE BL Driver Seat Belt Tensioner Line 2 BR YL Driver Seat Belt Tensioner Line 1 DRIVER SEAT BELT TENSIONER BL Pass
135. CTION 1 2 3 16WT DG PASSENGER DOOR AJAR INDICATOR DRIVER 4 5 6 16WT RD MASTER DOOR LOCK SWITCH SENSE PASSENGER DOORS 7 16DG BK LEFT SLIDING DOOR UNLOCK SENSE 8 9 10 16DG RD REAR DOOR UNLOCK SENSE 11 16YL WT LEFT SLIDING DOOR LOCK SENSE 12 16YL BK REAR DOOR LOCK SENSE 13 16YL RD RIGHT SLIDING DOOR LOCK SENSE 14 16DG YL RIGHT SLIDING DOOR UNLOCK SENSE 15 16 17 16BK RD PASSENGER DOORS UNLOCK DRIVER 18 16BL RD PASSENGER DOORS LOCK DRIVER CIRCULATION PUMP CABIN HEATER MODULE CAV CIRCUIT FUNCTION 1 18DG RD CIRCULATION PUMP RELAY OUTPUT 2 18BR GROUND CIRCULATION PUMP REST SYSTEM CAV CIRCUIT FUNCTION 1 18DG RD CIRCULATION PUMP CONTROL 2 18BR GROUND CIRCULATION PUMP DIODE CAV CIRCUIT FUNCTION 3 18DG RD CIRCULATION PUMP RELAY OUTPUT 18DG BK CABIN HEATER MODULE CIRCULATION PUMP RELAY OUTPUT 18BK EXCEPT PROGRAM TIMER FUSED OPTIONAL EQUIPMENT RELAY OUTPUT 261 LI R 4 2 CONNECTOR PINOUTS YELLOW CLOCKSPRING C2 YELLOW ll GAV CIRCUIT FUNCTION 2 1 1 2 DRIVER AIRBAG SQUIB 1 LINE 1 CLOCKSPRING C2 2 20 DRIVER AIRBAG SQUIB 1 LINE 2 CONTROLLER ANTILOCK BRAKE CAV CIRCUIT FUNCTION 1 12BR GROUND 2 12RD FUSED B 3 4
136. CUIT FUNCTION 1 16BK DRIVER CYLINDER UNLOCK SENSE 2 3 16BR GROUND 4 16RD DRIVER CYLINDER LOCK SENSE DATA LINK CONNECTOR BLACK CAV CIRCUIT FUNCTION 1 20wT DG K SKREEM 2 8 20DG YL ENGINE RPM 4 20BR GROUND 5 20BR GROUND 6 7 20BL YL K ECM 8 20BK BL DG FUSED IGNITION SWITCH OUTPUT RUN START 9 20BL BK K ABS SHIFTER ASSEMBLY 10 11 20BL K TCM RADIO 12 20GY DG RD K CTM SSM 13 20BK RD K ACM 14 15 20WT GY K IC ATC HBM CHM 16 20RD YL FUSED B DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY DRIVER C1 CAV CIRCUIT FUNCTION 1 16YL BK DRIVER DOOR LOCK SENSE 2 16DG BK DRIVER DOOR UNLOCK SENSE DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY DRIVER C2 CAV CIRCUIT FUNCTION 1 teBK RD DRIVER DOOR UNLOCK DRIVER 2 16BL RD DRIVER DOOR LOCK DRIVER DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY LEFT SLIDING C1 CAV CIRCUIT FUNCTION 1 teBK RD PASSENGER DOORS UNLOCK DRIVER 2 16BL RD PASSENGER DOORS LOCK DRIVER 263 LI R 4 2 R E 2 CONNECTOR PINOUTS CONNECTOR NOT AVAILABLE DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY PASSENGER 1 DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY PASSENGER C2 DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY LEFT SLIDING C2 CONNEC
137. Check connectors Clean repair as necessary Disconnect the Cabin Heater or Heater Booster harness connector NOTE Check connectors Clean repair as necessary Disconnect the Dosing Pump harness connector Measure the resistance of the Dosing Pump Control circuit between the Dosing Pump harness connector and the Cabin Heater or Heater Booster harness connector as applicable 15 the resistance below 5 0 ohms Yes GoTo 4 Repair the Dosing Pump Control circuit for an open Perform HEATER VERIFICATION TEST VER 1 79 CABIN DOSING PUMP OPEN Continued ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Cabin Heater or Heater Booster harness connector NOTE Check connectors Clean repair as necessary Disconnect the Dosing Pump harness connector Measure the resistance of the Ground circuit between the Dosing Pump harness connector and the Cabin Heater or Heater Booster harness connector Is the resistance belo
138. Control ATC C1 harness connector Is the voltage above 4 5 volts Yes GoTo 4 Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 156 HEATING amp TEMP SENSOR HIGH OPEN ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All NOTE Check connectors Clean repair as necessary Disconnect the Automatic Temperature Control ATC C1 harness connector Disconnect the Evaporator Temperature Sensor harness connector Measure the resistance of the Evaporator Temperature Sensor Signal circuit between the Automatic Temperature Control ATC C1 harness connector and the E vaporator Temperature Sensor harness connector Is the resistance below 5 0 ohms Yes GoTo 5 Repair the Evaporator Temperature Sensor Signal circuit for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Automatic Temperature Control ATC C1 harness connector Disconnect the Evaporator Temperature Sensor harness connector Measure the resistance of the Sensor Ground circuit between the Automatic Temperature Control ATC C1 harness connector and the Evaporator Temperature Sensor harness connector Is the resistance below 5 0 ohms Yes Replace the Evaporator Temperature Sensor in accordance with the Service Information Pe
139. DRBIII monitor for Cabin Heater or Heater Booster Module DTCs while performing the following step NOTE Do not disconnect the vehicle s battery or the heater s main power supply while the heater is in operation or in run down mode Failure to follow these instructions can result in excess emissions from the heater during heater operation Switch the Cabin Heater or Heater Booster on If necessary allow the heater to run through at least one cycle of operation approximately 10 minutes and then turn the heater off Turn the engine off Does the DRBIII display any DTCs Overheating Related DTC s Reset Replace the Cabin Heater Assembly or Heater Booster Assembly in accordance with the Service nformation Perform HEATER VERIFICATION TEST VER 1 Ovrheatng DTC s clear Other DTC s Set Return to the symptom list and choose the symptom s Perform HEATER VERIFICATION TEST VER 1 No DTCs Present Test Complete 95 CABIN Symptom OVER VOLTAGE When Monitored and Set Condition OVER VOLTAGE When Monitored With the engine running Set Condition This DTC will set if the heater s power supply exceed 15 9 volts for longer than 20 seconds POSSIBLE CAUSES VEHICLE S CHARGING SYSTEM OVERCHARGING CABIN HEATER OR HEATER BOOSTER CONTROL UNIT ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WH
140. DTC GoTo 2 ACM STORED DTC GoTo 5 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery must be disconnected AIRBAG AIRBAG WARNING INDICATOR DRIVER HIGH Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION All OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Airbag Control Module connector WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH NOTE Check connectors Clean and repair as necessary Connect the Airbag Load Tool ACM Adaptor to the Airbag Control Module connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION ON THEN RECONNECT THE BATTERY Measure the voltage of the Airbag Warning Indicator Driver circuit at the ACM adaptor Is the voltage above 10 0 volts Yes GoTo 3 GoTo 4 Turn the ignition off Disconnect the Instrument Cluster connectors NOTE Check connectors Clean and repair as necessary Measure the voltage of the Airbag Warning Indicator Driver circuit at the ACM adaptor Is the voltage above 10 0 volts Yes Repair theAirbag Warning Indicator Driver circuit for a short to voltage Perform AIRBAG VERIFICATION TEST VER 1 Replace the Instrument Cluster in accordance with Service In
141. E 1 SHORTED LOW STORED CABIN HEATER CONTROL HIGH OR OPEN STORED CABIN HEATER CONTROL SHORTED LOW STORED CIRC PUMP CONTROL HIGH OR OPEN STORED CIRC PUMP CONTROL SHORTED LOW STORED EVAP TEMP SENSOR HIGH OR OPEN STORED EVAP TEMP SENSOR SHORTED LOW STORED NO COMMUNICATION BUS STORED NO COMMUNICATION WITH ECM STORED NO COMMUNICATION WITH 1 STORED RECIRC AIR SOLENOID CONTROL HIGH OR OPEN STORED RECIRC AIR SOLENOID CONTROL SHORTED LOW STORED REFRIG PRESS SENSOR HIGH OR OPEN STORED REFRIG PRESS SENSOR SHORTED LOW STORED WATER CYCLE VALVE CONTROL HIGH OR OPEN STORED WATER CYCLE VALVE CONTROL SHORTED LOW STORED Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be COMPRESSOR CONTROL HIGH OR OPEN STORED 3 When Monitored and Set Condition NO COMMUNICATION BUS STORED When Monitored With the ignition on Set Condition This DTC will set if the Automatic Temperature Control ATC fails to receive all module messages NO COMMUNICATION WITH ECM STORED When Monitored With the ignition on Set Condition This DTC will set if the Automatic Temperature Control ATC fails to receive all messages from the ECM 130 HEATING amp A C COMPRESSOR CONTROL HIGH OPEN STORED Continued NO COMMUNICATION WITH IC STORED When Monitored With the ignition on Set Condition This DTC will s
142. E EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off NOTE Check connectors Clean repair as necessary Reconnect the Cabin Heater or Heater Booster harness connector Disconnect the Dosing Pump harness connector Connect a 12 volt test light between the Dosing Pump Control circuit and the Ground circuit in the Dosing Pump harness connector Turn the ignition on With the DRBIII9 in System Tests select Dosing Pump Output The test Light should illuminate brightly and flash continuously during actuation Does the test light operate as specified Yes Replace the Dosing Pump in accordance with the Service Infor mation Perform HEATER VERIFICATION TEST VER 1 GoTo 3 WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off NOTE
143. E THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION RE PAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL URY OR DEATH NOTE The heater s control unit will store up to five DTCs in its memory NOTE If the heater s control unit detects a new fault in the system one that is not already stored in its memory it will clear the oldest of the five stored DTCs and it will store the new fault s DTC NOTE If the heater s control unit detects a reoccurrence of a stored fault it will overwrite that fault s DTC with the most recent occurrence Turn the ignition on Verify that the Cabin Heater or Heater Booster is switched off Set the blend control to the max heat position and the mode control to the floor position With the DRBIII record and erase the Cabin Heater or Heater Booster Module s DTCs Start the engine Allow the engine to idle With the DRBIII9 monitor for Cabin Heater Moduleor Heater Booster ModuleDTCs while performing the following step NOTE Do not disconnect the vehicle s battery or the heater s main power supply while the heater is in operation or in run down mode Failure to follow these instructions can result in excess emissions
144. ED TO VOLTAGE AUTOMATIC TEMPERATURE CONTROL ATC WATER CYCLE VALVE CONTROL CIRCUIT OPEN GROUND CIRCUIT OPEN AUTOMATIC TEMPERATURE CONTROL ATC ACTION APPLICABILITY Turn the ignition off All Press the Residual Engine Heat Utilization REST switch off NOTE Check connectors Clean repair as necessary Disconnect the Water Cycle Valve harness connector Connect 12 volt test light between the Water Cycle Valve Control circuit and the Ground circuit in the Water Cycle Valve harness connector The test light should operate as follows With the Residual Engine Heat Utilization REST switch off the test light should not illuminate Press the Residual Engine Heat Utilization REST switch on With the Blend control set to Full Cold the test light should illuminate brightly and continuously With the Blend control set to one position below the half Cold H ot setting the test light should illuminate brightly and blink at a slow continuous rate With the Blend control set to the half Cold H ot setting or above the test light should be off Does the test light operate as specified Yes Replace the Water Cycle Valve in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 No Light Illuminates With REST Off GoTo 2 No Light Will Not Illuminate GoTo 3 No Light Won t Correspond To Blend GoTo 3 175 HEATING amp WATER CYCLE VALVE CONTROL HIGH OPEN ACTIVE Continued
145. ELT TENSIONER CIRCUIT SHORT Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION All OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Load Tool from the Passenger Seat Belt Tensioner connector Disconnect the Airbag Control Module connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool ACM Adaptor to the Airbag Control Module connector s Measure the resistance between the Passenger SBT Line 1 and line 2 circuit at the Passenger Seat Belt Tensioner connector 15 the resistance below 10K ohms Yes Repair the Passenger Seat Belt Tensioner Line 1 short to Line 2 circuit Perform AIRBAG VERIFICATION TEST VER 1 GoTo 4 WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair ReplacetheAirbag Control Module in accordance with the Service Information Perform AIRBAG VERIFICATION TEST VER 1 With the DRBIII record and erase all DTC s from all Airbag modules If equipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI
146. EMP SENSOR SHORTED LOW ACTIVE POSSIBLE CAUSES AIR OUTLET TEMPERATURE SENSOR AIR OUTLET TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND AIR OUTLET TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND CIRCUIT AUTOMATIC TEMPERATURE CONTROL ATC AIR OUTLET TEMPERATURE SENSOR SIGNAL CIRCUIT SHORT TO SENSOR GROUND CIR CUIT ACTION APPLICABILITY Turn the ignition off All Disconnect the Air Outlet Temperature Sensor harness connector Turn the ignition on With the DRBIII record and erase Automatic Temperature Control DTCs Turn the ignition off wait 5 seconds then turn the ignition on With the DRBIII read the Automatic Temperature Control DTCs Does the DRBIII9 display AIR OUTLET TEMP SENSOR HIGH OR OPEN Yes Replace the Air Outlet Temperature Sensor in accordance with the Service I nformation Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between ground and the Air Outlet Temperature Sensor Signal circuit Is the resistance below 10k ohms Yes Repair the Air Outlet Temperature Sensor Signal circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 3 Turn the ignition off Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the Air Outlet Temperature Sensor Signal circuit and the Ground circuit Is the resist
147. EN AIRBAG CONTROL MODULE ACTION APPLICABILITY WARNING TURN THE IGNITION OFF DISCONNECT THE BATTERY AND All WAIT TWO MINUTES BEFORE PROCEEDING FAILURE TO DO SO MAY RESULT IN PERSONAL INJ URY OR DEATH Disconnect the Airbag Control Module harness connector Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located in the service information to help isolate an open or shorted condition Repair as necessary Perform AIRBAG VERIFICATION TEST VER 1 GoTo 2 WARNING TURN THE IGNITION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING FAILURE TO DO SO MAY RESULT IN PERSONAL INJ URY OR DEATH Disconnect the ACM harness connector Disconnect the DRBIII9 from the DLC Measure the resistance between ground and the K ACM circuit Is the resistance below 5 0 ohms Yes Repair the K ACM circuit for a short to ground Perform AIRBAG VERIFICATION TEST VER 1 No GoTo 3 WARNING TURN THE IGNITION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING FAILURE TO DO SO MAY RESULT IN PERSONAL INJ URY OR DEATH Disconnect the DRBIII from the DLC Disconnect the ACM harness connector Turn the ignition on Using a 12 volt test light connected to ground probe the K ACM circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly
148. EN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL URY OR DEATH CAUTION DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY THE HEATER PRE TEST ALWAYS PERFORM THE HEATER PRE TEST PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE VALID Check the vehicle s charging system for proper operation in accordance with the Service Information Is the vehicle s charging system operating properly Yes Replace the Cabin Heater Assembly or Heater Booster Assembly in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 Repair the vehicle s charging system in accordance with the Service nformation Perform HEATER VERIFICATION TEST VER 1 96 Symptom List OVERHEATING SENSOR OPEN OVERHEATING SENSOR SHORTED Test Note All symptoms listed above are diagnosed using the same tests Thetitle for the tests will be OVERHEATING SENSOR OPEN When Monitored and Set Condition OVERHEATING SENSOR OPEN When Monitored During heater activation and operation Set Condition This DTC will set if the Overheating Sensor s resistance is not within the expected parameters OVERHEATING SENSOR SHORTED When Monitored During heater activation and operation Set
149. ER 1 GoTo 4 WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair Replace the Airbag Control Module in accordance with Service Instructions Perform AIRBAG VERIFICATION TEST VER 1 63 AIRBAG PASSENGER SQUIB 1 SHORT TO BATTERY Continued ACTION APPLICABILITY With the DRBIII record and erase all DTC s from all Airbag modules All If equipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors L ook for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals Thefollowing additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 monitor active codes as you work through the following steps WARNING TO AVO
150. ERIFICATION TEST VER 1 198 POWER DOOR LOCKS RKE PASSENGER DOOR AJAR INDICATOR DRIVER CIRCUIT SHORT TO GROUND Continued ACTION APPLICABILITY Disconnect the Central Timer Module C1 connector All Disconnect the Master Door Lock Switch connector Measure the resistance between ground and the Passenger Door Ajar Indicator Driver circuit Is the resistance below 20000 0 ohms Yes Repair the Passenger Door Ajar Indicator Driver wire for a short to ground Perform BODY VERIFICATION TEST VER 1 Replace the Central Timer Module Perform BODY VERIFICATION TEST VER 1 199 POWER DOOR LOCKS RKE Symptom REPLACE CONTROL MODULE When Monitored and Set Condition REPLACE CONTROL MODULE When Monitored Whenever the battery voltage is above 10 0 volts and the module is connected Set Condition The SKREEM has detected an internal failure and must be replaced POSSIBLE CAUSES CTM INTERNAL FAILURE APPLICABILITY View repair AII Repair Replace the Sentry Key RemotE Entry Module in accordance with Service Instructions Perform BODY VERIFICATION TEST VER 1 200 POWER DOOR LOCKS RKE Symptom RKE INTERFACE CIRCUIT SHORT TO GROUND When Monitored and Set Condition RKE INTERFACE CIRCUIT SHORT TO GROUND CTM When Monitored Whenever the battery voltage is above 10 0 volts and the module is connected Set Condition If the CTM monitors a resistan
151. ID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related tothe Driver circuits rotatethe steering wheel from stop to stop You have just attempted to simulate the condition that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning vehicle to customer 64 AIRBAG Symptom PASSENGER SOUIB 1 SHORT TO GROUND When Monitored and Set Condition PASSENGER SQUIB 1 SHORT TO GROUND When Monitored With theignition on theACM monitors the resistance of the Passenger Squib 1 circuits Set Condition When the ACM detects a short to ground in either Passenger Squib 1 circuits POSSIBLE CAUSES PAB SQUIB 1 CIRCUITS SHORT TO GROUND PAB SQUIB 1 LINE 1 LINE 2 SHORT TO GROUND ACM PAB SQUIB 1 SHORT TO GROUND STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT APPLICABILITY Turn the ignition on AII NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC 5 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery
152. ION APPLICABILITY Turn the ignition off All Disconnect the DRBIII from the DLC Disconnect the TCM harness connectors Turn the ignition on Using a 12 volt test light connected to ground probe the K TCM RADIO circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes GoTo 5 GoTo 6 Turn the ignition off Disconnect the Radio harness connectors Turn the ignition on Using a 12 volt test light connected to ground probe the K TCM RADIO circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes Repair the K TCM RADIO circuit for a short to voltage Perform NAG1 TRANSMISSION VERIFICATION TEST VER 1 Replace the Radio in accordance with the service information Perform 1 TRANSMISSION VERIFICATION TEST VER 1 Turn the ignition off Disconnect the TCM harness connectors Disconnect the DRBIII2 from the DLC Measure the resistance of the K TCM RADIO circuit between the TCM connector and the DLC 15 the resistance below 5 0 ohms Yes Replace the Transmission Control Module in accordance with the Service Information Perform NAGI TRANSMISSION VERIFICATION TEST VER 1 Repair K TCM RADIO circuit for an open Perform NAGI TRANSMISSION VERIFICATIO
153. IONS CAN RESULT IN PERSONAL INJ URY OR DEATH CAUTION DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY THE HEATER PRE TEST ALWAYS PERFORM THE HEATER PRE TEST PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE VALID Turn the ignition off Install a substitute relay in place of the Fan Stage 1 Relay Turn the ignition on Verify that the Cabin Heater is switched off Set the blend control to the max heat position and the mode control to the floor position With the DRBIII erase the Cabin Heater Module s DTCs Start the engine Allow the engine to idle With the DRBIII monitor for Cabin Heater Module DTCs while performing the following step NOTE Do not disconnect the vehicle s battery or the heater s main power supply while the heater is in operation or in run down mode Failure to follow these instructions can result in excess emissions from the heater during heater operation Switch the Cabin Heater necessary allow the heater to run through at least one cycle of operation approximately 10 minutes and then switch the heater off Turn the engine off Does the DRBIII9 display FAN STAGE 1 RELAY CONTROL SHORTED Yes GoTo 2 Replace the original Fan Stage 1 Relay in accordance with the Service nformation Perform HEATER VERIFICATION TEST VER 1 85 CABIN FAN STAGE 1RELAY CONTROL SHORTED Continued ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN EN
154. Instrument Cluster Internal Failure View Repair Replace the Instrument Cluster in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 185 INSTRUMENT CLUSTER Symptom INSTRUMENT CLUSTER INTERNAL FAILURE B1053 POSSIBLE CAUSES CAN BUS FAILURE INSTRUMENT CLUSTER ACTION APPLICABILITY If this fault is present scan the Engine Control Module and or Transmission Control All Module for any CAN Bus related faults any CAN Bus Related faults present Yes Refer tothe symptom list for repair information relating to CAN Bus failures Perform BODY VERIFICATION TEST VER 1 GoTo 2 With the DRBIII erase DTCs Turn the ignition off wait 10 seconds then turn the ignition on With the DRBIII9 read DTCs Does the DRBIII9 read 1053 Instrument Cluster Internal Failure View Repair Replace the Instrument Cluster in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 186 INSTRUMENT CLUSTER Symptom INSTRUMENT CLUSTER OVERVOLTAGE POSSIBLE CAUSES CHARGING SYSTEM OVERCHARGE INSTRUMENT CLUSTER ACTION APPLICABILITY Check the Charging System for proper operation in accordance with the Service AII Information Is the Charging system operating properly Yes Replace the Instrument Cluster in accordance with the service information Perform BODY VERIFICATION TEST VER 1 Repair the vehicle s charging system in accordance with the
155. K and 6500 0 6 5K ohms Yes Replace the Sentry Key Remote Entry Module Perform BODY VERIFICATION TEST VER 1 No GoTo 3 203 POWER DOOR LOCKS RKE INTERFACE CIRCUIT SHORT TO GROUND SKREEM Continued ACTION APPLICABILITY Disconnect the Central Timer Module C1 connector All Disconnect the SKREEM connector Measure the resistance between ground and the RKE Interface circuit 15 the resistance below 20000 0 ohms Yes Repair the RKE Interface circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 4 Disconnect the Central Timer Module C1 connector Disconnect the SKREEM connector Measure the resistance of the RKE Interface circuit between the SK REEM connector and the CTM connector 15 the resistance below 5 0 ohms Yes Replace the Central Timer Module Perform BODY VERIFICATION TEST VER 1 Repair the Interface circuit for an open Perform BODY VERIFICATION TEST VER 1 204 POWER DOOR LOCKS RKE Symptom RKE INTERFACE CIRCUIT SHORT TO VOLTAGE CTM When Monitored and Set Condition RKE INTERFACE CIRCUIT SHORT TO VOLTAGE When Monitored Whenever the battery voltage is above 10 0 volts and the module is connected Set Condition If the CTM monitors a voltage on the Interface circuit for over 30 seconds this code will set POSSIBLE CAUSES CENTRAL TIMER MODULE SHORT TO VOLTAGE RKE INTERFACE WIRE
156. L YL D RELAY NO 2 OUTPUT 87A STAGE 1 RELAY RELAY BLOCK 0 CAV CIRCUIT FUNCTION N 30 14BK VT FAN STAGE 1 RELAY OUTPUT N 85 16BR GROUND E 86 16BL YL FAN STAGE 1 RELAY HIGH SIDE CONTROL 87 16RD WT FUSED B T 87A OPTIONAL EQUIPMENT RELAY RELAY BLOCK R CAV CIRCUIT FUNCTION 30 10RD FUSED B P 85 16BR GROUND 86 16BK YL FUSED IGNITION SWITCH OUTPUT RUN START N 87 10BK OPTIONAL EQUIPMENT RELAY OUTPUT U T 5 REMOTE KEYLESS ENTRY ANTENNA CIRCUIT FUNCTION AVAILABLE 1 20BR RKE ANTENNA 3 GROUND SEAT BELT SWITCH CAV CIRCUIT FUNCTION 5 1 16BR GROUND 2 20YL RD SEAT BELT SWITCH SIGNAL 3 10 1 5 6 7 BELT 8 SWITCH 9 10 284 CONNECTOR PINOUTS YELLOW 1 2 SEAT BELT TENSIONER DRIVER YELLOW CAV CIRCUIT FUNCTION 1 20BL DRIVER SEAT BELT TENSIONER LINE 2 2 20BR YL DRIVER SEAT BELT TENSIONER LINE 1 SEAT BELT TENSIONER DRIVER YELLOW 1 2 SEAT BELT TENSIONER PASSENGER YELLOW CAV CIRCUIT FUNCTION 1 2 PASSENGER SEAT BELT TENSIONER LINE 2 2 20BR PASSENGER SEAT BELT TENSIONER LINE 1 SEAT BELT TENSIONER PASSENGER SECURITY SYSTEM MODULE C1 BROWN
157. LLY DROPPED DURING SERVICE THE MODULE MUST BE SCRAPPED AND REPLACED WITH A NEW UNIT FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJURY OR DEATH 3 1 1 DRIVER AIRBAG The airbag protective trim cover is the most visible part of the driver side airbag system The airbag is mounted directly to the steering wheel Located under thetrim cover arethe airbag cushion and the airbag cushion supporting components When supplied with the proper electrical signal the inflator discharged the gas directly into the cush ion The airbag cannot be repaired and must be replaced if deployed or in any way damaged WARNING THE DRIVER AIRBAG MODULE CONTAINS ARGON GAS PRESSURIZED TO OVER 17236 89 Kpa 2500 PSI DO NOT ATTEMPT TO DISMANTLE AN AIRBAG MODULE OR TAMPER WITH ITS INFLATOR DO NOT PUNCTURE INCINERATE OR BRING INTO CONTACT WITH ELECTRICITY DO NOT STORE TEMPERATURE EXCEEDING 93 C 200 F REPLACE AIRBAG SYSTEM COMPONENTS ONLY WITH PARTS SPECIFIED IN THE CHRYSLER MOPAR PARTS CATALOG SUBSTITUTE PARTS MAY APPEAR INTER CHANGEABLE BUT INTERNAL DIFFERENCES MAY RESULT IN INFERIOR OCCUPANT PROTECTION THE FASTENERS SCREWS BOLTS ORIGINALLY USED FOR THE AIRBAG SYSTEM COMPONENTS HAVE SPECIAL COATINGS AND SPECIFICALLY DESIGNED FOR THE AIRBAG SYSTEM THEY MUST NEVER BE REPLACED WITH ANY SUBSTITUTES ANY TIME A NEW FASTENER IS NEEDED REPLACE WITH THE CORRECT FASTENE
158. LOW 173 WATER CYCLE VALVE CONTROL HIGH OR OPEN ACTIVE 175 WATER CYCLE VALVE CONTROL SHORTED LOW ACTIVE 177 INSTRUMENT CLUSTER AMBIENT TEMP SENSOR OPEN SHORT TO BATTERY 179 AMBIENT TEMP SENSOR SHORT TO GROUND RE E RR RR 181 FUEL LEVEL SENSOR OPEN SHOHT TO 182 FUEL LEVEL SENSOR SHORT TO ORBOUNLP 2 4 nat and kin uid a 184 INSTRUMENT CLUSTER INTERNAL FAILURE 1043 185 INSTRUMENT CLUSTER INTERNAL FAILURE 1053 186 INSTRUMENT CLUSTER OVERVOLTAGE wok 187 NO CAN COMMUNICATION WITH 5 188 NO CAN COMMUNICATION WITH ECM 190 NO CAN COMMUNICATION WITH 192 PREGLOW INDICATOR LAMP FAILURE bese bias Ren 194 INDICATOR LAMP FAILURE rtm mme ox 195 POWER DOOR LOCKS RKE DRIVER DOOR AJAR INDICATOR DRIVER CIRCUIT SHORT TO GROUND 196 PASSENGER DOOR AJAR INDICATOR DRIVER CIRCUIT SHORT TO GROUND 198 REPLACE CONTROL MODULE RRSP HK ERTRS ERG bee gad 200 INTERFACE CIRCUIT SHORT TO GROUND 201 RKE INTERFACE CIRCUIT SHORT TO GROUND SKREEM 203 INTERFACE CIRCUIT SHORT TO VOLT
159. LT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair Replace theAirbag Control Modulein accordance with the Service Information WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED Perform AIRBAG VERIFICATION TEST VER 1 29 AIRBAG DRIVER SEAT BELT TENSIONER SHORT TO BATTERY Continued ACTION APPLICABILITY With the DRBIII record and erase all DTC s from all Airbag modules All If equipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors Look for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIR
160. LVE RECIRCULATED AIR SOLENOID VALVE CONTROL CIRCUIT SHORTED TO VOLTAGE AUTOMATIC TEMPERATURE CONTROL ATC RECIRCULATED AIR SOLENOID VALVE CONTROL CIRCUIT OPEN GROUND CIRCUIT OPEN AUTOMATIC TEMPERATURE CONTROL ATC ACTION APPLICABILITY Turn the ignition on All Press the Air Recirculation switch off Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Recirculated Air Solenoid Valve harness connector Connect a 12 volt test light between the Recirculated Air Solenoid Valve Control circuit and the Ground circuit in the Recirculated Air Solenoid harness connector Turn the ignition on The test light should operate as follows With the Air Recirculation switch off the test light should not illuminate Press the Air Recirculation switch on The test light should illuminate brightly Does the test light function as specified Yes Light Only Illuminates w Recirc On Replace the Recirculated Air Solenoid Valve in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 No Light Illuminates w Recirc Off GoTo 2 No Light Will Not Illuminate GoTo 3 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Recirculated Air Solenoid Valve harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Turn the ignition on Measure the voltage of the Recirculated Air Solenoid Valve Control circuit Is the vo
161. MAIL IN THe FIRST CLASS MAIL PERMIT NO 124 CENTER LINE STATES POSTAGE WILL BE PAID BY ADDRESSEE DaimlerChrysler Corporation Dealer Technical Operations 800 Chrysler Drive CIMS 486 02 76 Auburn Hills MI 48326 2757 FOLD HERE
162. MATIC TEMPERATURE CONTROL DTC S PRESENT HEATER SYSTEM COMPONENTS ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off and either allow the engine coolant to cool down to at least 50 C 122 F or cold soak the engine CAUTION When using a powered exhaust ventilation system do not attach the exhaust ventilation hose directly to the heater s exhaust pipe Too much suction can prevent heater operation When using a powered exhaust ventilation system affix the ventilation hose to the heater s exhaust pipe or tothe vehicle in such a manor that the end of the ventilation hose remains approximately three inches away from the end of the exhaust pipe When using a non powered exhaust ventilation system affix the ventilation hose directly to the heater s exhaust pipe Turn the ignition on With the DRBIII attempt to communicate with the Cabin Heater M odule or Heater Booster Module and the Automatic Temperature Control M odule Does the DRBIII9 display NO RESPONSE Yes Refer to the Communication Category for the related symptom Perform HEATER VERIFICATION TEST VER 1 No GoTo 2 69 CABIN Continued ACTION APPLICABILITY WARNING NEVER OPERAT
163. Measure the resistance between the A C Compressor Clutch Control circuit and the Ground circuit in the Automatic Temperature Control C1 harness connector 15 the resistance below 10k ohms Yes Repair the A C Compressor Clutch Control circuit for a short to the Ground circuit Perform BODY VERIFICATION TEST VER 1 GoTo 4 132 HEATING amp COMPRESSOR CONTROL SHORTED LOW ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the A C Compressor Clutch harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the A C Compressor Clutch Control circuit and the Sensor Ground circuit in the Automatic Temperature Control C1 harness connector 15 the resistance below 10k ohms Yes Repair the A C Compressor Clutch Control circuit for a short to the Sensor Ground circuit Perform BODY VERIFICATION TEST VER 1 Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 133 HEATING amp Symptom AIR OUTLET TEMP SENSOR HIGH OR OPEN ACTIVE POSSIBLE CAUSES AIR OUTLET TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE AUTOMATIC TEMPERATURE CONTROL ATC AUTOMATIC TEMPERATURE CONTROL ATC AIR OUTLET TEMPERATURE SENSOR SIGNAL CIRCUIT OPEN SENSOR GROUND CIRCUIT OPEN AIR OUTLET TEMPERATURE SENSOR ACTION APPLICABILITY Turn the i
164. Monitored and Set Condition FRONT DOOR J AMB SWITCH CIRCUIT SHORT TO GROUND When Monitored Whenever the battery voltage is above 10 0 volts and the Security System Module is connected Set Condition If a front door jamb switch is closed or the front courtesy lamps control circuit is grounded for over 30 minutes this code will set POSSIBLE CAUSES DTC PRESENT DRIVER DOOR J AMB SWITCH SHORTED PASSENGER DOOR J AMB SWITCH SHORTED SECURITY SYSTEM MODULE SHORTED FRONT COURTESY LAMPS CONTROL SHORT TO GROUND ACTION APPLICABILITY NOTE Ensure the front courtesy lamp switches are operating properly All before proceeding NOTE If this code is active the front courtesy lamps will remain on with all the doors closed With the DRBIII record and erase Cycle the ignition switch from ON to OFF to ON With the DRBIII9 read Open and close the front doors several times while observing the DRBIII9 Wait 10 seconds Does the DRBIII9 display FRONT DOOR J AMB SWITCH CIRCUIT SHORT GROUND Yes GoTo 2 Theconditions that caused this code to set are not present at this time Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Driver Door amb Switch connector Ensure the passenger door is closed Observe the courtesy lamps Did the courtesy lamps go off Yes
165. N TEST VER 1 127 HEATING amp Symptom A C COMPRESSOR CONTROL HIGH OR OPEN ACTIVE POSSIBLE CAUSES A C COMPRESSOR CLUTCH CONTROL CIRCUIT SHORTED TO VOLTAGE A C COMPRESSOR CLUTCH A C COMPRESSOR CLUTCH CONTROL CIRCUIT OPEN AUTOMATIC TEMPERATURE CONTROL ATC ACTION APPLICABILITY Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the A C Compressor Clutch harness connector Turn the ignition on Press the Air Conditioning switch off Measure the voltage of the A C Compressor Clutch Control circuit Is the voltage above 10 0 volts Yes GoTo 2 GoTo 4 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Automatic Temperature Control ATC C1 harness connector Disconnect the A C Compressor Clutch harness connector Turn the ignition on Measure the voltage of the A C Compressor Clutch Control circuit Is the voltage above 0 2 volts Yes Repair the A C Compressor Clutch Control circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 GoTo 3 Turn the ignition off NOTE Check connectors Clean repair as necessary Reconnect the Automatic Temperature Control ATC C1 harness connector Reconnect the A C Compressor Clutch harness connector Verify that the A C Compressor Clutch Ground is clean and tight Turn the ignition on With the DRBIII erase DTCs Turn the ignition off wait 5 seco
166. ND 15 INTERNAL WIPER SWITCH OUTPUT 16 INTERNAL WIPER SWITCH OUTPUT 18 INTERNAL FUSED IGNITION SWITCH OUTPUT RUN START 19 INTERNAL 12 VOLT SUPPLY 21 INTERNAL WIPER ON OFF SWITCH OUTPUT 22 INTERNAL FUSED B FUSE BLOCK NO 1 C2 SONNE T R CAV CIRCUIT FUNCTION NOT 1 14BK RD FUSED IGNITION SWITCH OUTPUT RUN AVAILABLE 2 14BKIVL FUSED IGNITION SWITCH OUTPUT START 16GY DG FUSED IGNITION SWITCH OUTPUT ACC OFF 4 14BK FUSED IGNITION SWITCH OUTPUT RUN START 271 R 4 2 915 CONNECTOR PINOUTS BLACK db dh dh dh FUSE BLOCK 0 1 A BLACK cole ee FUSE BLOCK NO 1 C4 z E R 4 2 FUSE BLOCK NO 1 BLACK CAV CIRCUIT FUNCTION 1 2 16BK VT FUSED IGNITION SWITCH OUTPUT RUN START 12VT IGNITION SWITCH OUTPUT START 4 5 12RD FUSED B FUSE BLOCK NO 1 C4 BLACK CAV CIRCUIT FUNCTION 1 16RD BL FUSED B 2 14RD BK FUSED B 3 4 16BK RD ENGINE CONTROL RELAY OUTPUT 5 16WT FUSED HIGH BEAM SWITCH OUTPUT
167. NE 1 AIRBAG SQUIB DRIVER YELLOW 1 2 AIRBAG SQUIB PASSENGER YELLOW CAV CIRCUIT FUNCTION 1 20BL DG PASSENGER AIRBAG SQUIB 1 LINE 2 2 20BR DG PASSENGER AIRBAG SQUIB 1 LINE 1 AIRBAG SQUIB PASSENGER AMBIENT TEMPERATURE SENSOR LI CAV CIRCUIT FUNCTION 1 20BL DG AMBIENT TEMPERATURE SENSOR SIGNAL R 2 20BR DG AMBIENT TEMPERATURE SENSOR SIGNAL RETURN SENSOR 0 U 5 258 21 AUTOMATIC TEMPERATURE CONTROL MODULE C1 CONNECTOR NOT AVAILABLE AUXILIARY HEATER CONTROL CONNECTOR NOT AVAILABLE CONNECTOR PINOUTS AUTOMATIC TEMPERATURE CONTROL MODULE C1 BROWN CAV CIRCUIT FUNCTION 1 16RD BL FUSED B 2 18DG RD REST SYSTEM CIRCULATION PUMP CONTROL 18BK RD AUXILIARY FAN RELAY HIGH SIDE CONTROL 4 16BL YL HEATER BOOSTER MODE 5 18BR VT WATER CYCLE VALVE CONTROL 6 20RD BL 5
168. O GROUND CAN CIRCUITS SHORTED TOGETHER ENGINE CONTROL MODULE SENTRY KEY REMOTE ENTRY MODULE ACTION APPLICABILITY Turn the ignition off All Disconnect the Instrument Cluster harness connectors Turn the ignition on Measure the voltage between CAN C Bus circuit and ground Measure the voltage between CAN C Bus circuit and ground 15 the voltage above 3 0 volts on either circuit Yes GoTo 2 No GoTo 3 160 HEATING amp NO COMMUNICATION BUS ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All Using a voltmeter connect one end to the CAN circuit that previously measured above 3 0 volts and the other end to ground NOTE Refer to the wiring diagrams in the service information to help determine which modules are connected to the CAN Bus NOTE Wait one minute after turning the ignition off before disconnecting the module Disconnect a module that is connected to the CAN bus Turn the ignition on Monitor and note the voltmeter reading Repeat this procedure until either the voltage reading drops below 3 0 volts or all modules that are connected tothe CAN Bus disconnected and the voltage reading remains above 3 0 volts Then proceed to the condusion question What is the outcome gt 3 0 volts w all modules disconnected Repair the CAN C Bus circuit or the CAN C Bus circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 3 0 volts after
169. ODY VERIFICATION TEST VER 1 Replace the Antenna in the left A pillar Perform BODY VERIFICATION TEST VER 1 211 VEHICLE THEFT SECURITY Symptom DRIVER CYLINDER LOCK SWITCH CIRCUIT SHORT TO GROUND When Monitored and Set Condition DRIVER CYLINDER LOCK SWITCH CIRCUIT SHORT TO GROUND When Monitored Whenever the battery voltage is above 10 0 volts and the Security System Module is connected Set Condition If the Driver Cylinder Lock Sense circuit is grounded for over 30 seconds this code will set POSSIBLE CAUSES DTC PRESENT DRIVER CYLINDER LOCK SWITCH SHORTED DRIVER CYLINDER LOCK SENSE CIRCUIT SHORT TO GROUND SECURITY SYSTEM MODULE SHORT TO GROUND ACTION APPLICABILITY With the DRBIII record and erase All Cycle the ignition switch from ON to OFF to ON With the DRBIII read Remove the ignition key Lock and unlock the doors from the Driver Cylinder Lock Switch several times while observing the DRBIII9 Wait 10 seconds Does the DRBIII9 display DRIVER CYLINDER LOCK SWITCH CIRCUIT SHORT TO GROUND Yes GoTo 2 Theconditions that caused this code to set are not present at this time Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Driver Cylinder Lock Switch connector Measure the resistance between ground and th
170. OL ATC AUTOMATIC TEMPERATURE CONTROL ATC EVAPORATOR TEMPERATURE SENSOR SIGNAL CIRCUIT OPEN SENSOR GROUND CIRCUIT OPEN EVAPORATOR TEMPERATURE SENSOR ACTION APPLICABILITY Turn the ignition off All NOTE Check connectors Clean repair as necessary Disconnect the Evaporator Temperature Sensor harness connector Turn the ignition on While back probing measure the voltage between the Evaporator Temperature Sensor Signal circuit and the Sensor Ground circuit Is the voltage above 5 3 volts Yes GoTo 2 GoTo 3 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Evaporator Temperature Sensor harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Turn the ignition on Measure the voltage of the Evaporator Temperature Sensor Signal circuit Is the voltage above 0 2 volts Yes Repair the Evaporator Temperature Sensor Signal circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Evaporator Temperature Sensor harness connector Turn the ignition on While back probing measure the voltage between the Evaporator Temperature Sensor Signal circuit and Senor Ground circuit in the Automatic Temperature
171. OM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related tothe Driver circuits rotatethe steering wheel from stop to stop You have just attempted to simulate the condition that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning vehicle to customer 32 AIRBAG Symptom DRIVER SOUIB 1CIRCUIT OPEN When Monitored and Set Condition DRIVER SQUIB 1CIRCUIT OPEN When Monitored With the ignition on the ACM monitors the resistance of the Driver Sguib 1 circuits Set Condition TheACM detects an open circuit or high resistance in the Driver Squib 1 circuits POSSIBLE CAUSES DRIVER AIRBAG SQUIB 1 CIRCUIT OPEN CLOCKSPRING SQUIB 1 CIRCUIT OPEN DRIVER SQUIB 1 LINE LINE 2 CIRCUITS OPEN ACM DRIVER SQUIB 1 CIRCUIT OPEN STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on All NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 6 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery must be disconnected 33 AIRBAG
172. ON to OFF to With the DRBIII read 5 Remove the ignition key UsingtheRKE transmitter operate the Door Locks several times while observing the DRBIII Wait 10 seconds Does the DRBIII9 display INTERFACE CIRCUIT FAILURE Yes GoTo 2 No Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Using the RKE transmitter operate the door locks several times and re check for any DTC s Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Security System Module C2 connector Measure the resistance between ground and the RKE Interface circuit 15 the resistance between 5500 0 5 5K and 6500 0 6 5K ohms Yes Replace the Security System Module Perform BODY VERIFICATION TEST VER 1 No GoTo 3 231 VEHICLE THEFT SECURITY INTERFACE CIRCUIT FAILURE SSM Continued ACTION APPLICABILITY Disconnect the Central Timer Module C1 connector All Disconnect the Security System Module C2 connector Measure the resistance between ground and the RKE Interface circuit 15 the resistance below 20000 0 ohms Yes Repair the Interface circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 4 Disconnect the Central Timer Module C1 connector Disconnect the Security System Module C2 connector Measure the resistance of the RKE Interface circuit between the SSM C
173. ONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair Replace theAirbag Control Module in accordance with the Service Information Perform AIRBAG VERIFICATION TEST VER 1 With the DRBIII record and erase all DTC s from all Airbag modules If equipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors L ook for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and con
174. OOSTER CONTROL UNIT ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off Inspect the vehicle s battery terminals cable terminals and cables for corrosion and damage in accordance with the Service Information Test the vehicle s battery in accordance with the Service Information Is the vehicle s battery system Ok Yes GoTo 2 Clean repair the vehicle s battery system in accordance with the Service nformation Perform HEATER VERIFICATION TEST VER 1 WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Check the vehicle s charging system for proper operation in accordance with the Service Information Is the vehicle s charging system operating properly Yes GoTo 3 Repair the vehicle s charging system in accordance with the Service nformation Perform HEATER VERIFICATION TEST VER 1 99 CABIN UNDER VOLTAGE Continued ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VEN
175. ORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 8 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery must be disconnected AIRBAG AIRBAG WARNING INDICATOR DRIVER LOW Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Airbag Control Module connector WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH NOTE Check connectors Clean and repair as necessary Connect the Airbag Load Tool ACM Adaptor to the Airbag Control Module connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION ON THEN RECONNECT THE BATTERY Measure the voltage of the Airbag Warning Indicator Driver circuit at the ACM adaptor Is the voltage above 9 0 volts Yes GoTo 3 GoTo 5 Turn the ignition off All Connect a jumper between the Airbag Warning Indicator Driver circuit at the ACM Adaptor and ground Turn the ignition on Observe the SRS indicator while turning the ignition on Does the SRS indicator illuminate Yes GoTo 4 Replace the Instrument Cluster in accordance with Service In structions Perform AIRBAG VERIFICATION TEST VER 1 WARNING TO AVOID PERSONAL INJ URY OR DE
176. PBDN 0955 404 aa Re hee ERI aitas raua 76 CONTROL UNIT EAUDEY aiti arai a tom tena bodes ae dicar trn eth eg 77 DOSING PUMP OPEN gt T 78 DOSING PUMP SHORTED 222 37 d m Pare PARC e REV EC es 81 FAN STAGE 1 RELAY CONTROL OPEN 2 1 4 43714 eR RR ERR ERE RR IER 83 FAN STAGE 1 RELAY CONTROL SHORTED RERO eR Rt 85 FLAME DETECT PRIOR TO GCOMBUNST xis rre ex RR Idee ER ait 87 FLAME OUT oit arr e SCR bae d RR ho ee poil ap 88 TART tansy othe oe 88 FLAME SENSOR 2224 pa xcti acie tr deae edo 91 TABLE OF CONTENTS Continued FLAME SENSOR SHORMED tal aa ala 91 GLOW PIN OPEN sse rase RA ERE ERE EDE RNC mess 91 GLOW PIBESHORTED RE ek pU REPRE VERRE E PE ER A a 91 HEATER IN LOCKOUT MODE 546 CRX o acr ge eu aces 93 HEA ER OVERBHEATEL 544223 688 808 kaemuse eales 93 SUCCESSIVE OVERHEATING 2 che gr eh Rh RR RE RR qr 93 OVER VOLTAGE Eben ih pe ous Pi oe bE n nak hetman kt 96 OVERHEATING SENSOR OPEN 5 252555554 6 seesama kaks 97 OVERHEATING SENSOR SHORTED 4 4 42754459439 omama as 97 TEMP SENSOR Seen cea eksis 98 TEMP SENSOR SHORTED
177. Perform BODY VERIFICATION TEST VER 1 161 HEATING amp NO COMMUNICATION BUS ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the negative battery cable NOTE Refer to the wiring diagrams in the service information to help determine which modules are connected to the CAN Bus Disconnect all of the modules that are connected to the CAN Bus Measure the resistance between the CAN Bus circuit and the CAN Bus circuit at any disconnected module s harness connector 15 the resistance below 10k ohms Yes Repair the CAN C Bus circuit for a short to the CAN C Bus circuit Perform BODY VERIFICATION TEST VER 1 GoTo 6 Turn the ignition off Reconnect the Engine Control Module harness connectors While back probing measure the resistance of the CAN Bus circuit and the CAN C Bus circuit at the ECM harness connector 15 the resistance 120 0 2 0 ohms Yes Replacethe Sentry Key Remote Entry Modulein accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Replace the Engine Control Module in accordance with the Service I nformation Perform BODY VERIFICATION TEST VER 1 162 HEATING amp Symptom NO COMMUNICATION WITH ECM ACTIVE When Monitored and Set Condition NO COMMUNICATION WITH ECM ACTIVE When Monitored With the ignition on Set Condition This DTC will set if the Automatic Tempera
178. R STAGE OR OPEN ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All NOTE Check connectors Clean repair as necessary Disconnect the Blower Motor Resistor Block harness connector Measure the resistance between Blower Motor Resistor Block cavity 2 and cavity 1 The approximate resistance should be 1 4 ohms Measure the resistance between Blower Motor Resistor Block cavity 2 and cavity 3 The approximate resistance should be 0 8 ohms Measure the resistance between Blower Motor Resistor Block cavity 2 and cavity 4 The approximate resistance should be 1 6 ohms 15 the resistance as specified for each circuit Yes Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Replace the Blower Motor Resistor Block in accordance with the Service nformation Perform BODY VERIFICATION TEST VER 1 145 HEATING amp Symptom BLOWER STAGE 1 SHORTED LOW ACTIVE POSSIBLE CAUSES BLOWER MOTOR FUSE BLOWER MOTOR BLOWER MOTOR DRIVER CIRCUIT S SHORTED TO GROUND FUSED B CIRCUIT SHORTED TO GROUND BLOWER MOTOR RESISTOR BLOCK AUTOMATIC TEMPERATURE CONTROL ATC ACTION APPLICABILITY Turn the ignition off All Remove and inspect the Blower Motor Fuse and replace it if necessary NOTE of the following criteria must be met in order to successfully run the ATC Function Test Place the shift lever in Park Turn
179. R VERIFICATION TEST VER 1 GoTo 2 WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL URY OR DEATH Turn the ignition off Inspect the heater s coolant hoses for restrictions leakage and damage Are the heater s coolant hoses Ok Yes GoTo 3 Repair the heater s coolant hoses as necessary in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Check that the engine s cooling system is operating properly in accordance with the Service Information Is the engine s cooling system operating properly Yes GoTo 4 Repair the engine s cooling system in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 94 CABIN IN LOCKOUT MODE Continued ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED
180. RCUIT SHORT EIL LLL When Monitored and Set Condition DRIVER SQUIB 1 CIRCUIT SHORT When Monitored With the ignition on the ACM monitors the resistance of the Driver Squib 1 circuits Set Condition The has detected low resistance on the Driver Squib 1 circuits POSSIBLE CAUSES DRIVER AIRBAG SQUIB 1 CIRCUIT SHORT CLOCKSPRING DRIVER SQUIB 1 CIRCUITS SHORT DRIVER AIRBAG SQUIB 1 LINE 1 SHORT TO LINE 2 ACM DRIVER SQUIB LINE 1 SHORT TO LINE 2 STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on All NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 6 NOTE When reconnecting airbag system components the Ignition must be turned off and the Battery must be disconnected 36 AIRBAG DRIVER SQUIB 1 CIRCUIT SHORT Continued APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI AII TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES FORE PROCEEDING Disconnect the Driver Airbag connector s NOTE Check connectors Clean and repair as necessary WARNING AVOID PERSONAL INJ URY OR DEATH DO NOT PLACE INTACT UNDEPLOYED AIRBAG FACE DOWN ON AHARD SURFACE THE AIRBAG WILL PROPEL INTO THE AIR IF ACCIDENTALLY DEPLOYED Connect the appropriate Load Tool t
181. RIFICATION TEST VER 1 105 COMMUNICATION Symptom NO RESPONSE FROM CABIN HEATER MODULE POSSIBLE CAUSES CHECK POWERS AND GROUNDS TO THE CABIN HEATER MODULE MODULE INTERNAL SHORT TO GROUND K IC ATC HBM CHM CIRCUIT SHORTED TO GROUND MODULE INTERNAL SHORT TO VOLTAGE K IC ATC HBM CHM CIRCUIT SHORTED TO VOLTAGE ATC HBM CHM CIRCUIT OPEN CABIN HEATER MODULE ACTION APPLICABILITY Turn the ignition off All Disconnect the Cabin Heater Module harness connector Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located in the service information to help isolate an open or shorted condition Repair as necessary Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the Cabin Heater Module harness connector Disconnect the DRBIII9 from the DLC Measure the resistance between ground and the K IC ATC HBM CHM circuit 15 the resistance below 5 0 ohms Yes GoTo 3 GoTo 4 Turn the ignition off Disconnect the Cabin Heater Module harness connector Measure the resistance between ground and the K IC ATC HBM CHM circuit While monitoring the ohmmeter disconnect each module IC ATC HBM one at a time NOTE The vehicle may not be equipped with all the above modules Is the resistance below 5 0 ohms with all the above modules disconnected Yes Repair the ATC HBM CHM circuit for
182. RS PROVIDED IN THE SERVICE PACKAGE OR SPECIFIED IN THE MOPAR PARTS CATALOG FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJURY OR DEATH 3 1 2 CLOCKSPRING The clockspring is mounted on the steering col umn under the steering wheel This assembly con sists of a plastic housing which contains a flat ribbon like electrically conductive tape that winds and unwinds with the steering wheel rotation The clockspring is used to maintain a continuous elec trical circuit between the instrument panel wiring and the driver airbag and the horn The dockspring must be properly centered when it is reinstalled on the steering column following any service proce dure or it could be damaged The clockspring can not be repaired and it must be replaced 3 1 3 PASSENGER AIRBAG The Passenger Airbag is optional equipment When supplied with the proper electrical signal the passenger airbag inflator discharges the gas di GENERAL INFORMATION rectly into the cushion The airbag module cannot be repaired and must be replaced if deployed or in any way damaged WARNING THE PASSENGER AIRBAG MODULE CONTAINS ARGON GAS PRESSURIZED TO 17236 89 Kpa 2500 PSI DO NOT ATTEMPT TO DISMANTLE AN AIRBAG MODULE OR TAMPER WITH ITS INFLATOR DO NOT PUNCTURE INCINERATE OR BRING INTO CONTACT WITH ELECTRICITY DO NOT STORE AT TEMPERATURE EXCEEDING 93 200 F REPLACE AIRBAG SYSTEM COMPONENTS ONLY WITH P
183. RT TO GROUND When Monitored and Set Condition INTRUSION SENSOR 1 CIRCUIT OPEN SHORT TO GROUND When Monitored Whenever the battery voltage is above 10 0 volts and the Security System M odule is connected Set Condition The Security System Module detects the incorrect voltage on the Intrusion Sensor circuit POSSIBLE CAUSES DTC PRESENT FUSE 21N FUSE BLOCK 3 FUSED WIRE OPEN GROUND CIRCUIT OPEN INTRUSION SENSOR 1 SIGNAL SHORTED INTRUSION SENSOR 1 SIGNAL CIRCUIT OPEN INTRUSION SENSOR INTERFACE WIRE SHORTED INTRUSION SENSOR INTERFACE WIRE OPEN INTRUSION SENSOR ACTION APPLICABILITY With the DRBIII9 record and erase All Remove the ignition key Close and lock all doors and set the Vehicle Theft Security System Wait 1 minute Disarm the Vehicle Theft System With the DRBIII read 5 Does the DRBIII9 display the same DTC Yes GoTo 2 No Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 Check Fuse 2 in Fuse Block 3 15 the fuse open Yes Check for a short to ground and replace the fuse Perform BODY VERIFICATION TEST VER 1 No GoTo 3 220 VEHICLE THEFT SECURITY INTRUSION SENSOR LCIRCUIT OPEN SHORT TO GROUND Continued ACTION APPLICABILITY Disconnect the Intrusion Sensor No 1 connector Measure the voltage of the Fused B circuit Is the voltage above 10 0 vol
184. SENGER DOORS LOCK DRIVER DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY RIGHT SLIDING C2 CAV CIRCUIT FUNCTION 3 16YL RD RIGHT SLIDING DOOR LOCK SENSE 4 16DG YL RIGHT SLIDING DOOR UNLOCK SENSE DOSING PUMP CAV CIRCUIT FUNCTION 1 16DG DOSING PUMP CONTROL 2 16BR GROUND ENGINE CONTROL MODULE C1 EXCEPT OBD BLACK CAV CIRCUIT FUNCTION 1 16BK RD FUSED ENGINE CONTROL RELAY OUTPUT 2 3 4 14BR GROUND 5 14BR GROUND 6 14BR GROUND 7 14BK BL FUSED ENGINE CONTROL RELAY OUTPUT 8 14BK BL FUSED ENGINE CONTROL RELAY OUTPUT 9 265 LI R 4 2 915 CONNECTOR PINOUTS BLACK ENGINE CONTROL MODULE 2 EXCEPT OBD R E 2 ENGINE CONTROL MODULE C2 EXCEPT OBD BLACK CAV CIRCUIT FUNCTION 1 2 3 18BR WT HIGH IDLE ON SIGNAL 4 5 6 7 18BR DG KICKDOWN SWITCH SIGNAL 8 9 18BR SENSOR GROUND 10 11 20DG WT CAN C BUS 12 20006 CAN C BUS 1 18BK FUSED IGNITION SWITCH OUTPUT RUN START 14 1806 ACCEL SET SIGNAL 15 16 18YL DECEL SET SIGNAL 17 2006 ENHANCED ACCIDENT REPORT DRIVER 18 19 1880 S C SWITCH 12 VOLT SUPPLY 20 1881 RESUME SIGNAL 21 18BK VERIFICATION SIGNAL 22 18GY OFF SIGNAL 23 24 266 CONNECTOR PINOUTS ENGINE CONTROL MODULE C2 OBD
185. SHORT TO VOLTAGE SKREEM SHORTED ACTION APPLICABILITY Turn the ignition off All Disconnect the Central Timer Module C1 connector Measure the voltage between ground and the RKE Interface circuit 15 there any voltage present Yes GoTo 2 Replace the Central Timer Module Perform BODY VERIFICATION TEST VER 1 Disconnect the Central Timer Module C1 connector Disconnect the SKREEM connector Turn the ignition on Measure the voltage between ground and the RKE Interface circuit 15 there any voltage present Yes Repair the RKE Interface circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 Replace the Sentry Key RemotE Entry Module Perform BODY VERIFICATION TEST VER 1 205 POWER DOOR LOCKS RKE Symptom RKE INTERFACE CIRCUIT SHORT TO VOLTAGE SKREEM When Monitored and Set Condition RKE INTERFACE CIRCUIT SHORT TO VOLTAGE SKREEM When Monitored Whenever the battery voltage is above 10 0 volts and the module is connected Set Condition If the SKREEM monitors a voltage on the Interface circuit for over 30 seconds this code will set POSSIBLE CAUSES DTC PRESENT SENTRY KEY REMOTE ENTRY MODULE SHORT TO VOLTAGE RKE INTERFACE WIRE SHORT TO VOLTAGE CENTRAL TIMER MODULE SHORTED ACTION APPLICABILITY With the DRBIII record and erase All Cycle the ignition switch from ON to OFF to ON With the DRBIII9 read DTC s Turn the ignition off and re
186. SPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH CAUTION DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY THE HEATER PRE TEST ALWAYS PERFORM THE HEATER PRE TEST PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE VALID Turn the ignition off View repair Repair Replace the Cabin H eater Assembly or Heater Booster Assembly in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 92 CABIN Symptom List HEATER IN LOCKOUT MODE HEATER OVERHEATED SUCCESSIVE OVERHEATING Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be HEATER IN LOCKOUT MODE When Monitored and Set Condition HEATER IN LOCKOUT MODE When Monitored During heater activation and operation Set Condition This DTC will set if multiple attempts to start the heater have failed or if successive overheating occurs HEATER OVERHEATED When Monitored After heater activation when the system is in a steady state of operation Set Condition This DTC will set if the Temperature Sensor s resistance or Overheating Sensor s resistance is not within the expected parameters coolant temperature in the heater module exceeds 105 C 221 F SUCCESSIVE OVERHEATING When Monitored After heater activation when the system is in a steady state of operation Set Condition This DTC will set i
187. T VER 1 GoTo 2 Turn the ignition off Disconnect the Radio harness connectors Disconnect the DRBIII9 from the DLC Measure the resistance between ground and the K TCM RADIO circuit 15 the resistance below 5 0 ohms Yes GoTo 3 GoTo 4 Turn the ignition off Disconnect the TCM harness connectors Measure the resistance between ground and the K TCM RADIO circuit 15 the resistance below 5 0 ohms Yes Repair the K TCM RADIO circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 Replace the Transmission Control Module in accordance with the service information Perform BODY VERIFICATION TEST VER 1 118 COMMUNICATION NO RESPONSE FROM RADIO Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the DRBIII from the DLC Disconnect the Radio harness connectors Turn the ignition on Using a 12 volt test light connected to ground probe the K TCM RADIO circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes GoTo 5 GoTo 6 Turn the ignition off Disconnect the TCM harness connectors Turn the ignition on Using a 12 volt test light connected to ground probe the K TCM RADIO circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does
188. T THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition on With the DRBIII in Sensors record the Cabin Heater s or Heater Booster s Operating Voltage NOTE Check connectors Clean repair as necessary Disconnect the Cabin Heater or Heater Booster harness connector Measure the voltage between the Fused B circuit and ground 15 there more than 1 0 volt difference between the Operating Voltage and the used B voltage Yes Replace the Cabin Heater Assembly or Heater Booster Assembly in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 GoTo 4 100 CABIN UNDER VOLTAGE Continued ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL URY OR DEATH Reconnect the Cabin Heater or Heater Booster harness connector Connect a suitable
189. T UNDEPLOYED AIRBAG FACE DOWN ON A HARD SURFACE THE AIRBAG WILL PROPEL INTO THE AIR IF ACCIDENTALLY DEPLOYED Connect the appropriate Load Tool to the Passenger Airbag connector s WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 read the active Airbag Control Module 5 Does the DRBIII9 show PASSENGER SQUIB 1 CIRCUIT SHORT Yes GoTo 3 Replace the Passenger Airbag in accordance with the Service Information Perform AIRBAG VERIFICATION TEST VER 1 WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Load Tool from the Passenger Airbag connector s Disconnect the Airbag Control Module connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool Adapter to the Airbag Control Module connec tor s Measure the resistance between Passenger Squib 1 Line 1 and Line 2 circuits at the Passenger Airbag connector 15 the resistance below ohms Yes Repair Passenger Squib 1 Line 1 circuit short to Passenger Squib 1 Line 2 circuit Perform AIRBAG VERIFICATION TEST VER 1 GoTo 4 WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes rem
190. TC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning vehicle to customer 58 AIRBAG Symptom PASSENGER SOUIB 1CIRCUIT SHORT When Monitored and Set Condition PASSENGER SQUIB 1 CIRCUIT SHORT When Monitored With the ignition on the ACM monitors the resistance between the Passenger Squib 1 circuits Set Condition When the ACM detects low resistance in the Passenger Squib 1 circuits POSSIBLE CAUSES PAB SQUIB 1 CIRCUIT SHORT PAB SQUIB 1LINE 1 SHORT TOLINE 2 ACM PAB SQUIB 1 CIRCUIT SHORT STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on AII NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 5 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery must be disconnected 59 AIRBAG PASSENGER SQUIB 1CIRCUIT SHORT Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI All TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Passenger Airbag connector s NOTE Check connectors Clean and repair as necessary WARNING TO AVOID PERSONAL URY OR DEATH DO NOT PLACE INTAC
191. TER ASSEMBLY OR ANY OF ITS INTERNAL COMPONENTS ALWAYS PERFORM HEATER COMPONENT REPLACEMENT IN ACCORDANCE WITH THE SERVICE INFORMATION FAILURE TO FOLLOW THESE INSTRUCTIONS RESULT IN PERSONAL INJURY OR DEATH CAUTION Always Perform The Heater Pre Test In The Diagnostic Procedures Prior To Performing Any Other Test On The Heater For The Test Result To Be Valid NOTE Do not disconnect the vehicle s battery or the heater s main power supply while the heater is in operation or in run down mode Failure to follow these instructions may result in excess emissions from the heater NOTE Failure to prime the Dosing Pump after draining the fuel line will prevent heater activation during the first attempt to start the unit This may also set a Diagnostic Trouble Code DTC in the control unit s memory Do not perform the Dosing Pump Priming Procedure if an attempt was made to start the heater without priming the Dosing Pump first This will put excess fuel in the heater module and cause smoke to emit from the heater s exhaust pipe when heater activation occurs NOTE Waxed fuel can obstruct the fuel line and reduce flow Check for the appropriate winter grade fuel and replace as necessary The Cabin Heater Assembly and Heater Booster Assembly are supplemental type heaters designed to pre heat the engine s coolant in order to supply the vehide s occupants with heat prior tothe engine GENERAL INFORMATION reaching operating tem
192. TEST VER 1 Disconnect the Siren connector Disconnect the Security System Module C2 connector Measure the resistance between ground and the Siren Signal Control circuit Is the resistance below 5 0 ohms Yes Repair the Siren Signal Control circuit for short to ground Perform BODY VERIFICATION TEST VER 1 Replace Siren Perform BODY VERIFICATION TEST VER 1 238 WINDSHIELD WIPER 8 WASHER Symptom CHECKING THE RAIN SENSOR WIPER OPERATION POSSIBLE CAUSES CHECK THE WIPER MOTOR CIRCUIT CAVITY 2 CHECK THE WIPER MOTOR CIRCUIT CAVITY 5 CHECK THE WIPER MOTOR CIRCUIT CAVITY 511 CHECK THE WIPER MOTOR CIRCUIT CAVITY 6 CHECK THE WIPER MOTOR CIRCUIT CAVITY 611 CHECK WIPER MOTOR GROUND CIRCUIT CHECKING THE 12 VOLT POWER SUPPLY CHECKING THE GROUND CIRCUIT CHECKING THE RAIN SENSOR OPERATION CHECKING WIPER SIGNALS TO THE RAIN SENSOR MODULE RAIN SENSOR RAIN SENSOR CIRCUIT S OPEN RAIN SENSOR CIRCUIT S SHORTED TO GROUND RAIN SENSOR CIRCUIT S SHORTED TO VOLTAGE RAIN SENSOR MODULE RAIN SNSR CKTS SHORTED TOGETHER WIPER MOTOR ACTION APPLICABILITY Turn the ignition on All Monitor the windshield wipers while turning the wiper switch to each of the 4 switch positions OFF INTERMITTENT LOW and HIGH Did the wipers functions properly in each wiper switch position Yes GoTo 2 GoTo 8 NOTE The Rain Sensor is located in the windshield mount of the rear view mirror in the top center of the winds
193. THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors L ook for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the 2 monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related tothe Driver circuits rotatethe steering wheel from stop to stop You have just attempted to simulate the condition that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning vehicle to customer 48 AIRBAG Symptom PASSENGER SEAT BELT TENSIONER CIRCUIT SHORT SSS When Monitored and Set Condition PASSENGER SEAT BELT TENSIONER CIRCUIT SHORT When Monitored With the ignition on the ACM monitors the resistance between the Passenger Seat Belt Tensioner circuits
194. TION 12 BS WARNINGS 22 T M deque ks 12 431 VEHICLE DAMAGE 12 4 3 2 ROAD TESTING A COMPLAINT 12 5 0 6 0 7 0 TABLE OF CONTENTS Continued REQUIRED TOOLS AND EQUIPMENT 13 GLOSSARY OF TERMS tan ee kd man a 13 DIAGNOSTIC INFORMATION AND PROCEDURES 15 AIRBAG AIRBAG WARNING INDICATOR DRIVER HIGH 16 AIRBAG WARNING INDICATOR DRIVER 19 DRIVER SEAT BELT TENSIONER INCORRECT FEEDBACK 22 DRIVER SQUIB 1 INCORRECT 22 INTERNAL eee ee ES ROC t quura ee ee ee ee 22 INTERNAL EC P9 kG GO OPERETUR d MESURE 22 INTERNALS uiid eite dq E E RC ees CREP et sass 22 PASSENGER SEAT BELT TENSIONER INCORRECT 22 PASSENGER SQUIB 1 INCORRECT STORED ENERGY FIRING ER heh k sen 22 STORED ENERGY FIRING 2 mn unes amaan outs Ge oe Sang s 22 DRIVER SEAT BELT TENSIONER CIRCUIT OPEN 5 to RR E ep eas es 24 DRIVER SEAT BELT TENSIONER CIRCUIT SHORT 26 DRIVER SEAT
195. TION TEST VER 1 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery must be disconnected 23 AIRBAG Symptom DRIVER SEAT BELT TENSIONER CIRCUIT OPEN When Monitored and Set Condition DRIVER SEAT BELT TENSIONER CIRCUIT OPEN When Monitored With the ignition on the ACM monitors the resistance of the Driver Seat Belt Tensioner circuits Set Condition The has detected an open circuit or high resistance on the Driver Seat Belt Tensioner circuits POSSIBLE CAUSES DRIVER SEAT BELT TENSIONER CIRCUITS OPEN DRIVER SEAT BELT TENSIONER LINE 1 OR LINE 2 CIRCUIT OPEN ACM DRIVER SEAT BELT TENSIONER CIRCUIT OPEN STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on All NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 5 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery must be disconnected NOTE Ensure the battery is fully charged WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Driver Seat Belt Tensioner connector NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool to the Driv
196. TOR NOT AVAILABLE CONNECTOR NOT AVAILABLE CAV CIRCUIT FUNCTION 3 16YL WT LEFT SLIDING DOOR LOCK SENSE 4 16DG BK LEFT SLIDING DOOR UNLOCK SENSE DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY PASSENGER C1 CAV CIRCUIT FUNCTION 1 16YL BK PASSENGER FRONT DOOR LOCK SENSE 2 16DG BLIWT PASSENGER FRONT DOOR UNLOCK SENSE DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY PASSENGER C2 CAV CIRCUIT FUNCTION 1 16BK RD PASSENGER DOORS UNLOCK DRIVER 2 16BL RD PASSENGER DOORS LOCK DRIVER DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY REAR C1 CAV CIRCUIT FUNCTION 1 16BK RD PASSENGER DOORS UNLOCK DRIVER 2 16BL RD PASSENGER DOORS LOCK DRIVER DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY REAR C2 CAV CIRCUIT FUNCTION 16YL BK CARGO VAN REAR DOOR LOCK SENSE 16DG RD CARGO VAN REAR DOOR UNLOCK SENSE 16YL BK PASSENGER VAN REAR DOOR LOCK SENSE 16DG RD PASSENGER VAN REAR DOOR UNLOCK SENSE 264 CONNECTOR NOT AVAILABLE DOOR LOCK MOTOR AJAR SWITCH ASSEMBLY RIGHT SLIDING C1 CONNECTOR PINOUTS CONNECTOR NOT AVAILABLE DOSING PUMP BLACK ENGINE CONTROL MODULE CIRCUIT FUNCTION 1 16BK RD PASSENGER DOORS UNLOCK DRIVER 2 16BL RD PAS
197. TRUMENT CLUSTER ACTION APPLICABILITY Turn the ignition off All Disconnect the Ambient Temperature Sensor harness connector Turn the ignition on With the DRBIII read DTCs Does the DRBIII9 display Ambient Temperature Sensor Open Short to Battery Yes Replace the Ambient Temperature Sensor Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the Instrument Cluster C1 harness connector Disconnect the Ambient Temperature Sensor harness connector Measure the resistance between ground and theAmbient Temperature Sensor Signal circuit 15 the resistance below 1000 ohms Yes Repair the Ambient Temperature Sensor Signal circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 No GoTo 3 Turn the ignition off Disconnect the Ambient Temperature Sensor harness connector Disconnect the Instrument Cluster C1 harness connector Measure the resistance between the Ambient Temperature Sensor Signal circuit and Ambient Temperature Sensor Signal Return circuit Is the resistance below 1000 ohms Yes Repair the Ambient Temperature Sensor Signal drcuit for a short to the Sensor Return circuit Perform BODY VERIFICATION TEST VER 1 Replace the Instrument Cluster in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 181 INSTRUMENT CLUSTER Symptom FUEL LEVEL SENSOR OPEN SHORT TO BATTERY POSSIBLE CAUSES F
198. UEL LEVEL SENSOR FUEL LEVEL SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE FUEL LEVEL SENSOR SIGNAL RETURN CIRCUIT OPEN FUEL LEVEL SENSOR SIGNAL CIRCUIT OPEN INSTRUMENT CLUSTER ACTION APPLICABILITY Turn the ignition off All Disconnect the Fuel Pump Module harness connector Disconnect the Instrument Cluster C1 harness connector Turn the ignition on Measure the voltage between Fuel Level Sensor Signal circuit and ground Is the voltage above 0 2 volts Yes Repair the Fuel Level Sensor Signal circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Reconnect the Instrument Cluster C1 harness connector Disconnect the Fuel Pump Module harness connector Connect a jumper wire between the Fuel Level Sensor Signal and the Fuel Level Sensor Signal Return circuit Turn the ignition on With the DRBIII read DTCs Does the DRBIII9 display Fuel Level Sensor Open Short to Battery Yes GoTo 3 Replace the Fuel Level Sensor in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Fuel Pump Module harness connector Disconnect the Instrument Cluster C1 harness connector Measure the resistance of the Fuel Level Sensor Signal Return circuit between the Fuel Pump Module harness connector and the Instrument Cluster harness connector Is the resistance above 10 ohms Yes Repair the Fuel
199. UND ACTION APPLICABILITY With the DRBIII record and erase DTC s All Cycle the ignition switch from ON to OFF to ON With the DRBIII read Operate the Door Locks several times while observing the DRBIII2 Wait 10 seconds Does the DRBIII9 display DRIVER DOOR AJ AR INDICATOR CIRCUIT SHORT GROUND Yes GoTo 2 Theconditions that caused this code to set are not present at this time Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Master Door Lock Switch connector Measure the resistance between ground and the Driver Door Ajar Indicator Driver circuit 15 the resistance below 1000 0 ohms Yes GoTo 3 Replace the Master Door Lock Switch Perform BODY VERIFICATION TEST VER 1 196 POWER DOOR LOCKS RKE DRIVER DOOR AJAR INDICATOR DRIVER CIRCUIT SHORT TO GROUND Continued ACTION APPLICABILITY Disconnect the Central Timer Module C1 connector All Disconnect the Master Door Lock Switch connector Measure the resistance between ground and the Driver Door Ajar Indicator Driver circuit Is the resistance below 20000 0 ohms Yes Repair the Driver Door Ajar Indicator Driver wire for a short to ground Perform BODY VERIFICATION TEST VER 1 Replace the Central Timer Module Perform BODY VERIFICATION TEST VER 1
200. VE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALWAYS SWITCH THE HEATER OFF PRIOR TO REFUELING THE VEHICLE FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RE SULT IN PERSONAL INJ URY OR DEATH CAUTION DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY THE HEATER PRE TEST ALWAYS PERFORM THE HEATER PRE TEST PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE VALID Verify that there is more than an 1 8 of a tank of fuel in the vehicle s fuel tank Is there more than an 1 8 of a tank of fuel in the vehide s fuel tank Yes GoTo 2 No Add fuel tothe vehide fuel tank to bring the fuel level above 1 8 of a tank Perform HEATER VERIFICATION TEST VER 1 WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off Inspect the heater s fuel line exterior for restrictions leakage and damage Verify that the heater s fuel line is installed correctly NOTE Waxed fuel can obstruct the fuel line and reduce flow Check for the appropriate
201. VER SQUIB 1 CIRCUIT OPEN Yes GoTo 4 Replace the Clockspring in accordance with the Service Informa tion Perform AIRBAG VERIFICATION TEST VER 1 WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Load Tool from the Clockspring connector s Disconnect the Airbag Control Module connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool Adaptor to the Airbag Control Module connec tor s Measure the resistance of the Driver Squib 1 Line 1 and Line 2 circuits between the ACM Adaptor and the Clockspring connector s 15 the resistance below 1 0 ohm on both circuits Yes GoTo 5 Repair open or high resistance in the Driver Squib 1 Line 1 or Line 2 drcuits Perform AIRBAG VERIFICATION TEST VER 1 34 AIRBAG DRIVER SQUIB 1 CIRCUIT OPEN Continued ACTION APPLICABILITY WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY All TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair Replace the Airbag Control Module in accordance with Service Information Perform AIRBAG VERIFICATION TEST VER 1 With the DRBIII record and erase all from all Airbag modules If eguipped with Passenge
202. VOLT SUPPLY 7 48BK YL K IC ATC HBM CHM 8 16RD YL WT FUSED D RELAY OUTPUT 8 20BL VT D RELAY CONTROL 9 16GY DG RD LAMP DRIVER 10 16BL CABIN HEATER CONTROL 11 16BK BLIWT RECIRCULATED AIR SOLENOID VALVE CONTROL 12 16BL DG AIC COMPRESSOR CLUTCH CONTROL 13 18BR DG EVAPORATOR TEMPERATURE SENSOR SIGNAL 14 15 16BR GROUND 16 18BR GY AIR OUTLET TEMPERATURE SENSOR SIGNAL 17 CAN C BUS 18 18BR BL SENSOR GROUND 19 20BR RD REFRIGERANT PRESSURE SENSOR FEEDBACK 20 2006 CAN C BUS 21 16BK BL DG FUSED IGNITION SWITCH OUTPUT AUTOMATIC TEMPERATURE CONTROL MODULE C2 CAV CIRCUIT FUNCTION 1 14BK VT FAN STAGE 1 RELAY OUTPUT 1 12YL BLOWER MOTOR LOW DRIVER 2 12WT BLOWER MOTOR HIGH DRIVER 12WT BK BLOWER MOTOR M1 DRIVER 4 12YL BK BLOWER MOTOR M2 DRIVER 5 12RD BL FUSED B AUXILIARY HEATER CONTROL CAV CIRCUIT FUNCTION 1 t6GY DG RD LAMP DRIVER 2 3 16RD YL FUSED B 4 5 6 7 CABIN HEATER CONTROL 8 9 10 16BR GROUND BLOWER MOTOR RESISTOR BLOCK CAV CIRCUIT FUNCTION 1 12YL BK BLOWER MOTOR M2 DRIVER 2 t2YL BLOWER MOTOR LOW DRIVER 12WT BK BLOWER MOTOR M1 DRIVER 4 1206 BLOWER MOTOR HIGH DRIVER 259 LI R 4 2 CONNECTOR PINOUTS A BLACK
203. agnosis Please follow the recommendations below when choosing your diagnostic path 1 First make sure the DRBIII9 is communicating with the appropriate modules i e if the DRBIII2 displays a No Response a Bus Signals Open condition you must diagnose that first 2 Read DTC s diagnostic trouble codes with the DRBIIIS 3 If no DTC 5 are present identify the customer complaint 4 Once the DTC or customer complaint is identi fied locate the matching test in the Table of Contents and begin to diagnose the symptom All component location views are in Section 8 0 All connector pinouts in Section 9 0 All sche matics are in Section 10 0 All Charts and Graphs Section 11 0 An placed before the symptom description indi cates a customer complaint without a DTC When repairs are required refer to the appropri ate service information for the proper removal and repair procedure Diagnostic procedures change every year New diagnostic systems may be added carryover sys tems may be enhanced READ THIS MANUAL BEFORE TRYING TO DIAGNOSE A VEHICLE DIAGNOSTIC TROUBLE CODE It is recom mended that you review the entire manual to be come familiar with all the new and changed diag nostic procedures This book reflects many suggested changes from readers of past issues After using this book if you have any comments or suggestions please fill out theform in the back of this book and mail it bac
204. aining view repair Repair Replace the Airbag Control Module in accordance with Service Information Perform AIRBAG VERIFICATION TEST VER 1 60 AIRBAG PASSENGER SQUIB 1 CIRCUIT SHORT Continued ACTION APPLICABILITY With the DRBIII record and erase all DTC s from all Airbag modules All If equipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors Look for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related to the Driver circuits rotate the steering wheel f
205. air Repair ReplacetheAirbag Control Module in accordance with the Service information Perform AIRBAG VERIFICATION TEST VER 1 With the DRBIII record and erase all DTC s from all Airbag modules If equipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors L ook for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the 2 monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related tothe Driver circuits rotatethe steering wheel from stop to stop You have just attempted to simulate the condition that initially set the trouble code m
206. ait one minute and read active codes and if there are none present read the stored codes 7 Note If equipped with Airbag On Off switch read the DTC s in all switch positions 8 Note Read the DTC s in all airbag system related modules 9 If the DRBIII9 shows any active or stored codes return to the Symptom list and follow path specified for that trouble code If no active or stored codes are present the repair is complete Are any DTC s present or is the original condition still present YES Repair is not complete refer to appropriate symptom list NO Repair is complete 244 APPLICABILITY APPLICABILITY All VERIFICATION TESTS Verification Tests Continued BODY VERIFICATION TEST VER 1 APPLICABILITY 1 Disconnect all jumper wires and reconnect all previously disconnected components and All connectors 2 Ensure that all accessories are turned off and the battery is fully charged 3 NOTE Refer to the service information for proper programming procedures if the ABM ACM ATC CTM ECM IC SKREEM SLA or SSM was replaced 4 If the was replaced program all transmitters used with this vehicle 5 NOTE Perform the next 8 steps of this procedure if either diagnosing the Automatic Temperature Control ATC system or if repairs were made to the ATC system of the following criteria must be met in order to successfully run the Function Test 6 With DRBIII9 record and erase
207. ally unlocks after the vehicle was attempted to be locked at least one door is not properly dosed TherearetwoLED indicators in the Master Door Lock Switch Theleft indicator is for the driver door and the right indicator is for all passenger cargo doors These will indicate if a door is ajar or if the doors are locked The door ajar switches are part of the door lock motor and are mounted in the door latch assembly Inside each door lock motor there is a command switch The command switch is operated by the plunger and signals any change in the lock status locked or unlocked Each command switch is wired to the Central Timer Module CTM sometimes referred to as the Central Locking Module If all doors are closed and are unlocked and any door is locked by the key or the interior handle thereby changing the command switch all doors will be locked If one of the door lock motors does not reach the end position after a locking command it will be detected by the CTM command switch not in Locked position and the vehicle will be unlocked 3 5 2 REMOTE KEYLESS ENTRY RKE The SKREEM is a combination of the Remote Keyless Entry Module and the SKIM Sentry Key Immobilizer Module It is located behind the In strument Cluster and has an antenna that goes up GENERAL INFORMATION the A pillar The SKREEM receives radio messages from the RKE transmitter fob and sends com mands via the RKE Interface circuit tothe CTM If the vehicle i
208. ance below 10k ohms Yes Repair the Air Outlet Temperature Sensor Signal circuit for a short to the Ground circuit Perform BODY VERIFICATION TEST VER 1 GoTo 4 136 HEATING amp AIR OUTLET TEMP SENSOR SHORTED LOW ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the Air Outlet Temperature Sensor harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the Air Outlet Temperature Sensor Signal circuit and the Sensor Ground circuit Is the resistance below 10k ohms Yes Repair the Air Outlet Temperature Sensor Signal circuit for a short to the Sensor Ground circuit Perform BODY VERIFICATION TEST VER 1 Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 137 HEATING amp Symptom List ATC FUNCTION TEST COOL FAILURE ATC FUNCTION TEST FAILURE ATC FUNCTION TEST HEAT FAILURE Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be ATC FUNCTION TEST COOL FAILURE When Monitored and Set Condition ATC FUNCTION TEST COOL FAILURE When Monitored With the engine running Set Condition This DTC will set if specific operating criteria are not met when attempting to run the ATC Function Test ATC FUNCTION TEST FAILURE When Monitored With the engine running Set
209. and grounds Clean and repair as necessary Perform HEATER VERIFICATION TEST VER 1 71 CABIN Symptom CIRC PUMP CONTROL OPEN POSSIBLE CAUSES GROUND CIRCUIT OPEN CIRCULATION PUMP RELAY HIGH SIDE CONTROL CIRCUIT OPEN CIRCULATION PUMP RELAY CABIN HEATER CONTROL UNIT ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA AII THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACEMENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH CAUTION DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY THE HEATER PRE TEST ALWAYS PERFORM THE HEATER PRE TEST PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE VALID Turn the ignition off Remove the Circulation Pump Relay from the relay center Measure the resistance between ground and the Ground circuit Circulation Pump Relay connector terminal 85 Is the resistance below 5 0 ohms Yes GoTo 2 Repair the Ground circuit for an open Perform HEATER VERIFICATION TEST VER 1 72 CABIN CIRC PUMP CONTROL OPEN Continued ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALW
210. arness connector Turn the ignition on Using a 12 volt test light connected to ground probe the K ABS Shifter Assembly circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes GoTo 5 GoTo 6 Turn the ignition off Disconnect the Controller Antilock Brake harness connector Turn the ignition on Using a 12 volt test light connected to ground probe the K ABS Shifter Assembly circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes Repair the K ABS Shifter Assembly circuit for a short to voltage Perform NAG1 TRANSMISSION VERIFICATION TEST VER 1 Replace the Controller Antilock Brake in accordance with the service information Perform 1 TRANSMISSION VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Shifter Assembly harness connector Disconnect the DRBIII from the DLC Measure the resistance of the K ABS Shifter Assembly circuit between the Shifter Assembly connector and the DLC Is the resistance below 5 0 ohms Yes Replace the Shifter Assembly in accordance with the Service Information Perform NAG1TRANSMISSION VERIFICATION TEST VER 1 Repair the K ABS Shifter Assembly circuit for an open Perform NAG1 TRANSMISSION VERIFICATION TEST
211. arness connector and the Rain Sensor harness connector 15 the resistance below 10 0 ohms for each measurement Yes GoTo 6 Repair the circuit s that measured above 10 0 ohms for an open Turn the ignition off Disconnect the Rain Sensor harness connector Disconnect the Rain Sensor Module harness connector Measure the resistance between Rain Sensor harness connector cavities 1 and 2 Repeat this step for cavities 1 and 3 cavities 2 and 3 15 the resistance above 1000 ohms for each measurement Yes GoTo 7 Repair the circuit s that measured below 1000 ohms for a short together Turn the ignition off Replace the Rain Sensor in accordance with the Service Information Turn the ignition on Move the Wiper Switch to the Intermittent position Spray or pour water on the Rain Sensor area of the windshield NOTE The Rain Sensor is located in the windshield mount of the rear view mirror in the top center of the windshield Did the wipers activate when water was sprayed poured on the Rain Sensor area of the windshield Yes Replace the original Rain Sensor in accordance with the Service Information Replace the Rain Sensor Module in accordance with the Service Information 240 WINDSHIELD WIPER 8 WASHER CHECKING THE RAIN SENSOR WIPER OPERATION Continued ACTION APPLICABILITY Turn the ignition off NOTE The Rain Sensor Module RSM is mounted above the accelerator pedal assem
212. ase the Cabin Heater or Heater Booster Module s DTCs Start the engine Allow the engine to idle With the DRBIII monitor for Cabin Heater or Heater Booster Module DTCs while performing the following step NOTE Do not disconnect the vehicle s battery or the heater s main power supply while the heater is in operation or in run down mode Failure to follow these instructions can result in excess emissions from the heater during heater operation Switch the Cabin Heater or Heater Booster If necessary allow the heater to run through at least one cycle of operation approximately 10 minutes and then switch the heater off Turn the engine off Does the DRBIII9 display DOSING PUMP HIGH OR OPEN Yes Replace the Dosing Pump in accordance with the Service Infor mation Perform HEATER VERIFICATION TEST VER 1 GoTo 2 81 CABIN DOSING PUMP SHORTED Continued ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION RE PAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off Disconnect the battery in accordance with the Service information NOTE Che
213. ates that the eater Booster Mode ON signal is not present at the heater module 3 4 INSTRUMENT CLUSTER The Instrument Cluster has easy to read instru ments is capable of CAN bus communication and provides a diagnostic function The Instrument Cluster with analog speedometer tachometer fuel and coolant temperature gauges comes in two ver sions e Speedometer with outer miles per hour mph scale and inner kilometers per hour km h scale Coolant temperature is indicated in Fahrenheit for US e Speedometer with outer kilometers per hour km h scale and inner miles per hours mph scale Coolant temperature is indicated in de grees Celsius for Canada Below the speedometer there is a LCD multi function indicator in clear view of the driver Warn ing and indicator lights based on colored light emitting diodes are located in the bottom of the instrument duster with the exception of the turn signal indicator lights ASR warning light and re serve fuel warning light The warning lights for the seat belt usage and parking brake brake fluid level are located in the line above the bottom line The indicator that illuminates up when the parking brake is applied or the brake fluid level is low is different for U S and Canada When the key is turned to the 2nd position in the ignition the function of the following indicator lights is checked automatically High Beam ON Preheating airbag malfunction case of a br
214. aust ventilation sys tem affix the ventilation hose to the heater s ex haust pipe or to the vehiclein such a manor that the end of the ventilation hose remains approximately three inches away from the end of the heater s exhaust pipe When using a non powered exhaust ventilation system affix the ventilation hose directly to the heater s exhaust pipe 3 3 2 3 SYSTEM DIAGNOSTICS CAUTION Always Perform Heater Pre Test In The Diagnostic Procedures Prior To Performing Any Other Test For The Test Result To Be Valid Fault detection is through stored Diagnostic Trouble Codes DTCs DTCs are displayed by the DRBIII2 The heater s control unit will store up to five DTCs in its memory If the control unit detects a new fault in the system one that is not already stored in its memory it will clear the oldest of the five stored DTCs and it will store the new fault s DTC If the control unit detects a reoccurrence of a stored fault it will overwrite that fault s DTC with the most recent occurrence DIAGNOSTIC TIPS SENSOR VALUES Operating Voltage The normal range for the Operating Voltage is from 10 volts to 15 volts The value indicates the voltage at the heater s Fused B terminal Heating Capacity The normal range for the heating capacity is from 0 to 100 The value indicates the momentary output of the auxiliary heater in of the maximum output Coolant Temperature The value indicates the current co
215. before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors Look for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related Run Start circuit Is there any active DTC s present Yes Select appropriate symptom from Symptom List Perform AIRBAG VERIFICATION TEST VER 1 No problem found at this time Erase all codes before returning vehicle to customer Perform AIRBAG VERIFICATION TEST VER 1 46 AIRBAG Symptom PASSENGER SEAT BELT TENSIONER CIRCUIT OPEN When Monitored and Set Condition PASSENGER SEAT BELT TENSIONER CIRCUIT OPEN When Monitored With on the ACM monitors the resistance of the Passenger Seat Belt Tensioner circuits Set Condition When theACM detects an open circuit or high resistance the Passenge
216. bly Disconnect the Rain Sensor Module harness connector Turn the ignition on Usinga 12 volt test light connected to ground check the Battery Supply circuit at the Rain Sensor Module harness connector cavity A 1 Does the test light illuminate brightly Yes GoTo 9 No Repair the open 12 Volt Power Supply circuit Turn the ignition off Disconnect the Rain Sensor Module harness connector Using a 12 test light connected to 12 volts check the Ground circuit at the Rain Sensor Module harness connector cavity C 1 Does the test light illuminate brightly Yes GoTo 10 Repair the open Ground circuit correct wiper switch voltage signals to the Rain Sensor Module when the wiper switch is adjusted to each of the four positions Do voltage readings at the RSM connector correspond correctly to voltages specified in the chart Yes GoTo 11 Refer to the Rain Sensor Wiper System Schematic in Charts and Graphs to diagnose base wiper system problem with the circuit s that did not have the correct corresponding voltage to the chart Turn the ignition off Disconnect the wiper motor harness connector Using 12 volt test light connected to 12 volts check the Ground circuit at the Wiper Motor harness connector Does the test light illuminate brightly Yes GoTo 12 Turn the ignition off All Disconnect the Rain Sensor Module harness connector Turn the ignition on Refer to the Wiper Washer Sw
217. ce below 7500 0 ohms for over 1 minute this code will set POSSIBLE CAUSES DTC PRESENT CENTRAL TIMER MODULE SHORTED RKE INTERFACE WIRE SHORTED SKREEM SHORTED ACTION APPLICABILITY With the DRBIII record and erase All Cycle the ignition switch from ON to OFF to ON With the DRBIII read UsingtheRKE transmitter operatethe Door Locks several times whileobserving the DRBIII Wait 10 seconds Does the DRBIII9 display INTERFACE CIRCUIT SHORT TO GROUND Yes GoTo 2 Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Using the RKE transmitter operate the door locks several times and re check for any DTC s Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Central Timer Module C1 connector Measure the resistance between ground and the RKE Interface circuit 15 the resistance below 8500 0 ohms Yes GoTo 3 Replace the Central Timer Module Perform BODY VERIFICATION TEST VER 1 201 POWER DOOR LOCKS RKE INTERFACE CIRCUIT SHORT TO GROUND Continued ACTION APPLICABILITY Disconnect the Central Timer Module C1 connector Disconnect the SKREEM connector Measure the resistance between ground and the RKE Interface circuit Is the resistance below 20000 0 ohms Yes Repair the RKE Interface circuit for a short to ground Perform BODY VERIFICATION
218. ce the Automatic Temperature Control ATC in accordance with the Service I nformation Perform BODY VERIFICATION TEST VER 1 170 HEATING amp Symptom REFRIG PRESS SENSOR HIGH OR OPEN ACTIVE POSSIBLE CAUSES 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE REFRIGERANT PRESSURE SENSOR FEEDBACK CIRCUIT SHORTED TO VOLTAGE 5 VOLT SUPPLY CKT SHORTED TO REFRIGERANT PRESSURE SENSOR FEEDBACK CKT AUTOMATIC TEMPERATURE CONTROL ATC 5 VOLT SUPPLY CIRCUIT OPEN REFRIGERANT PRESSURE SENSOR FEEDBACK CIRCUIT OPEN SENSOR GROUND CIRCUIT OPEN REFRIGERANT PRESSURE SENSOR ACTION APPLICABILITY Turn the ignition off All NOTE Check connectors Clean repair as necessary Disconnect the Automatic Temperature Control ATC C1 harness connector Turn the ignition on Measure the voltage of the 5 Volt Supply circuit Is the voltage above 0 2 volts Yes Repair the 5 Volt Supply circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Automatic Temperature Control ATC C1 harness connector Turn the ignition on Measure the voltage of the Refrigerant Pressure Sensor Feedback circuit Is the voltage above 0 2 volts Yes Repair the Refrigerant Pressure Sensor Feedback circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 No GoTo 3 Turn the ignition off NOTE Check connecto
219. ck connectors Clean repair as necessary Disconnect the Cabin Heater or Heater Booster harness connector NOTE Check connectors Clean repair as necessary Disconnect the Dosing Pump harness connector Measure the resistance between the Dosing Pump Control circuit and the Ground circuit in the Dosing Pump harness connector 15 the resistance below ohms Yes Repair the Dosing Pump Control circuit for a short to the Ground circuit Perform HEATER VERIFICATION TEST VER 1 GoTo 3 WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off Disconnect the battery in accordance with the Service information NOTE Check connectors Clean repair as necessary Disconnect the Cabin Heater or Heater Booster harness connector NOTE Check connectors Clean repair as necessary Disconnect the Dosing Pump harness connector Measure the resistance between ground and the Dosing Pump Control circuit 15 the resistance below ohms Yes Repair the Dosing Pump Control circuit for a short to ground Perform HEATER VERIFICATION TEST VER 1
220. cordance with the service information Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the CTM harness connectors Disconnect the DRBIII9 from the DLC Measure the resistance of the K CTM SSM circuit between the CTM connector and the DLC 15 the resistance below 5 0 ohms Yes Replacethe Central Timer Module in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Repair the K CTM SSM circuit for an open Perform BODY VERIFICATION TEST VER 1 109 COMMUNICATION Symptom NO RESPONSE FROM CONTROLLER ANTILOCK BRAKE POSSIBLE CAUSES CHECK POWERS AND GROUNDS TO THE CONTROLLER ANTILOCK BRAKE SHIFTER ASSEMBLY K ABS SHIFTER ASSEMBLY CIRCUIT SHORTED TO GROUND SHIFTER ASSEMBLY K ABS SHIFTER ASSEMBLY CIRCUIT SHORTED TO VOLTAGE K ABS SHIFTER ASSEMBLY CIRCUIT OPEN CONTROLLER ANTILOCK BRAKE ACTION APPLICABILITY Turn the ignition off All Disconnect the Controller Antilock Brake harness connector Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located in the service information to help isolate an open or shorted condition Repair as necessary Perform ABS VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the CAB harness connector Disconnect the DRBIII9 from the DLC Measure the resistance between ground and the K ABS Shifter Assembly circuit Is the resistance belo
221. cordance with the Service Information Perform BODY VERIFICATION TEST VER 1 No Light Illuminates With REST Off GoTo 2 No Light Will Not Illuminate GoTo 3 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Circulation Pump harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Turn the ignition on Measure the voltage of the Circulation Pump Control circuit Is the voltage above 0 2 volts Yes Repair theCirculation Pump Control circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 152 HEATING amp CIRC PUMP CONTROL HIGH OR OPEN ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All NOTE Check connectors Clean repair as necessary Disconnect the Automatic Temperature Control ATC C1 harness connector Disconnect the Circulation Pump harness connector Measure the resistance of the Circulation Pump Control circuit between the Automatic Temperature Control ATC C1 harness connector and the Circulation Pump harness connector Is the resistance below 5 0 ohms Yes GoTo 4 Repair the Circulation Pump Control circuit for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off NOTE Check connectors Clean repair
222. d codes If more than one code exists diagnostic priority should be given to the active codes Each diagnostic trouble code is diagnosed by following a specific testing procedure The diagnos tic test procedures contain step by step instructions for determining the cause of the trouble codes It is not necessary to perform all of the tests in this book to diagnose an individual code Always begin by reading the diagnostic trouble codes with the DRBIII This will direct you to the specific test s that must be performed In certain test procedures within this manual diagnostic trouble codes are used as a diagnostic tool 3 1 6 1 ACTIVE CODES If the lamp remains on there could be an active DTC in the system The code becomes active as soon as the malfunction is detected or key on whichever occurs first An active trouble code indicates an on going malfunction This means that the defect is currently there every time the airbag control mod ule checks that circuit or component Some DTCs Internal Module and squib DTCs will keep the indicator illuminated even if they are no longer active If the lamp is on and no active codes are present cycling the ignition switch off and then on will refresh the lamp state It is impossible to erase an active code 3 1 6 2 STORED CODES Airbag codes are automatically stored in the 5 memory as soon as the malfunction is de tected A stored code indicates there was an active code present at s
223. disconnecting a module Replace the module that caused the voltage reading to drop after disconnecting it Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Instrument Cluster harness connectors Disconnect the negative battery cable Measure the resistance between ground and the CAN C Bus circuit Measure the resistance between ground and the CAN C Bus circuit Is the resistance below 50 0 ohms on either circuit Yes 4 No GoTo 5 Turn the ignition off Disconnect the negative battery cable Using an ohmmeter connect end to the CAN Bus drcuit that previously measured below 50 0 ohms and the other end to ground NOTE Refer to the wiring diagrams in the service information to help determine which modules are connected to the CAN Bus Disconnect a module that is connected to the CAN Bus Monitor and note the ohmmeter reading Repeat this procedure until either the resistance reading goes above 50 0 ohms or all modules that are connected to the CAN Bus are disconnected and the resistance reading remains below 50 0 ohms Then proceed to the conclusion question What is the outcome 50 0 ohms w all modules disconnected Repair the CAN C Bus circuit or the CAN C Bus circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 250 0 ohms after disconnecting a module Replace the module that caused the resistance reading to increase after disconnecting it
224. e Driver Cylinder Lock Sense circuit Is the resistance below 400 0 ohms Replace the Driver Cylinder Lock Switch Perform BODY VERIFICATION TEST VER 1 Yes GoTo 3 212 VEHICLE THEFT SECURITY DRIVER CYLINDER LOCK SWITCH CIRCUIT SHORT TO GROUND Continued ACTION APPLICABILITY Turn the ignition off AII Disconnect the Driver Cylinder Lock Switch connector Disconnect the Security System Module Measurethe resistance between ground and the Driver Cylinder Lock Sense circuit Is the resistance below 400 0 ohms Yes Repair the Driver Cylinder Lock Sense circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 Replace the Security System Module Perform BODY VERIFICATION TEST VER 1 213 VEHICLE THEFT SECURITY Symptom DRIVER CYLINDER UNLOCK SWITCH CIRCUIT SHORT TO GROUND When Monitored and Set Condition DRIVER CYLINDER UNLOCK SWITCH CIRCUIT SHORT TO GROUND When Monitored Whenever the battery voltage is above 10 0 volts and the Security System Module is connected Set Condition If the Driver Cylinder Unlock Circuit is closed to ground for over 30 seconds this code will set POSSIBLE CAUSES DTC PRESENT DRIVER CYLINDER LOCK SWITCH SHORTED DRIVER CYLINDER UNLOCK SENSE CIRCUIT SHORT TO GROUND SECURITY SYSTEM MODULE SHORT TO GROUND ACTION APPLICABILITY With the DRBIII record and erase DTC s All Cyde the ignition switch from ON to OFF to ON With the DRBIII
225. e Security System Module is connected Set Condition If the internal module test fails this DTC will set TOWING INCLINATION SENSOR BEYOND LIMITS When Monitored Whenever the battery voltage is above 10 0 volts and the Security System Module is connected Set Condition If the internal module test fails this DTC will set TOWING INCLINATION SENSOR VALUE IS INVALID When Monitored Whenever the battery voltage is above 10 0 volts and the Security System Module is connected Set Condition If the internal module test fails this DTC will set TOWING INCLINATION SENSOR VALUE IS MISSING When Monitored Whenever the battery voltage is above 10 0 volts and the Security System Module is connected Set Condition If the internal module test fails this DTC will set POSSIBLE CAUSES DTC PRESENT SECURITY SYSTEM MODULE FAILURE 218 VEHICLE THEFT SECURITY INTERNAL ERROR SSM Continued ACTION APPLICABILITY With the DRBIIIS record and erase All Cycle the ignition switch from ON to OFF to Wait 10 seconds With the DRBIII read 5 Does the DRBIII9 display the same DTC Yes Replace the Security System Module Perform BODY VERIFICATION TEST VER 1 Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 219 VEHICLE THEFT SECURITY Symptom INTRUSION SENSOR 1 CIRCUIT OPEN SHO
226. e resistance between ground and the K SKREEM circuit Is the resistance below 5 0 ohms Yes Repair the K SKREEM circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 3 Turn the ignition off Disconnect the DRBIII from the DLC Disconnect the SKREEM harness connector Turn the ignition on Using a 12 volt test light connected to ground probe the K SKREEM circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes Repair the K SKREEM circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 GoTo 4 122 COMMUNICATION NO RESPONSE FROM SENTRY KEY REMOTE ENTRY MODULE Continued ACTION APPLICABILITY Turn the ignition off AII Disconnect the SKREEM harness connector Disconnect the DRBIII2 from the DLC Measure the resistance of the K SKREEM circuit between the SKREEM connector and the DLC 15 the resistance below 5 0 ohms Yes Replace and program the Sentry Key Remote Entry Module accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Repair the K SKREEM circuit for an open Perform BODY VERIFICATION TEST VER 1 123 COMMUNICATION Symptom NO RESPONSE FROM SHIFTER ASSEMBLY POSSIBLE CAUSES CHECK POWERS AND GROUNDS TO THE SHIFTER ASSEMBLY CONTROLLER ANTILOCK BRAKE K ABS SHIFTER ASSEMBLY
227. echnical Service Bulletins TSBs and return to the Symptom List If there are no DTCs the repair was successful and is now complete Are any DTCs or symptoms remaining Yes Repair is not complete refer to appropriate symptom Repair is complete 247 NOTES 248 COMPONENT LOCATIONS 8 0 COMPONENT LOCATIONS 8 1 AIRBAG SYSTEM 12mZ207300 53 1 PASSENGER AIRBAG OPTIONAL 2 DRIVER AIRBAG 3 AIRBAG CONTROL MODULE 4 SEAT BELT TENSIONER DRIVER SIDE STANDARD PASSENGER SIDE OPTIONAL WITH PASSENGER AIRBAG ONLY 8 2 AIRBAG CONTROL MODULE L T 5 10 1 DRIVER SEAT RISER 2 ACM COVER 3 ACM 8 3 DRIVER AIRBAG SQUIB 810fa015 AIRBAG SQUIB CONNECTOR DRIVER AIRBAG SCREW 2 STEERING WHEEL 81018064 RON 249 COMPONENT LOCATIONS 8 4 CLOCKSPRING L 3 CLOCKSPRING C1 8 C2 CONNECTORS S 4 SRS INDICATOR 810fa02d 8 5 SEAT BELT TENSIONER DRIVER AND PASSENGER 1 RETRACTOR 2 CONNECTOR SEATBELT TENSIONER 3 SCREW 1 STEERING WHEEL 4 GUIDE 2 INSTRUMENT CLUSTER un 3 CONNECTOR C1 amp C2 5 B PILLAR 21064097 810 11 8 6 HEATING 8 8 6 1 AUTOMATIC TEMPERATURE CONTROL SYSTEM COMPONENTS BLOWER MOTOR RESISTOR BLOCK INLINE AT
228. ected control module can send and receive information Transmission of data takes place re dundantly via both circuits The data bus levels are mirrored meaning that if the binary level on one circuit is 0 the other circuit transmits binary level 1 and vice versa The two line concept is used for two reasons for fault identification and as a safety concept If a voltage peak occurs on just one circuit the receivers can identify this as a fault and ignore the voltage peak If a short circuit or interruption occurs on one of the two CAN circuits a software hardware linked safety concept allows switching to a single line operation The defective CAN circuit is shut down A specific data protocol controls how and when the participants can send and receive NOTE It is important to note the CAN Bus circuits are used for communication only and is way connected to the K Lines The following modules that use the CAN Bus on this vehicle are Automatic Temperature Control ATC e Controller Antilock Brake CAB e Engine Control Module Instrument Cluster 1 Sentry Key Remote Entry Module SKREEM Shifter Assembly SA Transmission Control Module TCM GENERAL INFORMATION 3 3 HEATING amp A C SYSTEM 3 3 1 AUTOMATIC TEMPERATURE CONTROL ATC 3 3 1 1 SYSTEM CONTROLS The ATC Module e is fully addressable with the DRBIII e DRBIII communicates with the M
229. ed or the rear courtesy lamps control circuit is grounded for over 30 minutes this code will set POSSIBLE CAUSES DTC PRESENT SLIDING DOOR J AMB SWITCH SHORTED REAR DOOR J AMB SWITCH SHORTED SECURITY SYSTEM MODULE SHORTED REAR COURTESY LAMPS CONTROL SHORT TO GROUND ACTION APPLICABILITY NOTE Ensure courtesy lamp switches operate properly before proceed All ing NOTE If this code is active the rear courtesy lamps will remain on with all the doors closed With the DRBIII record and erase Cycle the ignition switch from ON to OFF toON With the DRBIII2 read Open and close the sliding and rear doors several times while observing the DRBI11 Wait 10 seconds Does the DRBIII display REAR OR SLIDING DOOR J AMB SWITCH CIRCUIT SHORT TO GROUND Yes GoTo 2 No The conditions that caused this code to set are not present at this time Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Right and then the Left if equipped Sliding Door J amb Switch connector Observe the courtesy lamps Did the courtesy lamps go off when one of the switches was disconnected Yes Replace the Sliding Door amb Switch Perform BODY VERIFICATION TEST VER 1 No GoTo 3 229 VEHICLE THEFT SECURITY REAR OR SLIDING DOOR J AMB SWITCH CIRCUIT SHORT TO GROUND
230. ed with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors Look for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related to the Driver circuits rotate the steering wheel from stop to stop You have just attempted to simulate the condition that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning vehicle to customer 53 AIRBAG Symptom P
231. en the Cabin Heater Control circuit and the Sensor Ground circuit in the Automatic Temperature Control ATC C1 harness connector 15 the resistance below 30k ohms Yes Repair the Cabin Heater Control circuit for a short to the Sensor Ground circuit Perform BODY VERIFICATION TEST VER 1 Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 151 HEATING amp Symptom CIRC PUMP CONTROL HIGH OR OPEN ACTIVE POSSIBLE CAUSES CIRCULATION PUMP CIRCULATION PUMP CONTROL CIRCUIT SHORTED TO VOLTAGE AUTOMATIC TEMPERATURE CONTROL ATC CIRCULATION PUMP CONTROL CIRCUIT OPEN GROUND CIRCUIT OPEN AUTOMATIC TEMPERATURE CONTROL ATC ACTION APPLICABILITY Turn the ignition off All Press the Residual Engine Heat Utilization REST switch off NOTE Check connectors Clean repair as necessary Disconnect the Circulation Pump harness connector Connect a 12 volt test light between the Circulation Pump Control circuit and the Ground circuit in the Circulation Pump harness connector The test light should operate as follows With the Residual Engine Heat Utilization REST switch off the test light should not illuminate Press the Residual Engine Heat Utilization REST switch on The test light should illuminate brightly Does the test light function as specified Yes Light Only Illuminates With REST Replace the Circulation Pump in ac
232. enger Seat Belt Tensioner Line 2 BR PASSENGER i 7 Passenger Seat Belt Tensioner Line 1 TENSIONER INSTRUMENT Fused Ignition Switch Output RUN START 200 4 Ps FUSE BLOCK NO 1 YL Airbag Warning Indicator Driver 16 INSTRUMENT CLUSTER BK RD K MV DATA 13 LINK CONNECTOR DG CLOCKSPRING C2 DG Driver Airbag Squib 1 Line 2 Driver Airbag Squib 1 Line 2 DRIVER VT VT AIRBAG Driver Airbag Squib 1 Line 1 Driver Airbag Squib 1 Line 1 SQUIB 1 BL DG BL DG Passenger Airbag Squib 1 Line 2 Passenger Airbag Squib 1 Line 2 5 PASSENGER C BR DG BR DG AIRBAG H Passenger Airbag Squib 1 Line 1 Passenger Airbag Sguib 1 Line 1 SQUIB 1 E M A T DG CENTRAL Enhanced Accident Report Driver 5220 11 MODULE D BR Ground DG Enhanced Accident ENGINE BR a Report Driver 17 CONTROL G Ground MODULE R 8101995 M S 289 SCHEMATIC DIAGRAMS 10 2 COMMUNICATION 10 2 1 COMMUNICATION K LINES CENTRAL GY DG TIMER DG WT BL K CTM SSM YL TRANSMISSION MODULE C1 12 RADIO C1 A2 CONTROL BK RD K ACM CTM MODULE BL K TCM RADIO SHIFTER BUDG ASSEMBLY K ABS SHIFTER ASSEMBLY CONTROLLER ANTILOCK BL BK BRAKE jo CAB ENGINE BL YL CONTROL C2 84 MODULE Pau ECM OBD
233. enter Measure the resistance between ground and the Ground circuit in the relay center A C Auxiliary Fan Relay connector terminal 85 Is the resistance below 5 0 ohms Yes GoTo 3 Repair the Ground circuit for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off NOTE Check connectors Clean repair as necessary Remove the A C Auxiliary Fan Relay from the relay center Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance of the A C Auxiliary Fan Relay High Side Control circuit between the Automatic Temperature Control C1 harness connector and the relay center A C Auxiliary Fan Relay connector terminal 86 Is the resistance below 5 0 ohms Yes GoTo 4 No Repair the A C Auxiliary Fan Relay High Side Control circuit for an open Perform BODY VERIFICATION TEST VER 1 140 HEATING amp AUX RELAY CONTROL HIGH OR OPEN ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All NOTE Check connectors Clean repair as necessary Reconnect the Automatic Temperature Control ATC C1 harness connector Install a substitute relay in place of the A C Auxiliary Fan Relay Turn the ignition on With the DRBIII9 erase Automatic Temperature Control DTCs Turn the ignition off wait 5 seconds then turn the ignition on With the DRBIII9 read Automatic Temperature Control DTCs Does the DRBIII9 display AUX
234. er Seat Belt Tensioner connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION ON THEN RECONNECT THE BATTERY With the DRBIII2 read active Airbag Control Module DTC s Does the DRBIII9 display DRIVER SBT CIRCUIT OPEN Yes GoTo 3 No Replace Driver Seat Belt Tensioner in accordance with the Service Information Perform AIRBAG VERIFICATION TEST VER 1 24 AIRBAG DRIVER SEAT BELT TENSIONER CIRCUIT OPEN Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION All OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Load Tool from the Driver Seat Belt Tensioner connector Disconnect the Airbag Control Module Connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool ACM Adaptor to the Airbag Control Module connector s Measure the resistance of the Driver SBT Line 1 and Line 2 circuits between the Load Tool Adapter and the Driver SBT connector 15 the resistance below 1 0 ohms on both circuit Yes GoTo 4 No Repair open or high resistancein Driver Seat Belt Tensioner Line 1 Line 2 circuits Perform AIRBAG VERIFICATION TEST VER 1 WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view rep
235. essage Did the DTC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning vehicle to customer 25 AIRBAG Symptom DRIVER SEAT BELT TENSIONER CIRCUIT SHORT E When Monitored and Set Condition DRIVER SEAT BELT TENSIONER CIRCUIT SHORT When Monitored With the ignition on the ACM monitors the resistance of the Driver Seat Belt Tensioner circuits Set Condition The ACM has detected low resistance in the Driver Seat Belt Tensioner circuits POSSIBLE CAUSES DRIVER SEAT BELT TENSIONER SHORT DRIVER SEAT BELT TENSIONER LINE 1 SHORT TO LINE 2 ACM DRIVER SEAT BELT TENSIONER CIRCUIT SHORT STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on All NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 5 NOTE When reconnecting airbag system components the Ignition must be turned off and the Battery must be disconnected WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Driver Seat Belt Tensioner connector NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool to the Driver Seat Belt Tensioner connect
236. et if the Automatic Temperature Control ATC fails to receive all messages from the Instrument Cluster POSSIBLE CAUSES CHECK FOR ACTIVE AUTOMATIC TEMPERATURE CONTROL ATC DTCS INTERMITTENT CONDITION ACTION APPLICABILITY NOTE AII of the following criteria must be met in order to successfully run the Function Test Place the shift lever in Park Turn the ignition on With the DRBIII record and erase ATC Start the engine Allow the engine to reach normal operating temperature Set the blower to high speed Press the Air Conditioning switch On With the DRBIIIS verify that the ambient temperature is above 59 F 15 the refrigerant pressure is between 29 and 348 PSI 2 and 24 bar the evaporator temperature is above 36 5 F 2 5 C and the coolant temperature is above 158 F 70 C With the DRBIII9 in Automatic Temperature Control ATC select System Tests and select ATC Function Test When the ATC Function Test is complete proceed as follows With the DRBIII9 read the active ATC DTCs Does the DRBIII9 display any DTCs Yes Return to the Heating amp A C Symptom List and choose the symptom s Perform BODY VERIFICATION TEST VER 1 Using the wiring diagram schematic as a guide inspect the wiring and connectors related to the circuit s that caused the original DTC s to set Perform BODY VERIFICATION TEST VER 1 131 HEATING amp Symptom A C COMPRESSOR CONTROL
237. f successive overheating occurs POSSIBLE CAUSES CABIN HEATER ASSEMBLY OR HEATER BOOSTER ASSEMBLY 5 COOLANT HOSES RESTRICTED LEAKING DAMAGED ENGINE S COOLING SYSTEM FAULT CABIN HEATER OR HEATER BOOSTER CONTROL UNIT HEATER OVERHEATED SUCCESSIVE OVERHEATING CLEARED ADDITIONAL DTC S PRESENT 93 CABIN HEATER IN LOCKOUT MODE Continued ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION RE PAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH CAUTION DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY THE HEATER PRE TEST ALWAYS PERFORM THE HEATER PRE TEST PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE VALID Turn the ignition off NOTE If thereis an internal leak in the heater a continuous loud chunking or grinding noise may have been heard coming from the assembly during the Pre test Check for engine coolant continuously flowing out of the heater s exhaust pipe Is engine coolant coming out of the heater s exhaust pipe Yes Replace the Cabin Heater Assembly or Heater Booster Assembly in accordance with the Service Information Perform HEATE
238. fan is operational A status of OFF indicates that the auxiliary fan is not operational The Auxiliary Fan normally oper ates when refrigerant head pressure exceeds 290 PSI and coolant temperature exceeds 221 F In the event of a CAN Bus communication failure 257 F is displayed for coolant temperature in Sensors and the Auxiliary Fan will run continuously Light PB CTRL Module This input displays a status of Bright for positive dimmer switch operation and Dimmed for nega tive dimmer switch operation the event of a CAN Bus communication failure Bright is displayed 3 3 2 CABIN HEATER MODULE CHM 8 HEATER BOOSTER MODULE HBM 3 3 2 1 SYSTEM DESCRIPTION WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE HEATER S EXHAUST WHEN OPERATING THE HEATER REFER TO VENTING THE HEATER S EXHAUST BELOW FOR PROPER EXHAUST VENTING INSTRUCTIONS FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJURY OR DEATH GENERAL INFORMATION WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PERFORMING A COMPONENT INSPECTION REPAIR REPLACEMENT FAILURE TO FOLLOW THESE INSTRUCTIONS RESULT IN PERSONAL INJURY OR DEATH WARNING ALWAYS DISCONNECT THE VEHICLE S BATTERY PRIOR TO PERFORMING ANY TYPE OF WORK ON THE HEATER ASSEMBLY FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJURY OR DEATH WARNING NEVER ATTEMPT TO REPAIR THE HEA
239. g Control Module connec tor s Measure the resistance between the Driver Squib 1 Line 1 and Line 2 at the Clockspring connector Is the resistance below 10K ohms Yes Repair the Driver Squib 1 Line 1 circuit shorted to Driver Squib 1 Line 2 circuit Perform AIRBAG VERIFICATION TEST VER 1 No GoTo 5 37 AIRBAG DRIVER SQUIB 1 CIRCUIT SHORT Continued ACTION APPLICABILITY WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY AII TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair Replace the Airbag Control Module in accordance with Service Information Perform AIRBAG VERIFICATION TEST VER 1 With the DRBIII record and erase all from all Airbag modules If eguipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors Look for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifyin
240. g a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related to the Driver circuits rotate the steering wheel from stop to stop You have just attempted to simulate the condition that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning vehicle to customer 38 AIRBAG Symptom DRIVER SOUIB 1 SHORT TO BATTERY E When Monitored and Set Condition DRIVER SQUIB 1 SHORT TO BATTERY When Monitored With the ignition on theACM monitors the voltage of the Driver Squib 1 circuits Set Condition ACM has detected high voltage on the Driver Squib 1 circuits POSSIBLE CAUSES DRIVER AIRBAG SQUIB 1 SHORT TO BATTERY CLOCKSPRING DRIVER SQUIB 1 SHORT TO BATTERY DRIVER SQUIB 1 LINE 1 LINE 2 SHORT TO BATTERY ACM DRIVER SQUIB 1 SHORT TO BATTERY STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on
241. g connector s NOTE Check connectors Clean and repair as necessary WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH Connect the appropriate Load Tool to the Passenger Airbag connector s WARNING TO AVOID PERSONAL URY OR DEATH THE IGNITION THEN RECONNECT THE BATTERY With the DRBIII read the active Airbag Control Module 5 Does the DRBIII9 show PASSENGER SQUIB 1 CIRCUIT SHORT TO BATTERY Yes GoTo 3 Replace Passenger Airbag in accordance with the Service nfor mation Perform AIRBAG VERIFICATION TEST VER 1 WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Load Tool from the Passenger Airbag connector s Disconnect the Airbag Control Module connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool Adaptor to the Airbag Control Module connec tor s WARNING AVOID PERSONAL INJ URY OR DEATH TURN IGNITION ON THEN RECONNECT THE BATTERY Measure the voltage on the Passenger Squib 1 Line 1 and Line 2 circuits between the Passenger Airbag connector and ground 15 there any voltage present Yes Repair Passenger Squib 1 Line 1 or Line 2 circuit short to battery Perform AIRBAG VERIFICATION TEST V
242. gnal wire for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 6 Yes GoTo 7 Repair the Intrusion Sensor 3 Signal wire for an open Perform BODY VERIFICATION TEST VER 1 Disconnect the Intrusion Sensor No connector Disconnect the Security System Module C2 connector Measure the resistance between ground and the Intrusion Sensor Interface circuit Is the resistance below 5 0 ohms Yes Repair the Intrusion Sensor Interface circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 8 Disconnect the Intrusion Sensor No 3 connector Disconnect the Security System Module C2 connector Measure the resistance of the ntrusion Sensor Interface circuit between the SSM C2 connector and the Intrusion Sensor No 3 connector 15 the resistance below 5 0 ohms Yes Replace the Intrusion Sensor Perform BODY VERIFICATION TEST VER 1 Repair the Intrusion Sensor Interface circuit for an open Perform BODY VERIFICATION TEST VER 1 Disconnect the Intrusion Sensor No 3 connector All Disconnect the Security System Module C2 connector Measure the resistance of the Intrusion Sensor 3 Signal circuit between the SSM C2 connector and the Intrusion Sensor No 3 connector 15 the resistance below 5 0 ohms 227 VEHICLE THEFT SECURITY Symptom INTRUSION SENSOR 3 GROUND CIRCUIT OPEN When Monitored and Set Condition INTRUSION SENSOR 3 GROUND CIRCUIT OPEN
243. gnition off All NOTE Check connectors Clean repair as necessary Disconnect the Air Outlet Temperature Sensor harness connector Turn the ignition on While back probing measure the voltage between theAir Outlet Temperature Sensor Signal circuit and the Sensor Ground circuit 15 the voltage above 5 3 volts Yes GoTo 2 GoTo 3 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Air Outlet Temperature Sensor harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Turn the ignition on Measure the voltage of the Air Outlet Temperature Sensor Signal circuit Is the voltage above 0 2 volts Yes Repair the Air Outlet Temperature Sensor Signal circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Air Outlet Temperature Sensor harness connector Turn the ignition on While back probing measure the voltage between theAir Outlet Temperature Sensor Signal circuit and Sensor Ground circuit in the Automatic Temperature Control ATC C1 harness connector 15 the voltage above 4 5 volts Yes GoTo 4 Replace the Automatic Temperature Control ATC in accordance with the Service Information
244. he D Relay The D Relay is controlled by the Instrument Cluster which receives a command from the ECM that the engine is running This relay supplies power to the CTM for auto locking the daytime running lamps and the rear window defogger 3 5 4 ACCIDENT RESPONSE The CTM is hardwired to the Airbag Control Module through the Enhanced Accident Report Driver circuit Anytime the vehicle airbags are deployed the CTM will unlock all doors and a Crash DTC will be stored in memory The door locks will be inoperative until that code 15 cleared If the vehicle is severly jarred but not enough to deploy the airbags it is possible that the DTC could be set and therefore the door locks would be inop erable Whenever the door locks are not opera tional usethe and check If the code ACM has unlocked the doors appears use the DRBIII and erase it 3 6 VEHICLE THEFT SECURITY SYSTEM VTSS The Security System Module SSM is located under the driver s seat The SSM communicates with the DRBIII over the K line If equipped the Vehicle Theft Security System will monitor the following door jamb switches hood ajar switch ignition switch interior of the vehicle for movement longitudinal and transverse movement of the vehicle rear defogger grids for glass breakage trailer connector To arm the system the hood and all of the doors must be closed when the vehicle is locked with the RKE transmitter or with the use
245. he Fuel Pump Module harness connector Measure the resistance between ground and the Fuel Level Sensor Signal circuit Is the resistance below 1000 ohms Yes Repair the Fuel Level Sensor Signal circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 3 Turn the ignition off Disconnect the Fuel Pump Module harness connector Disconnect the Instrument Cluster C1 harness connector Measure the resistance between the Fuel Level Sensor Signal circuit and Fuel Level Sensor Signal Return circuit 15 the resistance below 1000 ohms Yes Repair the Fuel Level Sensor Signal drcuit for a short to the Sensor Return circuit Perform BODY VERIFICATION TEST VER 1 Replace the Instrument Cluster in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 184 INSTRUMENT CLUSTER Symptom INSTRUMENT CLUSTER INTERNAL FAILURE B1043 POSSIBLE CAUSES CAN BUS FAILURE INSTRUMENT CLUSTER ACTION APPLICABILITY If this fault is present scan the Engine Control Module and or Transmission Control All Module for any CAN Bus related faults any CAN Bus Related faults present Yes Refer tothe symptom list for repair information relating to CAN Bus failures Perform BODY VERIFICATION TEST VER 1 GoTo 2 With the DRBIII erase DTCs Turn the ignition off wait 10 seconds then turn the ignition on With the DRBIII9 read DTCs Does the DRBIII read B1043
246. he heater s fuel supply line was drained and then not primed with the DRBIII2 in System Tests actuate Dosing Pump PRIME Otherwise proceed to the next step of this procedure With the DRBIII in System Tests select Dosing Pump OUTPUT Allow the Dosing Pump Output test to run the full 90 seconds When the Dosing Pump Output test is complete measure the amount of fuel in the container Does the dosing pump output 422 636 cc 14 26 21 5 in 90 seconds Yes GoTo 4 Replace the Dosing Pump in accordance with the Service Infor mation Perform HEATER VERIFICATION TEST VER 1 WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH Turn the ignition off Inspect the heater s air intake pipe and exhaust pipe for restrictions and obstruc tions Is the heater s air intake pipe and exhaust pipe Ok Yes Replace the Cabin Heater Assembly or Heater Booster Assembly in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 Repair the heater s air intake exhaust as necessary in accordance with the Service Information Perfo
247. help isolate an open or shorted condition Repair as necessary Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the Automatic Temperature Control harness connectors Disconnect the DRBIII from the DLC Measure the resistance between ground and the K IC ATC HBM CHM circuit 15 the resistance below 5 0 ohms Yes GoTo 3 GoTo 4 Turn the ignition off Disconnect the Automatic Temperature Control harness connectors Measure the resistance between ground and the K IC ATC HBM CHM circuit While monitoring the ohmmeter disconnect each module IC HBM CHM oneat a time NOTE The vehicle may not be equipped with all the above modules Is the resistance below 5 0 ohms with all the above modules disconnected Yes Repair the HBM CHM circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 No Replace the Module that when disconnected the short was eliminated in accordance with the service information Perform BODY VERIFICATION TEST VER 1 104 COMMUNICATION NO RESPONSE FROM AUTOMATIC TEMPERATURE CONTROL Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the DRBIII from the DLC Disconnect the Automatic Temperature Control harness connectors Turn the ignition on Using a 12 volt test light connected to ground probe the K IC ATC HBM CHM circuit NOTE The test light must illuminate brigh
248. hich the illumination has dimmed A value of 096 indicates bright while a value 2096 indicates dimming n the event of a CAN Bus communication failure 096 is displayed as a substitute value INPUT OUTPUT STATUS Compressor Clutch The ATC Module transmits this data A status of ON indicates that the compressor is operational A status of OFF indicates the compressor is not operational Compres SO Accel Compressor Shut Off Due To Acceleration The Engine Control Module transmits this data A status of YES indicates that the compressor shut off because of an acceleration request A status of indicates that there is no acceleration request If shut off due to an acceleration request the compress will switch on again after 20 seconds In addition the original acceleration request can no longer exist for the ECM to acknowledge a subse quent request In the event of a CAN Bus commu nication failure is displayed as a substitute value Compres SO W E Off Compressor Shut Off Due to Emergency Off The Engine Control Module transmits this data A status of Y ES indicates that the compressor shut off because of an emergency off request A status of NO indicates that there is no emergency off re quest In the event of a CAN Bus communication failure the last stored value is displayed as a substitute value Auxiliary Fan The ATC Module transmits this data A status of ON indicates that the auxiliary
249. hield NOTE The Rain Sensor Module RSM is mounted above the accelerator pedal assembly Turn the ignition on Move the Wiper Switch to the Intermittent position Spray or pour water on the Rain Sensor area of the windshield Did the wipers activate when water was sprayed poured on the Rain Sensor area of the windshield Yes Rain Sensor Wiper System operating properly Test complete No GoTo 3 239 WINDSHIELD WIPER amp WASHER CHECKING THE RAIN SENSOR WIPER OPERATION Continued ACTION APPLICABILITY Turn the ignition off Disconnect the Rain Sensor Module harness connector Measure the resistance between ground and each of the Rain Sensor circuits at the Rain Sensor Module harness connector 15 the resistance above 1000 ohms for each measurement Yes GoTo 4 No Repair thecircuit s that measured below 1000 ohms for a short to ground Turn the ignition off Disconnect the Rain Sensor Module harness connector Turn the ignition on Measure the voltage of each of the Rain Sensor circuits at the Rain Sensor Module harness connector 15 the voltage below 1 0 volt for each measurement Yes GoTo 5 Repair the circuit s that measured above 1 0 volt for a short to voltage Turn the ignition off All Disconnect the Rain Sensor harness connector Disconnect the Rain Sensor Module harness connector Measure the resistance of each Rain Sensor circuit between the Rain Sensor Module h
250. ic temperature control controller antilock bake controller area network cabin heater module connector positive assurance central timer module driver airbag diesel cabin heater assist cabin heater data link connector diagnostic trouble code driver electric back lite rear window de fogger engine control module Gulf Coast Countries heater booster module heater ventilation air conditioning instrument duster mechanical instrument duster Rain Sensor Module shifter assembly sentry key remote entry module security system module transmission control module NOTES 7 0 DIAGNOSTIC INFORMATION AND PROCEDURES AIRBAG Symptom AIRBAG WARNING INDICATOR DRIVER HIGH When Monitored and Set Condition AIRBAG WARNING INDICATOR DRIVER HIGH When Monitored With ignition on the ACM monitors the Airbag Warning Indicator Driver circuit for a short to battery voltage Set Condition This DTC will set if the ACM detects voltage on the Airbag Warning Indicator Driver circuit POSSIBLE CAUSES ACM AIRBAG WARNING LAMP DRIVER CIRCUIT SHORTED TO BATTERY CLUSTER SRS INDICATOR SHORTED TO BATTERY CLUSTER SRS INDICATOR SHORTED TO BATTERY STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on All Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE
251. ications charts Also confirm that the water cyde valve is functioning Remember that the valve is normally open The pulse width signal will offer insight into the valve s operation The lower the percentage number the more open the valve be comes Confirm that the valve is responding to the signal from the ATC If functioning correctly verify mode and blend door operation If okay the diagno Sis then becomes purely refrigerant system related Attach the appropriate gauges and diagnose the refrigeration system Refer to the Service I nforma tion for refrigerant system diagnostic procedures DIAGNOSTIC TIPS SENSOR VALUES MO Ul HD Ambient Air Temperature The Instrument Cluster transmits Ambient Air Temperature Sensor data In the event of a CAN Bus communication failure the last stored value is displayed as a substitute value Interior Temperature The normal range for the Interior Temperature Sensor is from 32 F to 104 F An implausible tem perature value indicates that the Interior Temper ature Sensor is bad Therepair in this case would be to replace the ATC Module since the sensor is integral to the module Evaporator Temperature The normal range for the Evaporator Temperature Sensor is from 14 F to 104 F A substitute value of 14 F with no updates indicates an Evaporator Tem perature Sensor circuit failure Air Outlet Temperature The normal range for the Air Outlet Temperature Sensor is from 32 F to
252. ight Rear Output INTRUSION SENSOR NO 1 DG BK Intrusion Sensor 1 Signal INTRUSION SENSOR NO 2 GY BK Intrusion Sensor 2 Signal C2 4 INTRUSION SENSOR NO 3 DG WT BL Intrusion Sensor 3 Signal DG YL 5 Intrusion Sensor Interface Ground RD DG Fused B FROM FUSE 2 FUSE BLOCK 3 C2 2 C2 11 C2 3 C2 7 C1 16 299 WT BL RKE Interface CTM m SKREEM WT BL RD Security System Interface 9 BKNT Fan Stage 1 Relay FROM RELAY WT RD Warm Air Aux Heater Control FROM CONTROL BR Ground 811a76cf 5 H D R A M 5 SCHEMATIC DIAGRAMS 10 7 RAIN SENSOR SYSTEM RAIN SENSOR MODULE RAIN SENSOR 2 1 3 y WIPER MOTOR WASHER PUMP FUSE BLOCK 1 WIPER SWITCH TO IGN SWITCH START RUN WASHER SWITCH WIPER TURN SIGNAL START MODULE 81318179 5 H R A M 5 300 CHARTS AND GRAPHS 11 0 CHARTS AND GRAPHS 11 4 EVAP TEMP SENSOR RESISTANCE TO TEMPERATURE SPECIFICATIONS R S R 30 kO A 27 N 24 5 21 R 18 15 H 5 12 9 RS 6 3 0 20 10 10 20
253. ins the follow ing components Airbag Control Module Airbag Warning Indicator SRS Driver Airbags Clockspring Passenger Airbag Driver Seat Belt Tensioners Passenger Seat Belt Tensioners TheAirbag Control M odule ACM has five major functions onboard diagnostics determine the se verity of impacts squib deployment and Accident Response K Line communications The ACM is GENERAL INFORMATION secured to the floor under the Driver seat and receives power from the Fuse Block No 1 When ever the ignition key is turned to the run or start position theACM performs a systemtest TheACM cannot be repaired or adjusted The microprocessor in the ACM monitors the internal and external airbag system electrical cir cuits to determine the system readiness When a monitored system is determine to be out of range the ACM will set both active and stored diagnostic trouble codes DTC The ACM also contains an energy storage capacitor This capacitor stores enough electrical energy to deploy the front airbag components for two seconds following a battery disconnect or failure during an impact The Accelerometer in the ACM is used to sense the rate of vehicle deceleration provide verification of the direction and severity of an impact When the preprogrammed conditions are met the ACM sends an electrical signal to deploy the appropriate front airbag system components and a deployment noti fication To provide an accident
254. intermittent problem in the system CRITICAL DTCs DTCs that could lead to a condition where the safety devises may not deploy or incorrectly deploy In the event of such DTC the safety of the vehicle occupants can no longer be guaranteed If the lamp remains on there could be an active DTC in the system Some DTCs Internal Module and squib DTCs will keep the indicator illuminated even if the codes are no longer active ACM NOT CONFIGURED FOR PASSENGER AIRBAG AND TENSIONER If after replacing the ACM the Airbag Warning Indicator flashes continuously the ACM must be configured for the Passenger Airbag and Tensioner Select Miscellaneous from the ACM main menu and configure the Passenger Airbag Tensioner squibs WARNING THE AIRBAG SYSTEM IS A SENSITIVE COMPLEX ELECTROMECHANICAL UNIT BEFORE ATTEMPTING TO DIAGNOSE OR SERVICE ANY AIRBAG SYSTEM OR RELATED STEERING WHEEL STEERING COLUMN OR INSTRUMENT PANEL COMPONENTS YOU MUST FIRST DISCONNECT AND ISOLATE THE BATTERY NEGATIVE GROUND CABLE WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE FURTHER SYSTEM SERVICE THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM FAILURE TO DO THIS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY WARNING TO AVOID PERSONAL INJURY OR DEATH NEVER STRIKE OR KICK THE AIRBAG CONTROL MODULE AS IT CAN DAMAGE THE IMPACT SENSOR OR AFFECT ITS CALIBRATION WARNING IF AN AIRBAG CONTROL MODULE IS ACCIDENTA
255. ion DTCs 6 With the DRBIII display Transmission Temperature Start and run the engine until the Transmission Temperature is HOT above 43 C 110 7 Check the Transmission fluid and adjust if necessary Refer tothe Service I nformation for the proper Fluid Fill procedure 8 NOTE If internal repairs were performed and the shift quality is still poor it may be necessary to check the internal repair Also check for any TSBs and or Controller Flash updates that may apply 9 ROAD TEST PROCEDURE 10 Road test the vehicle Make fifteen to twenty 1 2 2 3 3 4 and 4 5 upshifts 11 Perform these shifts from a standing start to 72 km h 45 MPH with a constant throttle opening of 20 to 25 degrees 12 With speeds below 40 km h 25 MPH make five to eight wide open throttle kickdowns to 1st gear Allow at least 5 seconds each in 2nd and 3rd gear between each kickdown 13 With the DRBIII9 read Transmission DTCs Were there any Diagnostic Trouble Codes set Yes Repair is not complete refer to appropriate symptom No Repair is complete ROAD TEST VERIFICATION VER 2 APPLICABILITY 1 Inspect the vehicle to ensure that all engine components are properly installed and All connected Reassemble and reconnect components as necessary 2 If this verification procedure is being performed after a non DTC test perform steps 3 4 3 Check toseeiftheinitial symptom still exists If there are no trouble codes and the sympt
256. irbag Module Connector and ground Is the resistance below 10K ohms on either circuit Yes Repair Passenger Squib 1 Line 1 and Line 2 circuits for a short to ground Perform AIRBAG VERIFICATION TEST VER 1 GoTo 4 WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair Replace the Airbag Control Module in accordance with Service Information Perform AIRBAG VERIFICATION TEST VER 1 66 AIRBAG PASSENGER SQUIB 1 SHORT TO GROUND Continued ACTION APPLICABILITY With the DRBIII record and erase all DTC s from all Airbag modules All If equipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors Look for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connec
257. ircuit for a short to ground Perform ROAD TEST VERIFICATION VER 2 GoTo 3 Turn the ignition off Disconnect the DRBIII from the DLC Disconnect the ECM harness connectors Turn the ignition on Using a 12 volt test light connected to ground probe the K ECM circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes Repair the K ECM circuit for a short to voltage Perform ROAD TEST VERIFICATION VER 2 GoTo 4 112 COMMUNICATION NO RESPONSE FROM ENGINE CONTROL MODULE Continued ACTION APPLICABILITY Turn the ignition off AII Disconnect the ECM harness connectors Disconnect the DRBIII2 from the DLC Measure the resistance of the K ECM circuit between the ECM connector and the DLC 15 the resistance below 5 0 ohms Yes Replace and program the Engine Control Module in accordance with the Service nformation Perform ROAD TEST VERIFICATION VER 2 Repair the K ECM circuit for an open Perform ROAD TEST VERIFICATION VER 2 113 COMMUNICATION Symptom NO RESPONSE FROM HEATER BOOSTER MODULE POSSIBLE CAUSES CHECK POWERS AND GROUNDS TO THE HEATER BOOSTER MODULE MODULE INTERNAL SHORT TO GROUND ATC HBM CHM CIRCUIT SHORTED TO GROUND MODULE INTERNAL SHORT TO VOLTAGE K IC ATC HBM CHM CIRCUIT SHORTED TO VOLTAGE ATC HBM CHM CIRCUIT OPEN
258. ircuits for a short or open condition Check all of the engine control module s ground circuits for an open condition Were any problems found Yes Repair the power ground circuit s as necessary Perform BODY VERIFICATION TEST VER 1 GoTo 5 Turn the ignition off Disconnect the Engine Control Module harness connectors Measure the resistance between the CAN C Bus circuit and the CAN C Bus circuit in the Engine Control Module harness connector 15 the resistance 57 to 63 ohms Yes Replace the Engine Control Module in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Repair the CAN C Bus C Bus circuit s for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the CAN C Bus circuit and the CAN C Bus circuit in the Automatic Temperature Control ATC C1 harness connector Is the resistance 57 to 63 ohms Yes Replace the Automatic Temperature Control in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 No Repair the CAN C Bus C Bus circuit s for an open Perform BODY VERIFICATION TEST VER 1 164 HEATING amp Symptom NO COMMUNICATION WITH 1 ACTIVE When Monitored and Set Condition NO COMMUNICATION WITH IC ACTIVE When Monitored With the
259. is above 10 0 volts and the Security System Module is connected Set Condition The Security System Module detects the incorrect voltage on the Siren Signal Control circuit POSSIBLE CAUSES DTC PRESENT FUSE 21N FUSE BLOCK 3 FUSED WIRE OPEN GROUND CIRCUIT OPEN SIREN SIGNAL CONTROL WIRE SHORTED SIREN SIGNAL CONTROL WIRE OPEN SIREN ACTION APPLICABILITY With the DRBIII record and erase All Remove the ignition key Close and lock all doors and set the Vehicle Theft Security System Wait 1 minute Disarm the Vehicle Theft System With the DRBIII9 read Does the DRBIII9 display the same DTC Yes GoTo 2 Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 Check Fuse 2 in Fuse Block 3 15 the fuse open Yes Check for a short to ground and replace the fuse Perform BODY VERIFICATION TEST VER 1 No GoTo 3 Disconnect the Siren connector Measure the voltage of the Fused B circuit 15 the voltage above 10 0 volts Yes GoTo 4 Repair the Fused B circuit for an open Perform BODY VERIFICATION TEST VER 1 235 VEHICLE THEFT SECURITY SIREN CIRCUIT OPEN SHORTED TO GROUND Continued ACTION APPLICABILITY Disconnect the Siren connector All Measure the resistance of the Ground circuit at the Siren connector 15 the resistance below 5 0 ohms Yes
260. isconnected WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Driver Seat Belt Tensioner connector NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool to the Driver Seat Belt Tensioner connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION ON THEN RECONNECT THE BATTERY With the DRBIII9 read the active Airbag Control Module 5 Does the DRBIII display DRIVER SEAT BELT TENSIONER SHORT TO GROUND Yes GoTo 3 Replace the Driver Seat Belt Tensioner in accordance with the Service nformation Perform AIRBAG VERIFICATION TEST VER 1 31 AIRBAG DRIVER SEAT BELT TENSIONER SHORT TO GROUND Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION All OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Load Tool from the Driver Seat Belt Tensioner connector Disconnect the Airbag Control Module connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool ACM Adaptor to the Airbag Control Module connector s Measure the resistance of the Driver SBT Line 1 and Line 2 circuits between the Driver SBT connector and ground 15 the resistance below ohms on either circuit Yes Repair Driver Seat Belt Tensioner Line 1 or Line 2 circuits short to g
261. it 15 the resistance below 5 0 ohms Yes Repair the Intrusion Sensor Interface circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 8 Disconnect the Intrusion Sensor No 2 connector Disconnect the Security System Module C2 connector Measure the resistance of thel ntrusion Sensor Interface circuit between the SSM C2 connector and the Intrusion Sensor No 2 connector 15 the resistance below 5 0 ohms Yes Replace the Intrusion Sensor Perform BODY VERIFICATION TEST VER 1 Repair the Intrusion Sensor Interface circuit for an open Perform BODY VERIFICATION TEST VER 1 Disconnect the Intrusion Sensor No 2 connector All Disconnect the Security System Module C2 connector Measure the resistance of the Intrusion Sensor 2 Signal circuit between the SSM C2 connector and the Intrusion Sensor No 2 connector Is the resistance below 5 0 ohms 224 VEHICLE THEFT SECURITY Symptom INTRUSION SENSOR 2 GROUND CIRCUIT OPEN amaan When Monitored and Set Condition INTRUSION SENSOR 2 GROUND CIRCUIT OPEN When Monitored Whenever the battery voltage is above 10 0 volts and the Security System Module is connected Set Condition The Security System Module detects the incorrect voltage on the Intrusion Sensor drcuit POSSIBLE CAUSES DTC PRESENT GROUND CIRCUIT OPEN INTRUSION SENSOR ACTION APPLICABILITY With the DRBIII record and erase All Remove the ignition key
262. it to fail because of corrosion Be careful when performing electrical tests so as to prevent acciden tal shorting of terminals Such mistakes can dam age fuses or components Also a second code could be set making diagnosis of the original problem more difficult 4 3 2 ROAD TESTING A COMPLAINT VEHICLE Some complaints will require a test drive as part of the repair verification procedure The purpose of the test drive is to try to duplicate the diagnostic code or symptom condition WARNING REASSEMBLE COMPONENTS BEFORE ROAD TESTING A VEHICLE DO NOT TRY TO READ THE DRBIII SCREEN OR OTHER TEST EGUIPMENT DURING A TEST DRIVE DO NOT HANG THE OR OTHER TEST FROM THE REARVIEW MIRROR DURING A TEST DRIVE HAVE AN ASSISTANT AVAILABLE TO OPERATE THE OR OTHER TEST EQUIPMENT FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJURY OR DEATH 5 0 REOUIRED TOOLS AND EOUIPMENT DRBIII9 diagnostic read out box J umper wires Ohmmeter Voltmeter Test Light 8310 Airbag System Load Tool 8443 SRS Airbag System Load Tool 9001 Detector GENERAL INFORMATION 6 0 GLOSSARY OF TERMS ABS ACM ACT AECM ASDM ATC CAB CAN CHM CPA CTM DAB DCHA DLC DTC DR EBL ECM GCC HBM HVAC RSM SA SKREEM SSM TCM antilock brake system airbag control module actuator airbag electronic control module ACM airbag system diagnostic module ACM automat
263. itch Voltage Chart in Charts and Graphs to verify Repair the Wiper Motor Ground circuit for an open 241 WINDSHIELD WIPER amp WASHER CHECKING THE RAIN SENSOR WIPER OPERATION Continued ACTION APPLICABILITY NOTE Ensure the Rain Sensor Module harness connector is reconnected All Turn the ignition off Disconnect the wiper motor harness connector Connect a voltmeter between ground and the wiper motor harness connector cavity 2 harness side Turn the ignition on While observing the voltmeter move the wiper switch tothe OFF INTERMITTENT LOW and HIGH positions Does the voltmeter display above 10 0 volts for each of the wiper switch positions Yes GoTo 13 Repair circuit between Wiper Motor harness connector cavity 2 and Rain Sensor Module harness connector cavity C 2 for an open short to ground or short to voltage If ok Replace the Rain Sensor Module Turn the ignition off Disconnect the wiper motor harness connector Connect a voltmeter between ground and the wiper motor harness connector cavity 5 harness side Move the wiper switch to the OFF position Turn the ignition on While observing the voltmeter move the wiper switch from the OFF position to the INTERMITTENT position only Does the voltmeter display above 10 0 volts for both of the wiper switch positions Yes GoTo 14 Repair circuit between Wiper Motor harness connector cavity 5 and Rain Sensor Module
264. ith the DRBIII read DTCs Does the DRBIII9 read Preglow Indicator Lamp Failure Yes Replace the Instrument Cluster in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Test Complete 194 INSTRUMENT CLUSTER Symptom SRS INDICATOR LAMP FAILURE POSSIBLE CAUSES INSTRUMENT CLUSTER ACTION APPLICABILITY If this fault is present interrogate the Airbag Control Module for any SRS Indicator All faults NOTE The Instrument Cluster performs internal tests on the indicators during each ignition cycle With the DRBIII erase DTCs Turn the ignition off wait 10 seconds then turn the ignition on With the DRBIII read DTCs Does the DRBIII9 read SRS Indicator Lamp Failure Yes Replace the Instrument Cluster in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Test Complete 195 POWER DOOR LOCKS RKE Symptom DRIVER DOOR AJAR INDICATOR DRIVER CIRCUIT SHORT TO GROUND I When Monitored and Set Condition DRIVER DOOR AJ AR INDICATOR DRIVER CIRCUIT SHORT TO GROUND When Monitored Whenever the battery is above 10 0 volts and the module is connected Set Condition Whenever the CTM senses resistance on the Driver Door Ajar Indicator Driver circuit for over 30 seconds this code will set POSSIBLE CAUSES DTC PRESENT MASTER DOOR LOCK SWITCH SHORTED CENTRAL TIMER MODULE SHORTED DRIVER DOOR AJ AR INDICATOR DRIVER WIRE SHORT TO GRO
265. ition Ifthe voltage on theFused Switch Output Run Start circuit drops below approximately 6 0 volts the code will set and all communicate with the DRB will stop The will report NO RESPONSE from the ACM POSSIBLE CAUSES ACM LOSS OF IGNITION RUN START VOLTAGE INTERMITTENT RUN START CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Ensure the battery is fully charged All Turn the ignition on NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM DETERMINE ACTIVE OR STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 3 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery must be disconnected WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair Replace the Airbag Control Module in accordance with Service Instructions Perform AIRBAG VERIFICATION TEST VER 1 45 AIRBAG LOSS OF IGNITION RUN START Continued ACTION APPLICABILITY With the DRBIII record and erase all DTC s from all Airbag modules All If any ACTIVE codes are present they must resolved
266. iver Airbag Squib connector s NOTE Check connectors Clean and repair as necessary WARNING TO AVOID PERSONAL INJ URY OR DEATH DO NOT PLACE AN INTACT UNDEPLOYED AIRBAG FACE DOWN SURFACE THE AIRBAG WILL PROPEL INTO THEAIR IF ACCIDENTALLY DEPLOYED Connect the appropriate Load Tool to the Driver Airbag connector s WARNING TO AVOID PERSONAL URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 read the active Airbag Control Module DTC s Does the DRBIII show DRIVER SQUIB 1 SHORT TO GROUND Yes GoTo 3 Replace the Driver Airbag in accordance with the Service nfor mation Perform AIRBAG VERIFICATION TEST VER 1 WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Load Tool from the Driver Airbag connector s Disconnect the Clockspring connector NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool to the Clockspring connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 read the active Airbag Control Module Does the DRBIII show DRIVER SQUIB 1 SHORT TO GROUND Yes GoTo 4 Replace the Clockspring in accordance with the Service Informa tion Perform AIRBAG VERIFICATION TEST VER 1 WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE
267. iver Airbag connector s Disconnect the Clockspring connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool to the Clockspring connector s WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 read the active Airbag Control Module Does the DRBIII9 show DRIVER SQUIB 1 SHORT TO BATTERY Yes GoTo 4 Replace the Clockspring in accordance with the Service nforma tion Perform AIRBAG VERIFICATION TEST VER 1 40 AIRBAG DRIVER SQUIB 1 SHORT TO BATTERY Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI All TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING WARNING TO AVOID PERSONAL INJ URY OR DEATH IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED Disconnect the Load Tool from the Clockspring connector s Disconnect the Airbag Control Module connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool Adaptor to the Airbag Control Module connec tor s WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY Measure the voltage on the Driver Squib 1 Line 1 and Line 2 circuits between the Clockspring connector and ground 15 there any voltage present Yes Repair the Driver Squib 1 Line 1 or Line 2 circuits sh
268. k to us 1 1 SYSTEM COVERAGE This diagnostic procedures manual covers all Sprinter vehides 1 2 SIX STEP TROUBLESHOOTING PROCEDURE Diagnosis of the body system is done in six basic steps e verification of complaint GENERAL INFORMATION e verification of any related symptoms e Symptom analysis e problem isolation e repair of isolated problem e verification of proper operation 2 0 IDENTIFICATION OF SYSTEM The vehicle systems that are part of the body system are e Airbag Automatic Temperature Control Communication Instrument Cluster Power Door Locks RKE e Vehicle Theft Security System VTSS e Wiper Rain Sensor 3 0 SYSTEM DESCRIPTION AND FUNCTIONAL OPERATION The body system on the Sprinter consists of a combination of modules that communicate with each other using the CAN Bus controller area network Through the CAN Bus information about the operation of vehicle components and circuits is relayed quickly to the appropriate modules Since the CAN bus network is for intermodule communi cation only the DRBIII9 utilizes K Lines to estab lish communications with each module It is impor tant to note the CAN bus circuits are by no means tied to the K Lines They are completely separate from each other For additional information on the CAN bus and the K Lines refer to the Communi cation section of this general information 3 1 AIRBAG SYSTEM The Sprinter Airbag System conta
269. key Close and lock all doors and set the Vehicle Theft Security System Wait 1 minute Disarm the Vehicle Theft System With the DRBIII read 5 Does the DRBIII9 display the same DTC Yes GoTo 2 No Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 Check Fuse 2 in Fuse Block 3 15 the fuse open Yes Check for a short to ground and replace the fuse Perform BODY VERIFICATION TEST VER 1 No GoTo 3 226 VEHICLE THEFT SECURITY INTRUSION SENSOR 3 CIRCUIT OPEN SHORT TO GROUND Continued ACTION APPLICABILITY Disconnect the Intrusion Sensor No 3 connector Measure the voltage of the Fused B circuit 15 the voltage above 10 0 volts Yes GoTo 4 Repair the Fused B 4 circuit for an open Perform BODY VERIFICATION TEST VER 1 Disconnect the Intrusion Sensor No 3 connector Measure the resistance of the Ground circuit at the Intrusion Sensor connector 15 the resistance below 5 0 ohms Yes GoTo 5 Repair the Ground circuit for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Security System Module C2 connector Disconnect the Intrusion Sensor No 3 connector Measure the resistance between ground and the Intrusion Sensor 3 Signal circuit Is the resistance below 5 0 ohms Yes Repair the Intrusion Sensor Si
270. lowing steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related to the Driver circuits rotate the steering wheel from stop to stop You have just attempted to simulate the condition that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning vehicle to customer AIRBAG Symptom AIRBAG WARNING INDICATOR DRIVER LOW When Monitored and Set Condition AIRBAG WARNING INDICATOR DRIVER LOW When Monitored With ignition on the ACM monitors the Airbag Warning Indicator Driver circuit for an open high resistance or short to ground Set Condition This DTC will set if the ACM detects a short to ground or open Airbag Warning Indicator Driver circuit POSSIBLE CAUSES CLUSTER SRS INDICATOR OPEN ACM AIRBAG WARNING LAMP DRIVER CIRCUIT OPEN OPEN AIRBAG WARNING INDICATOR DRIVER ACM WARNING INDICATOR CIRCUIT LOW AIRBAG WARNING INDICATOR DRIVER SHORT TO GROUND STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on All Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or ST
271. ltage If ok Replace the Rain Sensor Module Turn the ignition off Disconnect the wiper motor harness connector Connect a voltmeter between ground and the wiper motor harness connector cavity 6 harness side Move the wiper switch to the HIGH position Turn the ignition on NOTE The voltmeter should display above 10 0 volts for approximately 20 seconds then switch to 0 0 volts Does the voltmeter display above 10 0 volts then switch to 0 0 volts after 20 seconds Yes Replace the Wiper Motor in accordance with the Service Informa tion Repair circuit between Wiper Motor harness connector cavity 6 and Rain Sensor Module harness connector cavity 8 for an open short to ground or short to voltage If ok Replace the Rain Sensor Module 243 VERIFICATION TESTS Verification Tests ABS VERIFICATION TEST VER 1 1 Turn the ignition off 2 Connect all previously disconnected components and connectors 3 Ensure all accessories are turned off and the battery is fully charged 4 Ensure that the Ignition is on and with the DRBIII erase all Diagnostic Trouble Codes from ALL modules Start the engine and allow it to run for 2 minutes and fully operate the system that was malfunctioning 5 Turn the ignition off and wait 5 seconds Turn the ignition on and using the read DTC s from ALL modules 6 If any Diagnostic Trouble Codes are present return to Symptom list and troubleshoot new or recurring s
272. ltage above 0 2 volts Yes Repair the Redrculated Air Solenoid Valve Control circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 167 HEATING amp RECIRC AIR SOLENOID CONTROL HIGH OR OPEN ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All NOTE Check connectors Clean repair as necessary Disconnect the Automatic Temperature Control ATC C1 harness connector Disconnect the Recirculated Air Solenoid Valve harness connector Measure the resistance of the Recirculated Air Solenoid Valve Control circuit between the Automatic Temperature Control ATC harness connector and the Recirculated Air Solenoid Valve harness connector 15 the resistance below 5 0 ohms Yes GoTo 4 Repair the Recirculated Air Solenoid Valve Control circuit for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Recirculated Air Solenoid Valve harness connector Measure the resistance between ground and the Ground circuit 15 the resistance below 5 0 ohms Yes Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Repair the Ground circuit for an open Perform BODY VERIFICATION TEST
273. minate brightly with all the above modules disconnected Yes Repair the K IC HBM CHM circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 Replace the Module that when disconnected the short was eliminated in accordance with the service information Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Instrument Cluster harness connectors Disconnect the DRBIII9 from the DLC Measure the resistance of the K I C ATC HBM CHM circuit between the Instrument Cluster connector and the DLC 15 the resistance below 5 0 ohms Yes Replace the Instrument Cluster in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Repair the ATC HBM CHM circuit for an open Perform BODY VERIFICATION TEST VER 1 117 COMMUNICATION Symptom NO RESPONSE FROM RADIO POSSIBLE CAUSES CHECK POWERS AND GROUNDS TO THE RADIO TRANSMISSION CONTROL MODULE K TCM RADIO CIRCUIT SHORTED TO GROUND TRANSMISSION CONTROL MODULE K TCM K TCM RADIO RADIO CIRCUIT SHORTED TO VOLTAGE RADIO CIRCUIT OPEN ACTION APPLICABILITY Turn the ignition off All Disconnect the Radio harness connectors Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located in the service information to help isolate an open or shorted condition Repair as necessary Perform BODY VERIFICATION TES
274. move the key UsingtheRKE transmitter operatethe Door Locks several times while observing the DRBIII Wait 10 seconds Does the DRBIII9 display INTERFACE CIRCUIT SHORT TO VOLTAGE Yes 2 Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Using the RKE transmitter operate the door locks several times and re check for any DTC s Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Sentry Key Remote Entry Module connector Measure the voltage between ground and the RKE Interface circuit Is there any voltage present Yes GoTo 3 No Replace the Sentry Key Remote Entry Module Perform BODY VERIFICATION TEST VER 1 206 POWER DOOR LOCKS RKE INTERFACE CIRCUIT SHORT TO VOLTAGE SKREEM Continued ACTION APPLICABILITY Disconnect the Central Timer Module C1 connector AII Disconnect the SKREEM connector Turn the ignition on Measure the voltage between ground and the RKE Interface circuit Is there any voltage present Yes Repair the RKE Interface circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 Replace the Central Timer Module Perform BODY VERIFICATION TEST VER 1 207 POWER DOOR LOCKS RKE Symptom THE ACM HAS UNLOCKED THE DOORS When Monitored and Set Condition THE ACM HAS UNLOCKED THE DOORS When Monitored Whenever the battery i
275. n off Disconnect the Ambient Temperature Sensor harness connector Disconnect the nstrument Cluster harness connector Measure the resistance of the Ambient Temperature Sensor Signal Return circuit between the Instrument Cluster C1 harness connector and theAmbient Temperature Sensor harness connector Is the resistance above 10 ohms Yes Repair theAmbient Temperature Sensor Signal Return circuit for an open Perform BODY VERIFICATION TEST VER 1 GoTo 4 179 INSTRUMENT CLUSTER AMBIENT TEMP SENSOR OPEN SHORT TO BATTERY Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the Instrument Cluster C1 harness connector Disconnect the Ambient Temperature Sensor harness connector Measure the resistance of the Ambient Temperature Sensor Signal circuit between the Instrument Cluster C1 harness connector and theAmbient Temperature Sensor harness connector 15 the resistance above 10 ohms Yes Repair the Ambient Temperature Sensor Signal circuit for an open Perform BODY VERIFICATION TEST VER 1 Replace the Instrument Cluster in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 180 INSTRUMENT CLUSTER Symptom AMBIENT TEMP SENSOR SHORT TO GROUND POSSIBLE CAUSES AMBIENT TEMPERATURE SENSOR AMBIENT TEMPERATURE SENSOR SIGNAL CIRCUIT SHORT TO GROUND AMBIENT TEMPERATURE SENSOR SIGNAL CIRCUIT SHORT TO SENSOR RETURN CIR CUIT INS
276. n this GENERAL INFORMATION General Information Section or in the service man ual procedures Following these procedures is very important to the safety of the individuals perform ing diagnostic tests 4 2 2 VEHICLE PREPARATION FOR TESTING Make sure the vehicle being tested has a fully charged battery If it does not false diagnostic codes or error messages may occur 4 2 3 SERVICING SUB ASSEMBLIES Some components of the body system are in tended to be serviced as an assembly only Attempt ing to remove or repair certain system subcompo nents may result in personal injury and or improper system operation Only those components with approved repair and installation procedures in the service manual should be serviced 4 2 4 DRBIII SAFETY INFORMATION WARNING EXCEEDING THE LIMITS OF THE DRBIII MULTIMETER IS DANGEROUS READ ALL INSTRUCTIONS BEFORE USING THE MULTIMETER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJURY OR DEATH Follow the vehicle manufacturer s service speci fications at all times Do not use the DRBIIIS if it has been damaged Do not use the test leads if the insulation 15 damaged or if metal is exposed e To avoid electrical shock do not touch the test leads tips or the circuit being tested Choose the proper range and functions for the measurement Do not try voltage or current mea surement that may exceed the rated capacity Donot exceed
277. nds then turn the ignition on With the DRBIII9 read Automatic Temperature Control DTCs Does the DRBIII9 display COMPRESSOR CONTROL HIGH OR OPEN Yes Replace the A C Compressor Clutch in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Test Complete 128 HEATING amp COMPRESSOR CONTROL HIGH OPEN ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All NOTE Check connectors Clean repair as necessary Disconnect the Automatic Temperature Control ATC C1 harness connector Disconnect the A C Compressor Clutch harness connector Measure the resistance of the A C Compressor Clutch Control circuit between the Automatic Temperature Control ATC C1 harness connector and the A C Compres sor Clutch harness connector Is the resistance below 5 0 ohms Yes Replace the Automatic Temperature Control ATC in accordance with the Service nformation Perform BODY VERIFICATION TEST VER 1 Repair the A C Compressor Clutch Control circuit for an open Perform BODY VERIFICATION TEST VER 1 129 HEATING amp Symptom List A C COMPRESSOR CONTROL HIGH OR OPEN STORED A C COMPRESSOR CONTROL SHORTED LOW STORED AIR OUTLET TEMP SENSOR HIGH OR OPEN STORED AIR OUTLET TEMP SENSOR SHORTED LOW STORED AUX FAN RELAY CONTROL HIGH OR OPEN STORED AUX FAN RELAY CONTROL SHORTED LOW STORED BLOWER STAGE 1HIGH OR OPEN STORED BLOWER STAG
278. necessary 172 HEATING amp Symptom REFRIG PRESS SENSOR SHORTED LOW ACTIVE POSSIBLE CAUSES REFRIGERANT PRESSURE SENSOR 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND CIRCUIT 5 VOLT SUPPLY CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT REFRIGERANT PRESSURE SENSOR FEEDBACK CIRCUIT SHORTED TO GROUND REFRIGERANT PRESSURE SENSOR FEEDBACK CIRCUIT SHORTED TO GROUND CIRCUIT REFRIGERANT PRESSURE SENSOR FEEDBACK CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT AUTOMATIC TEMPERATURE CONTROL ATC ACTION APPLICABILITY Turn the ignition off All Disconnect the Refrigerant Pressure Sensor harness connector NOTE of the following criteria must be met in order to successfully run the ATC Function Test Place the shift lever in Park Turn the ignition on With the record and erase ATC Start the engine Allow the engine to reach normal operating temperature Set the blower to high speed Press the Air Conditioning switch On With the DRBIIIS verify that the ambient temperature is above 59 F 15 the refrigerant pressure is between 29 and 348 PSI 2 and 24 bar the evaporator temperature is above 36 5 F 2 5 C and the coolant temperature is above 158 F 70 C With the DRBIII9 in Automatic Temperature Control ATC select System Tests and select ATC Function Test When the ATC Function Test is complete proceed as follows With the DRBIII9 read the active ATC DTC
279. nectors of the related airbag circuit or component If codes are related tothe Driver circuits rotatethe steering wheel from stop to stop You have just attempted to simulate the condition that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning vehicle to customer 21 AIRBAG Symptom List DRIVER SEAT BELT TENSIONER INCORRECT FEEDBACK DRIVER SQUIB 1 INCORRECT FEEDBACK INTERNAL 1 INTERNAL 2 INTERNAL 3 PASSENGER SEAT BELT TENSIONER INCORRECT FEEDBACK PASSENGER SQUIB 1 INCORRECT FEEDBACK STORED ENERGY FIRING 1 STORED ENERGY FIRING 2 Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be DRIVER SEAT BELT TEN SIONER INCORRECT FEEDBACK When Monitored and Set Condition INTERNAL 1 When Monitored With the ignition on the module on board diagnostics continuously performs internal circuit tests Set Condition This DTC will set if the module identifies an out of range internal circuit INTERNAL 2 When Monitored With the ignition on the module on board diagnostics continuously performs internal circuit tests Set Condition This DTC will set if the module identifies an out of range internal circuit INTERNAL 3 When Monitored With the ignition on the module on board diagnostics continuously performs i
280. nstructions in the General Information section to put it back in synchronization before proceeding Turn the ignition off Disconnect the Central Timer Module C1 connector Measure the resistance between ground and the RKE Interface circuit While observing the ohmmeter press any button on the RKE transmitter NOTE The resistance will be approximately 9000 0 ohms coming from the SKREEM module Did the meter go to OL when the button was pressed Yes Replace the Central Timer Module Perform BODY VERIFICATION TEST VER 1 Replace the Sentry Key RemotE Entry Module Perform BODY VERIFICATION TEST VER 1 210 POWER DOOR LOCKS RKE Symptom RKE POOR RANGE POSSIBLE CAUSES DTC PRESENT ANTENNA OPEN OR SHORTED SKREEM OPEN ACTION APPLICABILITY With the DRBIII read DTC s All Turn the ignition off and remove the key UsingtheRKE transmitter operate the Door Locks several times while observing the DRBIII Wait 10 seconds Does the DRBIII9 display any Door Lock or related DTC s Yes Refer to symptom list for problems related to POWER DOOR LOCKS RKE Perform BODY VERIFICATION TEST VER 1 GoTo 2 Gain access to and disconnect the SKREEM module connector Measure the resistance between ground and the RKE Antenna circuit NOTE The resistance should be between 0 2 and 0 4 ohms 15 the resistance between 0 2 and 0 4 ohms Yes Replace the Sentry Key RemotE Entry Module Perform B
281. nternal circuit tests Set Condition This DTC will set if the module identifies an out of range internal circuit STORED ENERGY FIRING 1 When Monitored With the ignition on the module on board diagnostics continuously performs internal circuit voltage tests Set Condition This DTC will set if the ACM identifies an internal high voltages condition AIRBAG DRIVER SEAT BELT TENSIONER FEEDBACK Continued STORED ENERGY FIRING 2 When Monitored With the ignition on the module on board diagnostics continuously performs internal voltage tests Set Condition This DTC will set iftheACM identifies an internal low voltages condition POSSIBLE CAUSES AIRBAG CONTROL MODULE ACM ACTION APPLICABILITY Turn the ignition on All NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING WARNING TO AVOID PERSONAL INJ URY OR DEATH IF THE MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED Select the appropriate module and DTC type combination ACM ACTIVE DTC Replace the Airbag Control Module in accordance with Service Instructions Perform AIRBAG VERIFICATION TEST VER 1 ACM STORED DTC Replace the Airbag Control Module in accordance with Service Instructions Perform AIRBAG VERIFICA
282. o the Driver Airbag connector s WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 read the active Airbag Control Module 5 Does the DRBIII show DRIVER SQUIB 1 CIRCUIT SHORT Yes GoTo 3 Replace the Driver Airbag in accordance with the Service Infor mation Perform AIRBAG VERIFICATION TEST VER 1 WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Load Tool from the Driver Airbag connector s Disconnect the Clockspring connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool to the Clockspring connector s WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 read the active Airbag Control Module Does the DRBIII9 show DRIVER SQUIB 1 CIRCUIT SHORT Yes GoTo 4 No Replace Clockspring in accordance with the Service Informa tion Perform AIRBAG VERIFICATION TEST VER 1 WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Load Tool from the Clockspring connector s Disconnect the Airbag Control Module connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool Adaptor to the Airba
283. odes er iE Rex der PR EY CR e EG 292 10 3 1 AUTOMATIC TEMPERATURE CONTROL 292 10 3 2 CABIN HEATER MODULE 293 10 3 3 HEATER BOOSTER MODULE 294 10 4 INSTRUMENT 295 vii TABLE OF CONTENTS Continued 10 5 POWER DOOR LOCKS RKE msn ape tala a al 296 10 5 1 FRONT DOORS RO RUE 4 296 10 5 2 SLIDING AND REAR 5 297 10 5 3 SWITCH AND MISCELLANEOUS 5 298 10 5 VEHICLE THEFT SECURITY SYSTEM 555549545884 299 10 7 RAIN SENSOR SYSTEM 2 44143 maaga dets EREERRS ES mk YET 300 CHARTS AND GRAPHS 45 ann na ns ok am e 301 11 4 EVAP TEMP SENSOR RESISTANCE TO TEMPERATURE SPECIFICATIONS kia sube ES DERUEERP LEA 29 0 9 RR ERR 301 11 2 AIR OUTLET TEMP SENSOR RESISTANCE TO TEMPERATURE SPEGIFIGATIONS P a vasak odad amet ats Ghee RR 301 11 3 WIPER SWITCH WASHER SWITCH VOLTAGE SIGNALS 302 viii 1 0 INTRODUCTION The procedures contained in this manual include all the specifications instructions and graphics needed to diagnose Sprinter body system problems The diagnostics in this manual are based on the failure condition or symptom being present at the time of di
284. odule in accordance with the Service Information WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED Perform AIRBAG VERIFICATION TEST VER 1 With the DRBIII record and erase all DTC s from all Airbag modules If equipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors L ook for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the 2 monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related tothe Driver circuits rotatethe steering wheel from stop to stop You have just attempted to simulate the conditi
285. odulethrough the Diagnostic Link Connector DLC via a K Line communicates with other modules over the Con troller Area Network CAN C Bus controls A C dutch operation controls EBL operation e controls water cycle valve operation The water cycle valve is a normally open valve meaning that it allows full engine coolant flow through the heater core when no power is delivered to the valve The ATC controls the valve with a pulse width signal The lower the percentage of the pulse width signal the more the valve is open controls Residual Heat Utilization REST func tion controls blower motor operation providing four blower speeds Low M1 M2 amp High controls recirculation air solenoid valve controls the mode door via cables controls the main power supply to the Heater Booster if equipped e uses air inlet temperature sensor air outlet tem perature sensor and evaporator temperature sensor input as well as data from other modules to maintain occupant comfort levels 3 3 1 2 SYSTEM DIAGNOSTICS Fault detection is through active and stored Diag nostic Trouble Codes DTCs e DTCs are displayed by the DRBIII9 e Active DTCs are those which currently exist in the system The condition causing the fault must be repaired in order to dear this type of DTC e Stored DTCs are those which occurred in the system since the ATC Module received the last clear diagnostic info message Testing Pre
286. oken LED of the airbag malfunction light the seat belt usage warning light will flash for 6 seconds after the function check is finished The Instrument Cluster is operated with the help of 4 buttons located below the multifunction indicator The back lighting for the instrument cluster uses yellow LED s and can be adjusted electronically to daylight and darkness GENERAL INFORMATION The instrument cluster includes a warning buzzer which sounds in addition to a warning light in some cases when The headlights are on with the ignition off and the door opened e The driver s seat belt is not fastened with the ignition on e The key is in the ignition and the door is open e Critical ASSYST information is displayed in the multifunction indicator 3 5 POWER DOOR LOCKS RKE 3 5 1 CENTRAL LOCKING The Central Locking System locks all vehicle doors if any door is locked from the inside or mechanically locked with the key from the outside However unlocking any door in that manner will only unlock that particular door The Master Door Lock Switch on the dash enables the operator to lock unlock all doors By pressing the top of the rocker type switch once all doors will lock Pressing the switch again will unlock all doors Pressing the lower part of the switch once will lock all doors except the driver door Pressing the lower part again will unlock all doors except the driver door If the Central Locking System automatic
287. olant tempera ture Flame Sensor Resistance The normal range for the Flame Sensor is from 750 ohms to 2270 ohms The value indicates the mo mentary resistance of the Flame Sensor INPUT OUTPUT STATUS Dosing Pump A status of ON indicates that the Dosing Pump is operational A status of OFF indicates the Dosing Pump is not operational Glow Pin A status of ON indicates that the Glow Pin is energized A status of OFF indicates the Glow Pin is not energized Combustion Fan A status of ON indicates that the Combustion Fan is operational A status of OFF indicates the Combustion Fan is not operational Circulation Pump A status of ON indicates that the Circulation Pump is operational A status of OFF indicates the Circulation Pump is not operational Front End Blower A status of ON indicates that the Blower Motor is operational A status of OFF indicates the Blower Motor is not operational Static Heater Signal A status of ON indicates that the heater module sees the Stationary H eating Mode ON signal after switching on the heater with the heater timer or the auxiliary heater switch A status of OFF indicates that the Stationary Heating Mode ON signal is not present at the heater module Heater Booster Mode Signal A status of ON indicates that the heater module sees the Heater Booster Mode ON signal after switching on the heater with the auxiliary heater switch A status of OFF indic
288. ols contain fixed resistive loads jumpers and adapters The fixed GENERAL INFORMATION loads are connected to cables and mounted in a storage case The cables can be directly connected to some airbag system connectors J umpers are used to convert the load tool cable connectors to the other airbag system connectors The adapters are con nected to the module harness connector to open shorting clips and protect the connector terminal during testing When using the load tool follow all of the safety procedures in the service information for disconnecting airbag system components nspect the wiring connector and terminals for damage or misalignment Substitute the airbag load tool in place of a Driver or Passenger Airbag seat belt tensioner clockspring use a jumper if needed Then follow all of the safety procedures in the service information for connecting airbag system components Read the module active DTCs If the module reports NO ACTIVE DTCs the defective components has been removed from the system and should be replaced If the DTC is still active con tinue this process until all components in the circuit have been tested Then disconnect the module con nector and connect the matching adapter to the module connector With all airbags disconnected and the adapter installed the squib wiring can be tested for open and shorted conditions 3 1 6 DIAGNOSTIC TROUBLE CODES Airbag diagnostic trouble codes consist of active and store
289. om no longer exists the repair was successful and testing is now complete 4 f the initial or another symptom exists the repair is not complete Check all pertinent Technical Service Bulletins TSBs and return to the Symptom List if necessary 5 For previously read DTCs that have not been dealt with return to the Symptom List and follow the diagnostic path for that DTC otherwise continue 6 If theEngine Control Module ECM has not been changed perform steps 7 and 8 otherwise continue with step 9 7 With the 1119 erase all diagnostic trouble codes DTCs then disconnect the 1119 8 Turn the ignition off for at least 10 seconds 9 If equipped with a Transfer Case Position Switch perform step 10 otherwise continue with step 11 10 With the ignition switch on place the Transfer Case Shift Lever in each gear position stopping for 15 seconds in each position 11 Ensure no DTCs remain by performing steps 12 through 15 12 Road test the vehicle For some of the road test go at least 64 km h 40 MPH If this test is for an A C Relay Control Circuit drive the vehicle for at least 5 minutes with the A C on 13 At some point stop the vehide and turn the engine off for at least 10 seconds then restart the engine and continue 14 Upon completion of the road test turn the engine off and check for DTCs with the DRB 111 15 If the repaired DTC has set again the repair is not complete Check for any pertinent T
290. ome time Stored diagnostic trou ble code will remain stored until erased by the If a malfunction is not active while performing a diagnostic test procedure the active code diagnostic test will not locate the source of the problem this case the stored code can indicate an area to inspect Maintain a safe distance from all airbags while performing the following inspection If no obvious problems are found erase stored codes and with the ignition on wiggle the wire harness and connec tors rotate the steering wheel from stop to stop Recheck for codes periodically as you work through the system This procedure may uncover a malfunc tion that is difficult to locate 3 2 COMMUNICATION 3 2 1 COMMUNICATION K LINES The K Lines are a group of circuits that connect each control module to the Data Link Connector DLC Each control moduleis connected to the DLC with a single K Line The DRBIII9 uses the K Line to communicate with each control module With the use of the K Lines the DRBIII is able to read each control modules DTCs sensor displays 1 05 etc If DRBIII communications with a particular control module is lost one of the possible causes could bea fault in the module s K Line NOTE It is important to note the DRBIII uses the K Lines for diagnostic monitoring functions and is no connected to the CAN data bus network Thefollowing modules that usethe K line on this vehicle are e Airbag Cont
291. on and operation Set Condition This DTC will set if the Temperature Sensor s resistance is not within the expected parameters POSSIBLE CAUSES TEMPERATURE SENSOR ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH CAUTION DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY THE HEATER PRE TEST ALWAYS PERFORM THE HEATER PRE TEST PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE VALID Turn the ignition off View repair Repair Replace the Cabin H eater Assembly or Heater Booster Assembly in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 98 CABIN Symptom UNDER VOLTAGE When Monitored and Set Condition UNDER VOLTAGE When Monitored With the engine running Set Condition This DTC will set if the heater s power supply voltage drops below 10 2 volts for longer than 20 seconds POSSIBLE CAUSES VEHICLE S BATTERY SYSTEM VEHICLE S CHARGING SYSTEM NOT OPERATING PROPERLY CABIN HEATER OR HEATER BOOSTER CONTROL UNIT FUSED B CIRCUIT HIGH RESISTANCE CABIN HEATER OR HEATER B
292. on that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning vehicle to customer 27 AIRBAG Symptom DRIVER SEAT BELT TENSIONER SHORT TO BATTERY amm When Monitored and Set Condition DRIVER SEAT BELT TENSIONER SHORT TO BATTERY When Monitored With the ignition on the ACM monitors the voltage of the Driver Seat Belt Tensioner circuits Set Condition ACM has detected high voltage on the Driver Seat Belt Tensioner circuits POSSIBLE CAUSES DRIVER SEAT BELT TENSIONER SHORT TO BATTERY DRIVER SBT LINE LINE 2 SHORT TO BATTERY ACM DRIVER SEAT BELT TENSIONER SHORT TO BATTERY STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on All NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 5 NOTE When reconnecting airbag system components Ignition must be turned off and the Battery must be disconnected WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Driver Seat Belt Tensioner connector NOTE Check connectors Clean and repair as necessary Connect the app
293. ontrol circuit for a short to the Ground circuit Perform BODY VERIFICATION TEST VER 1 GoTo 4 Turn the ignition off Remove the A C Auxiliary Fan Relay from the relay center Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the A C Auxiliary Fan Relay High Side Control circuit and the Sensor Ground circuit in the Automatic Temperature Control ATC C1 harness connector 15 the resistance below 10K ohms Yes Repair theA C Auxiliary Fan Relay High Side Control circuit for a short to the Sensor Ground circuit Perform BODY VERIFICATION TEST VER 1 Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 143 HEATING amp Symptom BLOWER STAGE 1HIGH OR OPEN ACTIVE POSSIBLE CAUSES BLOWER MOTOR BLOWER MOTOR DRIVER CIRCUIT S SHORTED TO VOLTAGE BLOWER MOTOR DRIVER CIRCUIT S OPEN BLOWER MOTOR RESISTOR BLOCK AUTOMATIC TEMPERATURE CONTROL ATC ACTION APPLICABILITY Turn the ignition off All NOTE Check connectors Clean repair as necessary Disconnect the Blower Motor harness connector Connect a fused jumper wire between Battery and Blower Motor cavity 1 Connect a jumper wire between ground and Blower Motor cavity 2 Does the Blower Motor run at full speed Yes GoTo 2 Replace the Blower Motor in accordance with the Service Infor mation Perform
294. operate as specified Yes Replace the Water Cycle Valve in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 178 INSTRUMENT CLUSTER Symptom AMBIENT TEMP SENSOR OPEN SHORT TO BATTERY POSSIBLE CAUSES AMBIENT TEMPERATURE SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE AMBIENT TEMPERATURE SENSOR AMBIENT TEMPERATURE SENSOR SIGNAL RETURN CIRCUIT OPEN AMBIENT TEMPERATURE SENSOR SIGNAL CIRCUIT OPEN INSTRUMENT CLUSTER ACTION APPLICABILITY Turn the ignition off All Disconnect the Ambient Temperature Sensor harness connector Disconnect the Instrument Cluster C1 harness connector Measure the voltage between the Ambient Temperature Sensor Signal circuit and ground Is the voltage above 0 2 volts Yes Repair the Ambient Temperature Sensor Signal drcuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 GoTo 2 Disconnect the Ambient Temperature Sensor harness connector Connect a jumper wire between the Ambient Temperature Sensor Signal and Ambient Temperature Sensor Signal Return circuit Turn the ignition on with the DRBIII9 read DTCs Does the DRBIII9 display Ambient Temperature Sensor Short to Ground Yes Replace the Ambient Temperature Sensor Perform BODY VERIFICATION TEST VER 1 GoTo 3 Turn the ignitio
295. or WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION ON THEN RECONNECT THE BATTERY With the DRBIII2 read active Airbag Control Module DTC s Does the DRBIII9 display DRIVER SEAT BELT TENSIONER CIRCUIT SHORT Yes GoTo 3 No ReplaceDriver Seat Belt Tensioner in accordance with the Service Information Perform AIRBAG VERIFICATION TEST VER 1 26 AIRBAG DRIVER SEAT BELT TENSIONER CIRCUIT SHORT Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION All OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Load Tool from the Driver Seat Belt Tensioner connector Disconnect the Airbag Control Module connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool ACM Adaptor to the Airbag Control Module connector s Measure the resistance between the Driver SBT Line 1 and Line 2 circuit at the Driver SBT connector 15 the resistance below Ohms Yes Repair Driver Seat Belt Tensioner Line 1 circuit short to Driver Seat Belt Tensioner Line 2 circuit Perform AIRBAG VERIFICATION TEST VER 1 GoTo 4 WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair ReplacetheAirbag Control M
296. ors Check all of the instrument cluster s power circuits for a short or open condition Check all of the instrument cluster s ground circuits for an open condition Were any problems found Yes Repair the power ground circuit s as necessary Perform BODY VERIFICATION TEST VER 1 GoTo 5 Turn the ignition off Disconnect the Instrument Cluster harness connectors Measure the resistance between the CAN Bus circuit and the CAN Bus circuit in the Instrument Cluster harness connector 15 the resistance 57 to 63 ohms Yes Replace the Instrument Cluster in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Repair the CAN C Bus CAN C Bus circuit s for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the CAN C Bus circuit and the CAN C Bus circuit in the Automatic Temperature Control ATC C1 harness connector Is the resistance 57 to 63 ohms Yes Replace the Automatic Temperature Control in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Repair the CAN C Bus C Bus circuit s for an open Perform BODY VERIFICATION TEST VER 1 166 HEATING amp Symptom RECIRC AIR SOLENOID CONTROL HIGH OR OPEN ACTIVE POSSIBLE CAUSES RECIRCULATED AIR SOLENOID VA
297. orted to battery Perform AIRBAG VERIFICATION TEST VER 1 Replace the Airbag Control Module in accordance with Service Information Perform AIRBAG VERIFICATION TEST VER 1 With the DRBII1 2 record and erase all from all Airbag modules If eguipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors Look for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the 2 monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related to the Driver circuits rotate the steering wheel from stop to stop You have just attempted to sim
298. ow 5 0 ohms Yes GoTo 3 No GoTo 4 Turn the ignition off Disconnect the Security System Module harness connector Measure the resistance between ground and the K CTM SSM circuit 15 the resistance below 5 0 ohms Yes Repair the K CTM SSM circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 Replace the Security System Module in accordance with the service information Perform BODY VERIFICATION TEST VER 1 108 COMMUNICATION NO RESPONSE FROM CENTRAL TIMER MODULE Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the DRBIII from the DLC Disconnect the CTM harness connectors Turn the ignition on Using a 12 volt test light connected to ground probe the K CTM SSM circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes GoTo 5 GoTo 6 Turn the ignition off Disconnect the Security System Module harness connector Turn the ignition on Using a 12 volt test light connected to ground probe the K CTM SSM circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes Repair the K CTM SSM circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 Replace the Security System Module in ac
299. paration amp Diagnostics Set the necessary system functions accordingly so that all of the following prerequisites are met prior to performing diagnostic tests on the ATC system GENERAL INFORMATION Connect the DRBIII9 to the DLC Place the shift lever in park Start the engine Set the blower to high speed Set the temperature selector to full cold Press air conditioning switch on With the DRBIII9 in Sensors verify that the A ambient temperature is above 59F 15C B refrigerant pressure is between 29 and 348 PSI 2 and 24 bar C evaporator temperature is above 36 5F 2 5 D coolant temperature is above 158F 70C When all of the prerequisites have been met use the DRBIII9 to record and erase all stored ATC DTCs and then select System Tests and run the ATC Function Test When complete check to see if any active DTCs are present If so refer to the symptom list in the Heating amp A C category for the diagnostic procedure s If there are no DTCs present yet the performance seems less than ideal use the DRBIII to look at all sensor values and the status of the various inputs and outputs to see if thereis a deficiency detected that has not fully shut down the system For additional information refer to Sensor Values and Input Output Status under Diagnostic Tips in this section and to Section 11 0 for evaporator temperature sensor and air outlet temperature sensor resistance to temperature spec if
300. perature The heater s con trol unit controls and monitors combustion opera tion through various inputs and outputs that are contained inside the heater assembly The supple mental heater connects tothe vehicle s heater hoses and uses a separate fuel supply line and fuel pump that connects to the vehicle s fuel tank Unlike the Heater Booster the Cabin Heater Assembly has an integral coolant pump which allows heater opera tion without the vehicle s engine running In addi tion a programmable timer module can also be added to this system Neither the Cabin Heater Assembly nor the Heater Booster Assembly are connected to the CAN Bus Communication be tween the heater s control unit and the DRBIII occurs through the Diagnostic Link Connector DLC via a K Line 3 3 2 2 VENTING THE HEATER S EXHAUST WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE HEATER S EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJURY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PERFORMING A COMPONENT INSPECTION REPAIR REPLACEMENT FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJURY OR DEATH CAUTION When using a powered exhaust ventilation system do not attach the exhaust ventilation hose directly to heater s exhaust pipe Too much suction can prevent heater operation When using a powered exh
301. proximate resistance should be 1 6 ohms 15 the resistance as specified for each circuit Yes Replace the Automatic Temperature Control ATC in accordance with the Service Information Remove and inspect the Blower Motor Fuse and replace it if necessary Perform BODY VERIFICATION TEST VER 1 Replace the Blower Motor Resistor Block in accordance with the Service Information Remove and inspect the Blower Motor Fuse and replace it if necessary Perform BODY VERIFICATION TEST VER 1 147 HEATING amp Symptom CABIN HEATER CONTROL HIGH OR OPEN ACTIVE POSSIBLE CAUSES CABIN HEATER OR HEATER BOOSTER CONTROL UNIT CABIN HEATER CONTROL CIRCUIT SHORTED TO VOLTAGE AUTOMATIC TEMPERATURE CONTROL ATC CABIN HEATER CONTROL CIRCUIT OPEN AUTOMATIC TEMPERATURE CONTROL ATC APPLICABILITY Turn the ignition on All Verify that the Cabin Heater or Heater Booster is switched off Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Cabin Heater or Heater Booster harness connector Connect a 12 volt test light between the Cabin Heater Control circuit and ground Turn the ignition on The test light should operate as follows With the Cabin Heater or Heater Booster switched off the test light should not illuminate Press the Cabin Heater or Heater Booster switch on The test light should illuminate brightly Does the test light function as specified Yes Light Onl
302. r Seat Belt Tensioner circuits POSSIBLE CAUSES PASSENGER SEAT BELT TENSIONER CIRCUIT OPEN PASSENGER SEAT BELT TENSIONER LINE 1 OR LINE 2 CIRCUIT OPEN ACM PASSENGER SEAT BELT TENSIONER CIRCUIT OPEN STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on All NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 5 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery must be disconnected WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Passenger Seat Belt Tensioner connector NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool to the Passenger Seat Belt Tensioner connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION ON THEN RECONNECT THE BATTERY With the DRBIII9 read the active Airbag Control Module 5 Does the DRBIII9 display PASSENGER SBT CIRCUIT OPEN Yes GoTo 3 Passenger Seat Belt Tensioner in accordance with the Service nformation Perform AIRBAG VERIFICATION TEST VER 1 47 AIRBAG PASSENGER SEAT BELT TENSIONER CIRCUIT OPEN Continued ACTION APPLICABILITY WARNING TO
303. r Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors Look for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related to the Driver circuits rotate the steering wheel from stop to stop You have just attempted to simulate the condition that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning vehicle to customer 35 AIRBAG Symptom DRIVER SQUIB 1 CI
304. response notification the ACM is hardwired to the Central Timer module CTM and Engine Control Module ECM When a deployment occurs the ACM provides a 50ms 10 0 volt pulse to the CTM and ECM When theAccident Report notification signal is received the CTM un locks the door locks and the ECM stalls the engine TheAccident signal will set a DTC in the CTM and the door locks will not work until the DTC has been erased The ECM will set a DTC if the Accident Report circuit is shorted to battery voltage The ACM saves the deployment record and after three deployments the ACM must be replaced The DRBIII9 can be used to test the Accident Report Notification feature select the SY STEM TEST from the ACM main menu Then select theAnalog Crash Output System Test TheACM is hardwired the Instrument Cluster MIC to control Warning Indicator SRS indicator When DTCs becomes activate the ACM illuminates the Warning Indicator by pulling the indicator circuit low The SRS indicator is the only point at which the customer can observe symptoms of a system malfunction As part of the system test the ACM illuminates the Warning Indicator on for 4 0 second bulb test After the lamp check if the indicator turns off it means that the ACM has checked the system and found it to be free of discernible malfunctions NON CRITICAL DTCs If the lamp comes on and stays on for a period longer than 4 0 seconds about 10 0 seconds is usually a stored DTC
305. rform BODY VERIFICATION TEST VER 1 Repair the Sensor Ground circuit for an open Perform BODY VERIFICATION TEST VER 1 157 HEATING amp Symptom EVAP TEMP SENSOR SHORTED LOW ACTIVE POSSIBLE CAUSES EVAPORATOR TEMPERATURE SENSOR EVAP TEMP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND EVAP TEMP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND CIRCUIT EVAP TEMP SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT AUTOMATIC TEMPERATURE CONTROL ATC ACTION APPLICABILITY Turn the ignition off All Disconnect the Evaporator Temperature Sensor harness connector Turn the ignition on With the DRBIII2 record and erase Automatic Temperature Control DTCs Turn the ignition off wait 5 seconds then turn the ignition on With the DRBIIIS9 read the Automatic Temperature Control DTCs Does the DRBIII9 display EVAP TEMP SENSOR HIGH OR OPEN Yes Replace the Evaporator Temperature Sensor in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between ground and the Evaporator Temperature Sensor Signal circuit Is the resistance below 10k ohms Yes Repair the Evaporator Temperature Sensor Signal circuit for short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 3 Turn the ignition off Disconnect the Automatic Temperature Control ATC C1 ha
306. rm HEATER VERIFICATION TEST VER 1 90 CABIN Symptom List FLAME SENSOR OPEN FLAME SENSOR SHORTED GLOW PIN OPEN GLOW PIN SHORTED Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be FLAME SENSOR OPEN When Monitored and Set Condition FLAME SENSOR OPEN When Monitored During heater activation and operation Set Condition This DTC will set if the Flame Sensor s resistance is not within the expected parameters FLAME SENSOR SHORTED When Monitored During heater activation and operation Set Condition This DTC will set if the Flame Sensor s resistance is not within the expected parameters GLOW PIN OPEN When Monitored During heater activation and operation Set Condition This DTC will set if the Glow Pin s resistance is not within the expected parameters GLOW PIN SHORTED When Monitored During heater activation and operation Set Condition This DTC will set if the Glow Pin s resistance is not within the expected parameters POSSIBLE CAUSES FLAME SENSOR CABIN FLAME SENSOR OPEN Continued ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT IN
307. rness connector Measure the resistance between the Evaporator Temperature Sensor Signal circuit and the Ground circuit Is the resistance below 10k ohms Yes Repair the Evaporator Temperature Sensor Signal circuit for a short to the Ground circuit Perform BODY VERIFICATION TEST VER 1 GoTo 4 158 HEATING amp EVAP TEMP SENSOR SHORTED LOW ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the Automatic Temperature Control ATC C1 harness connector Disconnect the Evaporator Temperature Sensor harness connector Measure the resistance between the Evaporator Temperature Sensor Signal circuit and the Sensor Ground circuit Is the resistance below 10k ohms Yes Repair the Evaporator Temperature Sensor Signal circuit for short to the Sensor Ground circuit Perform BODY VERIFICATION TEST VER 1 Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 159 HEATING amp Symptom NO COMMUNICATION BUS ACTIVE When Monitored and Set Condition NO COMMUNICATION BUS ACTIVE When Monitored With the ignition on Set Condition This DTC will set if the Automatic Temperature Control ATC fails to receive all module messages POSSIBLE CAUSES CAN CIRCUITS SHORTED TO VOLTAGE MODULE SHORT TO VOLTAGE CAN CIRCUITS SHORTED TO GROUND MODULE SHORT T
308. rol Module ACM e Automatic Temperature Control ATC e Cabin Heater Module CHM e Central Timer Module CTM Controller Antilock Brake CAB e Engine Control Module ECM e Heater Booster Module HBM Instrument Cluster IC Shifter Assembly SA Security System Module SSM Sentry Key Remote Entry Module SKREEM e Transmission Control Module TCM 3 2 2 CAN BUS The bus controller area network is data bus system specifically design for inter module communication on this vehide The CAN bus con sists of a special twisted two core cable Control modules are connected to this twisted pair The CAN bus incorporates two terminating resistors One terminator is built into the Engine Control Module ECM and theother is built into the Sentry Key Remote Entry Module SKREEM Each resis tor has a value of 120 ohms The resistor condition can be confirmed by disconnecting the control mod ule and measuring the resistance value at the appropriate control module pins This measure ment should read 120 ohms The two CAN circuits CAN Bus and CAN Bus are bridged these two terminating resistors when all control modules are connected to the bus These two resis tors are connected to the CAN bus network in parallel The measurement between the two twisted CAN circuits with both the ECM and SKREEM connected should measure a value of 60 ohms The CAN bus is bi directional This means that each conn
309. rom stop to stop You have just attempted to simulate the condition that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning vehicle to customer 61 AIRBAG Symptom PASSENGER SOUIB 1 SHORT TO BATTERY When Monitored and Set Condition PASSENGER SQUIB 1 SHORT TO BATTERY When Monitored With the ignition on the ACM monitors the voltage the Passenger Squib 1 circuits Set Condition When the ACM detects voltage on the Passenger Squib 1 circuits POSSIBLE CAUSES PAB SQUIB 1 CIRCUITS SHORT TO BATTERY PAB SQUIB 1 LINE 1 LINE 2 SHORT TO BATTERY ACM PAB SQUIB 1 CIRCUIT SHORT TO BATTERY STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on All NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 5 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery must be disconnected 62 AIRBAG PASSENGER SQUIB 1 SHORT TO BATTERY Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL URY OR DEATH DISCONNECT THE All BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Passenger Airba
310. ropriate Load Tool to the Driver Seat Belt Tensioner connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION ON THEN RECONNECT THE BATTERY With the DRBIII9 read the active Airbag Control Module 5 Does the DRBIII9 display DRIVER SEAT BELT TENSIONER SHORT BAT TERY Yes GoTo 3 No Replace Driver Seat Belt Tensioner in accordance with the Service Information Perform AIRBAG VERIFICATION TEST VER 1 28 AIRBAG DRIVER SEAT BELT TENSIONER SHORT TO BATTERY Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION All OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Load Tool from the Driver Seat Belt Tensioner connector Disconnect the Airbag Control Module Connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool ACM Adaptor to the Airbag Control Module connector s WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION ON THEN RECONNECT THE BATTERY Measure the voltage of the Driver SBT Line 1 and Line 2 circuits between the Driver SBT connector and ground 15 there any voltage present Yes Repair Driver Seat Belt Tensioner 1 or Line 2 circuit short to battery Perform AIRBAG VERIFICATION TEST VER 1 GoTo 4 WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESU
311. round Perform AIRBAG VERIFICATION TEST VER 1 GoTo 4 WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair ReplacetheAirbag Control Module in accordance with the Service information Perform AIRBAG VERIFICATION TEST VER 1 With the DRBIII record and erase all DTC s from all Airbag modules If equipped with Passenger Airbag On Off switch read the DTC s in all switch positions If any ACTIVE codes are present they must be resolved before diagnosing any stored codes WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Using the wiring diagram schematic as a guide inspect the wiring and connectors L ook for chaffed pierced pinched or partially broken wires and broken bent pushed out spread corroded or contaminated terminals The following additional checks may assist you in identifying a possible intermittent problem Reconnect any disconnected components and harness connector WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the 2 monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FR
312. rs Clean repair as necessary Disconnect the Refrigerant Pressure Sensor harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the 5 Volt Supply circuit and the Refrigerant Pressure Sensor Feedback circuit Is the resistance below 10k ohms Yes Repair the 5 Volt Supply circuit for a short to the Refrigerant Pressure Sensor F eedback circuit Perform BODY VERIFICATION TEST VER 1 GoTo 4 171 HEATING amp REFRIG PRESS SENSOR HIGH OPEN ACTIVE Continued ACTION APPLICABILITY Turn the ignition off NOTE Check connectors Clean repair as necessary Reconnect the Automatic Temperature Control ATC C1 harness connector Turn the ignition on While back probing measure the voltage between the 5 Volt Supply drcuit and ground While back probing measure the voltage between the Refrigerant Pressure Sensor Feedback circuit and ground 15 the voltage above 5 3 volts on either circuit Yes Replace theAutomatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 GoTo 5 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Refrigerant Pressure Sensor harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance of the 5 Volt Supply circuit between the Automatic Temper ature Control
313. s Does the DRBIII9 display REFRIG PRESS SENSOR SHORTED LOW Yes GoTo 2 No Replace the Refrigerant Pressure Sensor in accordance with the Service nformation Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between ground and the 5 Volt Supply circuit Is the resistance below 10k ohms Yes Repair the 5 Volt Supply circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 3 173 HEATING amp REFRIG PRESS SENSOR SHORTED LOW ACTIVE Continued ACTION APPLICABILITY Turn the ignition off Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the 5 Volt Supply circuit and the Ground circuit Is the resistance below 10k ohms Yes Repair the 5 Volt Supply circuit for a short to the Ground circuit Perform BODY VERIFICATION TEST VER 1 No 4 Turn the ignition off Disconnect the Refrigerant Pressure Sensor harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the 5 Volt Supply circuit and the Sensor Ground circuit Is the resistance below 10k ohms Yes Repair the 5 Volt Supply circuit for a short to the Sensor Ground circuit Perform BODY VERIFICATION TEST VER 1 GoTo 5 Turn the ignition off All Disconnect the
314. s above 10 0 volts and the module is connected Set Condition Whenever the CTM senses battery voltage for over 50ms on the Enhanced Accident Report Driver circuit this code will set If the ACM senses a near deployment impact not enough to fire the airbag this code may set POSSIBLE CAUSES DTC PRESENT POWERTRAIN DTC ACTION APPLICABILITY With the DRBIIIS record and erase All Cycle the ignition switch from ON to OFF to With the DRBIII9 read Operate the Door Locks several times while observing the DRBIII Wait 10 seconds Does the DRBIII9 display THE ACM HAS UNLOCKED THE DOORS Yes Refer tosymptom P1681 ACM CIRCUIT FAULT in the POWER TRAIN SERVICE INFORMATION Perform BODY VERIFICATION TEST VER 1 The condition that set this code is not present at this time By erasing the DTC the door locks should work properly at this time Perform BODY VERIFICATION TEST VER 1 208 POWER DOOR LOCKS RKE Symptom UNKNOWN TROUBLE CODE UNKNOWN DTC TYPE 2 When Monitored and Set Condition UNKNOWN TROUBLE CODE UNKNOWN DTC TYPE 2 When Monitored Whenever the battery voltage is above 10 0 volts and the module is connected Set Condition The SKREEM has detected a code but is confused as to which one it is POSSIBLE CAUSES DTC PRESENT SKREEM SHORTED ACTION APPLICABILITY With the DRBIIIS record and erase All Cycle the ignition switch from ON to OFF to ON With the DRBIII read
315. s equipped with VTSS the Security System Module will be connected in series between the SKREEM and the Confirmation of the RKE Lock Unlock state is accomplished via theturn signals When the vehide is locked via RKE the turn signals will flash three times When it is unlocked via RKE the turn signals will flash one time If the vehicle has been unlocked via RKE and no door is opened within 40 seconds the entire vehide will be locked again automatically If a transmitter fob is operated more than 255 times in succession beyond the range of the receiver SKREEM the portion of the key will become inoperative In order to put it back in synchroniza tion it will be necessary to have ALL the other transmitters that are used with this vehicle avail able and follow the following procedure 1 Cyde the ignition on and off 2 times within 6 seconds leave in off position 2 Press the lock or unlock button of the disabled transmitter within 3 seconds of turning the ignition off 3 Press any button lock or unlock 3 more times within 6 seconds 4 Wait 10 seconds 5 Press any button of ALL other transmitters belonging to this vehicle at least once within the next 20 seconds For problems related to the Immobilizer function of the SKREEM see Service Information 3 5 3 AUTO DOOR LOCKS Whenever the engineis started the CTM receives a message to lock all doors except the drivers door This is accomplished through t
316. t the engine Allow the engine to idle With the DRBIII monitor for Cabin Heater Module DTCs while performing the following step NOTE Do not disconnect the vehicle s battery or the heater s main power supply while the heater is in operation or in run down mode Failure to follow these instructions can result in excess emissions from the heater during heater operation Switch the Cabin Heater on If necessary allow the heater to run through at least one cyde of operation approximately 10 minutes and then turn the heater off Turn the engine off Does the DRBIII9 display CIRC PUMP CONTROL OPEN Yes Replace the Cabin Heater Assembly in accordance with the Service Information Reinstall the original Circulation Pump Relay Perform HEATER VERIFICATION TEST VER 1 Replace the original Circulation Pump Relay in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 73 CABIN Symptom CIRC PUMP CONTROL SHORTED POSSIBLE CAUSES CIRCULATION PUMP RELAY CIRCULATION PUMP RELAY HIGH SIDE CONTROL CIRCUIT SHORTED TO GROUND PUMP RELAY HIGH SIDE CONTROL CKT SHORTED TO PUMP RELAY GROUND CKT CABIN HEATER CONTROL UNIT ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH CAUTION DO NOT
317. t this time Using the wiring diagram schematic as a guide inspect the wiring and connectors for an intermittent condition Perform BODY VERIFICATION TEST VER 1 With the DRBIII check the TCM ABS and theATC Module for this same or similar ECM message error DTC 15 the same or similar DTC set in the other modules Yes GoTo 3 GoTo 5 help isolate an open or shorted condition Repair as necessary Perform BODY VERIFICATION TEST VER 1 GoTo 4 Turn the ignition off to the lock position Disconnect the ECM harness connector Measure the resistance between the CAN Bus circuit and the CAN Bus circuit in the ECM harness connector Is the resistance 120 ohms 3 0 ohms Yes Replace the ECM in accordance with the service information Perform BODY VERIFICATION TEST VER 1 No RepairtheCAN C Bus or the CAN C Bus circuit for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off All Disconnect the ECM harness connector Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located in the service information to 190 INSTRUMENT CLUSTER NO CAN COMMUNICATION WITH ECM Continued ACTION APPLICABILITY Turn the ignition off to the lock position All Disconnect the Instrument Cluster C1 harness connector Reconnect the ECM harness connector Measure the resistance between the CAN Bus circuit and the C
318. tance between the Circulation Pump Relay High Side Control circuit and the Ground drcuit Circulation Pump Relay connector terminal 86 and 85 Is the resistance below 10K ohms Yes Repair the Circulation Pump Relay High Side Control circuit for a short tothe Ground drcuit Perform HEATER VERIFICATION TEST VER 1 Replace the Cabin Heater Assembly in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 75 CABIN Symptom List COMBUST FAN SHORTED COMBUST FAN SPEED INCORRECT COMBUSTION FAN OPEN Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be COMBUST FAN SHORTED POSSIBLE CAUSES COMBUSTION AIR FAN ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION RE PAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH CAUTION DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY THE HEATER PRE TEST ALWAYS PERFORM THE HEATER PRE TEST PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE VALID Turn the ignition off View repair Repair Replace the Cabin Heater Assembly or Heater Booster Assembl
319. the DRBIII erase the Cabin Heater Module s DTCs Start the engine Allow the engine to idle With the DRBIII monitor for Cabin Heater Module DTCs while performing the following step NOTE Do not disconnect the vehicle s battery or the heater s main power supply while the heater is in operation or in run down mode Failure to follow these instructions can result in excess emissions from the heater during heater operation Switch the Cabin Heater on I f necessary allow the heater to run through at least one cyde of operation approximately 10 minutes and then switch the heater off Turn the engine off Does the DRBIII9 display FAN STAGE 1 RELAY CONTROL OPEN Yes Replace the Cabin Heater Assembly in accordance with the Service I nformation Reinstall the original Fan Stage 1 Relay Perform HEATER VERIFICATION TEST VER 1 Replace the original Fan Stage 1 Relay in accordance with the Service I nformation Perform HEATER VERIFICATION TEST VER 1 84 CABIN Symptom FAN STAGE 1RELAY CONTROL SHORTED POSSIBLE CAUSES FAN STAGE 1 RELAY FAN STAGE 1 RELAY HIGH SIDE CONTROL CIRCUIT SHORTED TO GROUND FAN STAGE 1 RELAY HIGH SIDE CONTROL CIRCUIT SHORTED TO GROUND CIRCUIT CABIN HEATER CONTROL UNIT ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCT
320. the DRBIII9 display PASSENGER SBT SHORT TO GROUND Yes GoTo 3 Passenger Seat Belt Tensioner in accordance with the Service nformation Perform AIRBAG VERIFICATION TEST VER 1 54 AIRBAG PASSENGER SEAT BELT TENSIONER SHORT TO GROUND Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN IGNITION All OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING Disconnect the Load Tool from the Passenger Seat Belt Tensioner connector Disconnect the Airbag Control Module Connector s NOTE Check connectors Clean and repair as necessary Connect the appropriate Load Tool ACM Adaptor to the Airbag Control Module connector s Measure the resistance of the Passenger Seat Belt Tensioner Line 1 and Line 2 circuits between the Passenger SBT connector and ground 15 the resistance below Ohms on either circuit Yes Repair the Passenger Seat Belt Tensioner Line 1 Line 2 short to ground Perform AIRBAG VERIFICATION TEST VER 1 GoTo 4 WARNING IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME IT MUST BE REPLACED FAILURE TO TAKE THE PROPER PRE CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJ URY OR DEATH If there are no possible causes remaining view repair Repair ReplacetheAirbag Control Module in accordance with the Service Information Perform AIRBAG VERIFICATION TEST VER 1 With the DRBIII record and
321. the active ATC DTCs Does the DRBIII2 display CABIN HEATER CONTROL SHORTED LOW Yes GoTo 2 Cabin Heater Assembly the Heater Booster assem bly in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Cabin Heater or Heater Booster harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between ground and the Cabin Heater Control circuit Is the resistance below 30k ohms Yes Repair the Cabin Heater Control circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 3 150 HEATING amp CABIN HEATER CONTROL SHORTED LOW ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the Cabin Heater or Heater Booster harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance between the Cabin Heater Control circuit and the Ground circuit in the Automatic Temperature Control ATC C1 harness connector 15 the resistance below 30k ohms Yes Repair the Cabin Heater Control circuit for a short to the Ground circuit Perform BODY VERIFICATION TEST VER 1 GoTo 4 Turn the ignition off Disconnect the Cabin Heater or Heater Booster harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Measure the resistance betwe
322. the limits shown in the table below FUNCTION INPUT LIMIT Volts 0 500 peak volts AC 0 500 volts DC Ohms Resistance 0 1 12 megaohms Frequency Measure 0 10 kHz Frequency Generated Temperature 58 1100 F 50 600 Ohms cannot be measured if voltage is present Ohms can be measured only on a non powered circuit Voltage between any terminal and ground must not exceed 500v DC or 500v peak AC Use caution when measuring voltage above 25v DC or 25vAC Use the low current shunt to measure circuits up to 10A Use the high current clamp to measure circuits exceeding 10A When testing for the presence of voltage or current make sure the meter is functioning correctly Take a reading of a known voltage or current before accepting a zero reading When measuring current connect the meter in series with the load Disconnect the live test lead before disconnect ing the common test lead When using the meter function keep the DRBIII away from spark plug or coil wires to avoid measuring error from outside interfer ence 4 3 WARNINGS 4 3 1 VEHICLE DAMAGE WARNINGS Before disconnecting any control module make sure the ignition is off Failure to do so could damage the module When testing voltage or continuity at any control module use the terminal side not the wire end of the connector Do not probe a wire through the insulation this will damage it and eventually cause
323. the test light illuminate brightly Yes Repair the K TCM RADIO circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 Replace the Transmission Control Module in accordance with the service information Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Radio harness connectors Disconnect the 2 from the DLC Measure the resistance of the K TCM RADIO circuit between the Radio connector and the DLC 15 the resistance below 5 0 ohms Yes Replace the Radio in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 No Repair the K TCM RADIO circuit for an open Perform BODY VERIFICATION TEST VER 1 119 COMMUNICATION Symptom NO RESPONSE FROM SECURITY SYSTEM MODULE POSSIBLE CAUSES CHECK POWERS AND GROUNDS TO THE SECURITY SYSTEM MODULE CENTRAL TIMER MODULE K CTM SSM CIRCUIT SHORTED TO GROUND CENTRAL TIMER MODULE K CTM SSM CIRCUIT SHORTED TO VOLTAGE K CTM SSM CIRCUIT OPEN SECURITY SYSTEM MODULE ACTION APPLICABILITY Turn the ignition off All Disconnect the Security System Module harness connectors Check each power and ground circuit to the module Were any problems found Yes Refer tothe wiring diagrams located in the service information to help isolate an open or shorted condition Repair as necessary Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition off Disconnect the SSM
324. tion and the mode control to the floor position 15 If a fuel system service requiring fuel to drain out of the heater s fuel line was performed prime the heater s Dosing Pump in accordance with the Service Information 16 With the DRBIII record and erase all DTCs from the Cabin Heater Module or Heater Booster Module Turn the ignition off wait 5 seconds then turn start the engine 17 Allow the engine to idle 18 NOTE Do not disconnect the vehicle s battery or the heater s main power supply while the heater is in operation or in run down mode Failure to follow these instructions can result in excess emissions from the heater during heater operation 19 Switch the Cabin Heater or Heater Booster on Allow the heater to run through at least one cycle of operation approximately 10 minutes and then turn the heater off 20 With the DRBIII read the Cabin Heater or Heater Booster Module s DTC 21 Turn the engine off Are any DTC s present or is the original condition still present Yes Repair is not complete refer to the appropriate symptom Repair is complete 246 APPLICABILITY VERIFICATION TESTS Verification Tests Continued NAG1 TRANSMISSION VERIFICATION TEST VER 1 APPLICABILITY 1 Reconnect any disconnected components All 2 Connect the DRBIII9 to the Data Link Connector 3 With the DRBIII erase ABS DTCs 4 With the DRBIII9 erase ECM DTCs 5 With the DRBIII9 erase Transmiss
325. tly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes GoTo 5 GoTo 6 Turn the ignition off Disconnect the Automatic Temperature Control harness connectors Turn the ignition on Using a 12 volt test light connected to ground probe the K IC ATC HBM CHM circuit While monitoring the test light disconnect each module IC HBM CHM at a time NOTE The vehicle may not be equipped with all the above modules NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly with all the above modules disconnected Yes Repair the K IC HBM CHM circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 Replace the Module that when disconnected the short was eliminated in accordance with the service information Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Automatic Temperature Control harness connectors Disconnect the DRBIII9 from the DLC Measure the resistance of the K IC ATC HBM CHM circuit between the ATC connector and the DLC 15 the resistance below 5 0 ohms Yes Replace the Automatic Temperature Control in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 Repair the K IC HBM CHM circuit for an open Perform BODY VE
326. tor WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI TION ON THEN RECONNECT THE BATTERY With the DRBIII9 monitor active codes as you work through the following steps WARNING TO AVOID PERSONAL INJ URY OR DEATH MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS Wiggle the wiring harness and connectors of the related airbag circuit or component If codes are related to the Driver circuits rotate the steering wheel from stop to stop You have just attempted to simulate the condition that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List No problem found at this time Erase all codes before returning vehicle to customer 67 AIRBAG Symptom AIRBAG WARNING INDICATOR FLASHING POSSIBLE CAUSES INITIALIZE AIRBAG CONTROL MODULE ACTIVE CODE PRESENT ACTION APPLICABILITY Erase all DTCs All Cycle the ignition switch OFF then to ON With the DRBIII read the active and stored DTCs Are all DTC s erased Yes With the DRBIIIS perform Airbag Control Module initialization to configure the ACM for this vehicle Perform AIRBAG VERIFICATION TEST VER 1 Select appropriate symptom from Symptom List 68 CABIN Symptom HEATER PRE TEST POSSIBLE CAUSES NO RESPONSE FROM CABIN HEATER MODULE OR HEATER BOOSTER MODULE CABIN HEATER MODULE OR HEATER BOOSTER MODULE DTC S PRESENT AUTO
327. ts Yes 4 Repair the Fused B circuit for an open Perform BODY VERIFICATION TEST VER 1 Disconnect the Intrusion Sensor No 1 connector Measure the resistance of the Ground circuit at the Intrusion Sensor connector 15 the resistance below 5 0 ohms Yes GoTo 5 Repair the Ground circuit for an open Perform BODY VERIFICATION TEST VER 1 Turn the ignition off Disconnect the Security System Module C2 connector Disconnect the Intrusion Sensor No 1 connector Measure the resistance between ground and the Intrusion Sensor 1 Signal circuit Is the resistance below 5 0 ohms Yes Repair the Intrusion Sensor 1 Signal wire for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 6 Yes GoTo 7 Repair the Intrusion Sensor 1 Signal wire for an open Perform BODY VERIFICATION TEST VER 1 Disconnect the Intrusion Sensor No 1 connector Disconnect the Security System Module C2 connector Measure the resistance between ground and the Intrusion Sensor Interface circuit 15 the resistance below 5 0 ohms Yes Repair the Intrusion Sensor Interface circuit for a short to ground Perform BODY VERIFICATION TEST VER 1 GoTo 8 Disconnect the Intrusion Sensor No 1 connector Disconnect the Security System Module C2 connector Measure the resistance of the ntrusion Sensor Interface circuit between the SSM C2 connector and the Intrusion Sensor No
328. ture Control ATC fails to receive all messages from the ECM POSSIBLE CAUSES CAN C BUS CIRCUIT S SHORTED OR OPEN ENGINE CONTROL MODULE DTC S PRESENT ENGINE CONTROL MODULE S POWER GROUND CIRCUIT S SHORTED OR OPEN ENGINE CONTROL MODULE BUS C BUS CIRCUIT S OPEN TO ENGINE CONTROL MODULE AUTOMATIC TEMPERATURE CONTROL ATC CAN BUS C BUS CIRCUIT S OPEN TO AUTOMATIC TEMPERATURE CONTROL ACTION APPLICABILITY Turn the ignition on All With the DRBIII9 read Automatic Temperature Control DTCs Does the DRBIII9 display NO COMMUNICATION BUS Yes Refer to the Communication category for the related symptom Perform BODY VERIFICATION TEST VER 1 GoTo 2 Turn the ignition on With the DRBIII read Engine Control Module DTCs Does the DRBIII9 display any DTCs Yes Refer to Powertrain Diagnostic information for the related symp tom s Perform BODY VERIFICATION TEST VER 1 GoTo 3 Turn the ignition on With the DRBIII9 check the TCM IC and ABS module for the same or similar Communication with Engine Control Module DTC Does the DRBIII9 display same or similar DTC in TCM IC amp ABS module Yes GoTo 4 No GoTo 6 163 HEATING amp NO COMMUNICATION WITH ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the Engine Control Module harness connectors Check all of the engine control module s power c
329. ulate the condition that initially set the trouble code message Did the DTC become active Yes Select appropriate symptom from Symptom List problem found at this time Erase all codes before returning vehicle to customer 41 AIRBAG Symptom DRIVER SQUIB 1 SHORT TO GROUND When Monitored and Set Condition DRIVER SQUIB 1SHORT TO GROUND When Monitored With the ignition on the ACM monitors the resistance of the Driver Squib 1 circuits Set Condition When theACM detects a short to ground in either Driver Squib 1 circuits POSSIBLE CAUSES DRIVER AIRBAG SQUIB 1 SHORT TO GROUND CLOCKSPRING DRIVER SQUIB 1 SHORT TO GROUND DRIVER SQUIB 1 LINE 1 LINE 2 SHORTED TO GROUND ACM DRIVER SOUIB 1 SHORT TO GROUND STORED CODE OR INTERMITTENT CONDITION ACTIVE CODE PRESENT ACTION APPLICABILITY Turn the ignition on All NOTE Ensure the battery is fully charged NOTE For the purpose of this test the AECM and ORC modules will be referred to as an ACM SELECT ACTIVE or STORED DTC ACM ACTIVE DTC GoTo 2 ACM STORED DTC GoTo 6 NOTE When reconnecting Airbag system components the ignition must be turned off and the battery must be disconnected 42 AIRBAG DRIVER SQUIB 1SHORT TO GROUND Continued ACTION APPLICABILITY WARNING TO AVOID PERSONAL INJ URY OR DEATH TURN THE IGNI AII TION OFF DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE FORE PROCEEDING Disconnect the Dr
330. ure Control ATC in accordance with the Service nformation Perform BODY VERIFICATION TEST VER 1 Repair the Cabin Heater Control circuit for an open Perform BODY VERIFICATION TEST VER 1 149 HEATING amp Symptom CABIN HEATER CONTROL SHORTED LOW ACTIVE POSSIBLE CAUSES CABIN HEATER OR HEATER BOOSTER CONTROL UNIT CABIN HEATER CONTROL CIRCUIT SHORTED TO GROUND CABIN HEATER CONTROL CIRCUIT SHORTED TO GROUND CIRCUIT CABIN HEATER CONTROL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT AUTOMATIC TEMPERATURE CONTROL ATC ACTION APPLICABILITY Turn the ignition off All Disconnect the Cabin Heater or Heater Booster harness connector NOTE of the following criteria must be met in order to successfully run the ATC Function Test Place the shift lever in Park Turn the ignition on With the record and erase ATC Start the engine Allow the engine to reach normal operating temperature Set the blower to high speed Press the Air Conditioning switch With the DRBIIIS verify that the ambient temperature is above 59 F 15 the refrigerant pressure is between 29 and 348 PSI 2 and 24 bar the evaporator temperature is above 36 5 F 2 5 C and the coolant temperature is above 158 F 70 C With the DRBIII9 in Automatic Temperature Control ATC select System Tests and select ATC Function Test When the ATC Function Test is complete proceed as follows With the DRBIII9 read
331. w 5 0 ohms Yes GoTo 3 GoTo 4 Turn the ignition off Disconnect the Shifter Assembly harness connector Measure the resistance between ground and the K ABS Shifter Assembly circuit 15 the resistance below 5 0 ohms Yes Repair the K ABS Shifter Assembly circuit for a short to ground Perform ABS VERIFICATION TEST VER 1 Replace the Shifter Assembly in accordance with the service information Perform ABS VERIFICATION TEST VER 1 110 COMMUNICATION NO RESPONSE FROM CONTROLLER ANTILOCK BRAKE Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the DRBIII from the DLC Disconnect the CAB harness connector Turn the ignition on Using a 12 volt test light connected to ground probe the K ABS Shifter Assembly circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes GoTo 5 GoTo 6 Turn the ignition off Disconnect the Shifter Assembly harness connector Turn the ignition on Using a 12 volt test light connected to ground probe the K ABS Shifter Assembly circuit NOTE The test light must illuminate brightly Compare the brightness to that of a direct connection to the battery Does the test light illuminate brightly Yes Repair the K ABS Shifter Assembly circuit for a short to voltage Perform ABS VERIFICATION TEST VER
332. w 5 0 ohms Yes Replace the Cabin Heater Assembly or Heater Booster Assembly in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 Repair the Ground circuit for an open Perform HEATER VERIFICATION TEST VER 1 80 CABIN Symptom DOSING PUMP SHORTED POSSIBLE CAUSES DOSING PUMP SHORTED TO GROUND DOSING PUMP CONTROL CIRCUIT SHORTED TO GROUND CIRCUIT DOSING PUMP CONTROL CIRCUIT SHORTED TO GROUND CABIN HEATER OR HEATER BOOSTER CONTROL UNIT ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION RE PAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH CAUTION DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY THE HEATER PRE TEST ALWAYS PERFORM THE HEATER PRE TEST PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE VALID Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Dosing Pump harness connector Turn the ignition on Verify that the Cabin Heater or Heater Booster is switched off Set the blend control to the max heat position and the mode control to the floor position With the er
333. y in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 76 CABIN Symptom CONTROL UNIT FAULTY When Monitored and Set Condition CONTROL UNIT FAULTY When Monitored During heater activation and operation Set Condition This DTC will set if the heater s control unit detects an internal failure in its microprocessor memor y POSSIBLE CAUSES CABIN HEATER OR HEATER BOOSTER CONTROL UNIT ACTION APPLICABILITY WARNING NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All THAT DOES NOT HAVE EXHAUST VENTILATION FACILITIES ALWAYS VENT THE EXHAUST WHEN OPERATING THE HEATER FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH WARNING ALLOW THE HEATER ASSEMBLY TO COOL BEFORE PER FORMING A COMPONENT INSPECTION REPAIR REPLACE MENT FAIL URE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJ URY OR DEATH CAUTION DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY THE HEATER PRE TEST ALWAYS PERFORM THE HEATER PRE TEST PRIOR TO PERFORMING ANY OTHER TEST FOR THE RESULT TO BE VALID Turn the ignition off View repair Repair Replace the Cabin H eater Assembly or H eater Booster Assembly in accordance with the Service Information Perform HEATER VERIFICATION TEST VER 1 77 CABIN Symptom DOSING PUMP OPEN When Monitored and Set Condition DOSING PUMP OPEN When Monitored With the ignition on Set Condition This DTC will set
334. y Illuminates w Switch On Replace the Cabin Heater Assembly or the Heater Booster Assem bly in accordance with the Service nformation Perform BODY VERIFICATION TEST VER 1 No Light Illuminates w Switch Off GoTo 2 No Light Will Not Illuminate GoTo 3 Turn the ignition off NOTE Check connectors Clean repair as necessary Disconnect the Cabin Heater or Heater Booster harness connector Disconnect the Automatic Temperature Control ATC C1 harness connector Turn the ignition on Measure the voltage of the Cabin Heater Control circuit Is the voltage above 0 2 volts Yes Repair the Cabin Heater Control circuit for a short to voltage Perform BODY VERIFICATION TEST VER 1 Replace the Automatic Temperature Control ATC in accordance with the Service Information Perform BODY VERIFICATION TEST VER 1 148 HEATING amp CABIN CONTROL HIGH OPEN ACTIVE Continued ACTION APPLICABILITY Turn the ignition off All NOTE Check connectors Clean repair as necessary Disconnect the Automatic Temperature Control ATC C1 harness connector Disconnect the Cabin Heater or Heater Booster harness connector Measure the resistance of the Cabin Heater Control circuit between the Automatic Temperature Control ATC C1 harness connector and the Cabin Heater or Heater Booster harness connector as applicable 15 the resistance below 5 0 ohms Yes Replace theAutomatic Temperat
335. ymptom 7 NOTE If the CAB HCU was replaced ensure the CAB has been initialized 8 NOTE If the SKREEM or ECM was replaced refer to the service information for proper programming procedures 9 NOTE For Sensor Circuit Signal and Pump Motor faults the CAB must sense all 4 wheels at 12 km h 8 mph before it will extinguish the ABS Indicator 10 If there no DTC s present after turning ignition on road test the vehicle for at least 5 minutes Perform several antilock braking stops 11 CAUTION Ensure braking capability is available before road testing 12 Again with the DRBIII read If any DTC s are present return to Symptom list 13 If there are no Diagnostic Trouble Codes DTC s present and the customer s concern can no longer be duplicated the repair is complete Are any DTC s present or is the original concern still present Yes Repair is not complete refer to appropriate symptom No Repair is complete AIRBAG VERIFICATION TEST VER 1 1 Remove any special tools or jumper wires and reconnect all previously disconnected components except the Battery 2 WARNING TO AVOID PERSONAL URY OR DEATH TURN THE IGNITION THEN RECONNECT THE BATTERY 3 Connect the DRBIII9 to the Data Link Connector use the most current software available 4 Use the DRBIII and erase the stored codes in all airbag system modules 5 Turn the ignition off and wait 15 seconds then turn the ignition on 6 W

2006 DODGE Sprinter Body Repair Manual

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