2004 LEGACY SERVICE MANUAL QUICK REFERENCE INDEX
Contents
1. circuit between body integrated unit and fuse the registration procedure next Refer to REGIS TRATION MAN UAL FOR IMMOBILIZER CHECK COMBINATION METER CIRCUIT Isthe voltage more than 10 V Go to step 6 Check the harness 1 Remove the combination meter lt Ref to for open or short IDI 16 Combination Meter Assembly circuit between 2 Measure the voltage between the combina combination meter tion meter harness connector terminal and and fuse chassis ground Connector amp terminal 110 No 1 No 2 Chassis ground CHECK COMBINATION METER CIRCUIT Isthe resistance less than 10 LED bulb malfunc Repair the har Measure the resistance between body inte tion Replace the ness connector grated unit harness connector terminal and combination meter combination meter harness connector termi case assembly nal Connector amp terminal 184 No 33 i10 No 17 Ref to IDI 17 DISASSEMBLY Combination Meter Assembly IM diag 12 Diagnostics Chart for Immobilizer Indicator Light IMMOBILIZER DIAGNOSTICS 2 CHECK KEY SWITCH CIRCUIT WIRING DIAGRAM BATTERY M B No 14 KEY WARNING SWITCH BODY INTEGRATED UNIT IM 00078 IM diag 13 Diagnostics Chart for Immobilizer Indicator Light IMMOBILIZER DIAGNOSTICS CHECK POWER SUPPLY CIRCUIT 1 Disconnect the harness connector from key warning switch 2 Turn the ignition switch to ACC or2. IMMOBILIZER DIAGNOSTICS IM diag LAN SYSTEM DIAGNOSTICS G2320GE7 IMMOBILIZER DIAGNOSTICS IM diag 1 Basic Diagnostic FIOCeOble usssivaseidi EY ra ava dicts De eie nir a 2 2 Xaeneral DescHDIlOFl aid raid desta Cou aeo ital T Seu Ss 4 3 Electrical Component Location 6 4 Immobilizer Control Module I O Signal 7 Subaru MONO sas oa ian 8 6 Read Diagnostic Trouble Code DTC 9 7 Near Memory MOO E diuidi a EE 10 8 Diagnostics Chart for Immobilizer Indicator Light 11 9 List of Diagnostic Trouble Code DTC 15 10 Diagnostic Procedure with Diagnostic Trouble Code DTC 17 Basic Diagnostic Procedure IMMOBILIZER DIAGNOSTICS 1 Basic Diagnostic Procedure A PROCEDURE E __ NEN No CHECK IMMOBILIZER WARNING LIGHT Does the immobilizer warning Go to step 2 Check the immobi 1 Turn the ignition switch to OFF or light blink lizer warning light 2 Wait for more than 60 seconds circuit Ref to IM diag 11 CHECK IMMOBI LIZER INDICA TOR CIRCUIT INSPECTION Diagnostics Chart for Immobilizer Indicator Light CHECK KEY SWITCH Does the immobilizer warning Go to step
3. If displayed go to step 5 If NO go to step 6 5 After diagnostic results it is determined that the circuit is not shorted Finish the communication line check 6 If a problem is detected repair the trouble cause Ref to IM diag 22 DTC P1572 IMM CIR CUIT FAILURE EXCEPT ANTENNA CIRCUIT Diagnostic Procedure with Diagnostic Trouble Code DTC gt IM diag 8 Read Diagnostic Trouble Code DTC 6 Read Diagnostic Trouble Code DTC A OPERATION 1 ECM 1 On the Main Menu display screen select the Each System Check and press the YES key 2 On the System Selection Menu display screen select the Engine Control System and press the YES key 3 Press the YES key after the information of en gine type is displayed 4 On the Engine Diagnosis display screen se lect the Diagnostic Code s Display and then press the YES key 5 On the Diagnostic Code s Display display screen select the Current Diagnostic Code s or History Diagnostic Code s and then press the YES key NOTE For detailed operation procedure refer to the SUBARU SELECT MONITOR OPERATION MAN UAL For detailed concerning DTC refer to the List of DTC lt Ref to IM diag 15 LIST List of Diagnostic Trouble Code DTC gt 2 BODY INTEGRATED UNIT 1 On the Main Menu display screen select the Each System Check and press the YES key 2 On the System Selection Menu display scree
4. B280 No 22 Chassis ground B281 No 8 No 9 Chassis ground CHECK HARNESS BETWEEN BODY INTE 15 the resistance less than 10 Go to step 5 Repair the open GRATED UNIT AND ECM circuit of harness 1 Disconnect the harness connector from between body inte body integrated unit and ECM grated unit and 2 Measure the resistance between body inte ECM grated unit harness connector terminal and ECM connector terminal Connector amp terminal 2 0 L non turbo model 2 5 L KS KA model B280 No 18 B135 No 25 2 0 L turbo model 3 0 L model 2 5 L EC K4 EK model B280 No 18 B137 No 19 CHECK HARNESS BETWEEN BODY INTE Is the resistance less than 10 Go to step 6 Repair the open GRATED UNIT AND ECM circuit of harness Measure the resistance between body inte between body inte grated unit harness connector terminal and grated unit and ECM connector terminal ECM Connector amp terminal 2 0 L non turbo model 2 5 L KS model B280 No 28 B135 No 33 2 0 L turbo model 3 0 L model 2 5 L EC K4 EK model B280 No 28 B137 No 27 IM diag 23 Diagnostic Procedure with Diagnostic Trouble Code DTC IMMOBILIZER DIAGNOSTICS CHECK HARNESS OF COMMUNICATION LINE 1 Turn the ignition switch to ON engine OFF 2 Measure the voltage between body inte grated unit harness connector terminal and chassis ground Connector amp terminal B280 No 18 No 28 Chass
5. Menu display screen select the Each System Check and press the YES key 2 On the System Selection Menu display screen select the Integ unit mode and press the YES key 3 Press the YES key after the Integ unit mode is displayed 4 On the Integ unit mode failure diag display screen select the Clear Memory and press the YES key 5 When the Done are shown on the display screen turn the Subaru Select Monitor and ignition switch to OFF NOTE For detailed operation procedure refer to the SUB ARU SELECT MONITOR OPERATION MANUAL IM diag 10 Diagnostics Chart for Immobilizer Indicator Light IMMOBILIZER DIAGNOSTICS 8 Diagnostics Chart for Immobilizer Indicator Light A INSPECTION 1 CHECK IMMOBILIZER INDICATOR CIRCUIT WIRING DIAGRAM BATTERY SBF 1 SBF 9 F B No 7 O IGNITION SWITCH F B No 12 IMMOBILIZER INDICATOR LHD MODEL RHD MODEL essem Jd o IE Ol lol Im o B 280 BODY INTEGRATED UNIT 1 516 7 8 9 1011 12 13 14 5 16 17 18 19 20 21522 28 1 2 3 4 5 16 78 90 11213 415116 178 9 2 LI IM 00086 IM diag 11 Diagnostics Chart for Immobilizer Indicator Light IMMOBILIZER DIAGNOSTICS Check _ Step O CHECK IMMOBILIZER WARNING LIGHT Does the immobilizer indicator to gt I to step 5 1 Turn the ignition switch to OFF ligh
6. Monitor IMMOBILIZER DIAGNOSTICS 5 Subaru Select Monitor OPERATION 1 HOW TO USE SUBARU SELECT MONI TOR 1 Prepare the Subaru Select Monitor kit 2 Connect the diagnosis cable to Subaru Select Monitor 3 Insert the cartridge to Subaru Select Monitor 4 Connect the Subaru Select Monitor to data link connector 1 Data link connector is located in the lower portion of the instrument panel on the driver s side 2 Connect the diagnosis cable to data link connector CAUTION Do not connect the scan tools except for Suba ru Select Monitor 5 Turn the ignition switch to ON engine OFF and the Subaru Select Monitor switch to ON CC 00045 1 Power switch 6 Using the Subaru Select Monitor call up DTCs and various data then record them 2 READ DIAGNOSTIC TROUBLE CODE DTC FOR ENGINE AND BODY INTEGRAT ED UNIT Refer to Read Diagnostic Trouble Code for infor mation about how to indicate DTC Ref to IM di ag 9 Read Diagnostic Trouble Code DTC gt 3 COMMUNICATION LINE CHECK NOTE The communication line between ECM and body integrated module can be checked in System Op eration Check Mode This is referred to as munication line check 1 Connect the Subaru Select Monitor 2 On the System operation check mode display select the security system 3 Start the communication line check 4 Is Communication Line not Shorted displayed on screen
7. P0513 INCORRECT IMMOBI body integrated unit LIZER KEY Diagnostic Proce Faulty antenna dure with Diagnostic Trouble Code DTC gt Ref to IM diag 18 DTC P1570 ANTENNA Diagnostic Procedure with Diag nostic Trouble Code DTC or Ref to IM diag 25 DTC P1574 KEY COMMUNICA TION FAILURE Diagnostic Pro cedure with Diagnostic Trouble Code DTC gt Ref to IM diag 22 DTC 1572 CIRCUIT FAILURE 403 E G request NG between body integrated unit 12 Immobilizer Key colla tion NG and ECM CUIT Diagnostic Procedure with Diagnostic Trouble Code DTC gt NOTE Immobilizer system of 2 5 L EC EK model and 3 0 L model perform the starter relay control When the body integrated unit detect the inconformity of reference code immediately out put the starter relay cut signal to ECM and then ECM stop the starter relay operation In this case engine does not start and DTC is not recorded in ECM Check that the engine does not start on the DTC of body integrated unit e DTC B0402 is recorded as freeze frame data when the ignition switch is turned to OFF When trying to start the engine with unregistered immobilizer key DTC is not displayed on Subaru Select Monitor immediately Turn the ignition switch to OFF once and turn to ON again before checking DTC At this time when turning the ignition switch to ON again be careful that the DTC is displayed as freeze frame data even with the
8. reg istered immobilizer key IM diag 16 Diagnostic Procedure with Diagnostic Trouble Code DTC IMMOBILIZER DIAGNOSTICS 10 Diagnostic Procedure with Diagnostic Trouble Code DTC A DTC P0513 INCORRECT IMMOBILIZER KEY DTC DETECTING CONDITION Incorrect immobilizer key Use of unregistered key in body integrated unit PERFORM TEACHING OPERATION ON IG NITION KEY Perform teaching operation on all keys of the vehicle Refer to REGISTRATION MANUAL FOR IMMOBILIZER PERFORM TEACHING OPERATION ON IG NITION KEY Perform teaching operation on all keys of the vehicle Refer to REGISTRATION MANUAL FOR IMMOBILIZER Is the teaching operation for all END keys completed Is the teaching operation for all END keys completed IM diag 17 Replace the igni tion keys includ ing transponder which cannot be registered Go to step 2 Replace the body integrated unit Ref to SL 46 Body Integrated Unit and replace all the ignition keys including tran sponder Execute the registration procedure next Refer to REGIS TRATION MAN UAL FOR IMMOBILIZER Diagnostic Procedure with Diagnostic Trouble Code DTC IMMOBILIZER DIAGNOSTICS P1570 ANTENNA DTC DETECTING CONDITION Faulty antenna WIRING DIAGRAM ANTENNA BODY INTEGRATED UNIT IM 00079 IM diag 18 Diagnostic Procedure with Diagnostic Trouble Code DTC CHECK ANTENNA CIRCUIT 1 Turn the igni
9. the all ignition keys including tran sponder Execute the registration IMMOBILIZER procedure next Refer to REGIS TRATION MAN UAL FOR IMMOBILIZER F DTC P1576 EGI CONTROL MODULE EEPROM DTC DETECTING CONDITION ECM malfunctioning 1 REPLACE ECM Replace the ECM Ref to FU H4SO 2 0 34 Engine Control Module ECM gt Ref to FU H4SO 2 5 36 Engine Control Module ECM Ref to FU HADOTO 35 Engine Control Module ECM Ref to FU H6DO 34 Engine Control Module ECM gt Perform the registration procedure next Refer to REGISTRATION MANUAL FOR IMMOBILIZER G DTC P1577 IMM CONTROL MODULE EEPROM DTC DETECTING CONDITION Body integrated unit malfunctioning 1 REPLACE BODY INTEGRATED UNIT Replace the body integrated unit Ref to SL 46 Body Integrated Unit and replace the all ignition keys in cluding transponder Execute the registration procedure next Refer to REGISTRATION MANUAL FOR IM MOBILIZER IM diag 25 Diagnostic Procedure with Diagnostic Trouble Code DTC IMMOBILIZER DIAGNOSTICS DTC P1578 METER FAILURE DTC DETECTING CONDITION Reference code incompatibility between body integrated unit and combination meter 1 CHECK LAN COMMUNICATION SYSTEM Inspect LAN communication system in the following situation lt Ref to LAN diag 2 Basic Diagnostic Proce dure gt e DTC of body integrated unit B0300 B0301 B0302 B0111 B0321 is displayed Er IU
10. 01 2 5L 2 0 L TURBO MODEL 3 0 L 2 5 L MODEL AND EC K4 EK MODEL 280 BODY INTEGRATED UNIT C B281 1 00087 IM diag 22 Diagnostic Procedure with Diagnostic Trouble Code DTC IMMOBILIZER DIAGNOSTICS Dove To No CHECK BODY INTEGRATED UNIT POWER Is the voltage more than 10 V Go to step 2 Check the harness SUPPLY CIRCUIT for open or short 1 Turn the ignition switch to OFF circuit between 2 Disconnect the harness connector from body integrated body integrated unit unit and fuse 3 Measure the voltage between body inte grated unit harness connector terminal and chassis ground Connector amp terminal B280 No 7 4 Chassis ground B281 No 2 4 Chassis ground CHECK BODY INTEGRATED UNIT POWER s the voltage more than 10 V Go to step 3 Check the harness SUPPLY CIRCUIT for open or short 1 Turn the ignition switch to ON engine circuit between OFF body integrated 2 Measure the voltage between body inte unit and ignition grated unit harness connector terminal and switch chassis ground Connector amp terminal i84 No 1 4 Chassis ground CHECK BODY INTEGRATED UNIT GROUND Is the resistance less than 10 Go to step 4 Repair the open CIRCUIT circuit of body inte 1 Turn the ignition switch to OFF grated unit ground 2 Measure the resistance between body inte circuit grated unit harness connector terminal and chassis ground Connector amp terminal
11. 2004 LEGACY SERVICE MANUAL QUICK REFERENCE INDEX BODY SECTION SYSTEM HEATER VENTILATOR AND A C HVAC SYSTEM AUTO A C AC diag DIAGNOSTICS AIRBAG SYSTEM AIRBAG SYSTEM DIAGNOSTICS AB diag This service manual has been prepared to provide SUBARU service personnel with the necessary information and data for the correct maintenance and repair LIGHTING SYSTEM T This manual includes the procedures for maintenance disassembling reas sembling inspection and adjustment of WIPER AND WASHER SYSTEMS components and diagnostics for guid ance of experienced mechanics Please peruse and utilize this manual ENTERTAINMENT fully to ensure complete repair work for satisfying our customers by keeping their vehicle in optimum condition COMMUNICATION SYSTEM When replacement of paris during repair work is needed be sure to use SUBARU genuine parts GLASS WINDOWS MIRRORS SEAT BELT SYSTEM SB BODY STRUCTURE INSTRUMENTATION DRIVER INFO SEATS SECURITY AND LOCKS SUNROOF T TOP CONVERTIBLE TOP sp SUNROOF EXTERIOR INTERIOR TRIM All information illustration and specifi cations contained in this manual are based on the latest product information available at the time of publication approval EXTERIOR BODY PANELS FUJI HEAVY INDUSTRIES LTD G2320GE7 2003 LEGACY SERVICE MANUAL QUICK REFERENCE INDEX BODY SECTION CRUISE CONTROL SYSTEM CRUISE CONTROL SYSTEM CC diag DIAGNOSTICS
12. 3 Check the key Remove the key from ignition switch light blink within 1 second after switch circuit removing ignition key Ref to IM diag 13 CHECK KEY SWITCH CIR CUIT INSPEC TION Diagnostics Chart for Immobi lizer Indicator Light 3 CHECK IMMOBILIZER WARNING LIGHT Does the immobilizer warning Go to step 5 Go to step 4 Turn the ignition switch to ON light off CHECK ENGINE START Does the starter operate Check the LAN Check the DTC Turn the ignition switch to START communication cir display body inte cuit Ref to grated unit Go to LAN diag 2 Basic step 7 Diagnostic Proce dure CHECK ENGINE START Does the starter operate Go to step 6 Check the LAN Turn the ignition switch to START communication cir cuit Ref to LAN diag 2 Basic Diagnostic Proce dure CHECK ENGINE START Does the engine start Immobilizer sys Check the DTC Turn the ignition switch to START tem is OK display ECM Go to step 7 CHECK INDICATION OF DTC ON DISPLAY Is the DTC displayed on Go to step 8 Repair the related 1 Turn the ignition switch to OFF screen parts 2 Connect the Subaru Select Monitor to data link connector Ref to IM diag 8 Subaru Select Monitor 3 Turn the ignition switch and Subaru Select Monitor switch to ON 4 Read DTC on display IM diag 2 Basic Diagnostic Procedure IMMOBILIZER DIAGNOSTICS PERFORM THE DIAGNOSIS Is the DTC displayed on Inspect using th
13. 6 Engine Control Module ECM gt lt Ref to FU H4DOTC 35 Engine Control Module ECM gt lt Ref to FU H6DO 34 Engine Control Module Perform the regis tration procedure next Refer to REGISTRATION MANUAL FOR IMMOBILIZER Diagnostic Procedure with Diagnostic Trouble Code DTC IMMOBILIZER DIAGNOSTICS E DTC P1574 KEY COMMUNICATION FAILURE DTC DETECTING CONDITION Failure of body integrated unit to verify key transponder ID code Yes CHECK BODY INTEGRATED UNIT FUNC 15 the voltage 30 to 30 V Go to step 2 Replace the body TION Approx 0 1 second after integrated unit Insert the key to ignition switch LOCK posi the key Is the voltage Ref to 51 46 tion and measure the changes in voltage 0 V Approx 1 second after Body Integrated between antenna connectors inserting the key Unit and replace Connector amp terminal the all ignition keys B142 No 1 No 2 including tran sponder Execute the registration procedure next Refer to REGIS TRATION MAN UAL FOR IMMOBILIZER CHECK IGNITION KEY TRANSPONDER Does the engine start Replace all the Replace the body 1 Remove the key from ignition switch ignition keys integrated unit 2 Start the engine using other keys that have including tran Ref to 51 46 undergone the teaching operation furnished sponder Execute Body Integrated with vehicle the registration Unit and replace procedure next
14. LOCK with key inserted 3 Measure the voltage between key warning switch harness connector terminal and chassis ground Connector amp terminal B350 No 3 4 Chassis ground CHECK KEY WARNING SWITCH 1 Insert the ignition key to ignition switch OFF or ACC 2 Measure the resistance between key warn ing switch terminals Connector amp terminal No 3 No 4 CHECK KEY WARNING SWITCH 1 Remove the ignition key from ignition switch 2 Measure the resistance between key warn ing switch terminals Connector amp terminal No 3 No 4 CHECK HARNESS BETWEEN KEY WARN ING SWITCH AND BODY INTEGRATED UNIT 1 Disconnect the harness connector from key warning switch 2 Disconnect the harness connector from body integrated unit 3 Measure the resistance between key warn ing switch harness connector terminal and body integrated unit harness connector termi nal Connector amp terminal B350 No 4 B281 No 7 Check Yes Is the voltage more than 10 V Go to step 2 Is the resistance less than 1 Is the resistance more than 1 Is the resistance less than 10 Q IM diag 14 Go to step 3 Go to step 4 Replace the body integrated unit Ref to 51 46 Body Integrated Unit and replace the all ignition keys including tran sponder Execute the registration procedure next Refer to REGIS TRATION MAN UAL FOR IMMOBILIZER Check the harness for ope
15. UNICATION FAILURE Diagnostic Proce dure with Diagnostic Trouble Code DTC gt lt Ref to IM diag 25 DTC P1576 EGI CON TROL MODULE EEPROM Diagnostic Pro cedure with Diagnostic Trouble Code DTC gt lt Ref to IM diag 25 DTC P1577 IMM CON TROL MODULE EEPROM Diagnostic Pro P1576 EGI Control Module EEPROM ECM malfunctioning P1577 IMM Control Module EEPROM Body integrated unit malfunctioning cedure with Diagnostic Trouble Code DTC gt Reference code incompatibility lt Ref to IM diag 26 DTC P1578 METER P1578 Meter malfunctioning between body integrated unit and FAILURE Diagnostic Procedure with Diag combination meter nostic Trouble Code DTC gt NOTE Perform the engine DTC when the DTC except for immobilizer DTC is detected Ref to EN H4SO 2 0 diag 66 List of Diagnostic Trouble Code DTC gt Ref to EN HASO 2 5 diag 70 List of Diagnostic Trouble Code DTC gt lt Ref to EN H4DOTC diag 55 List of Diagnostic Trouble Code DTC gt Ref to EN H6DO diag 66 List of Diagnostic Trouble Code DTC gt IM diag 15 List of Diagnostic Trouble Code DTC IMMOBILIZER DIAGNOSTICS 2 BODY INTEGRATED UNIT Reference code incompatibil i Diaa 401 M collation NG ity between body integrated 2399 unit and combination meter neste recai INDIA He tic Trouble Code DTC gt Incorrect immobilizer key lt Ref to IM diag 17 DTC Use of unregistered key in
16. e Finish the diagno 1 Inspect using the Diagnostic Procedure screen Diagnostic Proce sis with Diagnostic Trouble Code DTC dure with Diagnos Ref to IM diag 17 Diagnostic Procedure tic Trouble Code with Diagnostic Trouble Code DTC gt DTC Ref to 2 Repair the trouble cause IM diag 17 Diag 3 Perform clear memory mode nostic Procedure 4 Read DTC again with Diagnostic Trouble Code DTC gt IM diag 3 General Description IMMOBILIZER DIAGNOSTICS 2 General Description A CAUTION CAUTION All airbag system wiring harnesses and con nectors are yellow Do not use the electrical test equipment on these circuits Be careful not to damage the airbag system wiring harness e While diagnostic items are being checked do not operate radios portable telephones etc which emit electromagnetic waves near or in side the vehicle e When turning the ignition switch to ON or OFF while diagnostic items are being checked do not allow keys with different ID codes close to the ignition switch If the ignition key is in a key holder remove it from the holder before carrying out diagnosis X IM 00002 e When repeatedly turning the ignition switch to ON or OFF while diagnostic items are being checked it should be switched in cycles of ON for at least 5 seconds OFF for at least 8 seconds 1 Ignition switch position 2 Sec e f the engine fails to sta
17. e resistance less than 10 Is the resistance less than 10 Is the resistance less than 10 Repair the har Go to step 4 ness Go to step 5 Repair the har Go to step 6 Repair the har ness between body integrated unit and antenna because there is short circuit with battery voltage line or ignition switch ON line Go to step 7 Replace the body integrated unit lt Ref to SL 46 Body Integrated Unit gt and replace all the ignition keys including tran sponder Execute the registration procedure next Refer to REGIS TRATION MAN UAL FOR IMMOBILIZER Is the voltage 0 V Is the voltage 0 V Is the voltage 30 to 30 V Approx 0 1 second after inserting the key Is the voltage 0 V Approx 1 second after inserting the key IM diag 19 Diagnostic Procedure with Diagnostic Trouble Code DTC IMMOBILIZER DIAGNOSTICS CHECK IGNITION KEY TRANSPONDER 1 Remove the key from ignition switch Does the engine start 2 Start the engine using other keys that have undergone the teaching operation furnished with vehicle IM diag 20 Replace all the ignition keys including tran sponder Execute the registration procedure next Refer to REGIS TRATION MAN UAL FOR IMMOBILIZER Replace the body integrated unit Ref to SL 46 Body Integrated Unit and replace the all ignition keys including tran sponder Execute the registration procedure next Re
18. fer to REGIS TRATION MAN UAL FOR IMMOBILIZER Diagnostic Procedure with Diagnostic Trouble Code DTC IMMOBILIZER DIAGNOSTICS C DTC P1571 REFERENCE CODE INCOMPATIBILITY DTC DETECTING CONDITION Reference code incompatibility between body integrated unit and ECM Yes PERFORM TEACHING OPERATION ON IG 115 the teaching operation for all END Replace the ECM NITION KEY keys completed Ref to FU H4SO Perform teaching operation on all keys of the 2 0 34 Engine vehicle Refer to REGISTRATION MANUAL Control Module FOR IMMOBILIZER ECM Ref to FU H4SO 2 5 36 Engine Control Module ECM gt lt Ref to FU H4DOTC 35 Engine Control Module ECM gt lt Ref to FU H6DO 34 Engine Control Module ECM gt Replace the body integrated unit lt Ref to SL 46 Body Integrated Unit gt and replace all the ignition keys including tran sponder Execute the registration procedure next Refer to REGIS TRATION MAN UAL FOR IMMOBILIZER IM diag 21 Diagnostic Procedure with Diagnostic Trouble Code DTC IMMOBILIZER DIAGNOSTICS D DTC P1572 IMM CIRCUIT FAILURE EXCEPT ANTENNA CIRCUIT DTC DETECTING CONDITION Communication failure between body integrated unit and ECM WIRING DIAGRAM IGNITION BATTERY SWITCH SBF 1 SBF 4 F B 12 O OF O O Q SBF 9 F B No 7 M B No 8 OTO NA MODEL AND KS KA MODEL cof o IN e of o zl lal im jo 2
19. is ground CHECK HARNESS OF COMMUNICATION LINE Check Is the voltage O Yes Go to step 7 Is the voltage O Go to step 8 Measure the voltage between harness connec tor terminal and engine ground Connector amp terminal 2 0 L non turbo model 2 5 L KS KA model B135 No 25 33 Engine ground 2 0 L turbo model 3 0 L model 2 5 L K4 EK model B137 No 19 27 Engine ground 2 CHECK ECM BY COMMUNICATION LINE CHECK 1 Connect the harness connector to ECM 2 Disconnect the harness connector from body integrated unit 3 Start the communication line check Ref to IM diag 8 COMMUNICATION LINE CHECK OPERATION Subaru Select Moni tor Does Communication Line not Replace the body Shorted appear on the Screen integrated unit Ref to SL 46 Body Integrated Unit and replace the all ignition keys including tran sponder Execute the registration procedure next Refer to REGIS TRATION MAN UAL FOR IMMOBILIZER IM diag 24 Repair the har ness between body integrated unit and ECM because there is short circuit with battery voltage line or ignition switch ON line Repair the har ness between body integrated unit and ECM because there is short circuit with battery voltage line or ignition switch ON line Replace the ECM Ref to FU H4SO 2 0 34 Engine Control Module ECM gt lt Ref to FU H4SO 2 5 3
20. n select the Integ unit mode and press the YES key 3 Press the YES key after the Integ unit mode is displayed 4 On the Integ unit mode failure diag display screen select the Diagnostic Code s Display and press the YES key NOTE For detailed operation procedure refer to the SUBARU SELECT MONITOR OPERATION MAN UAL For detailed concerning DTC refer to the List of DTC lt Ref to IM diag 15 LIST List of Diagnostic Trouble Code DTC gt IM diag 9 IMMOBILIZER DIAGNOSTICS Clear Memory Mode IMMOBILIZER DIAGNOSTICS 7 Clear Memory Mode A OPERATION 1 ECM 1 On the Main Menu display screen select the Each System Check and press the YES key 2 On the System Selection Menu display screen select the Engine Control System and press the YES key 3 Press the YES key after the information of en gine type is displayed 4 On the Engine Diagnosis display screen se lect the Clear Memory and press the YES key 5 When the Done are shown on the display screen turn the Subaru Select Monitor and ignition switch to OFF NOTE After the memory has been cleared the idle air control solenoid valve must be initialized To exe cute this procedure turn the ignition switch to ON Wait 3 seconds before starting the engine For detailed operation procedure refer to the SUBARU SELECT MONITOR OPERATION MAN UAL 2 BODY INTEGRATED UNIT 1 On the Main
21. n or short circuit between key warning switch and fuse Replace the key warning switch Replace the key warning switch Repair the har ness between key warning switch and body inte grated unit List of Diagnostic Trouble Code DTC IMMOBILIZER DIAGNOSTICS 9 List of Diagnostic Trouble Code DTC A LIST 1 ECM DTC Contents of diagnosis Index No lt Ref to IM diag 17 DTC P0513 INCOR Incorrect immobilizer key Use IMMOBILIZER KEY Diagnostic Pro unregistered key in body integrated unit P0513 Incorrect Immobilizer Key cedure with Diagnostic Trouble Code DTC gt lt Ref to IM diag 18 DTC P1570 1570 ANTENNA Faulty antenna ANTENNA Diagnostic Procedure with Diag nostic Trouble Code DTC gt Ref to IM diag 21 DTC P1571 REFER Reference code incompatibility P1571 Reference Code Incompatibility between body integrated unit and ECM ENCE CODE INCOMPATIBILITY Diagnos tic Procedure with Diagnostic Trouble Code DTC gt lt Ref to IM diag 22 DTC P1572 IMM CIR Communication failure between CUIT FAILURE EXCEPT ANTENNA CIR body integrated unit and ECM CUIT Diagnostic Procedure with Diagnostic Trouble Code DTC gt P1574 Key Immobilizer Communica Failure of body integrated unit to ver lt Ref to IM diag 25 DIC P1574 KEY COM EGI Immobilizer Communi P1572 cation Except Antenna Circuit tion keyitransponder 1D code M
22. or Er LC is displayed in odo trip meter on combination meter 2 REPLACE COMBINATION METER Replace the combination meter Ref to IDI 16 REMOVAL Combination Meter Assembly Execute the registration procedure of all immobilizer part combination meter and etc next Refer to REGISTRATION MANUAL FOR IMMOBILIZER NOTE When the combination meter has been replaced be sure to perform the registration procedure of immo bilizer e Engine may not start when the combination meter which removed from the model with immobilizer to the model without immobilizer When installed wrong one correct with the following procedure 1 Turn the ignition switch to OFF 2 Reinstall the combination meter Install the combination meter for the model without immobilizer 3 Disconnect the ground cable from battery and reconnect one minute later 4 Turn the ignition switch to START and check that the engine starts When the combination meter and body integrated unit are replaced at the same time the registration pro cedure cannot be performed In this case it is necessary to write an ID newly to body integrated unit IM diag 26
23. rt with a registered ig nition key detach the ignition key from ignition switch and wait for approx 1 second until im mobilizer indicator light begins to flash And then start the engine again Before checking the diagnostic items obtain all keys for the vehicle to be checked pos sessed by owner IM diag 4 General Description IMMOBILIZER DIAGNOSTICS B PREPARATION TOOL 1 SPECIAL TOOL ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS 24082 230 CARTRIDGE Troubleshooting for electrical system ST24082AA230 22771 030 SUBARU SELECT Troubleshooting for electrical system MONITOR KIT English 22771 030 Without printer German 22771AA070 Without printer French 22771 080 Without printer Spanish 22771 090 Without printer ST22771AA030 2 GENERAL TOOL TOOL NAME REMARKS Circuit tester Used for measuring resistance voltage and ampere IM diag 5 Electrical Component Location IMMOBILIZER DIAGNOSTICS 3 Electrical Component Location A LOCATION 1 Antenna 3 integrated unit 4 Transponder 2 Immobilizer indicator light LED bulb NOTE Body integrated unit location for RHD model is symmetrically opposite IM diag 6 Immobilizer Control Module 1 Signal IMMOBILIZER DIAGNOSTICS 4 Immobilizer Control Module I O Signal A WIRING DIAGRAM 1 IMMOBILIZER lt Ref to WI 246 WIRING DIAGRAM Immobilizer System gt IM diag 7 Subaru Select
24. t illuminate 2 Disconnect the harness connector from body integrated unit 3 Connectthe resistor 100 between body integrated unit harness connector terminal 84 No 33 and chassis ground CHECK BODY INTEGRATED UNIT GROUND Is the resistance less than 10 Go to step 3 Repair the open CIRCUIT circuit of body inte Measure the resistance between body inte grated unit ground grated unit harness connector terminal and circuit chassis ground Connector amp terminal B280 No 22 Chassis ground B281 No 8 No 9 Chassis ground CHECK BODY INTEGRATED UNIT IGNITION 15 the voltage more than 10 V Go to step 4 Check the harness CIRCUIT for open or short 1 Turn the ignition switch to ON engine circuit between OFF body integrated 2 Measure the voltage between body inte unit and ignition grated unit harness connector terminal and switch chassis ground Connector amp terminal i84 No 1 Chassis ground Check the harness for open or short CHECK BODY INTEGRATED UNIT POWER 115 the voltage more than 10 V Replace the body SUPPLY CIRCUIT integrated unit 1 Turn the ignition switch to OFF Ref to SL 46 2 Measure the voltage between body inte Body Integrated grated unit harness connector terminal and Unit and replace chassis ground the all ignition keys Connector amp terminal including tran B280 No 7 Chassis ground sponder Execute B281 No 2 4 Chassis ground
25. tion switch to OFF 2 Disconnect the harness connector from antenna Ref to SL 50 Immobilizer Antenna 3 Measure the resistance of antenna circuit Connector amp terminal B351 No 1 No 2 CHECK ANTENNA CIRCUIT 1 Disconnect the harness connector from body integrated unit 2 Measure the resistance between harness connector and chassis ground Connector amp terminal B281 No 21 Chassis ground CHECK ANTENNA CIRCUIT Measure the resistance between harness con nector and chassis ground Connector amp terminal B281 No 20 Chassis ground CHECK ANTENNA CIRCUIT 1 Turn the ignition switch to ON engine OFF 2 Measure the voltage between harness con nector and chassis ground Connector amp terminal B281 No 21 Chassis ground CHECK ANTENNA CIRCUIT Measure the voltage between harness connec tor and chassis ground Connector amp terminal B281 No 20 Chassis ground CHECK BODY INTEGRATED UNIT FUNC TION 1 Turn the ignition switch to OFF 2 Connect the harness connector to body integrated unit 3 Insert the key to ignition switch and mea sure the changes in voltage between antenna harness connectors Connector amp terminal B281 20 No 21 Q Q Q IMMOBILIZER DIAGNOSTICS Go to step 2 Replace the antenna lt Ref to SL 50 Immobi lizer Antenna gt Repair the har Go to step 3 ness Check Is th
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