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1. 8th Fuel Systems VIN Carburetor Computer Engine Digit Model Application Special Notes System 1981 1982 1 6L l 4 5 2 EFI EFI Turbo Escort EXP LN7 Lynx EEC IV 2 3L l 4 5 EFI Turbo Capri Cougar Mustang T Bird 2 3L l 4 HSC R J FBC 6149 Capri Fairmont LTD Marquis Mustang Tempo Topaz Zephyr 1984 1986 1 6L l 4 4 5 8 EFI EFI Turbo Escort EXP Lynx EEC IV 2 3L l 4 A J R FBC Capri Cougar LTD Marquis 2 3L l 4 OHC YFA 6149 Mustang Tempo Topaz 2 3L l 4 T W EFI Turbo Capri Cougar Merkur XR4Ti Mustang T Bird 2 3L l 4 HSC S X CFI Tempo Topaz 3 8L V 6 3 CFI Capri Cougar LTD Marquis Mustang T Bird CarScan 67 Ford OBD1 Systems VEHICLES COVERED CARS 8th Fuel Systems VIN Carburetor Computer Engine Digit Model Application Special Notes System 1984 1986 Cont 5 0L V 8 F M CFI SEFI Capri Continental Colony EEC IV Park Cougar Country Squire Crown Victoria Grand Marquis LTD Mark VII Marquis Mustang T Bird Town Car 1987 1993 1 9L l 4 J 9 EFI CFI SFI Escort EXP Lynx Tracer EEC IV 2 0L l 4 A SEFI Probe 1993 manual transmission only 2 3L l 4 A FBC YFA Capri LTD Marquis Mustang 1996 models 2 3L l 4 OHC A M EFI Mustang 2 3L l 4 T W EFI Turbo Capri Cougar Merkur Mustang T Bird XR4Ti 2 3L l 4 HSC S X CFI EFI SEFI Tempo Topaz 2 5L l 4 D EFI CFI Sa
2. After the initial language and unit of measurement selections Sr are performed these as well as other settings can be changed as desired Proceed to ADJUSTMENTS AND SETTINGS on page 124 for further instructions 6 CarScan Scan Tool Controls CONTROLS AND INDICATORS CONTROLS AND INDICATORS Figure 1 Controls and Indicators See Figure 1 for the locations of items 1 through 12 below 1 SS ERASE button Erases Diagnostic Trouble Codes DTCs and Freeze Frame data from your vehicle s computer and resets Monitor status 2 lt q ENTER button When in MENU mode confirms the selected option or value 3 DTC FF button Displays the DTC View screen and or scrolls the LCD display to view DTCs and Freeze Frame data 4 OAD POWERILINK button When the Scan Tool IS NOT connected to a vehicle turns the Scan Tool On and Off When the Scan Tool is connected to a vehicle links the Scan Tool to the vehicle s PCM to retrieve diagnostic data from the computer s memory To turn the Scan Tool On you must press and hold the POWERZ LINK button for approximately 3 seconds 5 LD M button When pressed while linked to a vehicle places the Scan Tool in Live Data mode When pressed and held while linked to a vehicle displays the Mode Se
3. Glossary GLOSSAY OF TERMS AND ABBREVIATIONS GLOSSARY OF TERMS AND ABBREVIATIONS CARB California Air Resources Board CCM Central Control Module Computer Control System An electronic control system consisting of an on board computer and related sensors switches and actuators used to ensure peak performance and fuel efficiency while reducing pollutants in the vehicle s emissions DIY Do It Yourself DLC Data Link Connector Drive Cycle An extended set of driving procedures that takes into consideration the various types of driving conditions encountered in real life Driving Condition A specific environmental or operation condition under which a vehicle is operated such as starting the vehicle when cold driving at steady speed cruising accelerating etc DTC s Diagnostic Trouble Code s EGR Exhaust Gas Recirculation EPA Environmental Protection Agency EVAP Evaporative Emissions System Fault Code See DTCs Freeze Frame A digital representation of engine and or emissions system conditions present when a fault code was recorded FTP Fuel Tank Pressure Generic Code A DTC that applies to all OBD2 compliant vehicles I M Readiness An indication of whether or not a vehicle s emissions related system are operating properly and are ready for Inspection and Maintenance testing I M Test Emissions Test Smog Check A functional test of a vehicle to de
4. Only one test limit either Min or Max is shown for any given test Test Value and status Status is calculated by the Scan Tool by comparing the Test Value against the displayed test limit either Min or Max Status is shown as either Low High or OK 5 Press the LD M button to return to the Select Test screen When you have finished viewing the retrieved test data press the LD M button to return to the Main Menu screen 6 Repeat steps 3 through 5 to view test results for additional tests EVAP Leak Test The EVAP Leak Test function lets you initiate a leak test for the vehicle s EVAP system The Scan Tool does not perform the leak test but signals to vehicle s on board computer to initiate the test The vehicle manufacturer determines the criteria and method for stopping the test once it has been started BEFORE using the EVAP Leak Test function refer to the vehicle s service repair manual to determine the procedures necessary to stop the test 1 From the Special Test Menu use the UP and DOWN w buttons as necessary to highlight System Test then press the Special Test Menu Select and press O2 Sensor Test ENTER lt 4 button Non Continuous Test 2 A One moment please message displays while the request is sent to the vehicle s on board computer Press LD M to exit Some vehicle manufacturers do not allow Scan Tools or other external devices to control vehicle systems
5. Sr any test See BEFORE YOU BEGIN on page 31 for details ALWAYS observe safety precautions whenever working on a vehicle See SAFETY PRECAUTIONS on page 3 for more information 1 Turn the ignition off 2 Locate the vehicle s 16 pin Data Link Connector DLC See page 5 for connector location Some DLCs have a plastic cover evn that must be removed before connecting the Scan Tool cable connector If the Scan Tool is ON turn it OFF Sp by pressing the POWER LINK OBD button BEFORE connecting the Scan Tool to the DLC 3 Connect the Scan Tool cable connector to the vehicle s DLC The cable connector is keyed and will only fit one way m If you have problems connecting the cable connector to the DLC rotate the connector 180 and try again m f you still have problems check the DLC on the vehicle and on the Scan Tool Refer to your vehicle s service manual to properly check the vehicle s DLC Turn the ignition on DO NOT start the engine When the Scan Tool s cable connector is properly connected to the vehicle s DLC the unit automatically turns ON CarScan 33 Using the Scan Tool CODE RETRIEVAL PROCEDURE m If the unit does not power on automatically when connected to the vehicle s DLC connector it usually indicates there is no power present at the vehicle s DLC connector Check your fuse panel and replace any burned out fuses m f replacing the fuse s does not correct the p
6. page 45 m Toyota Lexus page 47 Chrysler Jeep Enhanced DTCs When the Scan Tool enters the enhanced mode and Chrysler Jeep is selected if prompted the Chrysler Enhanced menu displays You may view either Engine DTCs or Transmission DTCs 40 CarScan Using the Scan Tool VIEWING ENHANCED DTCs 1 Use the UP g and DOWN w buttons as necessary to highlight the desired option then press the ENTER lt 4 button e Transmission DTCs are not sup ported on most Chrysler Jeep ve hicles manufactured prior to 2002 A One moment please message displays while the Scan Tool retrieves the selected DTCs If the Scan Tool fails to link to the vehicle s computer a Linking Failed message shows on the Scan Tool s display Verify the ignition is ON then press the POWERILINK lt 3 button to continue 2 To read the display Refer to DISPLAY FUNCTIONS on page 8 for a description of LCD display elements Chrysler Jeep Enhanced Select and press 41 Engine DTCs Transmission DTCs Press LD M to exit Chrysler Jeep Enhanced Unable to establish a link with the vehicle Verify the ignition is ON and press m A visible icon indicates that the Scan Tool is being powered through the vehicle s DLC connector The upper right hand corner of the display shows the number of the code currently being displayed the total numb
7. 1 Locate the vehicle s Data Link Connector DLC See TEST CONNECTORS on page 70 for connector location Some DLCs have a plastic cover that must be removed before connecting the Scan Tool s cable connector 2 Connect the Scan Tool cable with the Ford Connector Cable Adaptor attached to the Scan Tool then connect the adaptor to the vehicle s DLC Press the POWERILINK lt button to turn the Scan Tool ON then press ENTER button to continue m The Ford OBD1 Menu displays Se Use the gy and W buttons as Review DTCs a Test necessary to make menu aiaa H KOER Test selections Cylinder Balance Test Output State Check Wiggle Test 76 CarScan Ford OBD1 Systems CODE RETRIEVAL PROCEDURES ENGINE TIMING CHECK From the Ford OBD1 Menu highlight Timing Check then press the ENTER button m The Select Model Year screen displays From the Select Model Year screen highlight the vehicle model year then press the ENTER lt 4 button m For 1993 and newer vehicles The message Follow instructions in vehicle service manual to perform timing check displays Press the LD M button to exit Refer to the vehicle s service manual for timing check procedures Timing Check Select and press to continue 1992 and older Timing Check Follow instructions in vehicle service manual to perform timing check Press LD M to exit m For 1992 and older veh
8. through the vehicle s DLC connector The upper right hand corner of the display shows the number of the code currently being displayed the total number of codes retrieved The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the LCD display I M MONITOR STATUS icons are not displayed when viewing enhanced DTCs LS e a P1250 Ford Mazda KOEO Vacuum reservoir control circuit open In the case of long code definitions or when viewing Freeze Frame data a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the and w buttons as necessary to view the additional information The Scan Tool will display a code only if codes are present in the vehicle s computer memory If no codes are present a No Enhanced DTC s are presently stored in the vehicle s computer is displayed Press the LD M button to return to the Ford Mazda Enhanced menu CarScan No Enhanced DTCs are presently stored in the vehicle s computer Press LD M to exit 43 Using the Scan Tool VIEWING ENHANCED DTCs 4 5 If more than one code was retrieved press the DTC FF button as necessary to display additional codes one at a time m Whenever the Scroll function is used to view additional codes the Scan Tool s communication link with the vehic
9. Freeze Frame data may or may not be saved at this time depending on manufacturer The Pending DTC is saved in the computer s memory for later retrieval m lf the failure is found on the second consecutive trip the MIL is ordered On Freeze Frame data is saved in the computer s memory m If the failure is not found on the second Trip the Pending DTC is erased from the computer s memory The MIL will stay lit for both Type A and Type B codes until one of the following conditions occurs 18 CarScan Onboard Diagnostics OBD2 MONITORS m lf the conditions that caused the MIL to light are no longer present for the next three trips in a row the computer automatically turns the MIL Off if no other emissions related faults are present However the DTCs remain in the computer s memory as a history code for 40 warm up cycles 80 warm up cycles for fuel and misfire faults The DTCs are automatically erased if the fault that caused them to be set is not detected again during that period m Misfire and fuel system faults require three trips with similar conditions before the MIL is turned Off These are trips where the engine load RPM and temperature are similar to the conditions present when the fault was first found After the MIL has been turned off DTCs and Freeze Frame data stay in the computer s memory m Erasing the DTCs from the computer s memory can also turn off the MIL
10. Main Menu displays View Enhanced DTCs s View ABS DTCs 2 Use the UP and DOWN w buttons irl as as necessary to highlight View Live Data Press LD M to exit then press the ENTER lt 4 button 3 Real time Live Data PID information omone p CIS supported by the vehicle under test k displays ive Date Remember what you are viewing is oe real time Live Data The values volts Coolant F rpm temperature vehicle speed wap Psi system status etc for the various PIDS Spark Adv A fn displayed may change as the vehicle s veh Speed MPH operating conditions change 4 A vehicle usually supports several PIDs however only a limited amount of PID data can be displayed on the screen at one time If additional PID data is available a small arrow will be shown on the display Use the the UP and DOWN w butions as necessary to scroll up or down to view all available PID data 110 CarScan Live Data Mode CUSTOMIZING LIVE DATA PIDs m f communication with the vehicle is lost while viewing Live Data a Communication Lost message shows on the Scan Tool s display 5 Press and release the ENTER lt q 4 button to view the currently selected PID in graph mode Press and release the ENTER q button again to return to the PID list 6 Press and hold the ENTER lt 4 button to view the expanded definition for the currently selected PID Press and release
11. QO 87 Octane a 89 Octane a 32 55 F 0 13 C 2 Below freezing 32 F 0 C ENGINE TEMPERATURE WHEN PROBLEM OCCURS QO Vehicle does not move when in gear O Jerks or bucks a Anytime a Hot DRIVING CONDITIONS WHEN PROBLEM OCCURS With headlights on During acceleration Mostly driving downhill Mostly driving uphill Mostly driving level Mostly driving curvy roads Mostly driving rough roads OOo oO oO O o Drive less than 10 miles per day Drive 10 to 50 miles per day Drive more than 50 miles per day m a 91 Octane a More than 91 Octane WEATHER CONDITIONS WHEN PROBLEM OCCURS Q Above 55 F 13 C CHECK ENGINE LIGHT DASH WARNING LIGHT 4 Sometimes ON a Always ON a Never ON PECULIAR SMELLS a Hot a Gasoline QO Sulfur rotten egg a Burning oil Q Burning rubber 2 Electrical STRANGE NOISES a Rattle OQ Squeak 4 Knock a Other CarScan Preparation for Testing BEFORE YOU BEGIN BEFORE YOU BEGIN The Scan Tool aids in monitor ing electronic and emissions related faults in your vehicle and retrieving fault codes related to malfunctions in these systems Mechanical problems such as low oil level or damaged hoses wiring or electrical connectors can cause poor engine performance and may also cause a fault code to set Fix any known mechanical problems before performing any test See your vehicle s service manual or a mechanic for more information Check
12. VIEWING VEHICLE INFORMATION Viewing Available Modules The Scan Tool can retrieve a list of modules supported by the vehicle under test 1 While linked to the vehicle press and release the LD M button m The Main Menu displays Use the UP and DOWN w buttons as necessary to highlight Vehicle Info then press the ENTER lt 41 button m The Vehicle Info Menu displays Use the UP and DOWN w buttons as necessary to highlight Available Modules then press the ENTER lt 4 button Main Menu Select and press Live Data Special Test Vehicle Info Tool Settings Press LD M to exit 3 4 Vehicle Info Menu Select and press Vehicle ID 4 A One moment please message displays while the requested information is retrieved from the vehicle s computer n Press LD M to exit 5 When the retrieval process is completed a complete list of modules supported by the vehicle under test is shown on the Scan Tool s display Use the UP and DOWN w buttons as necessary to view the entire list Available Modules Protocol ISO9141 Module 10 6 When you have finished viewing the list of available modules press the LD M button to exit Press LD M to exit Viewing In use Performance Tracking IPT The Scan Tool can retrieve In use Performance Tracking IPT statistics for monitors supported by the vehicle under test Two values are returned for each
13. Always read your vehicle s service manual and follow its safety precautions before and during any test or service procedure ALWAYS observe the following general safety precautions When an engine is running it produces carbon monoxide a toxic and poisonous gas To prevent serious injury or death from carbon monoxide poisoning operate the vehicle ONLY in a well ventilated area To protect your eyes from propelled objects as well as hot or caustic liquids always wear approved safety eye protection When an engine is running many parts such as the coolant fan pulleys fan belt etc turn at high speed To avoid serious injury always be aware of moving parts Keep a safe distance from these parts as well as other potentially moving objects Engine parts become very hot when the engine is running To prevent severe burns avoid contact with hot engine parts Before starting an engine for testing or troubleshooting make sure the parking brake is engaged Put the transmission in park for automatic transmission or neutral for manual transmission Block the drive wheels with suitable blocks Connecting or disconnecting test equipment when the ignition is ON can damage test equipment and the vehicle s electronic components Turn the ignition OFF before connecting the Scan Tool to or disconnecting the Scan Tool from the vehicle s Data Link Connector DLC CarScan 3 Safety Precautions SAFETY FIRST To preven
14. If the EVAP Leak Test is not supported EVAP Leak Test by the vehicle under test an advisory evap Leak Test not message shows on the Scan Tool s supported display Press the LD M button to return to the System Test menu 3 When the EVAP leak test has been Press LD M to exit initiated by the vehicle s on board computer a confirmation message shows on the Scan Tool s display Press the LD M button to return to the Special Test EVAP Leak lest Menu Test request sent Press LD M to exit CarScan 121 Additional Tests VIEWING VEHICLE INFORMATION VIEWING VEHICLE INFORMATION The Vehicle Info function offers three options for retrieving reference information for the vehicle under test Vehicle ID Available Modules and IPT In Use Performance Tracking Retrieving Vehicle ID Information OF newer OBD2 compliant vehicles The Vehicle ID function is applicable to model year 2000 and The Scan Tool can retrieve a list of information provided by the vehicle manufacturer unique to the vehicle under test from the vehicle s on board computer This information may include eZ 5 122 The vehicle s VIN number The control module identification number The vehicle s calibration ID s These IDs uniquely identify the software version s for the vehicle s control module s The Vehicle s Calibration Verification Number s CVNs required by ODB2 regulations CVNs are used to
15. Indicates that all engine systems are OK and operating normally All monitors supported by the vehicle have run and performed their diagnostic testing and no trouble codes are present All Monitor icons will be solid Yellow LED Indicates one of the following conditions A PENDING CODE IS PRESENT If the yellow LED is illuminated it may indicate a Pending code is present Check the Scan Tool s display for confirmation A Pending code is confirmed by the presence of a numeric code and the word PENDING on the Scan Tool s display MONITOR NOT RUN STATUS If the Scan Tool s display shows a zero indicating there are no DTC s present in the vehicle s computer memory but the yellow LED is illuminated it may be an indication that some of the Monitors supported by the vehicle have not yet run and completed their diagnostic testing Check the Scan Tool s display for confirmation All Monitor icons that are blinking have not yet run and completed their diagnostic testing all Monitor icons that are solid have run and completed their diagnostic testing Red LED Indicates there is a problem with one or more of the vehicle s systems The red LED is also used to indicate that DTC s are present displayed on the Scan Tool s screen In this case the Malfunction Indicator Check Engine lamp on the vehicle s instrument panel will be illuminated DTC s that start with PO P2 and
16. Press LD M to exit If more than one code was retrieved press the DTC FF button as necessary to display additional codes one at a time m Whenever the Scroll function is used to view additional codes the Scan Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWERILINK B button again When the last retrieved DTC has been displayed and the DTC FF button is pressed the Scan Tool returns to the GM Isuzu Enhanced menu m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the LD M button The Scan Tool returns to the Main Menu Temporary DTCs Confirmed DTCs or Temporary DTCs Press CO Mito exit Confirmed DTCs or Pending DTCs Use the UP amp and DOWN w buttons Honda Acura Enhanced as necessary to highlight the desired Select and press option then press the ENTER lt q 4 button Pending DTCs m A One moment please message displays while the Scan Tool retrieves the selected DTCs Press LD M to exit CarScan 45 Using the Scan Tool VIEWING ENHANCED DTCs 46 2 To read the display 3 4 m f the Scan Tool fails to link to the vehicle s computer a Linking Failed message shows on the Scan Tool s display Honda Acura Enhanced Unable to establish a link Verify the ignition is ON then press Withthe yenile Verity the the POWE
17. See ERASING DIAGNOSTIC TROUBLE CODES DTCs on page 53 before erasing codes from the computers memory If a Diagnostic Tool or Scan Tool is used to erase the codes Freeze Frame data will also be erased OBD2 MONITORS To ensure the correct operation of the various emissions related components and systems a diagnostic program was developed and installed in the vehicle s on board computer The program has several procedures and diagnostic strategies Each procedure or diagnostic strategy is made to monitor the operation of and run diagnostic tests on a specific emissions related component or system These tests ensure the system is running correctly and is within the manufacturers specifications On OBD2 systems these procedures and diagnostic strategies are called Monitors Currently fifteen Monitors are supported by OBD2 systems Additional monitors may be added as a result of Government regulations as the OBD2 system grows and matures Not all vehicles support all fifteen Monitors Additionally some Monitors are supported by spark ignition vehicles only while others are supported by compression ignition vehicles only Monitor operation is either Continuous or Non Continuous depending on the specific monitor Continuous Monitors Three of these Monitors are designed to constantly monitor their associated components and or systems for proper operation Continuous Monitors run constantly when the eng
18. Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory 24 CarScan Onboard Diagnostics OBD2 MONITORS NOx Aftertreatment Monitor NOx aftertreatment is based on a catalytic converter support that has been coated with a special washcoat containing zeolites NOx Aftertreatment is designed to reduce oxides of nitrogen emitted in the exhaust stream The zeolite acts as a molecular sponge to trap the NO and NO2 molecules in the exhaust stream In some implementations injection of a reactant before the aftertreatment purges it NO2 in particular is unstable and will join with hydrocarbons to produce H2O and N2 The NOx Aftertreatment Monitor monitors the function of the NOx aftertreatment to ensure that tailpipe emissions remain within acceptable limits The NOx Aftertreatment Monitor is supported by compression ignition vehicles only The NOx Aftertreatment Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in
19. each second This makes them an ideal substitute for the slower mechanical engine controls By switching from mechanical to electronic engine controls vehicle manufacturers are able to control fuel delivery and spark timing more precisely Some newer Computer Control Systems also provide control over other vehicle functions such as transmission brakes charging body and suspension systems CarScan 11 Onboard Diagnostics COMPUTER ENGINE CONTROLS The Basic Engine Computer Control System The Computer Control System consists of an on board computer and several related control devices sensors switches and actuators The on board computer is the heart of the Computer Control System The computer contains several programs with preset reference values for air fuel ratio spark or ignition timing injector pulse width engine speed etc Separate values are provided for various driving conditions such as idle low speed driving high speed driving low load or high load The preset reference values represent the ideal air fuel mixture spark timing transmission gear selection etc for any driving condition These values are programmed by the vehicle manufacturer and are specific to each vehicle model Most on board computers are located inside the vehicle behind the dashboard under the passenger s or driver s seat or behind the right kick panel However some manufacturers may still position it in the engine com
20. into the engine where the vapors are burned The EVAP Monitor checks for proper fuel vapor flow to the engine and pressurizes the system to test for leaks The computer runs this Monitor once per trip The EVAP Monitor is supported by spark ignition vehicles only The EVAP Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the PCM commands the MIL On and saves the code in its long term memory Oxygen Sensor Heater Monitor The Oxygen Sensor Heater Monitor tests the operation of the oxygen sensor s heater There are two modes of operation on a computer controlled vehicle open loop and closed loop The vehicle operates in open loop when the engine is cold before it reaches normal operating temperature The vehicle also goes to open loop mode at other times such as heavy load and full throttle conditions When the vehicle is running in open loop the oxygen sensor signal is ignored by the computer for air fuel mixture corrections Engine efficiency during open loop operation is very low and results in the production of more vehicle emissions Closed loop operation is the best condition for both vehicle emissions and vehicle operation When the vehicle is operating in closed loop the computer uses the oxygen sensor s
21. while the Scan Tool is in enhanced mode Press LD M to exit 1 If not connected already connect the Scan Tool to the vehicle s DLC and turn the ignition On If the Scan Tool is already connected and linked to the vehicle s computer proceed directly to step 4 If not continue to step 2 2 Turn the ignition on DO NOT start the engine Press and release the POWERILINK lt 3E gt button to establish communication with the vehicle s computer 3 Press and release the ERASE button A confirmation message shows on the display Erasing clears all DTCs m f you are sure you want to proceed Freeze Frame Data and press the ERASE button to erase Se you sure S DTCs from the vehicle s computer Nee press ee oun m f you do not want to continue with the erase process press the LD M button to exit the erase mode 54 CarScan Using the Scan Tool I M READINESS TESTING 4 lf you chose to erase DTCs a progress screen displays while the erase function is in progress Erase was s Press the m f the erase was successful a A E confirmation message shows on the display Press the POWER LINK OAD button to return to the DTC screen m f the erase was not successful an advisory message shows on the Erase has failed display Verify that the Scan Tool is Verify the connection at the properly connected to the vehicle s DLC Verify that the ignition switch
22. 40 Boost Pressure Once per System Monitor trip 1 2 1 3 trips 49 Exhaust Gas Sensor Once per Monitor rip 1 2 1 3 trips 40 PM Filter Monitor a 1 2 1 3 trips 40 CarScan 27 Preparation for Testing PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET The purpose of this form is to help you gather preliminary information on your vehicle before you retrieve codes By having a complete account of your vehicle s current problem s you will be able to systematically pinpoint the problem s by comparing your answers to the fault codes you retrieve You can also provide this information to your mechanic to assist in diagnosis and help avoid costly and unnecessary repairs It is important for you to complete this form to help you and or your mechanic have a clear understanding of your vehicle s problems NAME DATE VIN YEAR MAKE MODEL ENGINE SIZE VEHICLE MILEAGE VIN Vehicle Identification Number found at the base of the windshield on a metallic plate or at the driver door latch area consult your vehicle owner s manual for location TRANSMISSION Q Automatic 2 Manual Please check all applicable items in each category DESCRIBE THE PROBLEM 28 CarScan Preparation for Testing PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET WHEN DID YOU FIRST NOTICE THE PROBLEM a Just
23. Cable Adaptor Installs on cable item 14 when connecting to a Chrysler OBD1 Data Link Connector FORD Connector Cable Adaptor Installs on cable item 14 when connecting to a Ford OBD1 Data Link Connector GM Connector Cable Adaptor Installs on cable item 14 when connecting to a GM OBD1 Data Link Connector HONDA Connector Cable Adaptor Installs on cable item 14 when connecting to a Honda OBD1 Data Link Connector OBD Il Cable Connects the scan tool to the vehicle s Data Link Connector DLC when retrieving codes from OBD II systems TOYOTA Connector Cable Adaptor Installs on cable item 14 when connecting to a Toyota OBD1 Data Link Connector CarScan Scan Tool Controls DISPLAY FUNCTIONS DISPLAY FUNCTIONS 11 12 13 3 3 T x EV 1 T2 pSSgeSa0 A 542 OSGSG0G Uhl P0743 Generic ba Torque Converter Clutch g Solenoid Circuit Electrical Figure 2 Display Functions See Figure 2 for the locations of items 1 through 14 following 1 2 I M MONITOR STATUS field Identifies the I M Monitor status area Monitor icons Indicate which Monitors are supported by the vehicle under test and whether or not the associated Monitor has run its diagnostic testing Monitor status When a Monitor icon is solid it indicates that the associated Monitor has completed its diagnostic testing When a Monitor icon is flashing it indicates that the vehicle supports the associated Monitor but
24. DOWN buttons as necessary to highlight Non Continuous Test then press the ENTER lt q 4 button 2 A One moment please message displays while the request is sent to the vehicle s on board computer Special Test Menu Select and press O2 Sensor Test Non Continuous Test EVAP Leak Test m The Select Test screen displays The Press LD M to exit screen shows all tests applicable to the vehicle under test Refer to the vehicle s service repair manual for information related to non continuous tests Non Continuous Test Select and press 1 4 TestID 02 TestID 04 TestID 06 If non continuous tests are not supported by the vehicle under test an advisory message shows on the Scan Tool s display Press the LD M button to return to the Special Test Menu 3 Use the UP and DOWN buttons as necessary to highlight the desired test then press the ENTER lt 4 button 4 When test results have been retrieved data for the selected test will show on the Scan Tool s display The display shows the following information e Press LD M to exit Non Continuous Test Non Continuous Test not supported Press LD M to exit m Test ID number Module ID number m Component ID number m Min or Max test limit Test ID 02 Press LD M to exit Component ID Min 001C Max N A Test Value 00FF ON CarScan Additional Tests SPECIAL TEST MENU
25. Data This information includes values volts rpm temperature speed etc and system status information open loop closed loop fuel system status etc generated by the various vehicle sensors switches and actuators In effect the Scan Tool lets you view in real time the same signal values generated by the sensors actuators switches and or vehicle system status information used by the vehicle s computer when calculating and conducting system adjustments and corrections The real time Live Data vehicle operating information values status that the computer supplies to the Scan Tool for each sensor actuator switch etc is called Parameter Identification PID Data Each PID sensor actuator switch status etc has a set of operating characteristics and features parameters that serve to identify it The Scan Tool displays this information for each sensor actuator switch or status that is supported by the vehicle under test WARNING If the vehicle must be driven in order to perform a Sr troubleshooting procedure ALWAYS have a second person help you One person should drive the vehicle while the other person observes the Scan Tool data Trying to drive and operate the Scan Tool at the same time is dangerous and could cause a serious traffic accident VIEWING LIVE DATA 1 While linked to the vehicle start the engine Main Menu e 4 2 Select and press i then press and release the LD M button m The
26. Follow the testing and repair procedures outlined in the vehicle s service repair manual to correct DTCs Codes should be addressed and eliminated in the order they were received erasing see ERASING DTCs on page 99 and retesting after each repair is made to be sure the fault was eliminated VIEWING DTCs IN THE SCAN TOOL S MEMORY To view DTCs stored in the Scan Tool s memory do the following 1 Perform steps 1 and 2 of the CODE RETRIEVAL PROCEDURE in page 96 m The Honda OBD1 Menu displays Mend 2 Use the UP g and DOWN w buttons Read DTCs as necessary to select Review DTCs then press the ENTER lt 4 button m The Scan Tool s display shows the first o DTC stored in memory DTC 16 nonda 0801 Fuel Injector Circuit 3 If more than one code was retrieved press the DTC FF button as necessary to display additional codes one at a time In the case of long code definitions a small arrow is shown E in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the and W buttons as necessary to view the additional information 4 When the last DTC has been displayed and the DTC FF button is pressed the screen returns to the first DTC retrieved Press the LD M button to return to the Honda OBD1 Menu 5 Disconnect the Scan Tool from the vehicle and turn the ignition key OFF 98 CarScan Honda OBD1 Systems ERASING DTCs ERASING
27. Monitor This Monitor continuously checks for engine misfires A misfire occurs when the air fuel mixture in the cylinder does not ignite The misfire Monitor uses changes in crankshaft speed to sense an engine misfire When a cylinder misfires it no longer contributes to the speed of the engine and engine speed decreases each time the affected cylinder s misfire The misfire Monitor is designed to sense engine speed fluctuations and determine from which cylinder s the misfire is coming as well as how bad the misfire is There are three types of engine misfires Types 1 2 and 3 Type 1 and Type 3 misfires are two trip monitor faults If a fault is sensed on the first trip the computer temporarily saves the fault in its memory as a Pending Code The MIL is not commanded on at this time If the fault is found again on the second trip under similar conditions of engine speed load and temperature the computer commands the MIL On and the code is saved in its long term memory Type 2 misfires are the most severe type of misfire When a Type 2 misfire is sensed on the first trip the computer commands the MIL to light when the misfire is sensed If the computer determines that a Type 2 misfire is severe and may cause catalytic converter damage it commands the MIL to flash once per second as soon as the misfire is sensed When the misfire is no longer present the MIL reverts to steady On condition The Misfire Monito
28. PROCEDURE page 33 which of the two possible conditions is causing the yellow LED to light m f a PENDING Diagnostic Trouble Code is causing the yellow LED to light it is possible that the vehicle will be allowed to be tested for emissions and certified Currently most areas states countries will allow an Emissions Test Smog Check to be performed if the only code in the vehicle s computer is a PENDING Diagnostic Trouble Code m If the illumination of the Yellow LED is being caused by monitors that have not run their diagnostic testing then the issue of the vehicle being ready for an Emissions Test Smog Check depends on the emissions regulations and laws of your local area Some areas require that all Monitors indicate a Has Run status before they allow an Emissions Test Smog System Status EE EE I M MONITOR STATUS H I ERER li P0743 Generic Torque Converter Clutch Solenoid Circuit Electrical System Status 2 aSSO SO OsGSooG No Powertrain DTCs or Freeze Frame data presently stored in the vehicle s computer Press the DTC button to view your Enhanced DTCs Check to be performed Other areas only require that some but not all Monitors have run their self diagnostic testing before an Emissions Test Smog Check may be performed From the code retrieval procedure determine the status of each Monitor a solid Monitor icon shows Monitor Has Run statu
29. RETRIEVAL PROCEDURES KOER TEST 80 9 eT 10 11 e m Turn the steering wheel 1 2 turn to right hold for four seconds and release m Press the brake pedal to the floor and then release it m Cycle the equipped Overdrive Switch if m Quickly press the accelerator pedal to the floor and then release it After the above procedures are performed a One moment please KOER test is in progress message shows temporarily on the Scan Tool s LCD display followed by a Retrieving codes message Most Ford EEC IV vehicle computers up to 1991 use a two digit code system From 1991 to 1995 most use a three digit code system If no problems are found during the KOER Self Test the computer sends a PASS code code 11 or 111 to the Scan Tool Code 11 or 111 indicates that all the relays and actuators and their related circuits that were tested during the KOER Self Test are OK and no faults were found KOER Test Turn steering wheel 1 2 turn to right and hold for 4 seconds and release KOER Test One moment please KOER test is in progress Press LD M to exit H 2 EEC IV KOER DTC 111 System PASS no KOER fault codes present After the Scan Tool retrieves all the KOER Self Test DTCs turn the engine off and disconnect the Scan Tool from the vehicle s test connectors The DTCs retrieved are now stored in the Scan Tool s memory All retrieved DTCs will remain
30. Scan Tool and possible damage to the vehicle s computer system Connect the Scan Tool to BOTH large six pin female connector with molded housing small single pin female connector 1988 and newer vehicles may have more than one similar connector for other systems i e Anti Lock Brakes Only the connector with an extra single pin is the correct test connector for computer service codes use If you have any questions about the correct connector please refer to your vehicle s service manual for detailed information DIAGNOSTIC TROUBLE CODES DTCs Diagnostic Trouble Codes or Fault Codes can be used to identify engine systems or components that are malfunctioning The computer records codes for two types of problems Hard Diagnostic Trouble Codes Hard DTCs represent problems which are happening now and cause the instrument panel Malfunction Indicator Lamp MIL or Check engine light to illuminate and remain on until the failure is repaired A DTC is stored in the vehicle s computer memory for each fault detected A Tool or Scanner can be used to retrieve DTCs that are stored in the vehicle s computer memory Intermittent History DTCs Intermittent History DTCs are stored in the computer s memory for problems that occur intermittently or for problems that happened in the past but are not currently present Intermittent DTCs may cause the Malfunction Indicator light to flicker or stay on until the intermittent ma
31. Sensor 1 O2S Voltage 02S B2 S2 V X XXX Bank 2 Sensor 2 O2S B2 S2 mA X XXX Bank 2 Sensor 2 O2S Current mA 02S B2 S2 V V X XXX Bank 2 Sensor 2 O2S Voltage 02S B2 3 V X XXX Bank 2 Sensor 3 O2S B2 S3 mA X XXX Bank 2 Sensor 3 O2S Current mA 02S B2 3 V V X XXX Bank 2 Sensor 3 02S Voltage O2S B2 S4 V X XXX Bank 2 Sensor 4 O2S B2 S4 mA X XXX Bank 2 Sensor 4 O2S Current mA 02S B2 S4 V V X XXX Bank 2 Sensor 4 O2S Voltage 02S Location O2S11 Oxygen Sensor Bank 1 Sensor 1 O2S Location 02812 Oxygen Sensor Bank 1 Sensor 2 02S Location 02513 Oxygen Sensor Bank 1 Sensor 3 O2S Location 02514 Oxygen Sensor Bank 1 Sensor 4 O2S Location 02821 Oxygen Sensor Bank 2 Sensor 1 O2S Location 02822 Oxygen Sensor Bank 2 Sensor 1 O2S Location 02823 Oxygen Sensor Bank 2 Sensor 3 02S Location 02824 Oxygen Sensor Bank 2 Sensor 4 O2S Location 7 02S11 Oxygen Sensor Bank 1 Sensor 1 O2S Location 02812 Oxygen Sensor Bank 1 Sensor 2 02S Location 02821 Oxygen Sensor Bank 2 Sensor 1 O2S Location S 02822 Oxygen Sensor Bank 2 Sensor 2 O2S Location 7 02831 Oxygen Sensor Bank 3 Sensor 1 O2S Location 02832 Oxygen Sensor Bank 3 Sensor 2 O2S Location 02541 Oxygen Sensor Bank 4 Sensor 1 O2S Location 7 02842 Oxygen Sensor Bank 4 Sensor 2 OBD Support OBD2 OBD Requirements CarScan 131 Generic Global OBD2 PID List Tool Display Unit Value PID Description OB
32. Speed Sensor mph 132 CarScan Generic Global OBD2 PID List Tool Display Unit Value PID Description Warm up DTC XXX Warm ups since DTC Cleared Clr CarScan 133 Vehicle Applications Makes Covered ABS The Scan Tool has the ability to retrieve and erase ABS codes Vehicle makes supported by the Scan Tool are shown below Please visit pro innova com for a complete list of vehicles covered DOMESTIC MAKES BUICK JEEP CADILLAC LEXUS CHEVROLET LINCOLN CHRYSLER MERCURY DODGE OLDSMOBILE FORD PONTIAC GMC SCION HUMMER TOYOTA ASIAN MAKES OPTIONAL UPGRADE ACURA INFINITI HONDA KIA HYUNDAI NISSAN EUROPEAN MAKES OPTIONAL UPGRADE AUDI MINI BMW VOLKSWAGEN MERCEDES BENZ 134 CarScan Vehicle Applications Makes Covered SRS The Scan Tool has the ability to retrieve and erase SRS codes Vehicle makes supported by the Scan Tool are shown below Please visit pro innova com for a complete list of vehicles covered DOMESTIC MAKES BUICK JEEP CADILLAC LEXUS CHEVROLET LINCOLN CHRYSLER MERCURY DODGE OLDSMOBILE FORD PONTIAC GMC SCION HUMMER TOYOTA ASIAN MAKES OPTIONAL UPGRADE EUROPEAN MAKES OPTIONAL UPGRADE ACURA INFINITI HONDA KIA HYUNDAI NISSAN AUDI MINI BMW VOLKSWAGEN MERCEDES BENZ CarScan 135
33. Troubleshoot Download 3 Connect the Scan Tool to your PC using a Mini USB cable cable included m Your default web browser launches automatically and connects to the pro innova com website 4 Login to your RepairSolutions account using your registered Email Address and Password If you have not yet established an account you must Sr register for a FREE RepairSolutions account before proceeding CarScan 61 Chrysler Jeep OBD1 Systems CHRYSLER JEEP OBD1 SYSTEMS CHRYSLER JEEP OBD1 SYSTEMS Chrysler Motors On Board Computer Systems Chrysler Motors introduced its first electronic fuel injected vehicle in late 1983 The on board computer management systems used on Chrysler vehicles have evolved over the years and their names have changed accordingly 1983 87 The on board computer used in these vehicles is a split system composed of two separate units the Logic Module and the Power Module The Logic Module contains a microprocessor which processes data received from sensors located throughout the vehicle and makes decisions based on these inputs which effect engine operation The Logic Module is usually located on the right hand side behind the kick panel The Power Module supplies operating power to the Logic Module and contains the circuits which control the high current devices Power Module operation is controlled by the Logic Module The Power Module is located in the engine compartment near the vehi
34. When a vehicle first comes from the factory all Monitors SE indicate a HAVE RUN status This indicates that all Monitors have run and completed their diagnostic testing The HAVE RUN status remains in the computer s memory unless the Diagnostic Trouble Codes are erased or the vehicle s computer memory is cleared The Scan Tool allows you to retrieve Monitor System Status Information to help you determine if the vehicle is ready for an Emissions Test Smog Check In addition to retrieving Diagnostic Trouble Codes the Scan Tool also retrieves Monitor Run Not Run status This information is very important since different areas of the state country have different emissions laws and regulations concerning Monitor Run Not Run status Before an Emissions Test Smog Check can be performed your vehicle must meet certain rules requirements and procedures legislated by the Federal and state country governments where you live 1 In most areas one of the requirements that must be met before a vehicle is allowed to be Emissions Tested Smog Checked is that the vehicle does not have any Diagnostic Trouble Codes present with the exception of PENDING Diagnostic Trouble Codes 2 In addition to the requirement that no Diagnostic Trouble Codes be present some areas also require that all the Monitors that a particular vehicle supports indicate a Has Run status condition before an Emissions Check may be performed 3 Other areas
35. and dis connect the Scan Tool Contact Technical Support for assistance If the Scan Tool was able to link to the vehicle successfully a Code retrieval was successful message shows temporarily on the Scan Tools LCD display followed by any retrieved DTCs m The Scan Tool will display a code only if codes are present in the vehicle s computer memory If no codes are present a No DTC s are presently stored in the vehicle s computer is displayed Contact Technical Support Press LD M to exit i DTC 34 cm osp1 Mass Air Flow Sensor Failure If more than one code was retrieved press the DTC FF button as necessary to display additional codes one at a time In the case of long code definitions a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the gy and Ww buttons as necessary to view the additional information Code 12 will always be present and it has one of the following meanings If code 12 is the only DTC retrieved and your vehicle STARTS OK then code 12 indicates system PASS and all computer control systems are functioning properly If code 12 is present and your vehicle DOES NOT START then it may indicate a problem with the ignition control system CarScan 93 GM OBD1 Systems CODE RETRIEVAL PROCEDURE 94 10 Disconnect the Scan Tool from the vehicle and tur
36. area the stricter dynamometer type test may not be required I M Readiness Monitors I M Readiness shows whether the various emissions related systems on the vehicle are operating properly and are ready for Inspection and Maintenance testing CarScan 55 Using the Scan Tool I M READINESS TESTING State and Federal Governments enacted Regulations Procedures and Emission Standards to ensure that all emissions related components and systems are continuously or periodically monitored tested and diagnosed whenever the vehicle is in operation It also requires vehicle manufacturers to automatically detect and report any problems or faults that may increase the vehicle s emissions to an unacceptable level The vehicle s emissions control system consists of several components or sub systems Oxygen Sensor Catalytic Converter EGR Fuel System etc that aid in reducing vehicle emissions To have an efficient Vehicle Emission Control System all the emissions related components and systems must work correctly whenever the vehicle is in operation To comply with State and Federal Government regulations vehicle manufacturers designed a series of special computer programs called Monitors that are programmed into the vehicle s computer Each of these Monitors is specifically designed to run tests and diagnostics on a specific emissions related component or system Oxygen Sensor Catalytic Converter EGR Valve Fuel System etc
37. as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory CarScan 25 Onboard Diagnostics OBD2 MONITORS PM Filter Monitor The particulate matter PM filter removes particulate matter from the exhaust stream by filtration The filter has a honeycomb structure similar to a catalyst substrate but with the channels blocked at alternate ends This forces the exhaust gas to flow through the walls between the channels filtering the particulate matter out The filters are self cleaning by periodic modification of the exhaust gas concentration in order to burn off the trapped particles oxidizing the particles to form CO2 and water The computer monitors the efficiency of the filter in trapping particulate matter as well as the ability of the filter to regenerate self clean The PM Filter Monitor is supported by compression ignition vehicles only The PM Filter Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory OBD2 Reference Table 26 The table below lists current OBD2 Monitors and indicates the
38. codes any prior codes in its memory are automatically cleared 66 CarScan Ford OBD1 Systems FORD COMPUTER SYSTEM OVERVIEW VEHICLES COVERED FORD COMPUTER SYSTEM OVERVIEW The Scan Tool is compatible only with EEC IV Computer Control systems IMPORTANT When the computer is in Self Test mode is testing the sensors or actuators for proper operation it relies on voltage signals that is sends to and or receives from the sensors or actuators to determine whether or not these components are operating properly The sensors and actuators are all connected to the computer by wires If any defects are present in any part of the circuit that connects these devices to the computer such as defective connectors or wires faulty grounds improper voltage shorts etc the voltage signal that the computer receives from these devices will be affected The computer has no way of determining if the improper voltage signal is being caused by a defect in the circuit or by the sensors or actuators themselves Keep this in mind when servicing fault codes and do not replace any devices sensors or actuators before checking the complete circuit or circuits that are part of the device from which the code was generated e VEHICLES COVERED CAR Ford Lincoln Mercury Computer System Tool Application Table The following table lists the year and model of all the cars that are covered by the Scan Tool
39. connector and is usually black or gray in color m The connector is located under the dash on the left hand side It may have a protective cap that needs to be removed before connecting the Scan Tool s DLC Use the round head of the Toyota Connector Cable Adaptor on vehicles with this type of connector INSTRUMENT PANEL MALFUNCTION INDICATOR LIGHTS MIL Your vehicle s instrument panel has a Malfunction Indicator Light MIL also called the Check Engine or Service Engine soon light The MIL is an indicator to warn the vehicle operator of a problem in the computer control system ENGINE CHECK ENGINE ENGINI 104 CarScan Toyota Lexus OBD1 Systems DIAGNOSTIC TROUBLE CODES CODE RETRIEVAL PROCEDURE If your instrument panel indicator lights do not come on when you turn on the ignition please refer to your vehicle s service manual You may have problems in the car s circuitry It is recommended that you fix these problems before retrieving DTCs from your vehicle s computer DIAGNOSTIC TROUBLE CODES Diagnostic Trouble Codes or Fault Codes can be used to identify engine systems or components that are malfunctioning The computer records codes for the following two types of engine problems Hard Diagnostic Trouble Codes Hard DTCs represent problems that are occurring now and cause the instrument panel Malfunction Indicator Lamp MIL or Check Engine light to illuminate and remain on until the fai
40. determine if emission related calibrations for the vehicle under test have been changed One or more CVNs may be returned by the vehicle s computer While linked to the vehicle press and release the LD M button m The Main Menu displays Use the UP amp and DOWN w buttons as necessary to highlight Vehicle Info then press the ENTER lt 41 button m The Vehicle Info Menu displays Use the UP jg and DOWN w buttons as necessary to highlight Vehicle ID then press the ENTER lt 4 button A One moment please message displays while the requested information is retrieved from the vehicle s computer The first time the Vehicle ID function is used it may take several minutes to Main Menu Select and press i Live Data Special Test Vehicle Info Tool Settings Press LD M to exit 3 4 Vehicle Info Menu Select and press Vehicle ID Available Modules IPT Press LD M to exit retrieve the information from the vehicle s computer When the retrieval process is completed the vehicle ID information is shown on the Scan Tool s display Use the UP and DOWN Ww buttons as necessary to view the entire list Vehicle Information VIN 2G2GT22QPT3200012 Module 20 Cal ID HYBGH31x HEX CVN E5 6C 02 6E Press LD M to exit When you have finished viewing the retrieved vehicle ID information press the LD M button to exit CarScan Additional Tests
41. for If the Scan Tool was able to link to the vehicle successfully a Wiggle test is active message shows temporarily on the Scan Tools LCD display This is followed by a message instructing you how to perform the test m Press the LD M button if you wish to exit the Wiggle Test at this time Wiggle tap and move the suspected sensor or wiring m f no faults are detected when performing the Wiggle Test a System Pass message displays m f a fault is detected when performing the Wiggle Test a Circuit Fault detected message displays If the Wiggle Test detects any problems the related DTC will be stored by the com puter in Continuous Mem ory To view any Wiggle Test DTC s you must perform the KOEO Test See page 73 for KOEO Test procedures Follow the procedures in the vehicle s service repair manual to perform troubleshooting and repairs for Wiggle Test results Contact Technical Support Press LD M to exit KOER Wiggle Test Wiggle test is active KOER Wiggle Test Wiggle tap and move the sensor or wiring Press LD M to exit KOER Wiggle Test Results System Pass Press LD M to exit KOER Wiggle Test Results Circuit fault detected Press LD M to exit 11 The Wiggle Test will stay active as long as desired To quit the Wiggle Test turn the ignition OFF and disconnect the Scan Tool from the vehicle 88 CarScan GM OBD1 Systems YOUR VEHICLE S CO
42. if the Scan Tool is re linked to a vehicle to retrieve codes data any prior codes data in its memory are automatically cleared CarScan Using the Scan Tool THE ENHANCED MAIN MENU THE ENHANCED MAIN MENU Following the code retrieval procedure see CODE RETRIEVAL PROCEDURE on page 33 when the last retrieved DTC has been displayed and the DTC FF button is pressed the Scan Tool enters the enhanced mode The enhanced mode provides the ability to retrieve enhanced DTCs from most Chrysler Jeep Ford Mazda GM Isuzu Honda Acura and Toyota Lexus vehicles The types of enhanced data available depends on the vehicle make You can also retrieve Anti Lock Brake System ABS DTCs and Supplemental Restraint System SRS DTCs The screen shown when the Scan Tool enters the enhanced mode depends on the type s of DTC s returned during the code retrieval process m When the last retrieved DTC has been displayed and the DTC FF button is pressed the Enhanced Menu displays Use the UP and DOWN w butions as necessary to highlight the desired option then press the ENTER lt 4 button to view the selected information or press the LD M button to return to the OBD2 DTC screen If no DTCs were retrieved or only generic DTCs were retrieved and View ABS DTCs View SRS DTCs or View Enhanced DTCs is selected the Select Manufacturer screen displays Use the UP and DOWN Ww buttons as necessary to highlight
43. in the Scan Tool s memory If the KOER Test procedure is performed again DTC s from a prior test will automatically clear and will be replaced by the most current DTCs retrieved 12 All KOER codes that are retrieved by the Scan Tool during the KOER Self Test represent problems that are present now at the time the test is performed The related vehicle problems that caused the codes to be sent must be repaired using the procedures 13 14 15 described in the vehicle s repair manual After all repairs have been completed repeat the KOER Self Test If a pass code code 11 or 111 is received it indicates that the repairs were successful and all the related systems are working properly lf a pass code code 111 or 111 is not received the repair was unsuccessful Consult the vehicle s service manual and recheck repair procedure H 2 DTC 111 Koen System PASS no KOER fault codes present CarScan Ford OBD1 Systems ADDITIONAL TESTS FOR EEC IV SYSTEMS CYLINDER BALANCE TEST ADDITIONAL TESTS FOR EEC IV SYSTEMS These tests are additional supplemental tests and are not Sy needed to retrieve Diagnostic Trouble Codes Ford has included them to further assist the technician do it yourselfer in the troubleshooting of vehicle problems Cylinder Balance Test Vehicles equipped with Sequential Electronic Fuel Injected SEFI systems only The Cylinder Balance Test assists in finding a
44. is ON Press the DLC and that the ignition is on then repeat steps 2 and 3 above Erasing DTCs does not fix the problem s that caused the Sr code s to be set If proper repairs to correct the problem that caused the code s to be set are not made the code s will appear again and the check engine light will illuminate as soon as the vehicle is driven long enough for its Monitors to complete their testing I M READINESS TESTING I M is an Inspection and Maintenance program legislated by the Government to meet federal clean air standards The program requires that a vehicle be taken periodically to an Emissions Station for an Emissions Test or Smog Check where the emissions related components and systems are inspected and tested for proper operation Emissions Tests are generally performed once a year or once every two years On OBD2 systems the I M program is enhanced by requiring vehicles to meet stricter test standards One of the tests instituted by the Federal Government is called I M 240 On I M 240 the vehicle under test is driven under different speeds and load conditions on a dynamometer for 240 seconds while the vehicle s emissions are measured Emissions tests vary depending on the geographic or regional Sr area in which the vehicle is registered If the vehicle is registered in a highly urbanized area the I M 240 is probably the type of test required If the vehicle is registered in a rural
45. is pressed the Scan Tool returns to the Chrysler Enhanced menu m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the LD M button The Scan Tool returns to the Main Menu Ford Mazda Enhanced DTCs 42 Mazda Enhanced DTCs are available for Mazda branded Ford vehicles only When the Scan Tool enters the enhanced mode and Ford Mazda is selected if prompted the Ford Mazda Enhanced menu displays You may view DTCs for either the Continuous Memory Test KOEO Key On Engine Off Test or KOER Key On Engine Running Test 1 2 Use the UP jg and DOWN w buttons as necessary to highlight the desired option then press the ENTER lt 4 button When choosing to view KOER Test DTCs start the vehicle s engine before making your selection Ford Mazda Enhanced Select and press 4 Continuous Memory Test KOEO Test KOER Test A One moment please message Press BAM toixit displays while the Scan Tool retrieves the selected DTCs If the Scan Tool fails to link to the vehicle s computer a Linking Failed message shows on the Scan Tool s Display Verify the ignition is ON then press the POWERILINK B button to continue If the KOER Test was selected and the vehicle s engine is not running an advisory message shows on the Scan Tool s display Press the ENTER lt 4 button to return to
46. some P3 are considered Generic System Status E mm zogsEEgep U An TOTOO 00 No Powertrain DTCs or Freeze Frame data presently stored in the vehicle s computer Press the DTC button to view your Enhanced DTCs System Status EE E g OESSSOHSO rons D Me OSGSOSGD Ge P0743 Generic Torque Converter Clutch Solenoid Circuit Electrical System Status mE a FasSGErzq 4 OSGsosGg oo No Powertrain DTCs or Freeze Frame data presently stored in the vehicle s computer Press the DTC button to view your Enhanced DTCs System Status EE mE I M MONITOR STATUS l oS cm g VEES mme Oe PO 7 4 3 eneric Torque Converter Clutch Solenoid Circuit Electrical Universal All Generic DTC definitions are the same on all OBD2 equipped vehicles The Scan Tool automatically displays the code definitions if available for Generic DTC s CarScan e Using the Scan Tool CODE RETRIEVAL PROCEDURE DTC s that start with P1 and some P3 are Manufacturer specific codes and their code definitions vary with each vehicle manufacturer When a Manufacturer Alfa Romeo specific DTC is retrieved the LCD Ford display shows a list of vehicle By unas manufacturers Use the UP and DOWN Ww buttons as necessary to highlight the appropriate manufacturer then press the ENTER lt 4 button to display the correct code definition for your vehicle A confirmation message shows on
47. the Monitor has not yet run its diagnostic testing amp Vehicle icon Indicates whether or not the Scan Tool is being properly powered through the vehicle s Data Link Connector DLC A visible icon indicates that the Scan Tool is being powered through the vehicle s DLC connector ab Link icon Indicates whether or not the Scan Tool is communicating linked with the vehicle s on board computer When visible the Scan Tool is communicating with the computer If the Link icon is not visible the Scan Tool is not communicating with the computer o Computer icon When this icon is visible it indicates that the Scan Tool is linked to a personal computer Optional software is available that makes it possible to upload retrieved data to a personal computer CarScan 9 Scan Tool Controls DISPLAY FUNCTIONS 10 10 11 12 13 14 Scan Tool Internal Battery icon When visible indicates the Scan Tool batteries are low and should be replaced If the batteries are not replaced when the battery symbol is on all 3 LEDs will light up as a last resort indicator to warn you that the batteries need replacement No data will be displayed on screen when all 3 LEDs are lit DTC Display Area Displays the Diagnostic Trouble Code DTC number Each fault is assigned a code number that is specific to that fault Test Data Display Area Displays DTC definitions Freeze Frame data Live Data and other pert
48. the appropriate manufacturer then press the ENTER button to view the selected information e If the manufacturer of the vehicle from which codes were retrieved is not listed press the LD M button to return to the OBD2 DTC screen Enhanced data is not available for your vehicle If a Manufacturer specific DTC was retrieved and the manufacturer selected for the code was Chrysler Jeep Ford Mazda General Motors Isuzu Honda Acura Toyota or Lexus the Select Data menu displays as appropriate Use the UP and DOWN w buttons as necessary to highlight the desired option the press the ENTER q4 button to view the selected information or press the LD M button to return to the OBD2 DTC screen CarScan Enhanced Menu Select and press 4 View Enhanced DTCs View ABS DTCs View SRS DTCs Press LD M to exit ABS DTCs are available for the following vehicles GM Honda Chrysler Mercedes Audi Volkswagen Hyundai Kia Nissan Infiniti Mini Exit Enhanced DTCs are available for the following vehicles GM Honda Chrysler Toyota Exit Ford Mazda Enhanced Select and press 1 Continuous Memory Test KOEO Test KOER Test Press LD M to exit 39 Using the Scan Tool VIEWING ENHANCED DTCs m f a Manufacturer specific DTC was retrieved and the manufacturer selected for the code was not Chrysler Jeep Ford Mazda General Motors Isuzu Honda Acura T
49. then press the ENTER button CarScan Main Menu 2 5 Select and press i View Live Data View Enhanced DTCs View ABS DTCs View SRS DTCs Press LD M to exit Live Data Menu Select and press 4 Custom Live Data Record Live Data Playback Live Data Press LD M to exit 111 Live Data Mode RECORDING CAPTURING LIVE DATA m The Custom Live Data menu displays with the first PID in the menu highlighted Custom Live Data 4 Use the UP g and DOWN w buttons ees us to scroll through the available PIDs When fuel Ri the PID you wish to display is highlighted ECT F press the ENTER 4 button to select it a cegigse checkmark will show in the checkbox to SA RR 0 the right of the PID to confirm your S selection Repeat the procedure until only the PIDs you want to display have all been selected m To deselect a currently selected PID highlight the PID then press the ENTER lt q 41 button The checkmark will be removed from the checkbox 5 When you are finished making your selection s scroll to the end of the PID list and highlight the word DONE then press the ENTER button m The Scan Tool is now in Custom Live Data mode Only the PIDs you selected are shown on the Scan Tools display 6 To exit the Custom Live Data mode press the LD M button until the Main Menu displays RECORD
50. to Wiggle Test continue Turn ignition ON Select and m To perform the KOER Wiggle Test Ero Wiggle Test KOER Wiggle Test Highlight KOER Wiggle Test Turn the ignition ON and start the engine Press the ENTER lt 4 button to continue 7 A One moment please test is in progress message shows temporarily on the Scan Tool s LCD display a if the Scan Tool fails to link to the meteiss vehicle s computer a Vehicle is not responding Check DLC responding message shows on the cable connections Scan Tools LCD display Do the Presa A toyeonuinue following For KOEO Wiggle Test Verify the ignition is ON KOER Wiggle Test Turn the ignition OFF wait 10 seconds then turn back ON to reset the computer Press the ENTER lt 4 button to continue For KOER Wiggle Test Turn the engine OFF wait 10 seconds then turn back ON Press the ENTER lt 4 button to continue BE SURE to perform the added procedures in step 6 if C appropriate for your vehicle BEFORE turning the ignition ON Press ENTER lt 4 button to continue CarScan 87 Ford OBD1 Systems ADDITIONAL TESTS FOR EEC IV SYSTEMS WIGGLE TEST 8 10 m f the Scan Tool cannot link to the vehicles computer the message Contact Technical Support displays Press the LD M button to return to the Ford OBD1 menu Turn the ignition OFF and dis connect the Scan Tool Contact Technical assistance Support
51. to the Tool Settings Menu Enabling the Audible Tone 1 Use the UP g and DOWN w buttons as necessary to highlight Audible Tone in the Tool Settings Menu then press the ENTER lt 4 button m The Audible Tone screen displays Press the UP g or DOWN w button as necessary to highlight ON or OFF as desired When the desired option is selected press the ENTER button to save your changes and return to the Tool Settings Menu CarScan Tool Settings Menu Select and press 7 Adjust Brightness Display Backlight DTC Library Firmware Version Audible Tone Select and press PON OFF Press LD M to exit 125 Additional Tests ADJUSTMENTS AND SETTINGS Using the Backlight 1 Use the UP g and DOWN w buttons as necessary to highlight Display Backlight in the Tool Settings Menu then press the ENTER lt 4 button m The Display Backlight screen displays Press the UP amp or DOWN w button as necessary to select the desired backlight mode either ON or OFF When the desired backlight mode is selected press the ENTER lt 4 button to save your changes m The display returns to the Tool Settings Menu and the backlight turns on or off as selected Tool Settings Menu Select and press Adjust Brightness Audible Tone DTC Library Firmware Version Display Backlight Select and press ON OFF Press LD M to exi
52. vehicle operation is only one part of an overall diagnostic strategy Never replace a part based only on the DTC definition Each DTC has a set of testing procedures instructions and flow charts that must be followed to confirm the location of the problem This information is found in the vehicle s service manual Always refer to the vehicle s service manual for detailed testing instructions Check your vehicle thoroughly before performing E any test See BEFORE YOU BEGIN on page 31 for details ALWAYS observe safety precautions whenever working on a vehicle See Safety Precautions on page 3 for more informa tion 1 Locate the vehicle s Data Link Connector DLC See Data Link Connector DLC on page 63 for connector location Some DLCs have a plastic cover that must be removed before connecting the Scan Tool s cable connector 2 Connect the Scan Tool cable with the Chrysler Connector Cable Adaptor attached to the Scan Tool then connect the adaptor to the vehicle s DLC Press the POWERILINK lt button to turn the Scan Tool ON m Set the parking brake and make sure all vehicle accessories are turned off 3 Turn the ignition ON DO NOT start the engine m The Chrysler OBD1 Menu displays 4 To view codes in the Scan Tool s memory m Use the UP and DOWN w Henu buttons as necessary to highlight OA Review DTCs then press the ENTER 11989 1994 o 4 button 5 To retrieve codes from the vebhic
53. CEDURES ENGINE TIMING CHECK Engine Timing Check Before performing the KOER Self Test the vehicle s Ignition SE Base Timing and the computer s ability to electronically control timing advance must be checked for proper operation Maladjustment of ignition timing or a problem in the advance circuit might generate false fault codes when performing the KOER Self Test that would cause the test to be invalid Use the following procedures to check for proper ignition timing and to verify the computer s ability to electronically advance ignition timing The following Timing Check procedure is only Sr applicable to 1992 and older vehicles excluding diesel engines For 1993 and newer vehicles refer to the vehicle s service repair manual for procedures to check and adjust timing DO NOT ATTEMPT TO ADJUST TIMING ON THESE VEHICLES WITHOUT MANUFACTURER S SPECIFICATIONS AND PROCEDURES For 1992 and older vehicles the Scan Tool can be used in combination with a timing light to check ignition timing and the vehicle computers ability to advance ignition timing Check your vehicle thoroughly before performing any test See SP BEFORE YOU BEGIN on page 31 for details ALWAYS observe safety precautions whenever working on a vehicle Read and follow Safety Precautions on page 3 before performing this test m A timing light is required to perform this test m The vehicle must pass the KOEO Test page 73 before performing this test
54. D on vehicles or in more basic terms the computer that activates the vehicle s CHECK ENGINE light OBD1 was designed to monitor manufacturer specific systems on vehicles built from 1981 to 1995 Then came the development of OBD2 which is l i on all 1996 cars and light trucks sold in the U S Like its predecessor OBD2 was adopted as part of a government mandate to lower vehicle emissions But what makes OBD2 unique is its universal application for all late model cars and trucks domestic and import This sophisticated program in the vehicle s main computer system is designed to detect failures in a range of systems and can be accessed through a universal OBD2 port which is usually found under the dashboard For all OBD systems if a problem is found the computer turns on the CHECK ENGINE light to warn the driver and sets a Diagnostic Trouble Code DTC to identify where the problem occurred A special diagnostic tool such as the Scan Tool is required to retrieve these codes which consumers and professionals use as a starting point for repairs The Scan Tool provides the additional ability to retrieve enhanced DTCs from most Chrysler Jeep Ford Mazda GM Isuzu Honda Acura and Toyota Lexus vehicles as well as Anti Lock Brake System ABS DTCs Supplemental Restraint System SRS DTCs and vehicle information The types of enhanced data available depends on the vehicle make CarScan 1 You Can Do It EASY TO USE
55. D Support OBD OBD Requirements OBD Support OBD and OBD Requirements OBD2 OBD Support OBD1 OBD Requirements OBD Support No OBD OBD Requirements OBD Support EOBD OBD Requirements OBD Support EOBD and OBD Requirements OBD2 OBD Support EOBD and OBD Requirements OBD OBD Support EOBD OBD Requirements OBD and OBD2 OBD Support JOBD OBD Requirements OBD Support JOBD and OBD Requirements OBD2 OBD Support JOBD and OBD Requirements EOBD OBD Support JOBD OBD Requirements EOBD and OBD2 PTO Status On Off Power Take Off Status Rel TPS XXX X Relative Throttle Position Spark Adv deg XX Ignition Timing Advance 1 Cylinder STFT B1 XXX X Short Term Fuel Trim Bank 1 STFT B1 S1 XXX X Bank 1 Sensor 1 STFT B1 S2 XXX X Bank 1 Sensor 2 STFT B1 S3 XXX X Bank 1 Sensor 3 STFT B1 S4 XXX X Bank 1 Sensor 4 STFT B2 XXX X Short Term Fuel Trim Bank 2 STFT B2 S1 XXX X Bank 2 Sensor 1 STFT B2 S2 XXX X Bank 2 Sensor 2 STFT B2 S3 XXX X Bank 2 Sensor 3 STFT B2 S4 A XXX X Bank 2 Sensor 4 STFT B3 XXX X Short Term Fuel Trim Bank 3 STFT B4 XXX X Short Term Fuel Trim Bank 4 Time DTC Clr hrs XXXX XX Time since DTC Cleared min Time Since sec XXXX Time Since Engine Start Start TPS XXX X Absolute Throttle Position TPS B A XXX X Absolute Throttle Position B TPSC XXX X Absolute Throttle Position C Veh Speed km h XXX XXX Vehicle
56. DTCs When the Scan Tool s ERASE function is used to erase DTCs from the vehicle s on board computer manufacturer specific data where applicable is also erased If you plan to take the vehicle to a service center for repair DO NOT erase the codes from the vehicles computer If the codes are erased valuable information that might help the technician troubleshoot the problem will also be erased Erase DTCs from the computer s memory as follows 1 Perform steps 1 through 5 of the CODE RETRIEVAL PROCEDURE in page 96 2 When the DTC screen displays press and release the ERASE button A confirmation message shows on the Scan Tool s displays Erasing clears all diagnostic data from the vehicle s computer Erase m f you are sure you want to proceed press the ERASE button again to erase DTCs from the vehicle s computer The message Stop engine shows on the Scan Tools display If necessary turn off the vehicle s Erase engine but leave the ignition key Stop engine ON Press the ENTER lt Press 4 to continue button to continue m f you do not want to continue with the erase process press the LD M button to exit the erase function and return to the DTC display 3 If you chose to erase DTCs a status screen displays while the erase function is in process Erase Erase was successful Press LD M to exit m f the erase was successful a confirmation message shows on the Scan Tool s display pr
57. EASY TO VIEW EASY TO DEFINE Easy To Use Connect the Scan Tool to the vehicle s test connector Turn the ignition key On The Scan Tool will automatically link to the vehicle s computer Easy To View The Scan Tool retrieves stored codes Freeze Frame data and I M Readiness status Codes I M Readiness status and Freeze Frame data are displayed on the Scan Tool s display screen System status is indicated by LED indicators Easy To Define Read code definitions from the Scan Tool s display View Freeze Frame data View Live Data View Anti Lock Brake System ABS DTCs View Supplemental Restraint SRS DTCs Retrieve and view DTCs for OBD1 vehicles System Z peons n EErEE nina P0743 Generic Torque Converter Clutch Solenoid Circuit Electrical E poorsus o CIE f scos T Live Data 1 75 LTFT Bank 2 f Calc Load 8 5 Engine RPM Coolant F Fuel Sys 1 MAP PSI Spark Adv TPS Veh Speed MPH CarScan Safety Precautions SAFETY FIRST SAFETY FIRST To avoid personal injury instrument damage and or damage to your vehicle do not use the Scan Tool before reading this manual This manual describes common test procedures used by experienced service technicians Many test procedures require precautions to avoid accidents that can result in personal injury and or damage to your vehicle or test equipment
58. ENTER lt 4 button was pressed Record Live Data Manual Trigger mode Press LD M to exit Use the UP and DOWN w buttons as necessary to select the desired trigger point then press the ENTER button m A One moment please message shows on the display When the Scan Tool is ready to record Live Data the Record Live Data screen displays 7 Put the engine in the operating condition where the problem manifests itself m f necessary drive the vehicle until you reach the vehicle speed at which the problem occurs 8 When the problem occurs press and release the ENTER lt 4 button CarScan Record Live Data Manual Trigger mode Ready to record Press to record Live Data Record Live Data One moment please Recording Frame 3 Press LD M to exit 115 Live Data Mode LIVE DATA PLAYBACK m All three LEDs will blink for three seconds to indicate that Live Data is being recorded and a One moment please message shows on the display along with the number of the frame being recorded m When recording is complete a confirmation screen displays asking if you would like to view the recorded data Use the UP gm and DOWN ww J sec2a ioc u buttons as necessary to select Yes or Ke to view now No as desired then press the ENTER Press 4 button e If Yes is selected the Scan Tool enters Playback mode from SP which you can vie
59. IED VEHICLE THIS VEHICLE CONFORMS TO U S EPA AND STATE a MANUFACTURER OF CALIFORNIA REGULATIONS APPLICABLE TO 1999 MODEL YEAR NEW TLEV PASSENGER CARS OB D Il REFER TO SERVICE MANUAL FOR ADDITIONAL INFORMATION TUNE UP CONDITIONS NORMAL OPERATING ENGINE TEMPERATURE Cc ERTI FI E D ACCESSORIES OFF COOLING FAN OFF TRANSMISSION IN NEUTRAL EXHAUST EMISSIONS STANDARDS STANDARD CATEGORY CERTIFICATION TLEV IN USE TLEV INTERMEDIATE ween CATALYST lll GAP 1 1MM 2 Government Regulations require that all OBD2 compliant vehicles must have a 0 4 5 3 4 5 6l7ig common sixteen pin Data Link He alslslef is Connector DLC Some 1994 and 1995 vehicles have 16 pin connectors but are E not OBD2 compliant Only those vehicles with a Vehicle Emissions Control Label stating OBD II Certified are OBD2 compliant Data Link Connector DLC Location The 16 pin DLC is usually located under the instrument panel dash within 12 inches 300 mm of center of the panel on the drivers side of most vehicles It should be easily accessible and visible from a 3 kneeling position outside the AN BEHIND CENTER a ASHTRAY vehicle with the door open LEFTCORNER OF DASH OF DASH CarScan 5 About the Scan Tool BATTERY REPLACEMENT On some Asian and European vehicles the DLC is located behind the ashtray the ashtray must be removed to access it or
60. ING CAPTURING LIVE DATA You can record and save several frames of Live Data information for each PID supported by the vehicle in the Scan Tool s memory Recorded Live Data can serve as valuable information to help you in the troubleshooting of vehicle problems There are two ways that the Scan Tool can record Live Data m Record by DTC Trigger m Record by Manual Trigger Se If the POWER LINK Gi button is pressed at any time while in Live Data mode any stored recorded Live Data will be cleared erased from the Scan Tool s memory Record by DTC Trigger This function automatically records captures Live Data information when a DTC sets and saves it in the Scan Tool s memory The recorded captured data can be a valuable troubleshooting aid particularly if you are experiencing a fault that is causing a DTC to set 1 While linked to the vehicle start the engine then press and release the LD M button Main Menu 2 5 m The Main Menu displays Select and press View Live Data Live Data Menu View Enhanced DTCs View ABS DTCs View SRS DTCs 112 CarScan Live Data Mode RECORDING CAPTURING LIVE DATA 2 Use the UP and DOWN Ww buttons as necessary to highlight Live Data Menu then press the ENTER lt 4 button m The Live Data menu displays Use the UP g and DOWN w buttons as necessary to highlight Record Live Data then press the ENTER button Use the
61. INN VA CarScan Part Number 3 1 703 Owner s Manual Table of Contents a INTRODUCTION WHAT IS OBD YOU CAN DO IT SAFETY PRECAUTIONS SAFETY FIRST isni asirna ABOUT THE SCAN TOOL VEHICLES COVERED BATTERY REPLACEMENT SCAN TOOL CONTROLS CONTROLS AND INDICATORS DISPLAY FUNCTIONS ONBOARD DIAGNOSTICS COMPUTER ENGINE CONTROLS DIAGNOSTIC TROUBLE CODES DTCs OBD2 MONITORS PREPARATION FOR TESTING PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET BEFORE YOU BEGIN VEHICLE SERVICE MANUALS USING THE SCAN TOOL CODE RETRIEVAL PROCEDURE THE ENHANCED MAIN MENU VIEWING ENHANCED DTCs VIEWING ABS DTCs VIEWING SRS DTCs ERASING DIAGNOSTI I M READINESS TESTING ABOUT REPAIRSOLUTIONS CHRYSLER JEEP OBD1 SYSTEMS CHRYSLER JEEP OBD1 SYSTEMS VEHICLES COVERED oe INSTRUMENT PANEL INDICATOR LIGHTS DATA LINK CONNECTOR DLC CODE RETRIEVAL PROCEDURE FORD OBD1 SYSTEMS FORD COMPUTER SYSTEM OVERVIEW VEHICLES COVERED TEST CONNECTORS CONNECTING THE SCAN TOOL DIAGNOSTIC TROUBLE CODES DTCs CODE RETRIEVAL PROCEDURES ADDITIONAL TESTS FOR EEC IV SYSTEMS GM OBD1 SYSTEMS YOUR VEHICLE S COMPUTER SYSTEM VEHICLES COVERED ABOUT THE SCAN TO DATA LINK CONNECTOR MALFUNCTION INDICATOR LIGHT MIL DIAGNOSTIC TROUBLE CODES DTC s CODE RETRIEVAL PROCEDURE HONDA OBD1 SYSTEMS YOUR VEHICLE S COMPUTER SYSTEM VEHICLES COVERED ABOUT THE SCAN TOOL DATA LINK CONNECTOR DLC MALFUNCTION INDICATOR LIGHT
62. L 3E SOHC 1 DLC 2 Cars Eng Eng DOHC DLC Year Model Size Code SOHC Other Type 1989 Cressida 3 0L 7M GE DOHC 2 1990 Cressida 3 0L 7M GE DOHC 2 1991 Cressida 3 0L 7M GE DOHC 2 1992 Cressida 3 0L 7M GE DOHC 2 1993 Camry 3 0L 3VZ FE DOHC 2 102 CarScan Toyota Lexus OBD1 Systems VEHICLES COVERED Eng Eng DOHC DLC Year Model Size Code SOHC Other Type 1993 Supra 3 0L 2JZ GTE DOHC Turbo 2 1993 Supra 3 0L 2JZ GE DOHC 2 1994 Camry 3 0L 3VZ FE DOHC 2 1994 Supra 3 0L 2JZ GTE DOHC Turbo 2 1994 Supra 3 0L 2JZ GE DOHC 2 1995 Supra 3 0L 2JZ GTE DOHC Turbo 2 1995 Supra 3 0L 2JZ GE DOHC 2 1992 SC 300 3 0L 2JZ GE DOHC 2 1990 ES 250 2 5L 2VZ FE DOHC 2 1991 ES 250 2 5L 2VZ FE DOHC 2 1992 ES 300 3 0L 3VZ FE DOHC 2 1992 SC 400 4 0L 1UZ FE DOHC 2 1991 LS 400 4 0L 1UZ FE DOHC 2 1992 LS 400 4 0L 1UZ FE DOHC 2 1993 SC 400 4 0L 1UZ FE DOHC 2 1994 SC 400 4 0L 1UZ FE DOHC 2 1994 SC 300 3 0L 2JZ GE DOHC 2 1993 SC 400 4 0L 1UZ FE DOHC 2 1994 GS 300 3 0L 2JZ GE DOHC 2 1993 SC 300 3 0L 2JZ GE DOHC 2 DLC 1 Light Trucks Eng Eng DOHC DLC Year Model Size Code SOHC Other Type 1992 Previa 2 4L 2TZ FE DOHC 1 1993 Previa 2 4L 2TZ FE DOHC 1 1994 Previa 2 4L 2TZ FE DOHC 1 1994 T100 3 0L 3VZ FE SOHC 1 1995 4 Runner 2 4L 22R E SOHC 1 1995 4 Runner 3 0L 3VZ FE SOHC 1 1995 P
63. MIL DIAGNOSTIC TROUBLE CODES DTC s CODE RETRIEVAL PROCEDURE VIEWING DTCs IN THE SCAN TOO ERASING DTCs TOYOTA LEXUS OBD1 SYSTEMS ON BOARD VEHICLE DIAGNOSTICS OBD1 VEHICLES COVERED DATA LINK CONNECTOR DLC INSTRUMENT PANEL MALFUNCTION INDICATOR LIGHTS MIL DIAGNOSTIC TROUBLE CODES CODE RETRIEVAL PROCEDURE ERASING DTCS ERASING DTCs OBD SYSTEMS LIVE DATA MODE VIEWING LIVE DATA CUSTOMIZING LIVE DATA PIDs RECORDING CAPTURING LIVE DAT LIVE DATA PLAYBACK ADDITIONAL TESTS SPECIAL TEST MENU VIEWING VEHICLE INFORMATION ADJUSTMENTS AND SETTINGS GENERIC GLOBAL OBD2 PID LIST VEHICLE APPLICATIONS MAKES COV DOMESTIC MAKES ASIAN MAKES OPTIONAL UPGRADE EUROPEAN MAKES OPTIONAL UPGRADE VEHICLE APPLICATIONS MAKES COVERED SRS DOMESTIC MAKES ASIAN MAKES OPT EUROPEAN MAKES OPTIONAL UPGRADE GLOSSARY GLOSSARY OF TERMS AND ABBREVIATIONS WARRANTY AND SERVICING LIMITED ONE YEAR WARRANTY SERVICE PROCEDURES W no on CarScan Introduction WHAT IS OBD WHAT IS OBD The Scan Tool is designed to work on all OBD2 compliant vehicles All 1996 and newer vehicles cars light trucks and SUVs sold in the United States are OBD2 compliant One of the most exciting improvements in the automobile industry was the addition of on board diagnostics OB
64. MPUTER SYSTEM VEHICLES COVERED YOUR VEHICLE S COMPUTER SYSTEM Today s vehicles are equipped with computer self testing abilities that can locate problems in your vehicle and store them as Diagnostic Trouble Codes DTC s in the vehicle s onboard computer The Scan Tool allows you access to the computer s memory and retrieves the DTC s VEHICLES COVERED This Scan Tool may be used to retrieve engine service codes from most General Motors GM domestic cars and trucks EXCEPT Geo Nova Saturn and Sprint Model Year Make Model 1982 93 Buick Century Electra Electra Wagon Estate Wagon Le Sabre Le Sabre Wagon Park Avenue Reatta Regal Grand National Riviera Roadmaster Skyhawk Skylark Somerset Cadillac De Ville El Dorado Fleetwood Seville Chevrolet Beretta Camaro Caprice Cavalier Celebrity Chevette Citation Corsica Corvette El Camino Impala Lumina Monte Carlo Oldsmobile Achieva Calais Custom Cruiser Cutlass Calais Ciera Cutlass Cruiser Cruiser Wagon Cutlass Supreme Supreme Classic Delta 88 Eighty eight Firenze Ninety eight Omega Toronado Touring Sedan Trofeo Pontiac 6000 6000 STE Bonneville Fiero Firebird Grand Am Grand Prix J 2000 Lemans J Parisienne Phoenix Safari Safari Wagon Sunbird T 1000 Trucks and All one ton capacity or less with gas engines Vans 1994 Buick Roadmaster 5 7 liter Chevrolet Camaro 3 4 liter 5 7 liter Capric
65. NNECTORS on page 70 for connector location Some DLCs have a plastic cover that must be removed before connecting the Scan Tool cable connector 2 Connect the Scan Tool cable with the Ford Connector Cable Adaptor attached to the Scan Tool then connect the adaptor to the vehicle s DLC Press the POWER LINK OaD button to turn the Scan Tool ON then press the ENTER lt 4 button to continue m The Ford OBD1 menu displays Use the gy and W buttons as h Review DTCs necessary to make menu selections KOEO Test Timing Check KOER Test 3 From the Ford OBD1 menu highlight Wiggle Cylinder Balance Test Test then press the ENTER lt button amaa 86 CarScan Ford OBD1 Systems ADDITIONAL TESTS FOR EEC IV SYSTEMS WIGGLE TEST 4 The message Warm up engine to operating temperature displays Start and warm up engine to normal operating Wiggle Test temperature Press the ENTER lt 4 button Warm up engine to to continue operating temperature Press 4 to continue 5 When prompted turn ignition key OFF and wait for the on screen prompt If you wish to exit the KOEO test at this time press the LD M button Wiggle Test Turn ignition key off wait for 6 Select the desired Wiggle Test from the for on screen prompt menu displayed m To perform the KOEO Wiggle Test Highlight KOEO Wiggle Test Press LD M to exit Turn ignition ON DO NOT START THE ENGINE Press the ENTER button
66. NUALS VEHICLE SERVICE MANUALS Always refer to the manufacturers service manual for your vehicle before performing any test or repair procedures Contact your local car dealership auto parts store or bookstore for availability of these manuals The following companies publish valuable repair manuals m Haynes Publications 861 Lawrence Drive Newbury Park California 91320 Phone 800 442 9637 Web www haynes com m Mitchell 1 14145 Danielson Street Poway California 92064 Phone 888 724 6742 Web www m1products com Motor Publications 5600 Crooks Road Suite 200 Troy Michigan 48098 Phone 800 426 6867 Web www motor com FACTORY SOURCES Ford GM Chrysler Honda Isuzu Hyundai and Subaru Service Manuals Helm Inc 14310 Hamilton Avenue Highland Park Michigan 48203 Phone 800 782 4356 Web www helminc com 32 CarScan Using the Scan Tool CODE RETRIEVAL PROCEDURE CODE RETRIEVAL PROCEDURE Retrieving and using Diagnostic Trouble Codes DTCs for troubleshooting vehicle operation is only one part of an overall diagnostic strategy Never replace a part based only on the DTC definition Each DTC has a set of testing procedures instructions and flow charts that must be followed to confirm the location of the problem This information is found in the vehicle s service manual Always refer to the vehicle s service manual for detailed testing instructions Check your vehicle thoroughly before performing
67. RILINK C B button to the button continue Refer to DISPLAY FUNCTIONS on page 8 for a description of LCD display elements m A visible icon indicates that the Scan Tool is being powered through the vehicle s DLC connector m The upper right hand corner of the display shows the number of the code currently being displayed the total number of codes retrieved P1456 pond 20 01 Permanent 7 z EVAP Emission Control m The Diagnostic Trouble Code DTC System Leak Detected and related code definition are shown uel Tank System in the lower section of the LCD display I M MONITOR STATUS icons SE are not displayed when viewing enhanced DTCs aD Se In the case of long code definitions or when viewing Freeze Frame data a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the and W butions as necessary to view the additional information m The Scan Tool will display a code only if codes are present in the vehicle s Aaienhancediaree are computer memory If no codes are peace caput nE present a No Enhanced DTC s are presently stored in the vehicle s computer is displayed Press the LD M button to return to the Honda Acura Enhanced menu Press LD M to exit If more than one code was retrieved press the DTC FF button as necessary to display additio
68. S Vehicle operating conditions are constantly changing The computer continuously makes adjustments or corrections especially to the air fuel mixture and spark timing to keep all the engine systems operating within the preset reference values On Board Diagnostics First Generation OBD1 With the exception of some 1994 and 1995 vehicles most vehicles from 1982 to 1995 are equipped with some type of first generation On Board Diagnostics Beginning in 1988 California s Air Resources Board CARB and later the Environmental Protection Agency EPA required vehicle manufacturers to include a self diagnostic program in their on board computers The program would be capable of identifying emissions related faults in a system The first generation of Onboard Diagnostics came to be known as OBD1 OBD1 is a set of self testing and diagnostic instructions programmed into the vehicle s on board computer The programs are specifically designed to detect failures in the sensors actuators switches and wiring of the various vehicle emissions related systems If the computer detects a failure in any of these components or systems it lights an indicator on the dashboard to alert the driver The indicator lights only when an emissions related problem is detected The computer also assigns a numeric code for each specific problem that it detects and stores these codes in its memory for later retrieval These codes can be retrieved fro
69. Scan Tool s LCD display Receiving codes Relay and Cylinder X Weak If any weak cylinders are identified Press 4 to continue consult the vehicle s service repair manual to perform further testing and or repairs Solenoid Test Output State Check The Output State Check is a special program in the vehicle s computer that allows the user to energize turn ON and de energize turn OFF on command most of the actuators relays and solenoids that are controlled by the computer Use this test to check computer output voltages and relay solenoid operation sy The fuel injectors and fuel pump are not energized during this test Check your vehicle thoroughly before performing any test See BEFORE YOU BEGIN on page 31 for details ALWAYS observe safety precautions whenever working on a vehicle Read and follow Safety Precautions on page 3 before performing this test CarScan 83 Ford OBD1 Systems ADDITIONAL TESTS FOR EEC IV SYSTEMS RELAY AND SOLENOID TEST 1 Locate the vehicle s Data Link Connector DLC See TEST CONNECTORS on page 70 for connector location Some DLCS have a plastic cover that must be removed before connecting the Scan Tool cable connector 2 Connect the Scan Tool cable with the Ford Connector Cable Adaptor attached to the Scan Tool then connect the adaptor to the vehicle s DLC Press the POWERILINK B button to turn the Scan Tool ON then press the ENTER q 4 button to conti
70. Started Started Last Week m QO Started Last Month a Other LIST ANY REPAIRS DONE IN THE PAST SIX MONTHS PROBLEMS STARTING 4 No symptoms a Will not crank ENGINE QUITS OR STALLS 4 No symptoms 2 Right after starting 2 When shifting into gear a During steady speed driving IDLING CONDITIONS 4 No symptoms a Is too slow at all times Q Is too fast RUNNING CONDITIONS No symptoms Runs rough Lacks power Bucks and jerks Poor fuel economy Hesitates or stumbles on accelerations DOG UOO D CarScan Cranks but will not start Starts but takes a long time Right after vehicle comes to a stop While idling During acceleration When parking Is sometimes too fast or too slow Is rough or uneven Fluctuates up and down Backfires Misfires or cuts out Engine knocks pings or rattles Surges Dieseling or run on 29 Preparation for Testing PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET AUTOMATIC TRANSMISSION PROBLEMS if applicable 30 4 No symptoms Shifts too early or too late 4 Changes gear incorrectly PROBLEM OCCURS a Morning Q Afternoon a Cold a Warm Short less than 2 miles 2 10 miles Long more than 10 miles Stop and go While turning While braking At gear engagement With A C operating Oocooodooco DRIVING HABITS a Mostly city driving a Highway 2 Park vehicle inside Q Park vehicle outside GASOLINE USED
71. TIC TROUBLE CODES DTC s Diagnostic Trouble Codes DTC s are used to identify systems or components that are malfunctioning CODE RETRIEVAL PROCEDURE Retrieving and using Diagnostic Trouble Codes DTCs for troubleshooting vehicle operation is only one part of an overall diagnostic strategy Never replace a part based only on the DTC definition Each DTC has a set of testing procedures instructions and flow charts that must be followed to confirm the location of the problem This information is found in the vehicle s service manual Always refer to the vehicle s service manual for detailed testing instructions Check your vehicle thoroughly before performing Sr any test See BEFORE YOU BEGIN on page 31 for details ALWAYS observe safety precautions whenever working on a vehicle See Safety Precautions on page 3 for more information 1 Locate the vehicle s Data Link Connector DLC See DATA LINK CONNECTOR DLC on page 95 for connector location Some DLCs have a plastic cover that must be removed before connecting the Scan Tool s cable connector 2 Connect the Scan Tool cable with the Honda Connector Cable Adaptor attached to the Scan Tool then connect the adaptor to the vehicles DLC Press the POWERILINK lt a button to turn the Scan Tool ON then press the ENTER button to continue m The Honda OBD1 menu displays Use the gy and W buttons as CY necessary to make menu selections eee 3 Highlig
72. TS FOR EEC IV SYSTEMS RELAY AND SOLENOID TEST 9 After the Cylinder Balance Test is completed the test results are sent to the Scan Tool 10 If all cylinders are contributing equally the computer determines that power distribution is normal and a System Pass message will display e Cylinder Balance Test The computer compares the power Receiving codes contribution that each cylinder makes 0 nder X Weak to engine operation Press to continue Cylinder Balance Test System Pass If the computer detects a problem with a cylinder s when performing the initial Cylinder Balance Test it needs to repeat the test two more times to properly determine which cylinder or Press ED Miorextt cylinders are malfunctioning If this is the case the Scan Tool will display the Lightly press the accelerator half way and release message again instead of the System Pass Proceed to step 11 11 If a cylinder is not contributing at the same level as the other cylinders the computer prompts you to repeat the test two more times by displaying the Lightly press the accelerator half way and release message again Each time the message displays perform the 12 After the repeat Cylinder Balance tests have completed the computer will identify which cylinder or cylinders are not contributing equally and will send this information to the procedures as instructed Cylinder Balance Test
73. UP and DOWN w buttons as necessary to highlight Record by DTC trigger then press the ENTER lt 4 button m f DTCs are presently stored in the vehicles computer an advisory message displays Use the UP and DOWN w buttons as necessary to highlight Erase DTCs then press the ENTER lt 4 button to erase DTCs from the vehicle s computer When the Erase process is complete the Record by DTC Trigger screen displays When the Record by DTC Trigger screen displays select the desired trigger point as follows eZ Live Data Menu Select and press Custom Live Data Record Live Data Playback Live Data Record Live Data Menu Record by DTC trigger Record by manual trigger Please clear DTCs before recording by DTC trigger Erase DTCs Press LD M to exit The Scan Tool is capable of recording approximately 100 frames of Live Data Record by DTC trigger lets you select the point in time at which you wish the Scan Tool to begin recording Live Data You can set the trigger point to record the 100 frames of data before an event when the DTC sets after the event or in the middle 50 frames before and 50 frames after the event m Beginning records approximately 100 frames of Live Data after the DTC sets m Middle records approximately 50 frames of Live Data before and 50 frames after the DTC sets m End records approximately 100 frames of Live Data before t
74. XX XXX Engine Coolant Temp F ECU Volts V XX XXX Control Module Voltage EGR Error XXX X EGR Error Eng RPM min XXXXX Engine RPM EQ Ratio X XXX Commanded Equivalence Ratio EQ Ratio 11 X XXX Bank 1 Sensor 1 Equivalence Ratio EQ Ratio 12 X XXX Bank 1 Sensor 2 Equivalence Ratio EQ Ratio 13 X XXX Bank 1 Sensor 3 Equivalence Ratio EQ Ratio 14 X XXX Bank 1 Sensor 4 Equivalence Ratio CarScan 129 Generic Global OBD2 PID List Tool Display Unit Value PID Description EQ Ratio 21 X XXX Bank 2 Sensor 1 Equivalence Ratio EQ Ratio 22 X XXX Bank 2 Sensor 2 Equivalence Ratio EQ Ratio 23 X XXX Bank 2 Sensor 3 Equivalence Ratio EQ Ratio 24 X XXX Bank 2 Sensor 4 Equivalence Ratio EVAP Press Pa XXXX XX_ Evap System Vapor Pressure in IXX XXX H20 FP Vac kPa XXXX XXX Fuel Rail Pressure relative PSI IXXX X toVacuum Fuel Level XXX X Fuel Level Input Fuel Press kPa XXX Fuel Rail Pressure PSI XX X Fuel Press kPa XXXXX Fuel Rail Pressure PSI IXXXX X Fuel Sys 1 OL Fuel System 1 Status Fuel Sys 1 CL Fuel System 1 Status Fuel Sys 1 OL Drive Fuel System 1 Status Fuel Sys 1 z OL Fault Fuel System 1 Status Fuel Sys 1 CL Fault Fuel System 1 Status Fuel Sys 2 OL Fuel System 2 Status Fuel Sys 2 CL Fuel System 2 Status Fuel Sys 2 OL Drive Fuel System 2 Status Fuel Sys 2 OL F
75. acturer used their own code numbers code definitions and language to describe the same faults m To expand the operation of the Malfunction Indicator Lamp MIL m To standardize communication procedures and protocols between the diagnostic equipment Scan Tools Code Readers etc and the vehicle s on board computer OBD2 Terminology The following terms and their definitions are related to OBD2 systems Read and reference this list as needed to aid in the understanding of OBD2 systems 14 CarScan Onboard Diagnostics COMPUTER ENGINE CONTROLS Powertrain Control Module PCM The PCM is the OBD2 accepted term for the vehicle s on board computer In addition to controlling the engine management and emissions systems the PCM also participates in controlling the powertrain transmission operation Most PCMs also have the ability to communicate with other computers on the vehicle ABS ride control body etc Monitor Monitors are diagnostic routines programmed into the PCM The PCM utilizes these programs to run diagnostic tests and to monitor operation of the vehicle s emissions related components or systems to ensure they are operating correctly and within the vehicle s manufacturer specifications Currently up to fifteen Monitors are used in OBD2 systems Additional Monitors will be added as the OBD2 system is further developed Se Not all vehicles support all fifteen Monitors m Enab
76. ady for an Emissions Test Smog Check Using the I M Readiness Monitor Status to Confirm a Repair The I M Readiness Monitor Status function can be used after repair of a fault has been performed to confirm that the repair has been performed correctly and or to check for Monitor Run Status Use the following procedure to determine I M Readiness Monitor Status 1 Using retrieved Diagnostic Trouble Codes DTCs and code definitions as a guide and following manufacturer s repair procedures repair the fault or faults as instructed 2 After the fault or faults have been repaired connect the Scan Tool to the vehicle s DLC and erase the code or codes from the vehicle s computer memory m See page 53 for procedures for ERASING DIAGNOSTIC TROUBLE CODES DTCs from the vehicle s on board computer m Write the codes down on a piece of paper for reference before erasing 3 After the erase procedure is performed most of the Monitor icons on the Scan Tool s display will be flashing Leave the Scan Tool connected to the vehicle and perform a Trip Drive Cycle for each flashing Monitor Misfire Fuel and Comprehensive Component Monitors run SF continuously and their icons will always be on solid even after the erase function is performed CarScan 59 Using the Scan Tool ABOUT REPAIRSOLUTIONS m Each DTC is associated with a specific Monitor Consult the vehicle s service manual to identify the Monitor or Mon
77. agnosing and repairing today s vehicles RepairSolutions allows you to view save and email the diagnostic data retrieved from a vehicle s on board computer s using an Innova Pro Scan Tool RepairSolutions also provides access to an extensive knowledge database including Verified Fixes Find the most likely fixes reported and verified by ASE Technicians for the DTCs retrieved Step By Step Repair Instructions View available repair instructions to properly perform the fix How To Repair Videos Watch repair video tutorials for valuable repair tips Technical Service Bulletins Research known problems reported by vehicle manufacturers Safety Recalls Research known safety concerns applicable to a vehicle And much more Please visit pro innova com for additional information 60 CarScan Using the Scan Tool ABOUT REPAIRSOLUTIONS Hardware Requirements m Innova Pro Scan Tool m Mini USB Cable included with tool Minimum System Operating Requirements Windows PC System Windows XP Windows Vista or Windows 7 128 MD Ram Pentium IIl Processor One available USB port Internet Connection Internet Explorer 5 5 Netscape 7 0 or Firefox 1 0 browser Accessing RepairSolutions 1 Link your Scan Tool to a vehicle and retrieve diagnostic data 2 Visit pro innova com download and install the latest RepairSolutions software for your Scan Tool Select the Support tab then choose
78. at identifies the circuit component or system area where the problem was found OBD2 diagnostic trouble codes are made up of five characters m The ist character is a letter B C P or U It identifies the main system where the fault occurred Body Chassis Powertrain or Network m The 2nd character is a numeric digit 0 thru 3 It identifies the type of code Generic or Manufacturer Specific Generic DTCs are codes that are used by all vehicle manu facturers The standards for generic DTCs as well as their definitions are set by the Society of Automotive Engineers SAE 16 CarScan Onboard Diagnostics DIAGNOSTIC TROUBLE CODES DTCs the vehicle manufacturers The Federal Government does not require vehicle manufacturers to go beyond the standardized generic DTCs in order to comply with the new OBD2 emissions standards However manufacturers are free to expand beyond the standardized codes to make their systems easier to diagnose S Manufacturer Specific DTCs are codes that are controlled by m The 3rd character is a letter or a numeric digit 0 thru 9 A thru F It identifies the specific system or sub system where the problem is located m The 4th and 5th characters are letters or numeric digits 0 thru 9 A thru F They identify the section of the system that is malfunctioning OBD2 DTC EXAMPLE P0201 Injector Circuit Malfunction Cylinder 1 B Body C Chassis P Powertrain U Netw
79. ault Fuel System 2 Status Fuel Sys 2 CL Fault Fuel System 2 Status IAT C XXX XXX Intake Air Temperature F LOAD Value XXX X Absolute Load Value LTFT B1 XXX X Long Term Fuel Trim Bank 1 LTFT B2 XXX X Long Term Fuel Trim Bank 2 LTFT B3 XXX X Long Term Fuel Trim Bank 3 LTFT B4 XXX X Long Term Fuel Trim Bank 4 MAF g s l XXX XX Air Flow Rate from Mass Air Flow b min IXXXX X Sensor MAP kPa XXX Intake Manifold Absolute Pressure PSI XX X MIL On Time hrs XXXX XX Engine Run Time while MIL ON min Monitor Status ICONS on Monitor Status this Driving Cycle Display 02S B1 S1 V X XXX Bank 1 Sensor 1 O2S B1 S1 mA X XXX Bank 1 Sensor 1 O2S Current mA 130 CarScan Generic Global OBD2 PID List Tool Display Unit Value PID Description 02S B1 S1 V V X XXX Bank 1 Sensor 1 02S Voltage O2S B1 S2 V X XXX Bank 1 Sensor 2 O2S B1 S2 mA X XXX Bank 1 Sensor 2 O2S Current mA 02S B1 S2 V V X XXX Bank 1 Sensor 2 02S Voltage O2S B1 S3 V X XXX Bank 1 Sensor 3 O2S B1 S3 mA X XXX Bank 1 Sensor 3 O2S Current mA 02S B1 S3 V V X XXX Bank 1 Sensor 3 02S Voltage O2S B1 S4 V X XXX Bank 1 Sensor 4 O2S B1 S4 mA X XXX Bank 1 Sensor 4 O2S Current mA O2S B1 S4 V V X XXX Bank 1 Sensor 4 02S Voltage O2S B2 S1 V X XXX Bank 2 Sensor 1 O2S B2 S1 mA X XXX Bank 2 Sensor 1 O2S Current mA O2S B2 S1 V V X XXX Bank 2
80. ble Taurus 3 0L V 6 1 U Y EFI SEFI SFI Probe Sable Taurus Tempo 3 0L V 6 SHO Topaz VIN 1 Taurus models are Flexible Fuel 3 8L V 6 3 4 C CFI EFI SFI Capri Continental Cougar R LTD Marquis Mustang Sable T Bird Taurus 4 6L V 8 W V SEFI Crown Victoria Grand Marquis Mark VII Town Car 5 0L V 8 F M SEFI Capri Continental Cougar ET Crown Victoria Grand Marquis D 4 Mark VII Mustang Mustang Cobra T Bird Town Car 994 1 9L l 4 J SFI Escort Topaz Tracer EEC IV 2 0L l 4 A SFI Probe 3 0L V 6 1 U Y SFI Sable Taurus Tempo VIN 1 Taurus models are Flexible Fuel 3 8L V 6 4 SFI Continental Cougar Sable 3 8L V 6 SC R Taurus T Bird 4 6L V 8 W V SFI Crown Victoria Grand Marquis Mark VIII Town Car 5 0L V 8 T D SFI Mustang Mustang Cobra 995 1 9L l 4 J SFI Escort Tracer EEC IV 2 0L l 4 A 3 SFI Contour Mystique Probe 2 5L V 6 L SFI Contour Mystique 3 0L V 6 1 U SFI Sable Taurus VIN 1 Taurus 3 0L V 6 SHO Y models are Flexible Fuel 3 8L V 6 4 SFI Cougar Sable Taurus T Bird 3 8L V 6 SC R 68 CarScan Ford OBD1 Systems VEHICLES COVERED TRUCKS 8th Fuel Systems VIN Carburetor Computer Engine Digit Model Application Special Notes System 1995 Cont 4 6L V8 DOHC Vv SFI Mark VIII EEC IV 5 0L V 8 HO T SFI Mustang 5 0L V 8 SHP D NOTES Carburetor Model Carburetor model numbers are usually stamped on top of the carburetor or on a metal tab attached to the carbur
81. caused the history DTC to set does not recur within a predetermined length of time usually within 40 80 ignition key start cycles the computer will automatically erase the related fault code from its memory CODE RETRIEVAL PROCEDURE Retrieving and using Diagnostic Trouble Codes DTCs for troubleshooting vehicle operation is only one part of an overall diagnostic strategy Never replace a part based only on the DTC definition Each DTC has a set of testing procedures instructions and flow charts that must be followed to confirm the location of the problem This information is found in the vehicle s service manual Always refer to the vehicle s service manual for detailed testing instructions Check your vehicle thoroughly before performing any test See BEFORE YOU BEGIN on page 31 for details ALWAYS observe safety precautions whenever working on a vehicle See Safety Precautions on page 3 for more information 1 Locate the vehicle s Data Link Connector DLC See DATA LINK CONNECTOR DLC on page 90 for connector location Some DLCs have a plastic cover that must be removed before connecting the Scan Tool s cable connector 2 Connect the Scan Tool cable with the GM Connector Cable Adaptor attached to the Scan Tool then connect the adaptor to the vehicle s DLC Press the POWER LINK AD button to turn the Scan Tool ON then press the ENTER lt 41 button to continue m The GM OBD1 menu displays GM OBD1 3 To vi
82. cle s battery 1987 90 This system is called a Single Module Engine Controller SMEC This system still uses two separate circuit boards Logic Module and Power Module However both circuit boards are located in a common enclosure 1989 95 This system is called a Single Board Engine Controller SBEC On this system the Logic Module and Power Module circuit boards are integrated on a single circuit board 1993 97 Beginning in 1993 the computer was renamed the Powertrain Control Module PCM In addition to controlling the engine management system and emission system the computer also takes an active role in controlling powertrain transmission system operation Se Unless otherwise specified all references to computer within this manual also apply to Logic Module Power Module SMEC SBEC or PCM Jeep On Board Computer Systems 62 1993 95 In 1993 Jeep on board computer systems fuel injected vehicles only were converted to the Chrysler on board computer systems All 1993 through 1995 fuel injected Jeep and Chrysler vehicles are equipped with similar on board computer systems CarScan Chrysler Jeep OBD1 Systems VEHICLES COVERED INSTRUMENT PANEL INDICATOR LIGHTS DLC VEHICLES COVERED This section covers Chrysler fuel injected vehicles from 1989 1995 Model Type Year Model Passenger 1989 1995 Chrysler Dodge and Plymouth Fuel Cars Injected Models Only Ex
83. cluding Laser Talon 1 8L 2 0L ALL YEARS 1990 Monaco Premier 1993 1995 Intrepid LHS Concorde and Vision 1995 Avenger Stealth ALL YEARS and Cirrus 2 5L ALL YEARS Light Truck 1989 1995 Chrysler Dodge and Plymouth Fuel and Vans Injected Models Only 1992 1995 Diesel Models Jeep 1993 1995 Jeep Fuel Injected Models Only INSTRUMENT PANEL INDICATOR LIGHTS Your vehicle s instrument panel has either a Power Loss Check Engine or Malfunction Indicator Lamp depending on the year of the vehicle These lights are designed to warn you of component malfunctions POWER CHECK MALFUNCTION Loss ENGINE Ce Sr If your instrument panel indicator lights do not come on when you turn on the ignition please refer to your vehicle s service manual You may have problems in the car s circuitry It is recommended that you fix these problems before retrieving DTC s from your vehicle s computer DATA LINK CONNECTOR DLC Chrysler vehicles are equipped with special test connectors that make it possible to connect specialized testing equipment that communicates with the vehicle s on board computer Chryslers vehicle test connectors are usually dark in color BLACK or GREY and are located under the hood CarScan 63 Chrysler Jeep OBD1 Systems CODE RETRIEVAL PROCEDURE CODE RETRIEVAL PROCEDURE Retrieving and using Diagnostic Trouble Codes DTCs for troubleshooting
84. d by the designation 1 or B1 a sensor for cylinder bank 2 is identified as 2 or B2 Bank One indicates the side of the engine where cylinder E number one is located V type engines Bank Two is opposite of Bank One m Y or YY These characters identity the location of the O2 sensor in relation to the exhaust system catalyst An O2 sensor located upstream of the catalyst is identified by the designation 1 or S1 a sensor lo cated downstream of the Catalytic Converter is identified as 2 or S2 For example O2S12 or O2SB1S2 is the designation for the downstream O2 sensor for cylinder bank 1 The Scan Tool does not perform O2 sensor tests but retrieves Se results from the most recently performed O2 sensor tests from the on board computer s memory You may retrieve O2 sensor test results for only one test of one sensor at any given time 1 From the Special Test Menu use the UP A and DOWN buttons as necessary to highlight O2 Sensor Test galsc and wesc then press the ENTER lt 41 button O2 Sensor Test Non Continuous Test 2 A One moment please message EVAP Leak Test displays while the request is sent to the vehicle s on board computer m The Select Sensor screen displays The screen shows all O2 sensors 02 Sensor Test applicable to the vehicle under test Select and press ks g If O2 sensor tests are not supported 0258192 by the vehicle under test a
85. des present PASS code code 11 or 111 to the Scan Tool m f no Continuous Memory codes are present in the vehicle s computer memory the Scan Tool will display a DTC 11140 PASS code code 11 or 111 System PASS no CM fault codes present Most Ford EEC IV vehicle computers up to 1991 use a two digit code system From 1991 to 1995 most use a three digit code system Contact Technical Support 10 If more than one code was retrieved press DTC FF button as necessary to display additional codes one at a time Sr In the case of long code definitions a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the and Ww buttons as necessary to view the additional information 11 Disconnect the Scan Tool from the vehicle and turn the ignition key OFF 12 To prolong battery life the Scan Tool automatically shuts Off after approximately three minutes of no button activity The DTCs retrieved will remain in the Scan Tool s memory and may be viewed at any time If the Scan Tool s batteries are removed or if the Scan Tool is re linked to a vehicle to retrieve codes any prior codes in its memory are automatically cleared Do not proceed to the ignition timing check procedure or the KOER test until a PASS code code 11 or 111 for KOEO test is obtained CarScan 75 Ford OBD1 Systems CODE RETRIEVAL PRO
86. desired then press the ENTER button 4 When you have finished viewing the recorded Live Data exit the Live Data Playback mode using the appropriate procedure shown below m lf the Scan Tool is connected to a vehicle use the DOWN wr button to scroll to the end of the PID list highlight Exit Playback then press the ENTER lt 4 button m If the Scan Tool is not connected to a vehicle press the DTC FF button CarScan 117 Additional Tests SPECIAL TEST MENU In addition to retrieving Diagnostic Trouble Codes DTCs and viewing Live Data you can use the Scan Tool to perform additional diagnostic tests to view diagnostic and vehicle information stored in your vehicle s on board computer and to configure the Scan Tool for your particular needs SPECIAL TEST MENU Additional tests are accessed through the Special Test Menu The following functions are available from the Special Test Menu Special Test Menu Select and press m O2 Sensor Test Retrieves and displays Non Continuous Test O2 sensor monitor test results from your EVAP Leak Test vehicle s on board computer m Non Continuous Test Retrieves and displays test results for emission related powertrain components and systems that are not continuously monitored Press LD M to exit EVAP Leak Test Performs a leak test for Saa An MNI ara the vehicle s EVAP system Eikes 1 Start the engine a oar Tool Settings 2 Pres
87. dvisory message shows on the LCD display Verify that the Scan Tool is properly connected to the vehicle s DLC and that the ignition is on then repeat steps 2 and 3 above Erasing ABS DTCs does not fix the problem s that caused the code s to be set If proper repairs to correct the problem s that caused the code s to be set are not made the code s will appear again as soon as the vehicle is driven long enough for the problem to recur VIEWING SRS DTCs Refer to Vehicle Applications Makes Covered SRS on page 135 for vehicle makes covered Please visit pro innova com for e a complete list of vehicles covered Reading SRS DTCs 1 VIEWING SRS DTCs Erase was successful relink the module Erase has failed Verify the connection at the DLC Verify that the ignition switch is ON Press the The screen shown when View SRS DTCs is selected from the Enhanced Main Menu and the appropriate vehicle manufacturer is selected if prompted depends on the vehicle make For GM lsuzu vehicles ONLY The GM Isuzu ABS Menu displays Use the UP and DOWN w buttons as necessary to highlight the desired option Current DTC or History DTC then press the ENTER lt q 4 button Proceed to step 2 For Chrysler Jeep Ford Mazda Honda Acura and Toyota Lexus vehicles Proceed to step 2 A One moment please message displays while the Scan Tool retrieves the selected DTCs If the Scan Tool
88. e 5 7 liter Caprice 5 7 liter Cavalier 3 1 liter Lumina 3 1 liter Pontiac Firebird 3 4 liter 5 7 liter Sunbird 2 0 liter 3 1 liter Trucks and All one ton capacity or less with gas engines Vans 1995 Chevrolet Caprice 4 3 liter Trucks and All one ton capacity or less with gas engines Vans EXCEPT S T Series vehicles CarScan 89 GM OBD1 Systems ABOUT THE SCAN TOOL DLC MIL DTCs In addition to the list on the previous page this Scan Tool Sr IS ALSO COMPATIBLE with OBD1 GM models that are equipped with Climate Control Computers For 1994 and 1995 vehicles only the models listed above are Sr compatible with the Scan Tool ABOUT THE SCAN TOOL DATA LINK CONNECTOR DLC The Scan Tool is a device that connects to your vehicle s Data Link Connector to retrieve any Diagnostic Trouble Codes that are stored in the vehicle s on board computer Your vehicle test connector is known as the Assembly Line Data Link ALDL connector Assembly Line Communication Link ALCL Connector or the Data Link Connector DLC The GM DLC connector contains 12 pins and is usually black in color On most GM vehicles the connector is found under the left side of the dashboard MALFUNCTION INDICATOR LIGHT MIL Your vehicle s instrument panel has a Malfunction Indicator Light MIL also called the Check Engine or Service Engine soon light The MIL is an indicator to warn the vehicle operator of a problem in
89. e erased valuable information that might help the technician troubleshoot the problem will also be erased Erase DTC s from the computer s memory as follows 1 Connect the Scan Tool to the vehicle s DLC Press the ENTER button to continue 2 Turn the ignition ON DO NOT start the engine For FORD systems only first perform step 3 below then turn ignition ON and press the ENTER button to continue 3 Press and release the ERASE button A confirmation message shows on the LCD display If you are sure you want to proceed press the ERASE button again to erase DTCs from the vehicle s computer Erase Erasing clears all diagnostic If you do not want to continue with the 2ta rem the vehicle s erase process press the LD M button Are you suret Yes Press 4227 to exit the erase function No Press LD M to exit 4 If you chose to erase DTCs a status screen displays while the erase function is in progress Erase Erase was successful m f the erase was successful a confirmation message shows on the Scan Tools LCD display press the ENTER lt 4 button to exit Due to the differences in computer SF systems the Scan Tool can be used to erase codes for some vehicles while others require codes to be erased manually If the To erase DTC s consult the vehicle s service 12 8ase DICs consult the repair manual screen displays you remove he conect os must consult t
90. ehicle s engine type This number is the 8th digit of the VIN Vehicle Identification Number Consult your vehicle s repair manual for details Application Table Definitions EFI Electronic Fuel Injection FBC Feedback Carburetor MFI Multiport Fuel Injection OHC Overhead Cam SC Super Charged SEFI Sequential Electronic Fuel Injection SFI Sequential Fuel Injection TEST CONNECTORS Ford vehicles are equipped with special test connectors that make it possible to connect specialized testing equipment that communicates with the vehicle s onboard computer Ford s vehicle test connectors are usually dark in color BLACK or GREY Sometimes they have a plastic cover over them or are labeled EEC Test The connectors can be found in the following general ae locations in the engine compart ment EEC IV TEST CONNECTOR 70 CarScan Ford OBD1 Systems CONNECTING THE SCAN TOOL DIAGNOSTIC TROUBLE CODES DTCs Near the front corner right or left Near the fender well right or left Near the fire wall right or left CONNECTING THE SCAN TOOL The Scan Tool s Ford Connector Cable Adaptor is designed to match the vehicle s computer DLC When properly connected the vehicle s DLC should match the pre molded guides around the adaptor Make sure the adaptor and the vehicle s DLC mate properly before applying force Forcing the adaptor onto the DLC improperly may result in damage to the adaptor and or
91. ent please test is in progress message shows on the Scan Output State Cheek Tool s LCD display One moment please test is in progress Se As soon as the ignition is turned on the vehicle s computer enters the Self Test mode Clicking sounds will be heard coming from the engine Press LD M to exit This is normal 84 CarScan Ford OBD1 Systems ADDITIONAL TESTS FOR EEC IV SYSTEMS RELAY AND SOLENOID TEST WARNING On some vehicles equipped with an Electric CY Cooling Fan the computer activates the cooling fan to check its operation To avoid injury keep hands or any part of your body a safe distance from engine during the test m f the Scan Tool fails to link to the vehi cle s computer a Vehicle is not respon ding message shows on the Scan Tool s LCD display Do the following Output State Check EA A The vehicle is not Verify the ignition is ON responding Check DLC cable connections Check the cable connections at the Verify ignition is on and Scan Tool and at the vehicle s DLC press Turn the ignition OFF wait 10 seconds then turn back ON to reset the computer BE SURE to perform the added procedures in step 6 if appropriate for your vehicle BEFORE turning the ignition ON Press the ENTER lt 4 button to continue m f the Scan Tool cannot link to the vehicle s computer the message Contact Technical Support displays Contact Technical Su
92. er of codes retrieved The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the LCD display Se I M MONITOR STATUS icons are not displayed when viewing enhanced DTCs a P1 250 Chrysler Jeep Vacuum reservoir control circuit open In the case of long code definitions or when viewing Freeze Frame data a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the and W butions as necessary to view the additional information The Scan Tool will display a code only if codes are present in the vehicle s computer memory If no codes are present a No Enhanced DTC s are presently stored in the vehicle s computer is displayed Press the LD M button to return to the Chrysler Enhanced menu CarScan No Enhanced DTCs are presently stored in the vehicle s computer Press LD M to exit 41 Using the Scan Tool VIEWING ENHANCED DTCs If more than one code was retrieved press the DTC FF button as necessary to display additional codes one at a time m Whenever the Scroll function is used to view additional codes the Scan Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWERILINK lt x button again When the last retrieved DTC has been displayed and the DTC FF but ton
93. es the associated Monitor has run and completed its testing A blinking Monitor icon indicates the associated Monitor has not run and completed its testing m The upper right hand corner of the display shows the number of the code 5 wacusue p TI currently being displayed the total ESSES panno E number of codes retrieved and po743 00 whether or not the displayed code Torque Converter Clutch Solenoid Circuit Electrical commanded the MIL on If the code being displayed is a PENDING code the PENDING icon is shown If k code being displayed is PERMANENT code the PERMANENT icon is shown The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the display SS In the case of long code definitions a small arrow is shown in the upper lower right hand corner of the Scan Tool display area to indicate the presence of additional information Use the and w buttons as necessary to view the additional information If a definition for the currently displayed code is not available Sr an advisory message shows on the Scan Tool s display 9 Read and interpret Diagnostic Trouble Codes system condition using the display and the green yellow and red LEDs CarScan 35 Using the Scan Tool CODE RETRIEVAL PROCEDURE 36 The green yellow and red LEDs are used with the display as visual aids to make it easier to determine engine system conditions Green LED
94. ess LD M to exit Toyota Lexus Enhanced Select and press Current DTCs Historical DTCs Readiness DTCs Press LD M to exit Toyota Lexus Enhanced Unable to establish a link with the vehicle Verify the ignition is ON and press Verify the ignition is ON then press the POWERILINK gt button to continue 2 To read the display Refer to DISPLAY FUNCTIONS on page 8 for a description of LCD display elements m A visible icon indicates that the Scan Tool is being powered through the vehicle s DLC connector m The upper right hand corner of the display shows the number of the code z iL currently being displayed the total Toyota Lexus number of codes retrieved P0100 Current ass or Volume Air Flow m The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the LCD display I M MONITOR STATUS icons are not displayed when Se viewing enhanced DTCs Circuit CarScan 47 Using the Scan Tool VIEWING ABS DTCs 3 4 In the case of long code definitions or when viewing Freeze Frame data a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the and w buttons as necessary to view the additional information m The Scan Tool will display a code only if codes are present in the vehicle s computer memory If no code
95. ess the LD M button to exit m f the erase was not successful an advisory message shows on the Scan Tool s display Verify that the Scan Tool Erase is properly connected to the vehicle s Erase has failed DLC and that the ignition is ON If the z nec DLC cable erase process still does not complete Make sure the ignition is turn the ignition OFF wait 10 seconds then turn back ON and repeat step 2 CarScan 99 Honda OBD1 Systems ERASING DTCs m f the erase process fails for three successive tries the Contact Technical Support screen displays Press the LD M button to return to the Honda OBD1 Menu Contact Technical Support for further assistance Erasing DTCs does not fix the problem s that caused the code s to be set If proper repairs to correct the Contact Technical Support Press LD M to exit problem s that caused the code s to be set are not made the code s will appear again and the Check Engine light will illuminate as soon as the problem that cause the DTC to set manifests itself 100 CarScan Toyota Lexus OBD1 Systems ON BOARD VEHICLE DIAGNOSTICS VEHICLES COVERED ON BOARD VEHICLE DIAGNOSTICS OBD1 m Beginning in 1988 California s Air Resources Board CARB and later the Federal Government s Environmental Protection Agency EPA required vehicle manufacturers to include a self diagnostic program capable of identifying an emissions related fault via t
96. etor Consult your vehicle s repair manual for proper identification VIN Number The VIN number s used in this column identify the vehicle s engine type This number is the 8th digit of the VIN Vehicle Identification Number Consult your vehicle s repair manual for details Application Table Definitions CFI Central Fuel Injection DOHC Dual Overhead Cam EFI Electronic Fuel Injection FBC Feedback Carburetor HSC High Swirl Combustion MFI Multiport Fuel Injection OHC Overhead Cam SC Super Charged SEFI Sequential Electronic Fuel Injection SFI Sequential Fuel Injection SHO Super High Output TRUCKS VANS Ford Computer System Tool Application Table The following table lists the year and model of all the trucks and vans that are covered by the Scan Tool 8th Fuel Systems VIN Carburetor Computer Engine Digit Model Application Special Notes System 1983 2 8L V 6 S FBC 2150A Bronco Il and Ranger Pickup EEC IV 1984 2 8L V 6 S FBC 2150A Bronco Il Ranger Pickup EEC IV 4 9L l 6 Y FBC YFA Bronco E and F Series 5 0L V 8 F FBC 2150A eae tie 8500 Ib GVW or 5 8L V 8 G FBC 2150A 25S 00 1985 1990 2 3L l 4 OHC A EFI Aerostar Bronco II Ranger EEC IV 2 9L V 6 T EFI excluding Diesel 2 8L V 6 S FBC 2150A Bronco E and F Series 4 9L l 6 Y 9 FBC YFA Trucks Vans 8500 Ib GVW or EFI less onl
97. ew codes in the Scan Tool s memory Select New Vehicle m Use the UP and DOWN w Current Selection buttons as necessary to highlight Review DTCs then press the ENTER lt 4 button CarScan 91 GM OBD1 Systems CODE RETRIEVAL PROCEDURE 4 To retrieve codes from the vehicle s computer Use the gy and w buttons as necessary to make menu Cy selections m To retrieve DTCs from the vehicle selection currently in the Scan Tools memory GM OBD1 From the GM OBD1 menu highlight Review DTCs Current Selection turn ignition key ON DO NOT start engine and YR 1386 VINSLE press the ENTER lt 4 button Proceed to step 5 to continue m To retrieve DTCs from a new vehicle From the GM OBD1 menu highlight Select Vehicle Year Select New Vehicle and press the MEH 1982 1983 1984 ENTER lt lt button the Select E fade dade Vehicle Year menu displays GM OBD1 Highlight the desired year then press the ENTER lt 4 button the Enter the 8th digit of VIN menu displays Highlight the 8th digit of the vehicle s VIN then press the ENTER lt 4 button If the Enter 4th VIN Digit screen GMOBD1 displays not applicable to all Eiter aA digitar VIN vehicles highlight the 4th digit of the vehicle s VIN then press the ENTER 4 button Sr If the Truck screen displays not applicable to all vehicles highlight Truck Yes or No as app
98. fails to link to the vehicle s computer a Linking Failed message shows on the Scan Tool s display CarScan GM Isuzu SRS Select and press Current DTC History DTC Press LD M to exit Ford Mazda SRS Unable to establish a link with the vehicle Verify the ignition is ON and press button 51 Using the Scan Tool VIEWING SRS DTCs Verify the ignition is ON then press the POWERILINK Gm button to continue This vehicle does not support SRS m f the vehicle does not support SRS communication communication an advisory message shows on the Scan Tool s display Press the LD M button to return to the Enhanced Main Menu Press LD M to exit 3 To read the display Refer to DISPLAY FUNCTIONS on page 8 for a description of LCD display elements m A visible icon indicates that the Scan Tool is being powered through the vehicle s DLC connector m A visible ap icon indicates that the Scan Tool is linked to communicating with the vehicle s computer m The upper right hand corner of the display shows the number of the code currently being displayed the total number of codes retrieved AE Enh m The Diagnostic Trouble Code DTC psor Circuit Shorted to and related code definition are shown in the lower section of the LCD display I M MONITOR STATUS icons are not displayed when viewing SRS DTCs In the case of long code definitions a small arrow is
99. following for each Monitor A Monitor Type how often does the Monitor run Continuous or Once per trip B Number of trips needed with a fault present to set a pending DTC C Number of consecutive trips needed with a fault present to command the MIL On and store a DTC D Number of trips needed with no faults present to erase a Pending DTC E Number and type of trips or drive cycles needed with no faults present to turn off the MIL F Number of warm up periods needed to erase the DTC from the computer s memory after the MIL is turned off CarScan Onboard Diagnostics OBD2 MONITORS Name of Monitor A B c D E F Comprehensive Component Monitor Continuous 1 2 1 3 40 Misfire Monitor 3 similar Type 1 and 3 Continuous 1 2 1 conditions 80 Misfire Monitor 3 similar Type 2 Continuous 1 conditions 80 Fuel System Monitor Continuous 1 1or2 1 3 similar 80 conditions Catalytic Converter Once per Monitor trip 1 2 l Strips ii Oxygen Sensor Once per h Monitor trip i 2 f Strips gan Oxygen Sensor Once per Heater Monitor trip 1 2 l 3 trips 40 Exhaust Gas Recirculation EGR OncePer 4 2 1 3 trips 40 5 trip Monitor Evaporative Olied ber Emissions Controls oP 1 2 1 3 trips 40 5 trip Monitor Secondary Air Once per F System AIR Monitor rip 1 2 l Strips 40 NMHC Monitor Once per 1 2 1 3 trips 40 trip NOx Adsorber Once per x Monitor rip 1 2 1 3 trips
100. gq and DOWN w buttons as necessary to select Yes or No as desired then press the ENTER lt 4 button If Yes is selected the Scan Tool enters Playback mode from SP which you can view a frame by frame playback of recorded Live Data see LIVE DATA PLAYBACK on page 116 for details If No is selected the display returns to the Main Menu 9 You can exit the Record Live Data Mode at any time by pressing and holding the LD M button until the Main Menu displays If desired you can transfer the recorded Live Data information SE to a personal computer with the use of optional software see instructions included with the software for more information Record by Manual Trigger This option lets you select the precise time at which the Live Data recording will occur Record by Manual Trigger can be a very valuable diagnostic tool when troubleshooting intermittent problems that do not meet the requirements for a DTC to set Even though a DTC is not present the intermittent problems will sometimes manifest themselves briefly for a few fractions of a second and or only at certain vehicle speeds or vehicle operating conditions 1 While linked to the vehicle start the engine then press and release the LD M button m The Main Menu displays Main Menu 2 5 Select and press 2 Use the UP and DOWN w buttons ighli i View Enhanced DTC as necessary to highlight Live Data View Fhhaneed DICE Men
101. he vehicles On Board Computers some manufacturers used OBD before it was required The first generation of Onboard Diagnostics came to be known as OBD I OBD is a set of self testing or self diagnosing instructions that are programmed into the vehicle s on board computer m The program is specifically designed to detect failures in the sensors actuators switches and wiring of the various vehicle emissions related systems fuel injection system ignition system EGR system catalytic converter etc If the computer detects a failure in any one of these components or systems it alerts the driver by illuminating the Check Engine light on the dash m The computer also assigns a numeric code OBD systems utilized a 2 or 3 digit code for each specific problem that it detects and stores these codes in it s memory for later retrieval The codes can be retrieved from the computer s memory with the use of a device called a Diagnostic Tool or a Scan Tool With the exception of some 1994 and 1995 vehicles most vehicles from about 1982 to 1995 are equipped with OBD I systems VEHICLES COVERED The following tables identify the Toyota and Lexus OBD1 vehicles that are covered by the Scan Tool DLC 1 Cars Eng Eng DOHC DLC Year Model Size Code SOHC Other Type 1995 Camry Coupe 2 2L 5S FE DOHC 1 1992 Camry Sedan 2 2L 5S FE DOHC 1992 Camry Sedan 3 0L 2VZ FE DOHC 1993 Camry Sedan 3 0L 3VZ FE DOHC 1993 Cam
102. he DTC sets 6 Use the UP and DOWN w buttons as necessary to select the desired trigger point then press the ENTER lt 4 button m A One moment please message shows on the display When the Scan Tool is ready to record Live Data the Record Live Data screen displays Put the engine in the operating condition that causes the DTC to set CarScan Record Live Data DTC Trigger mode Press LD M to exit Record Live Data DTC Trigger mode Ready to record Waiting for DTC Press LD M to exit 113 Live Data Mode RECORDING CAPTURING LIVE DATA m f necessary drive the vehicle until you reach the vehicle speed at which the problem occurs 8 When the Scan Tool detects a fault that causes a DTC to set it automatically records and saves approximately 20 5 i frames of Live Data information in its Recording Frama 3 memory according to your trigger selection for each PID supported by the vehicle m All three LEDs will blink for three Press LD M to exit seconds to indicate that Live Data is being recorded and a One moment please message shows on the Record Live Data display along with the number of the Record Live Data frame being recorded Live Data record was successful Would you m When recording is complete a like to view now confirmation screen displays asking if Select and press you would like to view the recorded data Use the UP
103. he vehicle s service procedures repair manual for procedures to erase DTCs Press LD M to exit Erase Press LD M to exit 108 CarScan Erasing DTCs OBD1 SYSTEMS m f the erase was not successful an advisory message shows on the LCD display Verify that the Scan Tool is Erase properly connected to the vehicle s Erase has failed DLC and that the ignition is ON If the on eso prs cable erase process still does not complete Ma sure the ignition is turn the ignition OFF wait 10 seconds to continue then turn back ON and repeat steps 2 and 3 FORD systems will not display an erase was not successful message If the One moment please erase in progress message on the display does NOT change after 3 minutes it indicates that the erase function has failed Check the DLC connections and make sure the ignition key is ON Perform the ERASE function again Erasing DTCs does not fix the problem s that caused the Sr code s to be set If proper repairs to correct the problem that caused the code s to be set are not made the code s will appear again and the check engine light will illuminate as soon as the problem that cause the DTC to set manifests itself CarScan 109 Live Data Mode VIEWING LIVE DATA The Scan Tool is a special diagnostic tool that communicates with the vehicle s computer The Scan Tool lets you view and or capture record real time Live
104. ht Read DTCs and press the ENTER lt 4 button m An instructional message shows on the Scan Tool s display 96 CarScan Honda OBD1 Systems CODE RETRIEVAL PROCEDURE m Turn the Ignition key ON m Make sure the throttle is fully closed m Make sure the emergency brake is applied m Place the transmission in neutral m Turn all vehicle accessories OFF m Press the ENTER lt 4 button to continue When the Scan Tool is in the process of retrieving codes a One moment please message shows on the Scan Tool s display m f the Scan Tool fails to link to the vehicle s computer a Vehicle is not responding message shows on the Scan Tool s display Do the following Verify the ignition is ON Check the cable connections at the Scan Tool and at the vehicle s DLC Turn the ignition OFF wait 10 12 seconds then turn back ON to reset the computer Press the ENTER lt q 4 button and repeat steps 3 and 4 as necessary m f the Scan Tool fails to link with the vehicle for three successive tries the Contact Technical Support screen displays Press the LD M button to return to the Chrysler OBD1 Menu Contact Technical Support for further assistance If the Scan Tool was able to link to the vehicle successfully a Code retrieval was successful message shows temporarily on the Scan Tool s display followed by any retrieved DTCs m The Scan Tool will display a code o
105. ia Air Resources Board CARB and the Environmental Protection Agency EPA set new regulations and air pollution standards to deal with the problem To further complicate matters the energy crisis of the early 1970s caused a sharp increase in fuel prices over a short period As a result vehicle manufacturers were not only required to comply with the new emissions standards they also had to make their vehicles more fuel efficient Most vehicles were required to meet a miles per gallon MPG standard set by the U S Federal Government Precise fuel delivery and spark timing are needed to reduce vehicle emissions Mechanical engine controls in use at the time such as ignition points mechanical spark advance and the carburetor responded too slowly to driving conditions to properly control fuel delivery and spark timing This made it difficult for vehicle manufacturers to meet the new standards A new Engine Control System had to be designed and integrated with the engine controls to meet the stricter standards The new system had to m Respond instantly to supply the proper mixture of air and fuel for any driving condition idle cruising low speed driving high speed driving etc Calculate instantly the best time to ignite the air fuel mixture for maximum engine efficiency m Perform both these tasks without affecting vehicle performance or fuel economy Vehicle Computer Control Systems can perform millions of calculations
106. ickup 2 4L 22R E SOHC 1 1995 Pickup 3 0L 3VZ FE SOHC 1 1995 Previa 2 4L 2TZ FE DOHC 1 CarScan 103 Toyota Lexus OBD1 Systems DATA LINK CONNECTOR DLC MIL DATA LINK CONNECTOR DLC Toyota vehicles are equipped with special Test Connectors that make it possible to connect specialized testing equipment that communicates with the vehicle s onboard computer This Scan Tool is designed for use with two types of Toyota DLC connectors DLC Number 1 and DLC Number 2 as described below The Scan Tool s Toyota Connector Cable Adaptor is designed SP to match the vehicle s DLC Make sure the adaptor mates properly before applying any force when making the connection Applying force to the connector when not mated properly may cause damage to the connectors 1 Type 1 connector is also known as Data Link Connector Number 1 The type 1 DLC connector is a rectangular connector and is usually black or gray in color The connector is located under the hood engine compartment in the following general locations m Front corner right or left m Front corner right or left m Fender well right or left m Fire wall right or left It has a cover labeled DIAGNOSTIC DIAGNOSIS or CHECK CONN Use the square head of the Toyota Connector Cable Adaptor on vehicles with this type of connector 2 Type 2 connector is also known as Data Link Connector DLC Number 2 The type 2 DLC connector is a round
107. icle s service manual for OBD2 Drive Cycle procedures Do not confuse a Trip Drive Cycle with an OBD2 Drive Cycle A SP Trip Drive Cycle provides the Enabling Criteria for one specific Monitor to run and complete its diagnostic testing An OBD2 Drive Cycle must meet the Enabling Criteria for all Monitors on a particular vehicle to run and complete their diagnostic testing m Warm up Cycle Vehicle operation after an engine off period where engine temperature rises at least 40 F 22 C from its temperature before starting and reaches at least 160 F 70 C The PCM uses warm up cycles as a counter to automatically erase a specific code and related data from its memory When no faults related to the original problem are detected within a specified number of warm up cycles the code is erased automatically DIAGNOSTIC TROUBLE CODES DTCs Diagnostic Trouble Codes DTCs are meant to guide you to the proper Diagnostic Trouble service procedure in the vehicle s Codes DTCs are service manual DO NOT replace parts codes that identify a based only on DTCs without first specific problem area consulting the vehicle s service manual for proper testing procedures for that particular system circuit or component DTCs are alphanumeric codes that are used to identify a problem that is present in any of the systems that are monitored by the on board computer PCM Each trouble code has an assigned message th
108. icles The message Warm up engine to operating temperature displays Start and warm up engine to normal operating temperature Press the ENTER lt lt button to continue When prompted turn off all vehicle accessories turn ignition key OFF and wait for the on screen prompt If you wish to exit the Timing Check procedure at this time press the LD M button When instructed by the message on the Scan Tool s display start the engine and press the ENTER lt 4 button m A One moment please preparation for test is in progress message shows temporarily on the Scan Tool s LCD display followed by the message Perform Timing Check within two minutes When Perform Timing Check within 2 minutes displays perform the Timing Check as follows m The vehicle s computer is programmed to advance ignition timing 20 3 above the vehicle s base timing value and to freeze this setting for two minutes from the time the Perform Timing Check within 2 minutes message displays This allows the user to check the computer s ability to advance ignition timing CarScan Timing Check Warm up engine to operating temperature press to continue Timing Check One moment please preparation for test is in progress Press LD M to exit Timing Check Perform Timing Check within 2 minutes Press LD M to exit 77 Ford OBD1 Systems CODE RETRIEVAL PROCEDURES KOER TEST m Within
109. ight Read ABS DTCs then press the ENTER lt 4 button Proceed to step 2 Press LD M to exit CarScan Using the Scan Tool For GM Isuzu vehicles ONLY The GM Isuzu ABS Menu displays Use the UP g and DOWN w butions as necessary to highlight the desired option Current DTC or History DTC then press the ENTER lt 4 button Proceed to step 2 For Ford Mazda Honda Acura and Toyota Lexus vehicles Proceed to step 2 2 A One moment please message displays while the Scan Tool retrieves the selected DTCs If the Scan Tool fails to link to the vehicle s computer a Linking Failed message shows on the Scan Tool s display Verify the ignition is ON then press the POWERILINK lt i button to continue If the vehicle does not support ABS communication an advisory message shows on the Scan Tool s display Press the LD M button to return to the Enhanced Main Menu 3 To read the display Refer to DISPLAY FUNCTIONS on page 8 for a description of LCD display elements VIEWING ABS DTCs GM Isuzu ABS Select and press 4 Current DTC History DTC Press LD M to exit Chrysler Jeep ABS Unable to establish a link with the vehicle Verify the ignition is ON and press This vehicle does not support ABS communication Press LD M to exit A visible icon indicates that the Scan Tool is being powered through the vehicle s DLC connec
110. ignal for air fuel mixture corrections In order for the computer to enter closed loop operation the oxygen sensor must reach a temperature of at least 600 F The oxygen sensor heater helps the oxygen sensor reach and maintain its minimum operating temperature 600 F more quickly to bring the vehicle into closed loop operation as soon as possible The Oxygen Sensor Heater Monitor is supported by spark ignition vehicles only The Oxygen Sensor Heater Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory D Oxygen Sensor Monitor The Oxygen Sensor monitors how much oxygen is in the vehicle s exhaust It generates a varying voltage of up to one volt based on how much oxygen is in the exhaust gas and sends the signal to the computer The computer uses this signal to make corrections to the air fuel mixture If the exhaust gas has a large amount of oxygen a lean air fuel mixture the oxygen sensor generates a low voltage signal If the exhaust gas has very little oxygen a rich mixture condition the oxygen sensor generates a high voltage signal A 450mV signal indicates the most efficient and least polluting air fuel ratio of 14 7 parts of a
111. ilable an advisory message shows on the Scan Tool s display m f you entered a Manufacturer Specific DTC DTCs that start with P1 and some P3 The Select Manufacturer screen displays Use the UP and DOWN w buttons as necessary to highlight the appropriate manufacturer then press the ENTER lt 4 button to display the correct DTC for your vehicle If a definition for the DTC you Se entered is not available an advisory message shows on the Scan Tool s display 4 If you wish to view definitions for additional DTCs press the ENTER lt 4 button to return to the Enter DTC screen and repeat steps 2 and 3 Select Manufacturer Alfa Romeo MW Audi Chrysler Ford Geo GM Honda Hyundai Infiniti Isuzu Jaguar Kia Land Rover More P1274 The DTC definition is not available please visit pro innova com 5 When all desired DTCs have been viewed press the LD M button to exit the DTC Library Viewing the Firmware Version 1 Use the UP g and DOWN buttons as necessary to highlight Firmware Version in the Tool Settings Menu then press the ENTER lt 4 button m The Firmware Version screen displays m The screen shows the Scan Tool s current firmware version 2 Press the ENTER lt 4 button to return to the Tool Settings Menu Selecting the Display Language 1 Use the UP_ and DOWN w buttons as necessary to highlight Select Language
112. in the Tool Settings Menu then press the ENTER lt 4 button CarScan Tool Settings Menu Select and press 4 Adjust Brightness Audible Tone Display Backlight DTC Libra Firmware Version V1 00 00 Press LD M to exit Tool Settings Menu Select and press Adjust Brightness Audible Tone Display Backlight DTC Library Firmware Version Unit of Measurement Press LD M to exit 127 Additional Tests ADJUSTMENTS AND SETTINGS m The Select Language screen displays m The currently selected display Language is highlighted 2 Press the UP or DOWN w button as necessary to highlight the desired display language When the desired display language is highlighted press the ENTER button to save your changes and return to the Tool Settings Menu shown in the selected display language Setting the Unit of Measurement Language Select and press Espa ol Francais Press LD M to exit Tool Settings Menu 1 Use the UP amp and DOWN w buttons Select and press as necessary to highlight Unit of Adjust Brightness Measurement in the Tool Settings Menu Bee ec eight then press the ENTER lt 4 button eae ien 2 Press the UP or DOWN w button aT as necessary to highlight the desired Unit of Measurement 3 When the desired Unit of Measurement Select snd prs a3 value is selected press the ENTER q4 button to save y
113. ine is running The Continuous Monitors are Comprehensive Component Monitor CCM Misfire Monitor Fuel System Monitor CarScan 19 Onboard Diagnostics OBD2 MONITORS Non Continuous Monitors The other twelve Monitors are non continuous Monitors Non continuous Monitors perform and complete their testing once per trip The non continuous Monitors are D Oxygen Sensor Monitor Oxygen Sensor Heater Monitor D Catalyst Monitor Heated Catalyst Monitor EGR System Monitor EVAP System Monitor Secondary Air System Monitor The following Monitors became standard beginning in 2010 The majority of vehicles produced before this time will not support these Monitors NMHC Monitor NOx Adsorber Monitor Boost Pressure System Monitor Exhaust Gas Sensor Monitor PM Filter Monitor The following provides a brief explanation of the function of each Monitor Comprehensive Component Monitor CCM This Monitor continuously checks all inputs and outputs from sensors actuators switches and other devices that provide a signal to the computer The Monitor checks for shorts opens out of range value functionality and rationality Rationality Each input signal is compared against all other SP inputs and against information in the computer s memory to see if it makes sense under the current operating conditions Example The signal from the throttle position sensor indicates
114. inent test information messages FREEZE FRAME icon Indicates that there is Freeze Frame data from Priority Code Code 1 stored in the vehicle s computer memory PERMANENT icon Indicates the currently displayed DTC is a Permanent code PENDING icon Indicates the currently displayed DTC is a Pending code MIL icon Indicates the status of the Malfunction Indicator Lamp MIL The MIL icon is visible only when a DTC has commanded the MIL on the vehicle s dashboard to light Code Number Sequence The Scan Tool assigns a sequence number to each DTC that is present in the computers memory starting with 01 This number indicates which code is currently displayed Code number 01 is always the highest priority code and the one for which Freeze Frame data has been stored If 01 is a Pending code there may or may not be Freeze Frame data stored in memory Code Enumerator Indicates the total number of codes retrieved from the vehicle s computer CarScan Onboard Diagnostics COMPUTER ENGINE CONTROLS COMPUTER ENGINE CONTROLS The Introduction of Electronic Engine Controls Electronic Computer Control Systems make it possible for vehicle manufacturers to comply with the tougher emissions and fuel efficiency standards mandated by State and Federal Governments As a result of increased air pollution smog in large cities such as Los Angeles the Californ
115. information that might help the technician troubleshoot the problem will be erased 1 With the Scan Tool in SRS Mode see Reading SRS DTCs on page 51 for details press the ERASE SQ button 2 A confirmation message shows on the LCD display m f you are sure you want to proceed press the ERASE button to erase the SRS DTCs from the vehicle s computer Erasing clears all SRS DTCs Are you sure NO Press LD M to exit m f you do not want to continue with the erase process press the LD M button to exit the erase mode and return to the Enhanced Main Menu 3 If you chose to erase SRS DTCs a progress screen displays while the erase function is in progress m f the erase was successful a confirmation message shows on the LCD display Press the POWER LINK S amp B button to re link the Scan Tool to the vehicle m f the erase was not successful an advisory message shows on the LCD display Verify that the Scan Tool is properly connected to the vehicle s DLC and that the ignition is on then repeat steps 2 and 3 above Press the relink the module Erase has failed Verify the connection at the DLC Verify that the ignition switch is ON Press the Erasing SRS DTCs does not fix the problem s that caused the CN code s to be set If proper repairs to correct the problem s that caused the code s to be set are not made the code s will appear again as soo
116. ir to one part of fuel The oxygen sensor must reach a temperature of at least 600 650 F and the engine must reach normal operating temperature for the computer to enter into closed loop operation The oxygen sensor only functions when the computer is in closed loop A properly operating oxygen sensor reacts quickly to any change in oxygen content in the CarScan 23 Onboard Diagnostics OBD2 MONITORS exhaust stream A faulty oxygen sensor reacts slowly or its voltage signal is weak or missing The Oxygen Sensor Monitor is supported by spark ignition vehicles only The Oxygen Sensor Monitor is a Two Trip monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory Secondary Air System Monitor When a cold engine is first started it runs in open loop mode During open loop operation the engine usually runs rich A vehicle running rich wastes fuel and creates increased emissions such as carbon monoxide and some hydrocarbons A Secondary Air System injects air into the exhaust stream to aid catalytic converter operation 1 It supplies the catalytic converter with the oxygen it needs to oxidize the carbon monoxide and hydrocarbons left over from the combustion process d
117. ition ON DO NOT start the engine Press the ENTER lt 4 button to continue m The Scan Tool will begin the code retrieval process Toyota OBD1 Connect DLC cable to the vehicle Turn ignition ON Throttle closed Put transmission in park or neutral Turn off accessories Press to continue A CarScan 7 sy Toyota Lexus OBD1 Systems CODE RETRIEVAL PROCEDURE When the Scan Tool is in the process of retrieving codes a One moment please message shows on the Scan Tool s LCD display m f the Scan Tool fails to link to the vehicle s computer a Vehicle is not responding message shows on the Scan Tools LCD display Do the following Verify the ignition is ON Check the cable connections at the Scan Tool and at the vehicle s DLC Turn the ignition OFF wait 10 12 seconds then turn back ON to reset the computer Toyota OBD1 One moment please code retrieval is in progress Toyota OBD1 The vehicle is not responding Check DLC cable connections Verify ignition is on and press Press the ENTER lt q 4 button and repeat steps 3 and 4 as necessary If the Scan Tool was able to link to the vehicle successfully a Code retrieval was successful message shows temporarily on the Scan Tool s LCD display followed by any retrieved DTCs m The Scan Tool will display a code only if codes are present in the vehicle s com
118. itional Tests ADJUSTMENTS AND SETTINGS To enter the Tool Setting Menu Mode 1 With the Scan Tool on the Code Retrieval screen press and release the LD M button m The Main Menu displays Use the UP g amp and DOWN w buttons as necessary to highlight Tool Settings then press the ENTER lt 4 button m The Tool Settings Menu displays Make adjustments and_ settings as described in the following paragraphs Adjusting Display Brightness 1 Use the UP g and DOWN w buttons as necessary to highlight Adjust Brightness in the Tool Settings Menu then press the ENTER lt 4 button m The Adjust Brightness screen displays m The Brightness field shows the current brightness setting from 1 to 4 Press the UP button to decrease the brightness of the display make the display darker Press the DOWN w button to increase the brightness of the display make the display lighter Main Menu 4 4 Select and press Live Data Special Test Vehicle Info Tool Settings Press LD M to exit Tool Settings Menu Select and press 4 Audible Tone Display Backlight DTC Library Firmware Version Tool Settings Menu Select and press Audible Tone Display Backlight DTC Library Firmware Version Brightness 3 Darker Lighter Press LD M to exit When the desired brightness is obtained press the ENTER q4 button to save your changes and return
119. itors associated with the faults that were repaired Follow the manufacturer s procedures to perform a Trip Drive Cycle for the appropriate Monitors m While observing the Monitor icons on the Scan Tool s display perform a Trip Drive Cycle for the appropriate Monitor or Monitors Se If the vehicle needs to be driven in order to perform a Trip Drive Cycle ALWAYS have a second person help you One person should drive the vehicle while the other person observes the Monitor icons on the Scan Tool for Monitor RUN status Trying to drive and observe the Scan Tool at the same time is dangerous and could cause a serious traffic accident When a Monitor s Trip Drive Cycle is performed properly the Monitor icon on the Scan Tool s display changes from flashing to solid indicating that the Monitor has run and finished its diagnostic testing m If after the Monitor has run the MIL on the vehicle s dash is not lit and no stored or pending codes associated with that particular Monitor are present in the vehicle s computer the repair was successful m If after the Monitor has run the MIL on the vehicle s dash lights and or a DTC associated with that Monitor is present in the vehicle s computer the repair was unsuccessful Refer to the vehicle s service manual and recheck repair procedures ABOUT REPAIRSOLUTIONS RepairSolutions is a web based service created to assist professional technicians in quickly and accurately di
120. its long term memory D Boost Pressure System Monitor The boost pressure system serves to increase the pressure produced inside the intake manifold to a level greater than atmospheric pressure This increase in pressure helps to ensure compete combustion of the air fuel mixture The Boost Pressure System Monitor checks for component integrity and system operation and tests for faults in the system The computer runs this Monitor once per trip The Boost Pressure System Monitor is supported by compression ignition vehicles only The Boost Pressure System Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory Exhaust Gas Sensor Monitor The exhaust gas sensor is used by a number of systems monitors to determine the content of the exhaust stream The computer checks for component integrity system operation and tests for faults in the system as well as feedback faults that may affect other emission control systems The Exhaust Gas Sensor Monitor is supported by compression ignition vehicles only The Exhaust Gas Sensor Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory
121. l rights reserved No portion of this document may be copied or reproduced by any means without the express written permission of the Manufacturer THIS WARRANTY IS NOT TRANSFERABLE For service send via U P S if possible prepaid to Manufacturer Allow 3 4 weeks for service repair SERVICE PROCEDURES If you have any questions require technical support or information on UPDATES and OPTIONAL ACCESSORIES please contact your local store distributor or the Service Center USA amp Canada 877 227 7226 6 00 AM 6 00 PM PST 7 days a week All others 714 241 6802 6 00 AM 6 00 PM PST 7 days a week FAX 714 432 3979 24 hr Web pro Innova com CarScan 141 TECHNICAL aa Teoh HABLAMOS ESPANOL SERVICE IN USA WE EMPLOY TECHNICIANS CERTIFIED BY ASE ONLY LET US SHOW YOU THEIR CREDENTIALS pro innova com 17352 Von Karman Avenue Irvine CA 92614 TEC MRP 93 0360 Rev A eV Copyright 2013 IEC All Rights Reserved
122. le s computer m Use the UP and DOWN w buttons as necessary to highlight the model year of the vehicle then press the ENTER 4 button 64 CarScan Chrysler Jeep OBD1 Systems CODE RETRIEVAL PROCEDURE 6 Prepare the vehicle to retrieve codes m For 1989 1995 Chrysler Jeep vehi cles The Scan Tool will automatically Menu begin the code retrieval process S keview DTe Proceed to step 6 to continue 1994 FCC and 1995 7 When the Scan Tool is in the process of retrieving codes a One Moment Please message shows on the Scan Tools LCD display m f the Scan Tool fails to link to the se OBR j i i 0 t pl d vehicle s computer a Vehicle is not ratrieval ig In oregiess responding message shows on the Scan Tools LCD display Do the following Verify the ignition is ON Check the cable connections at the Chrysler OBBI Scan Tool and at the vehicle s DLC The vehicle I not x Check DLC cable Turn the ignition OFF wait 10 12 connections Verify ignition is on and seconds then turn back ON to reset press 4 the computer Press the ENTER lt 4 button and repeat steps 4 through 7 as necessary Contact Technical Support m f the Scan Tool cannot link to the vehicle s computer the message Contact Technical Support displays Press The LD M button to return to the Chrysler OBD1 Menu Press ED IM to exit Turn the ignition off and disc
123. le s computer disconnects To re establish communication press the POWERILINK lt x button again When the last retrieved DTC has been displayed and the DTC FF button is pressed the Scan Tool returns to the Ford Mazda Enhanced menu m To view additional enhanced DTCs repeat steps 1 through 5 above m To exit the enhanced mode press the LD M button The Scan Tool returns to the Main Menu General Motors Isuzu Enhanced DTCs When the Scan Tool enters the enhanced mode and General Motors Isuzu is selected if prompted the GM Isuzu Enhanced menu displays You may view the MIL DTC Current DTC Fail Since Clear 44 DTC or History DTC 1 2 Use the UP and DOWN w buttons as necessary to highlight the desired GM Isuzu Enhanced option then press the ENTER lt 4 button Select ang press g m A One moment please message amen TT pie displays while the Scan Tool retrieves History DTC the selected DTCs m f the Scan Tool fails to link to the Press LD M to exit vehicle s computer a Linking Failed message shows on the Scan Tools display GM Isuzu Enhanced Verify the ignition is ON then press ee the POWERILINK S button to tate to establish a ding continue Ignition is ON and press To read the display Refer to DISPLAY FUNCTIONS on page 8 for a description of LCD display elements m A visible icon indicates that the Scan T
124. lection Menu CarScan 7 Scan Tool Controls DISPLAY FUNCTIONS 6 10 11 12 13 14 15 16 17 18 w DOWN button When in MENU mode scrolls DOWN through the menu and submenu selection options When LINKED to a vehicle scrolls DOWN through the current display screen to display any additional data UP button When in MENU mode scrolls UP through the menu and submenu selection options When LINKED to a vehicle scrolls UP through the current display screen to display any additional data GREEN LED Indicates that all engine systems are running normally all Monitors on the vehicle are active and performing their diagnostic testing and no DTCs are present YELLOW LED Indicates there is a possible problem A Pending DTC is present and or some of the vehicle s emission monitors have not run their diagnostic testing RED LED Indicates there is a problem in one or more of the vehicle s systems The red LED is also used to show that DTC s are present DTCs are shown on the Scan Tool s display In this case the Malfunction Indicator Check Engine lamp on the vehicle s instrument panel will light steady on Display Displays settings Menu and submenus test results Scan Tool functions and Monitor status information See DISPLAY FUNCTIONS following for more details CABLE Connects the Scan Tool to the vehicle s Data Link Connector DLC CHRYSLER Connector
125. lfunction goes away However the corresponding CarScan 71 Ford OBD1 Systems CODE RETRIEVAL PROCEDURES REVIEWING DTCs fault code will be stored in memory as a history DTC If the malfunction that caused the history DTC to set does not recur within a predetermined length of time usually within 40 80 ignition key start cycles the computer will automatically erase the related fault code from its memory CODE RETRIEVAL PROCEDURES Overview of Ford Code Retrieval Process Ford s computer self diagnostic system is divided into four main sections 1 Key On Engine Off KOEO Self Test 2 Continuous Memory CM Self Test 3 Key On Engine Running KOER Self Test 4 Other EEC IV System tests These Self Tests are specially designed to monitor and or test the various components and circuits that are controlled by the vehicle s computer and to save and or transmit diagnostic test results to the Scan Tool in the form of numerical fault codes The Continuous Memory Self Test is designed to run continuously whenever the vehicle is normal operation If a fault is detected by the Continuous Memory Self Test a fault code is saved in the vehicle s computer memory for later retrieval Ford s On Board Diagnostic Self Tests are designed in such a way that in order to properly diagnose a problem you must perform all the Self Tests in the proper sequence As described previously some tests are designed to detect problems o
126. ling Criteria Each Monitor is designed to test and monitor the operation of a specific part of the vehicle s emissions system EGR system oxygen sensor catalytic converter etc A specific set of conditions or driving procedures must be met before the computer can command a Monitor to run tests on its related system These conditions are known as Enabling Criteria The requirements and procedures vary for each Monitor Some Monitors only require the ignition key to be turned On for them to run and complete their diagnostic testing Others may require a set of complex procedures such as starting the vehicle when cold bringing it to operating temperature and driving the vehicle under specific conditions before the Monitor can run and complete its diagnostic testing Monitor Has Has Not Run The terms Monitor has run or Monitor has not run are used throughout this manual Monitor has run means the PCM has commanded a particular Monitor to perform the required diagnostic testing on a system to ensure the system is operating correctly within factory specifications The term Monitor has not run means the PCM has not yet commanded a particular Monitor to perform diagnostic testing on its associated part of the emissions system m Trip A Trip for a particular Monitor requires that the vehicle is being driven in such a way that all the required Enabling Criteria for the Monitor t
127. lure is repaired A DTC is stored in the vehicle s computer memory for each fault detected A Scan Tool or Scanner can be used to retrieve DTCs that are stored in the vehicle s computer memory Intermittent History DTCs Intermittent History DTCs are stored in the computer s memory for problems that occur intermittently or for problems that happened in the past but are not currently present Intermittent DTCs may cause the Malfunction Indicator light to flicker or stay on until the intermittent malfunction goes away However the corresponding fault code will be stored in memory as a history DTC If the malfunction that caused the history DTC to set does not recur within a predetermined length of time usually within 40 80 ignition key start cycles the computer will automatically erase the related fault code from its memory CODE RETRIEVAL PROCEDURE Retrieving and using Diagnostic Trouble Codes DTCs for troubleshooting vehicle operation is only one part of an overall diagnostic strategy Never replace a part based only on the DTC definition Each DTC has a set of testing procedures instructions and flow charts that must be followed to confirm the location of the problem This information is found in the vehicle s service manual Always refer to the vehicle s service manual for detailed testing instructions CarScan 105 Toyota Lexus OBD1 Systems CODE RETRIEVAL PROCEDURE e Check your vehicle thoroughly before perfor
128. m the computer s memory with the use of a Code Reader or a Scan Tool On Board Diagnostics Second Generation OBD2 In addition to performing all the functions of the OBD1 System the i OBD2 System has been enhanced with BE Ai To new Diagnostic Programs These programs closely monitor the functions of various emissions related compo nents and systems as well as other systems and make this information readily available with the proper equipment to the technician for evaluation The California Air Resources Board CARB conducted studies on OBD1 equipped vehicles The information that was gathered from these studies showed the following OBD1 System m A large number of vehicles had deteriorating or degraded emissions related components These components were causing an increase in emissions CarScan 13 Onboard Diagnostics COMPUTER ENGINE CONTROLS m Because OBD1 systems only detect failed components the degraded components were not setting codes m Some emissions problems related to degraded components only occur when the vehicle is being driven under a load The emission checks being conducted at the time were not performed under simulated driving conditions As a result a significant number of vehicles with degraded components were passing Emissions Tests m Codes code definitions diagnostic connectors communication protocols and emissions terminology were different for each manufacturer Thi
129. may only require that some but not all Monitors indicate a Has Run status before an Emissions Test Smog Check may be performed Monitors with a Has Run status indicate that all the Sr required conditions they needed to perform diagnosis and testing of their assigned engine area system have been met and all diagnostic testing has completed success fully Monitors with a Has Not Run status have not yet met the conditions they need to perform diagnosis and testing of their assigned engine area system and have not been able to perform diagnostic testing on that system The green yellow and red LEDs provide a quick way to help you determine if a vehicle is ready for an Emissions Test Smog Check Follow the instructions below to perform the Quick Check Perform the CODE RETRIEVAL PROCEDURE as described on page 33 then interpret the LED indications as follows CarScan 57 Using the Scan Tool I M READINESS TESTING Interpreting I M Readiness Test Results 1 GREEN LED Indicates that all engine Saeco ee systems are OK and operating normally i all Monitors supported by the vehicle have mmomror starus og run and performed their self diagnostic Ssooeee to testing The vehicle is ready for an Socowertain pics or Emissions Test Smog Check and there Dees caput Pesi is a good possibility that it can be certified the DTC button to view 2 YELLOW LED Determine from the CODE RETRIEVAL
130. ming any test See BEFORE YOU BEGIN on page 31 for details ALWAYS observe safety precautions whenever working on a vehicle See Safety Precautions on page 3 for more information 1 Locate the vehicle s Data Link Connector DLC See DATA LINK CONNECTOR DLC on page 104 for connection location Some DLCs have a plastic cover that must be removed before connecting the Scan Tool s cable connector 2 Connect the Scan Tool cable with the Toyota Connector Cable Adaptor attached to the Scan Tool then connect the adaptor to the vehicle s DLC Press the POWERILINK i button to turn the Scan Tool sON m The Toyota OBD1 menu displays 3 To view codes in the Scan Tool s memory m Use the UP amp and DOWN wy buttons as necessary to highlight Review DTCs then press the ENTER 4 button 4 To retrieve codes from the vehicle s computer Menu Review DTCs Read DTCs m Use the UP and DOWN w buttons as necessary to highlight Read DTCs then press the ENTER lt q 4 button m The LCD display shows instructions to prepare the vehicle to retrieve codes 5 Do the following before proceeding to step 4 106 m Turn ignition ON and start engine Warm engine to operating temperature Shut engine off after warm up m Make sure throttle is closed m Set gear lever in park for automatic transmissions or neutral for manual transmissions m Turn off all accessories Turn ign
131. monitor the number of times that all conditions necessary for a specific monitor to detect a malfunction have been encountered XXXCOND and the number of times that the vehicle has been operated under the specific conditions for the monitor KXXCOMP Statistics are also provided for the number of times the vehicle has been operated in OBD monitoring conditions OBDCOND and the number of times the vehicle s engine has been started IGNCNTR 1 While linked to the vehicle press and release the LD M button m The Main Menu displays Main Menu 3 4 Select and press Live Data Special Test F Vehicle Info Vehicle Info Tool Settings Press LD M to exit CarScan 123 Additional Tests ADJUSTMENTS AND SETTINGS 2 Use the UP g and DOWN w buttons as necessary to highlight Vehicle Info then press the ENTER lt 4 button Vehicle Info Menu Select and press m The Vehicle Info Menu displays Vehicle ID Available Modules 3 Use the UP g and DOWN w buttons as necessary to highlight IPT then press the ENTER lt 4 button 4 A One moment please message displays while the requested information is retrieved from the vehicle s computer Press LD M to exit IPT m f In use Performance Tracking is not supported by the vehicle under test an advisory message shows on the Scan Tool s display Press the LD M button to exit IPT data not supported Pres
132. mory and retrieves the DTC s VEHICLES COVERED Honda Acura vehicles use a variety of computer systems The Scan Tool may be used to retrieve engine service codes from the following Honda Acura vehicles Model Year Make Model 1990 1991 Honda Accord 1994 1992 1995 Honda Civic 1992 1995 Honda Prelude 1993 1995 Honda Del Sol 1995 Honda Odyssey 1993 1995 Acura Integra ABOUT THE SCAN TOOL The Scan Tool is a device that connects to your vehicle s Data Link Connector to retrieve any Diagnostic Trouble Codes that are stored in the vehicle s on board computer DATA LINK CONNECTOR DLC Your vehicle test connector is known as the Data Link Connector DLC or Diagnostic Connector The Honda DLC connector is a rectangular two socket plastic connector usually light blue in color The connector may be located behind the passenger side of the dashboard near the center console close to the accelerator pedal or near the underhood fuse relay block MALFUNCTION INDICATOR LIGHT MIL Your vehicle s instrument panel has a Check Engine light It may be labeled PGM FI PGM CARB CHECK or show a picture of an engine The Check Engine light is an indicator to warn the vehicle operator of a problem in the computer control system PGM FI PGM CARB CHECK E CarScan 95 Honda OBD1 Systems DIAGNOSTIC TROUBLE CODES DTCs CODE RETRIEVAL PROCEDURE DIAGNOS
133. n Se If a Manufacturer specific DTC was retrieved during the code retrieval process and the manufacturer selected for the code was not Chrysler Jeep Ford Mazda GM Isuzu Honda Acura or Toyota Lexus pressing the DTC FF button after display of the last retrieved DTC returns the screen to the first retrieved DTC the Enhanced DTC menu is not displayed 12 Determine engine system s condition by viewing the Scan Tool s display for any retrieved Diagnostic Trouble Codes code definitions Freeze Frame data and Live Data interpreting the green yellow and red LEDs m lf DTC s were retrieved and you are going to perform the repairs yourself proceed by consulting the Vehicle s Service Repair Manual for testing instructions testing procedures and flow charts related to retrieved code s m f you plan to take the vehicle to a professional to have it serviced complete the PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET on page 28 and take it together with the retrieved codes freeze frame data and LED information to aid in the troubleshooting procedure m To prolong battery life the Scan Tool automatically shuts Off approximately three minutes after it is disconnected from the vehicle The DTCs retrieved captured Live Data Information Monitor Status and Freeze Frame data if any will remain in the Scan Tool s memory and may be viewed at any time by turning the unit On If the Scan Tool s batteries are removed or
134. n advisory message shows on the Scan Tool s display Press the LD M button to return to the System Test Menu 02 Sensor Test data is not 3 Use the UP g and DOWN w buttons supported as necessary to highlight the O2 sensor for which you wish to view test results then press the ENTER lt 4 button 4 When test results have been retrieved Press LD M to exit data for the selected sensor test will show on the Scan Tool s display 5 When you have finished viewing the 02SB1S2 retrieved test data press the LD M button to return to the Select sensor screen Value V Min V Max v 0 000 0 000 0 000 Press LD M to exit CarScan 119 Additional Tests SPECIAL TEST MENU 6 Repeat steps 3 through 5 to view test results for additional sensors When you have finished viewing the retrieved test data press the LD M button to return to the Main Menu screen Non Continuous Test The Non Continuous Test function retrieves and displays test results for emission related powertrain components and systems that are not continuously monitored The tests available are determined by the vehicle manufacturer Sry The Scan Tool does not perform non continuous test but retrieves results from the most recently performed tests from the on board computers memory You may retrieve non continuous test results for only one test at any given time 1 From the Special Test Menu use the UP 4 and
135. n as the vehicle is driven long enough for the problem to recur ERASING DIAGNOSTIC TROUBLE CODES DTCs When the Scan Tool s ERASE function is used to erase DTCs from the vehicle s on board computer Freeze Frame data and manufacturer specific enhanced data are also erased CarScan 53 Using the Scan Tool ERASING DIAGNOSTIC TROUBLE CODES DTCs If you plan to take the vehicle to a Service Center for repair DO NOT erase the codes from the vehicle s computer If the codes are erased valuable information that might help the technician troubleshoot the problem will also be erased Erase DTCs from the computer s memory as follows Sr When DTCs are erased from the vehicle s computer memory the I M Readiness Monitor Status program resets the status of all Monitors to a not run flashing condition To set all of the Monitors to a DONE status an OBD2 Drive Cycle must be performed Refer to your vehicle s service manual for information on how to perform an OBD2 Drive Cycle for the vehicle under test Sr The Scan Tool must be connected to the vehicle s DLC to erase the codes j from the computers memory If you press the ERASE button when connec the DLC to the the Scan Tool is not connected to the Yehe ignition ON vehicle s DLC the erase instruction screen displays The Erase function can be performed SE only from the OBD2 DTC screen The Erase function cannot be performed
136. n emissions related engine malfunction occurs that causes a DTC to set a record or snapshot of engine conditions at the time that the malfunction occurred is also saved in the vehicle s computer memory The record saved is called Freeze Frame data Saved engine conditions include Calc Load Engine RPM Coolant F CarScan Using the Scan Tool CODE RETRIEVAL PROCEDURE 38 but are not limited to engine speed open or closed loop operation fuel system commands coolant temperature calculated load value fuel pressure vehicle speed air flow rate and intake manifold pressure If more than one malfunction is present that causes more than CY one DTC to be set only the code with the highest priority will contain Freeze Frame data The code designated 01 on the Scan Tool display is referred to as the PRIORITY code and Freeze Frame data always refers to this code The priority code is also the one that has commanded the MIL on Retrieved information can be uploaded to a Personal Computer w PC with the use of optional software see instructions included with the software for more information 11 When the last retrieved DTC has been displayed and the DTC FF button is pressed the Scan Tool enters the enhanced mode m See VIEWING ENHANCED DTCs on page 40 to view enhanced DTCs for your vehicle m f you do not wish to view enhanced DTCs press the LD M button to return to the OBD2 DTC scree
137. n the ignition key OFF To prolong battery life the Scan Tool automatically shuts Off after approximately three minutes with no button activity The DTCs retrieved will remain in the Scan Tool s memory and may be viewed at any time If the Scan Tool s batteries are removed or if the Scan Tool is re linked to a vehicle to retrieve codes any prior codes in its memory are automatically cleared Follow the testing and repair procedures outlined in the vehicle s service repair manual to correct hard DTCs Codes should be addressed and eliminated in the order they were received erasing see ERASING DTCs OBD SYSTEMS on page 108 and retesting after each repair is made to be sure the fault was eliminated Code 12 will appear alone when no other fault codes are present m t may be necessary to test drive the vehicle to reset hard fault codes 13 15 24 44 45 and 55 after they have been erased Se Whenever codes 51 52 54 or 55 are displayed with other codes troubleshoot and eliminate the 50 Series codes first then proceed with the lower numbered codes CarScan Honda OBD1 Systems COMPUTER SYSTEM VEHICLES COVERED SCAN TOOL DLC MIL YOUR VEHICLE S COMPUTER SYSTEM Today s vehicles are equipped with computer self testing abilities that can locate problems in your vehicle and store them as Diagnostic Trouble Codes DTC s in the vehicle s onboard computer The Scan Tool allows you access to the computer s me
138. nal codes one at a time m Whenever the Scroll function is used to view additional codes the Scan Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWERILINK lt xE gt button again When the last retrieved DTC has been displayed and the DTC FF button is pressed the Scan Tool returns to the Honda Acura Enhanced menu CarScan Using the Scan Tool VIEWING ENHANCED DTCs m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the LD M button The Scan Tool returns to the Main Menu Toyota Lexus Enhanced DTCs When the Scan Tool enters the enhanced mode and Toyota Lexus is selected if prompted the Toyota Lexus Enhanced menu displays Depending on the protocol used to communicate with your vehicle the Toyota Lexus Enhanced menu provides options to view m Current DTCs History DTCs or Pending DTCs Current DTCs Readiness DTCs 1 Use the UP and DOWN w buttons as necessary to highlight the desired option then press the ENTER lt q 4 button m A One moment please message displays while the Scan Tool retrieves the selected DTCs m f the Scan Tool fails to link to the vehicle s computer a Linking Failed message shows on the Scan Tool s Display Historical DTCs or Toyota Lexus Enhanced Select and press 7 Current DTCs History DTCs Pending DTCs Pr
139. ndicator Lamp MIL is the accepted term Se used to describe the lamp on the dashboard that lights to warn the driver that an emissions related fault has been found Some manufacturers may still call this lamp a Check Engine or Service Engine Soon light There are two types of DTCs used for emissions related faults Type A and Type B Type A codes are One Trip codes Type B DTCs are usually Two Trip DTCs When a Type A DTC is found on the First Trip the following events take place m The computer commands the MIL On when the failure is first found m If the failure causes a severe misfire that may cause damage to the catalytic converter the MIL flashes once per second The MIL continues to flash as long as the condition exists If the condition that caused the MIL to flash is no longer present the MIL will light steady On A DTC is saved in the computer s memory for later retrieval A Freeze Frame of the conditions present in the engine or emissions system when the MIL was ordered On is saved in the computer s memory for later retrieval This information shows fuel system status closed loop or open loop engine load coolant temperature fuel trim value MAP vacuum engine RPM and DTC priority When a Type B DTC is found on the First Trip the following events take place m The computer sets a Pending DTC but the MIL is not ordered On
140. nf a Doan and verify the ignition is ON Turn the ignition OFF wait 5 seconds then turn back ON to reset the computer Ensure your vehicle is OBD2 compliant See VEHICLES COVERED on page 5 for vehicle compliance verification information 34 CarScan Using the Scan Tool CODE RETRIEVAL PROCEDURE m The Scan Tool will display a code only if codes are present in the vehicle s computer memory If no codes are present the message No Powertrain No Powertrain DTCs or DTCs or Freeze Frame Data presently presently stored in the stored in the vehicle s computer Press ere some tet Press the DTC button to view your Enhanced your Enhanced DIES DTC s display Press the DTC FF button to enter the enhanced mode see THE ENHANCED MAIN MENU on page 39 m The Scan Tool is capable of retrieving and storing up to 32 codes in memory for immediate or later viewing 8 To read the display Refer to DISPLAY FUNCTIONS on page 8 for a description of display elements m A visible icon indicates that the Scan Tool is being powered through the vehicle s DLC connector m A visible ap icon indicates that the Scan Tool is linked to communicating with the vehicle s computer m The I M Monitor Status icons indicate the type and number of Monitors the vehicle supports and provides indications of the current status of the vehicle s Monitors A solid Monitor icon indicat
141. nifold The EGR Monitor performs EGR system function tests at preset times during vehicle operation The EGR Monitor is supported by both spark ignition vehicles and compression ignition vehicles The EGR Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory D Evaporative System EVAP Monitor OBD2 vehicles are equipped with a fuel Evaporative system EVAP that helps prevent fuel vapors from evaporating into the air The EVAP system carries fumes from the fuel tank to the engine where they are burned during combustion The EVAP system may consist of a charcoal canister fuel tank cap purge solenoid vent solenoid flow monitor leak detector and connecting tubes lines and hoses Fumes are carried from the fuel tank to the charcoal canister by hoses or tubes The fumes are stored in the charcoal canister The computer controls the flow of fuel vapors from the charcoal canister to the engine via a purge solenoid The computer energizes or de energizes the purge solenoid depending on solenoid design The purge solenoid opens a valve to allow engine vacuum to draw the fuel vapors from the canister 22 CarScan Onboard Diagnostics OBD2 MONITORS
142. nly of codes are present in the vehicle s computer memory If no codes are present a No DTC s are presently stored in the vehicle s computer is displayed CarScan Honda OBD1 One moment please code retrieval is in progress Honda OBD1 The vehicle is not responding Check DLC cable connections Contact Technical Support Press LD M to exit ni UL DTC 16 honda o01 Fuel Injector Circuit Be Honda OBD1 No DTCs are presently stored in vehicle s comput Press is to exit er 97 Honda OBD1 Systems VIEWING DTCs IN THE SCAN TOOL S MEMORY 6 If more than one code was retrieved press the DTC FF button as necessary to display additional codes one at a time In the case of long code definitions a small arrow is shown Sy in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the and w butions as necessary to view the additional information 7 Disconnect the Scan Tool from the vehicle and turn the ignition key OFF 8 To prolong battery life the Scan Tool automatically shuts Off after approximately three minutes with no button activity The DTCs retrieved will remain in the Scan Tool s memory and may be viewed at any time If the Scan Tool s batteries are removed or if the Scan Tool is re linked to a vehicle to retrieve codes any prior codes in its memory are automatically cleared 9
143. nly when the vehicle is in normal operation Some tests are designed to activate components and detect problems only with the Key On and Engine Off Other tests are designed to activate components and test their operation only with the Key On and Engine Running Do not take short cuts If you fail to perform a test or you perform a test out of sequence you might miss a problem that is only detected during that part of the test Reviewing DTCs To view codes in the Scan Tool s memory 1 Locate the vehicle s Data Link Connector DLC See TEST CONNECTORS on page 70 for connector location Some DLCs have a plastic cover that must be removed before connecting the Scan Tool s cable connector 72 CarScan Ford OBD1 Systems CODE RETRIEVAL PROCEDURES KOEO TEST 2 Connect the Scan Tool cable with the Ford Connector Cable Adapter attached to the Scan Tool then connect the adapter to the vehicle s DLC Press the POWER LINK A button to turn the Scan Tool ON then press the ENTER lt 41 button to continue m The Ford OBD1 Menu displays 3 Use the UP and DOWN w buttons as necessary to highlight Review DTCs then press the ENTER lt 4 button Timing Check KOER Test Key On Engine Off KOEO Test During the KOEO Self Test two groups of codes are retrieved by the Scan Tool m The first group of codes retrieved by the Scan Tool are called KOEO codes A KOEO icon will show in the upper righ
144. nnects To re establish communication press the POWERILINK cx button again 5 When the last retrieved DTC has been displayed and the DTC FF button is pressed the Scan Tool returns to the Enhanced Main Menu m To exit the enhanced mode press the LD M button The Scan Tool returns to the Main Menu Press LD M to exit Erasing ABS DTCs If you plan to take the vehicle to a Service Center for repair DO NOT erase the ABS DTCs from the vehicle s computer If the codes are erased valuable information that might help the technician troubleshoot the problem will be erased 1 With the Scan Tool in ABS Mode see Reading ABS DTCs on page 48 for details press the ERASE SQ button 2 A confirmation message shows on the LCD display m f you are sure you want to proceed press the ERASE button to erase the ABS DTCs from the vehicle s computer m f you do not want to continue with the erase process press the LD M button to exit the erase mode and return to the Enhanced Main Menu 3 If you chose to erase ABS DTCs a progress screen displays while the erase function is in progress Erasing clears all ABS DTCs Are you sure NO Press LD M to exit 50 CarScan Using the Scan Tool If the erase was successful a confirmation message shows on the LCD display Press the POWER LINK lt 3 button to re link the Scan Tool to the vehicle If the erase was not successful an a
145. nue m The Ford OBD1 menu displays Use the gy and w buttons as cee necessary to make menu selections KOEO Test Timing Check 3 From the Ford OBD1 menu highlight Krier Balance Test Output State Check then press the ENTER lt 4 button 4 The message Warm up engine to operating temperature displays Start and Output State Check warm up engine to normal operating Warm up engine to temperature Press the ENTER button 2Perting temperature to continue Press 4 to continue 5 When prompted turn ignition key OFF and wait for the on screen prompt If you wish to exit the Output State Check at this time Output State Check press the LD M button Turn ignition ON and perform the following procedures if applicable for 6 Turn ignition ON DO NOT start the engine other applications press 44 If your vehicle is equipped with one of the f25STO Trans Model i i 05 ee ee l hold 47 SL Di following engine types perform the added lt 7 3l Diesel model ho procedures described below 2 3 L Turbo Model put m For 4 9L engines with standard transmission Press and hold the clutch until the Output State Check Active screen displays m For 7 3L diesel engines Press and hold accelerator until the Output State Check Active screen displays m For 2 3L turbo engines with octane switch Put switch in premium position 7 Press the ENTER lt 4 button to continue 8 A One mom
146. o continue The message Warm up engine to operating temperature displays Start and warm up engine to normal operating temperature Press the ENTER lt 4 button to continue When prompted turn off all vehicle accessories turn ignition key OFF and wait for the on screen prompt If you wish to exit the KOER test at this time press the LD M button When instructed by the message on the Scan Tool s display start the engine and press the ENTER lt 4 button to continue A One moment please KOER test is in progress message shows temporarily on the Scan Tool s LCD display The Scan Tool will retrieve the Cylinder Identification ID Code The Cylinder ID Code identifies the number of cylinders for the vehicle under test m f the Scan Tool cannot retrieve the Cylinder ID Code an advisory message displays Press the LD M button to exit and repeat the Key On Engine Off KOEO test page 73 until DTC 11 or 111 displays KOER Test Warm up engine to operating temperature press to continue KOER Test One moment please KOER test is in progress Press LD M to exit KOER Test Vehicle Cylinder Identification 8 cylinder KOER Test Unable to retrieve Cylinder ID or DTCs perform KOEO test until DTC 11 or 111 displays Press LD M to exit Perform the following procedures when prompted by the message on the Scan Tool s display CarScan 79 Ford OBD1 Systems CODE
147. o run and complete its diagnostic testing are met The Trip Drive Cycle for a particular Monitor begins when the ignition key is turned On It is successfully completed when all the Enabling Criteria for the Monitor to run and complete its diagnostic testing are met by the time the ignition key is turned Off Since each of the fifteen monitors is designed to run diagnostics and testing on a different part of the engine or emissions system the Trip Drive Cycle needed for each individual Monitor to run and complete varies CarScan 15 Onboard Diagnostics DIAGNOSTIC TROUBLE CODES DTCs m OBD2 Drive Cycle An OBD2 Drive Cycle is an extended set of driving procedures that takes into consideration the various types of driving conditions encountered in real life These conditions may include starting the vehicle when it is cold driving the vehicle at a steady speed cruising accelerating etc An OBD2 Drive Cycle begins when the ignition key is turned On when cold and ends when the vehicle has been driven in such a way as to have all the Enabling Criteria met for all its applicable Monitors Only those trips that provide the Enabling Criteria for all Monitors applicable to the vehicle to run and complete their individual diagnostic tests qualify as an OBD2 Drive Cycle OBD2 Drive Cycle requirements vary from one model of vehicle to another Vehicle manufacturers set these procedures Consult your veh
148. olenoids and relays controlled by the computer that apply to the vehicle under test and which actuators should energize and de energize when performing the Output State Check All applicable actuators should be on when energized and off when de energized 14 If an actuator is not responding to the Output State Check follow the procedures described in the vehicle s service manual to check computer actuator output circuit voltages and or grounds 15 The Output State Check will stay active as long as desired To quit the Output State Check turn the ignition OFF and disconnect the Scan Tool from the vehicle Wiggle Test Use this test to check for intermittent faults in some circuits Circuits Tested 1984 amp Newer Air Charge Temp Sensor ACT Barometer Pressure Sensor BP Engine Coolant Temp Sensor ECT Exhaust Gas Oxygen Sensor EGO EGR Valve Position Sensor EVP Manifold Absolute Pressure MAP Throttle Position Sensor TP Vane Air Temp Sensor VAT 1985 amp Newer Vane Air Flow Sensor VAF 1986 amp Newer Pressure Feedback EGR Sensor PFE 1990 amp Newer Exhaust Gas Oxygen Sensor EGO Ignition Diagnostic Monitor IDM DIS or Dual Plug DIS only Idle Tracking Switch ITS Mass Air Flow Sensor MAF ALWAYS observe safety precautions whenever working on a w vehicle Read and follow Safety Precautions on page 3 before performing this test 1 Locate the vehicle s Data Link Connector DLC TEST CO
149. on the far left corner of the dash If the DLC cannot be located consult the vehicle s service manual for the location BATTERY REPLACEMENT Replace batteries when the battery symbol is visible on display and or the 3 LEDS are all lit and no other data is visible on screen 1 Locate the battery cover on the back of the Scan Tool 2 Slide the battery cover off use your fingers 3 Replace batteries with three AA size batteries for longer life use Alkaline type batteries 4 Reinstall the battery cover on the back of the Scan Tool Adjustments After Battery Installation The first time the Scan Tool is turned on you must select the desired display language English French or Spanish and unit of measurement USA or Metric as follows 1 Press the POWERILINK S button to turn the Scan Tool ON i Li Idi Li m The Select Language screen displays Crees 2 Use the UP gm and DOWN w buttons SPa ol Seleccione y as necessary to highlight the desired FRANCAIS Chosir et display language Ha 3 When the desired display language is selected press the ENTER lt q 4 button to confirm your selection m The Select Unit screen displays Select Unit 4 Use the UP and DOWN w buttons as necessary to highlight the desired unit Metric of measurement 5 When the desired unit of measurement is selected press the ENTER lt 4 button to Press LD M to exit confirm your selection
150. onnect the Scan Tool Contact Technical Support for DTC 27 Sge assistance Fuel injector control circuit problem 8 If the Scan Tool was able to link to the vehicle successfully a Code retrieval was successful message shows temporarily on the Scan Tool s LCD display followed by a any retrieved DTCs Chrysler OBD1 m The Scan Tool will display a code only lAa eee ey puter if codes are present in the vehicle s computer memory If no codes are present a No DTC s are presently stored in the vehicle s computer message is displayed Press LD M to exit 9 If more than one code was retrieved press the DTC FF button as necessary to display additional codes one at a time CarScan 65 Chrysler Jeep OBD1 Systems CODE RETRIEVAL PROCEDURE SP In the case of long code definitions a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the gy and W buttons as necessary to view the additional information 10 Disconnect the Scan Tool from the vehicle and turn the ignition key OFF 11 To prolong battery life the Scan Tool automatically shuts Off after approximately three minutes of no button activity The DTCs retrieved will remain in the Scan Tool s memory and may be viewed at any time If the Scan Tool s batteries are removed or if the Scan Tool is re linked to a vehicle to retrieve
151. ool is being powered through the vehicle s DLC connector GM m The upper right hand corner of the P1250 curren display shows the number of the code circuit open currently being displayed the total number of codes retrieved m The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the LCD display CarScan 3 Honda Acura Enhanced DTCs When the Scan Tool enters the enhanced Honda Acura Enhanced mode and Honda Acura is selected if Select and press prompted the Honda Acura Enhanced menu displays Depending on the protocol used to communicate with your vehicle the Honda Acura Enhanced menu provides options to view 1 Using the Scan Tool VIEWING ENHANCED DTCs viewing enhanced DTCs In the case of long code definitions or when viewing Freeze Frame data a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the and W buttons as necessary to view the additional information Se I M MONITOR STATUS icons are not displayed when m The Scan Tool will display a code only if codes are present in the vehicle s computer memory If no codes are present a No Enhanced DTC s are fna Stored ia ate presently stored in the vehicle s vehicle s computer computer is displayed Press the LD M button to return to the GM Enhanced menu
152. operly SP in order for the KOER Self Test results to be considered valid Perform an Engine Timing check page 76 before performing the KOER Self Test Check your vehicle thoroughly before performing any test See BEFORE YOU BEGIN on page 31 for details ALWAYS observe safety precautions whenever working on a vehicle Read and follow Safety Precautions on page 3 before performing this test 1 Locate the vehicle s Data Link Connector DLC See TEST CONNECTORS on page 70 for connector location Some DLCs have a plastic cover that must be removed before connecting the Scan Tool cable connector 78 CarScan Ford OBD1 Systems CODE RETRIEVAL PROCEDURES KOER TEST 2 Connect the Scan Tool cable with the Ford Connector Cable Adaptor attached to the Scan Tool then connect the adaptor to the vehicle s DLC Press the POWERILINK button to turn the Scan Tool ON then press the ENTER button to continue m The Ford OBD1 Menu displays Se Use the gy and w buttons as necessary to make menu selections From the Ford OBD1 Menu highlight KOER Test then press the ENTER q4 button Review DTCs KOEO Test Timing Check Cylinder Balance Test Output State Check Wiggle Test m The message Make sure ignition timing is within factory specifications displays If necessary press the LD M button to exit and perform an Engine Timing Check page 76 Otherwise press the ENTER lt 4 button t
153. ork 0 Generic 1 Manufacturer Specific 2 Generic P Codes and Manufacturer Specific B C and U Codes 3 Includes both Generic and Manufacturer Specific Codes Identifies the system where the problem is located P Code systems are listed below B C and U Code systems will vary 0 Fuel and Air Metering Auxiliary Emission Controls 1 Fuel and Air Metering 2 Fuel and Air Metering injector circuit malfunction only 3 Ignition System or Misfire 4 Auxiliary Emission Control System 5 Vehicle Speed Control and Idle Control System 6 Computer Output Circuits 7 Transmission 8 Transmission 9 Transmission A Hybrid Propulsion B Hybrid Propulsion C Hybrid Propulsion Identifies what section of the system is malfunctioning CarScan 17 Onboard Diagnostics DIAGNOSTIC TROUBLE CODES DTCs DTCs and MIL Status When the vehicle s on board computer detects a failure in an emissions related component or system the computers internal diagnostic program assigns a diagnostic trouble code DTC that points to the system and subsystem _ where the fault was found The diagnostic program saves the code in the computer s memory It records a Freeze Frame of conditions present when the fault was found and lights the Malfunction Indicator Lamp MIL Some faults require detection for two trips in a row before the MIL is turned on The Malfunction I
154. our changes and return to the Tool Settings Menu Exiting the Tool Settings Menu 1 Press the LD M button Metric Press LD M to exit m The LCD display returns to the DTC screen if data is currently stored in the Scan Tool s memory or the To Link screen if no data is stored 128 CarScan Generic Global OBD2 PID List The following is a list of Generic Global PIDs and their descriptions Tool Display Unit Value PID Description ACC Pedal D XXX X Accelerator Pedal Position D ACC Pedal E XXX X Accelerator Pedal Position E ACC Pedal F XXX X Accelerator Pedal Position F Air Status UPS DNS Commanded Secondary Air Status OFF Ambient C XXX Ambient Air Temperature F Aux Input On Off Auxiliary Input Status Status BARO kPa XXX Barometric Pressure inHg XX X Calc LOAD XXX X Calculated LOAD Value CAT Temp 11 C XXXX X Catalyst Temperature Bank 1 F Sensor 1 CAT Temp 12 C XXXX X Catalyst Temperature Bank 1 F Sensor 2 CAT Temp 21 C XXXX X Catalyst Temperature Bank 2 F Sensor 1 CAT Temp 22 C XXXX X Catalyst Temperature Bank 2 F Sensor 2 Command XXX X Commanded EGR EGR Command XXX X Commanded Evaporative Purge EVAP Command XXX X Commanded Throttle Actuator TAC Dist DTC Clr km XXXXX Distance since DTC Cleared mile Dist MIL ON km XXXXX Distance Traveled while MIL ON mile S ECT C X
155. ows the recorded Live Data beginning with the trigger frame When you select Yes from the Record Live Data confirmation SF screen the Scan Tool enters the Live Data Playback mode and the display shows the recorded Live Data beginning with the trigger frame 116 CarScan Live Data Mode LIVE DATA PLAYBACK m A vehicle usually supports several PIDs however only a limited amount of PID data can be displayed on the screen at one time If additional PID data is available a small arrow will be shown on the display Use the UP and DOWN buttons as necessary to scroll up or down to view all available PID data m When viewing recorded Live Data look for any irregularities in any of the PID values signal information LTFT RPM MAP TEMP etc If any PIDs are not within specification or irregularities are detected follow the procedures in the vehicle s service repair manual to perform additional troubleshooting and repair When recorded Live Data is played back all available PIDs are shown even if you have customized the Live Data SE are si selections w If there is no Live Data currently stored in the Scan Tool s memory an advisory message shows on the display Press the LD M button to exit the Live Data Playback mode 3 When you have viewed all PID information for the current frame of Live Data use the DOWN w button to scroll to the end of the PID list Highlight Next Frame or Previous Frame as
156. oyota or Lexus the message This vehicle does not support Enhanced communication displays Press the LD M button to return to the Enhanced Menu Enhanced data is not available for your vehicle To view Enhanced DTCs Select Enhanced DTCs from the Enhanced Main Menu then choose the appropriate manufacturer if prompted Refer to VIEWING ENHANCED DTCs on page 40 to view enhanced DTCs for your vehicle To view ABS DTCs Select ABS DTCs from the Enhanced Main Menu then choose the appropriate manufacturer if prompted Refer to VIEWING ABS DTCs on page 48 to view ABS DTCs for your vehicle To view SRS DTCs Select SRS DTCs from the Enhanced Main Menu then choose the appropriate manufacturer if prompted Refer to VIEWING SRS DTCs on page 51 to view SRS DTCs for your vehicle VIEWING ENHANCED DTCs Refer to the appropriate paragraph to view enhanced data for your vehicle This vehicle does not support enhanced communication Press LD M to exit Enhanced Menu Select and press 44 View Enhanced DTCs View ABS DTCs View SRS DTCs Press LD M to exit Enhanced Menu Select and press 4 View Enhanced DTCs View ABS DTCs View SRS DTCs Press LD M to exit Enhanced Menu Select and press 4 View Enhanced DTCs View ABS DTCs View SRS DTCs Press LD M to exit m Chrysler Jeep page 40 m Ford Mazda page 42 m GM lsu2u 0 0 page 44 m Honda Acura
157. part of your body a safe distance from the engine during this test m f the Scan Tool fails to link to the vehicle s computer a Vehicle is not responding message shows on the Scan Tools LCD display Do the ees following A ee 5 n aus Check DLC cable Verify the ignition is ON connections Verify ignition is on and KOEO Test Check the cable connections at the Scan Tool and at the vehicle s DLC Turn the ignition OFF wait 10 seconds then turn back ON to reset the computer 74 CarScan Ford OBD1 Systems CODE RETRIEVAL PROCEDURES KOEO TEST BE SURE to perform the added procedures in step 6 if Sy appropriate for your vehicle BEFORE turning the ignition ON Press POWERILINK dE button to continue m f the Scan Tool cannot link to the vehicles computer the message Contact Technical Support displays Press the LD M button to return to the Ford OBD1 Menu Turn the ignition off and disconnect the Scan Tool Contact Technical Support for Press LD M to exit assistance 9 If the Scan Tool was able to link to the vehicle successfully a Code retrieval was successful message shows temporarily on the Scan Tool s LCD display followed by any retrieved DTCs m The Scan Tool will display a code only if codes are present in the vehicle s computer memory EEC IV m f no problems are found during the DTC 11 ne KOEO KOEO Self Test the computer sends a fault co
158. partment Vehicle sensors switches and actuators are located throughout the engine and are connected by electrical wiring to the on board computer These devices include oxygen sensors coolant temperature sensors throttle position sensors fuel injectors etc Sensors and switches are input devices They provide signals representing current engine operating conditions to the computer Actuators are output devices They perform actions in response to commands received from the computer The on board computer receives information inputs from sensors and switches located throughout the engine These devices monitor critical engine conditions such as coolant temperature engine speed engine load throttle position air fuel ratio etc The computer compares the values received from these sensors with its preset reference values and makes corrective actions as needed so that the sensor values always match the preset reference values for the current driving condition The computer makes adjustments by commanding other devices such as the fuel injectors idle air control EGR valve or Ignition Module to perform these actions TYPICAL COMPUTER OUTPUT DEVICES CONTROL SYSTEM Fuel Injectors Idle Air Control EGR Valve Ignition Module I BLN On Board Computer INPUT DEVICES Coolant Temperature Sensor Throttle Position Sensor Fuel Injectors INPUT DEVICES Oxygen Sensors 12 CarScan Onboard Diagnostics COMPUTER ENGINE CONTROL
159. pport Press the LD M button to return to the Ford OBD1 Menu Turn the ignition OFF and discon nect the Scan Tool Press LD M to exit Contact Technical Support for assis tance 9 If the Scan Tool was able to link to the vehicle successfully an Output State check active Output State Check message shows tempo Suifut State Check is rarily on the Scan Tool s LCD display This message is followed by a display that instructs you how to perform the test Output State Check 10 When prompted press the accelerator pedal Press accelerator to turn once then release This activates the Output actuators ON sud press State Check and energizes most of the actuators relays and solenoids that are controlled by the vehicle s computer Press LD M to exit If your vehicle is equipped with an Integrated Vehicle Speed SF Control disconnect the vacuum supply hose from the speed control servo before pressing the accelerator Reconnect vacuum hose after test 11 To de energize the actuators press the accelerator pedal again and release the actuators are now de energized 12 The procedure can be repeated as many times as desired by pressing and releasing the accelerator pedal to energize and de energize the actuators CarScan 85 Ford OBD1 Systems ADDITIONAL TESTS FOR EEC IV SYSTEMS WIGGLE TEST 13 Consult the vehicle s service repair manual for a list of actuators s
160. precautions whenever working on a vehicle Read and follow Safety Precautions on page 3 before performing this test 1 Locate the vehicle s Data Link Connector DLC See TEST CONNECTORS on page 70 for connector location Some DLCs have a plastic cover that must be removed before connecting the Scan Tool cable connector 2 Connect the Scan Tool cable with the Ford Connector Cable Adaptor attached to the Scan Tool then connect the adaptor to the vehicle s DLC Press the POWERILINK lt 3 button to turn the Scan Tool ON then press the ENTER q4 button to continue CarScan 81 Ford OBD1 Systems ADDITIONAL TESTS FOR EEC IV SYSTEMS CYLINDER BALANCE TEST 8 82 m The Ford OBD1 Menu displays Use the gy and w buttons as necessary to make menu selections From the Ford OBD1 Menu highlight Cylinder Balance Test then press the ENTER lt 4 button Menu Review DTCs KOEO Test Timing Check KOER Test Output State Check Wiggle Test m An advisory message displays If the vehicle is not equipped with Sequential Electronic Fuel Injection SEFI press the LD M button to exit Otherwise press the ENTER lt q 41 button to continue Start and warm up engine to normal operating temperature Press the ENTER lt lt button to continue When prompted turn off all vehicle accessories turn ignition key OFF and wait for the on screen prompt If you wish to exit the Cylinder Balance tes
161. puter memory If no codes are present a No DTC s are presently stored in the vehicle s computer message is displayed If more than one code was retrieved press the DTC FF as necessary to display additional codes one at a time DTC 52 oer Knock Sensor Circuit Toyota OBD1 No DTCs are presently stored in the vehicle s computer In the case of long code definitions a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the gm and W buttons as necessary information to view the additional 10 Disconnect the Scan Tool from the vehicle and turn the ignition key 11 OFF To prolong battery life the Scan Tool automatically shuts Off after approximately three minutes with no button activity The DTCs retrieved will remain in the Scan Tool s memory and may be viewed at any time If the Scan Tool s batteries are removed or if the Scan Tool is re linked to a vehicle to retrieve codes any prior codes in its memory are automatically cleared CarScan 107 Erasing DTCs OBD1 SYSTEMS ERASING DTCs OBD I SYSTEMS When the Scan Tool s ERASE function is used to erase DTCs from the vehicle s on board computer manufacturer specific data where applicable is also erased If you plan to take the vehicle to a service center for repair DO NOT erase the codes from the vehicle s computer If the codes ar
162. r does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory Heated Catalyst Monitor Operation of the heated catalytic converter is similar to the catalytic converter The main difference is that a heater is added to bring the catalytic converter to its operating temperature more quickly This helps reduce emissions by reducing the converter s down time when the engine is cold The Heated Catalyst Monitor performs the same diagnostic tests as the catalyst Monitor and also tests the catalytic converter s heater for proper operation The Heated Catalyst Monitor is supported by spark ignition vehicles only This Monitor is also a Two Trip Monitor Exhaust Gas Recirculation EGR Monitor The Exhaust Gas Recirculation EGR system helps reduce the formation of Oxides of Nitrogen during combustion Temperatures above 2500 F cause nitrogen and oxygen to combine and form Oxides of Nitrogen in the combustion chamber To reduce the formation of Oxides of Nitrogen combustion temperatures must be kept below 2500 F The EGR system recirculates small amounts of exhaust gas back into the intake manifold where it is mixed with the incoming air fuel mixture This reduces combustion temperatures by up to 500 F The computer determines when for how long and how much exhaust gas is recirculated back to the intake ma
163. r is supported by both spark ignition vehicles and compression ignition vehicles Catalyst Monitor The catalytic converter is a device that is installed downstream of the exhaust manifold It helps to oxidize burn the unburned fuel hydrocarbons and partially burned fuel carbon monoxide left over from the combustion process To accomplish this heat and catalyst materials inside the converter react with the exhaust gases to burn the remaining fuel Some materials inside the catalytic converter also have the ability to store oxygen and release it as needed to oxidize hydrocarbons and carbon monoxide In the process it reduces vehicle emissions by converting the polluting gases into carbon dioxide and water The computer checks the efficiency of the catalytic converter by monitoring the oxygen sensors used by the system One sensor is located before upstream of the converter the other is located after downstream of the converter If the catalytic converter loses its ability to store oxygen CarScan 21 Onboard Diagnostics OBD2 MONITORS the downstream sensor signal voltage becomes almost the same as the upstream sensor signal In this case the monitor fails the test The Catalyst Monitor is supported by spark ignition vehicles only The Catalyst Monitor is a Two Trip Monitor If a fault is found on the first trip the computer temporarily saves the fault in its memory as a Pending Code The compute
164. roblem consult your vehicle s repair manual to identify the proper computer PCM fuse circuit and perform any necessary repairs before proceeding 6 The Scan Tool will automatically start a check of the vehicle s computer to determine which type of communication eee protocol it is using When the Scan Tool Auto Link is in progress identifies the computers communication Detecting the Protocol protocol a communication link is established The protocol type used by the vehicle s computer is shown on the display A PROTOCOL is a set of rules and procedures for regulating data transmission between computers and between testing equipment and computers As of this writing ro ee sen progress five different types of protocols ISO 9141 Keyword 2000 J1850 PWM J1850 VPW and CAN are in use by vehicle manufacturers The Scan Tool automatically identifies the protocol type and establishes a communication link with the vehi cle s computer a a Linked to ISO 9141 7 After approximately 10 60 seconds the Scan Tool will retrieve and display any Diagnostic Trouble Codes Monitor Status and Freeze Frame Data retrieved from the vehicle s computer memory m f the Scan Tool fails to link to the vehicle s computer a Linking Failed message shows on the Scan Tools Unable to establish a link display with the vehicle Verify the connection at the Verify the connection at the DLC dna
165. ropriate then No press the ENTER 4 button Yes The GM OBD1 menu displays for your confirmation If the information shown in the Current Selection field is correct highlight Current Selection turn ignition key ON DO NOT start engine and press the ENTER lt 4 button Proceed to step 4 to continue SP If the year shown is not correct highlight Select New Vehicle and press the ENTER button to return to the Select Vehicle Year menu to make your corrections 5 When the Scan Tool is in the process of retrieving codes a One moment please message shows on the Scan Tool s LCD display 92 CarScan e GM OBD1 Systems CODE RETRIEVAL PROCEDURE m f the Scan Tool fails to link to the vehicle s computer a Vehicle is not responding message shows on the Scan Tools LCD display Do the following Verify the ignition is ON Check the cable connections at the Scan Tool and at the vehicle s DLC Turn the ignition OFF wait 10 12 GM OBD1 The vehicle is not responding Check DLC cable connections Verify ignition is on and press seconds then turn back ON to reset the computer Press the ENTER lt q 4 button and repeat steps 4 and 5 as necessary m f the Scan Tool cannot link to the vehicles computer the message Contact Technical Support displays Press the LD M button to return to the Ford OBD1 menu Turn the ignition OFF
166. ry Sedan 2 2L 5S FE DOHC 1994 Camry Sedan 2 2L 5S FE DOHC a a o2 o32 4 4 4 a a 1993 Celica 2 0L 3S GTE DOHC Turbo 1993 Celica 2 2L 5S FE DOHC 1994 Celica 1 8L 7A FE DOHC 1994 Celica 2 2L 5S FE DOHC CarScan 101 Toyota Lexus OBD1 Systems VEHICLES COVERED Eng Eng DOHC DLC Year Model Size Code SOHC Other Type 1992 Celica 2 2L 5S FE DOHC A T 1 Convertible 1992 Celica Coupe 1 6L 4A FE DOHC 1 1992 Celica Coupe 2 2L 5S FE DOHC A T 1 1993 Celica Coupe 1 6L 4A FE DOHC 1 1995 Celica Coupe 1 8L 7A FE DOHC 1 1992 Celica Liftback 2 0L 3S GTE DOHC Turbo 1 1992 Celica Liftback 2 2L 5S FE DOHC 1 1993 Corolla Sedan 1 6L 4A FE DOHC 1 1993 Corolla Sedan 1 8L 7A FE DOHC 1 1994 Corolla Sedan 1 6L 4A FE DOHC 1 1994 Corolla Sedan 1 8L 7A FE DOHC 1 1993 ES 300 3 0L 3VZ FE DOHC 1 1993 GS 300 3 0L 2JZ GE DOHC 1 1993 LS 400 4 0L 1UZ FE DOHC 1 1993 MR2 2 0L 3S GTE DOHC Turbo 1 1993 MR2 2 2L 5S FE DOHC 1 1994 MR2 2 0L 3S GTE DOHC Turbo 1 1994 MR2 2 2L 5S FE DOHC 1 1994 Paseo 1 5L 5E FE DOHC 1 1995 Paseo 1 5L 5E FE DOHC 1 1995 SC 300 3 0L 2JZ GE DOHC 1 1991 Supra 3 0L 7M GTE DOHC Turbo 1 1991 Supra 3 0L 7M GE DOHC 1 1992 Supra 3 0L 7M GTE DOHC Turbo 1 1992 Supra 3 0L 7M GE DOHC 1 1993 Tercel Sedan 1 5L 3E E SOHC 1 1994 Tercel Sedan 1 5
167. s a flashing Monitor icon indicates Has Not Run status Take this information to an emissions professional to determine based on your test results if your vehicle is ready for an Emissions Test Smog Check 58 CarScan Using the Scan Tool I M READINESS TESTING 3 RED LED Indicates there is a problem with one or more of the vehicle s systems System Status mm mm A vehicle displaying a red LED is definitely zmones en not ready for an Emissions Test Smog ESSOSoz0 Ut Check The red LED is also an indication P0743 Cae that there are Diagnostic Trouble Code s Torque Converter Clutch present displayed on the Scan Tool s Sclencid Circuit Electrical screen The Malfunction Indicator Check Engine Lamp on the vehicle s instrument panel will light steady The problem that is causing the red LED to light must be repaired before an Emissions Test Smog Check can be performed It is also suggested that the vehicle be inspected repaired before driving the vehicle further If the Red LED was obtained there is a definite problem present in the system s In these cases you have the following options m Repair the vehicle yourself If you are going to perform the repairs yourself proceed by reading the vehicle service manual and following all its procedures and recommendations m Take the vehicle to a professional to have it serviced The problem s causing the red LED to light must be repaired before the vehicle is re
168. s LD M to exit 5 When the retrieved process is completed In use Performance Tracking statistics for monitors supported by the vehicle under test are shown on the Scan Tool s display I OBDCOND Use the UP and DOWN w buttons IGNCNTR k k CATCOMP1 as necessary to view the entire list 6 When you have finished viewing the statistics press the LD M button to exit Press LD M to exit ADJUSTMENTS AND SETTINGS The Scan Tool lets you make several adjustments and settings to configure the Scan Tool to your particular needs It also contains an OBD2 DTC Library that allows you to search for DTC definitions The following functions adjustments and settings can be performed when the Scan Tool is in Tool Setting Menu Mode Adjust Brightness Adjusts the brightness of the display screen Audible Tone Turns the Scan Tool s audible tone on and off When turned on a tone sounds each time a button is pressed Display Backlight Turns the display backlight on and off DTC Library Library of OBD2 DTC definitions Firmware Version Displays the Scan Tool s firmware version Select Language Sets the display language for the Scan Tool to English French or Spanish m Unit of Measurement Sets the Unit of Measurement for the Scan Tool s display to USA or Metric Adjustments and settings can be made only when the Scan Tool is NOT connected to a vehicle 124 CarScan Add
169. s and release the LD M button Press LD M to exit m The Main Menu displays 3 Use the UP and DOWN w buttons as necessary to highlight Special Test select and press 2 then press the ENTER lt 41 button O2 Sensor Test Non Continuous Test EVAP Leak Test m The Special Test Menu displays O2 Sensor Test Press LD M to exit OBD2 regulations require that applicable vehicles monitor and test operation of the oxygen O2 sensors to identify problems that can affect fuel efficiency and vehicle emissions These tests are performed automatically when engine operating conditions are within predefined limits Results of these tests are stored in the on board computer s memory The O2 Sensor Test function lets you retrieve and view O2 sensor monitor test results for the most recently completed tests from your vehicle s on board computer Vehicles are equipped with multiple O2 sensors O2 sensors are installed both upstream of before and downstream of after the exhaust system Catalytic Converters The name of an O2 sensor identifies its location in the exhaust system The name of each O2 sensor is made up of three parts O2S XX YY or O2S X Y m O2S this is the basic designation for all O2 sensors 118 CarScan Additional Tests SPECIAL TEST MENU m X or XX These characters identify the location of the O2 sensor in relation to a cylinder bank An O2 sensor for cylinder bank 1 is identifie
170. s are EAE E present a No Enhanced DTC s are vehicle s computer presently stored in the vehicle s computer is displayed Press the LD M button to return to the Toyota Lexus Enhanced menu Press LD M to exit If more than one code was retrieved press the DTC FF button as necessary to display additional codes one at a time m Whenever the Scroll function is used to view additional codes the Scan Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWERILINK lt i button again When the last retrieved DTC has been displayed and the DTC FF button is pressed the Scan Tool returns to the Toyota Lexus Enhanced menu m To view additional enhanced DTCs repeat steps 1 through 4 above m To exit the enhanced mode press the LD M button The Scan Tool returns to the Main Menu VIEWING ABS DTCs Se Refer to Vehicle Applications Makes Covered ABS on page 134 for vehicle makes covered Please visit pro innova com for a complete list of vehicles covered Reading ABS DTCs 1 48 The screen shown when View ABS DTCs is selected from the Enhanced Main Menu and the appropriate vehicle manufacturer is selected if prompted depends on the vehicle make m For Chrysler Jeep vehicles ONLY Chrysler Jeep ABS Select and press The Chrysler Jeep ABS Menu displays Use the UP and DOWN w buttons as necessary to highl
171. s caused confusion for the technicians working on different make and model vehicles To address the problems made evident by this study CARB and the EPA passed new laws and standardization requirements These laws required that vehicle manufacturers to equip their new vehicles with devices capable of meeting all of the new emissions standards and regulations It was also decided that an enhanced on board diagnostic system capable of addressing all of these problems was needed This new system is known as On Board Diagnostics Generation Two OBD2 The primary objective of the OBD2 system is to comply with the latest regulations and emissions standards established by CARB and the EPA The Main Objectives of the OBD2 System are m To detect degraded and or failed emissions related components or systems that could cause tailpipe emissions to exceed by 1 5 times the Federal Test Procedure FTP standard m To expand emissions related system monitoring This includes a set of computer run diagnostics called Monitors Monitors perform diagnostics and testing to verify that all emissions related components and or systems are operating correctly and within the manufacturer s specifications m To use a standardized Diagnostic Link Connector DLC in all vehicles Before OBD2 DLCs were of different shapes and sizes m To standardize the code numbers code definitions and language used to describe faults Before OBD2 each vehicle manuf
172. shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the UP and DOWN w buttons as necessary to view the additional information m The Scan Tool will display a code only if codes are present in the vehicle s computer memory If no codes are present a No SRS DTC s are presently N9 SRS Dics are presently stored in the vehicle s computer is computer displayed Press the LD M button to return to the Enhanced Main Menu 4 lf more than one code was retrieved press the DTC FF button as necessary to Press LD M to exit display additional codes one at a time Seseosoco Lh OSGSOSGD Be Chrysler Jeep 13 srs Ale m Whenever the Scroll function is used to view additional codes the Scan Tool s communication link with the vehicle s computer disconnects To re establish communication press the POWER LINK 4 lt x button again 5 When the last retrieved DTC has been displayed and the DTC FF button is pressed the Scan Tool returns to the Enhanced Main Menu 52 CarScan Using the Scan Tool ERASING DIAGNOSTIC TROUBLE CODES DTCs m To exit the enhanced mode press the LD M button The Scan Tool returns to the Main Menu Erasing SRS DTCs If you plan to take the vehicle to a Service Center for repair DO NOT erase the SRS DTCs from the vehicle s computer If the codes are erased valuable
173. st aes bode Press to continue 4 Start and warm up engine to normal operating temperature Press the ENTER button to continue 5 Turn ignition key OFF and wait for the on screen prompt If you wish to exit the KOEO test at this time press the LD M button 6 Turn the ignition ON DO NOT start the engine If your vehicle is equipped with one of the following engine types perform the added procedures described below m For 4 9L engines with standard transmission Press and hold the clutch until all codes are sent steps 7 through 9 m For 7 3L diesel engines Press and hold accelerator until all codes are sent steps 7 through 9 m For 2 3L turbo engines with octane m fr A age One moment please KOEO switch Put switch in premium position test is in progress Press the ENTER lt q 4 button to continue 8 While codes are being retrieved a One moment please KOEO test is in progress message shows on the Scan Tool s LCD display As soon as the ignition is turned on the vehicle s computer enters the Self Test mode Clicking sounds will be heard coming from the engine This is normal It indicates that the vehicle s computer is activating relays solenoids and other components to check their operation KOEO Test WARNING On some vehicles equipped with an Electric Ee Cooling Fan the computer activates the cooling fan to check its operation To avoid injury keep hands or any
174. t Searching for a DTC Definition Using the DTC Library 1 126 Use the UP g and DOWN w buttons as necessary to highlight DTC Library in the Tool Settings Menu then press the ENTER lt 4 button m The Enter DTC screen displays The screen shows the code P0001 with the P highlighted Use the UP amp and DOWN w buttons as necessary to scroll to the desired DTC type P Powertrain U Network B Body C Chassis then press the DTC FF button m The selected character displays solid and the next character is highlighted Select the remaining characters in the DTC in the same way pressing the DTC FF button to confirm each character When you have selected all the DTC characters press the ENTER lt 4 button to view the DTC definition m f you entered a Generic DTC DTCs that start with PO P2 and some P3 The selected DTC and DTC definition if available show on the Scan Tool s display Tool Settings Menu Select and press Adjust Brightness Audible Tone me pep Backlight Firmware Version Select Language Unit of Measurement Press LD M to exit DTC Library DTC P0001 Press DTC to select Press to view Press LD M to exit P2247 02 sensor reference voltage circuit open bank 2 sensor 1 CarScan Additional Tests ADJUSTMENTS AND SETTINGS Se If a definition for the DTC you entered is not ava
175. t at this time press the LD M button When instructed by the message on the Scan Tool s display start the engine and press the ENTER lt 4 button m A One moment please preparation for test is in progress message shows temporarily on the Scan Tool s LCD display When prompted by the message on the Scan Tool s display lightly press the accelerator pedal half way and release to activate the cylinder balance test For 1986 models ONLY Fully press accelerator once and release m The computer is now in Cylinder Balance Test mode and will start cutting fuel to each cylinder in sequence to determine if all the cylinders are contributing equally It may take up to five minutes before the test results are transmitted to the Scan Tool If the vehicle s computer fails to enter Cylinder Balance Test mode do the following Cylinder Balance Test Turn off accessories Turn the ignition off and wait for on screen prompt Press LD M to exit Cylinder Balance Test One moment please preparation for test is in progress Cylinder Balance Test Lightly press accelerator pedal half way and release Press LD M to exit Cylinder Balance Test One moment please test is in progress This may take up to 5 minutes to complete test Press LD M to exit m Lightly press the accelerator pedal again as described in step 7 above CarScan Ford OBD1 Systems ADDITIONAL TES
176. t corner of the LCD display to indicate that the code retrieved is a KOEO code m The second group of codes are called Continuous Memory codes A CM icon will show in the upper right corner of the LCD display to indicate that the code retrieved is a Continuous Memory code Check your vehicle thoroughly before performing any test See BEFORE YOU BEGIN on page 31 for details ALWAYS observe safety precautions whenever working on a vehicle See Safety Precautions on page 3 for more informa tion 1 Locate the vehicle s Data Link Connector DLC See TEST CONNECTORS on page 70 for connector location Some DLCs have a plastic cover that must be removed before connecting the Scan Tool s cable connector 2 Connect the Scan Tool cable with the Ford Connector Cable Adaptor attached to the Scan Tool then connect the adaptor to the vehicle s DLC Press the POWER LINK Oap button to turn the Scan Tool ON then press the ENTER lt 4 button to continue m The Ford OBD1 Menu displays Se Use the gy and w buttons as Review DTCs necessary to make menu selections KOER Test es Cylinder Balance Test Output State Check Wiggle Test CarScan 73 Ford OBD1 Systems CODE RETRIEVAL PROCEDURES KOEO TEST 3 From the Ford OBD1 Menu highlight KOEO Test then press the ENTER button KOEO Test m The LCD display shows instructions to Warm up engine to prepare the vehicle for the KOEO Te
177. t damage to the on board computer when taking vehicle electrical measurements always use a digital multimeter with at least 10 MegOhms of impedance Fuel and battery vapors are highly flammable To prevent an explosion keep all sparks heated items and open flames away from the battery and fuel fuel vapors DO NOT SMOKE NEAR THE VEHICLE DURING TESTING Don t wear loose clothing or jewelry when working on an engine Loose clothing can become caught in the fan pulleys belts etc Jewelry is highly conductive and can cause a severe burn if it makes contact between a power source and ground CarScan About the Scan Tool VEHICLES COVERED VEHICLES COVERED The Scan Tool is designed to work on all OBD2 compliant vehicles All 1996 and newer vehicles cars and light trucks sold in the United States are OBD2 compliant Federal law requires that all 1996 and newer cars and light Se trucks sold in the United States must be OBD2 compliant this includes all Domestic Asian and European vehicles Some 1994 and 1995 vehicles are OBD2 compliant To find out if a 1994 or 1995 vehicle is OBD2 compliant check the following 1 The Vehicle Emissions Control Information VECI Label This label is located under the hood or by the radiator of most vehicles If the vehicle is OBD2 compliant the label will state OBD Il Certified VEHICLE EMISSION CONTROL INFORMATION ENGINE FAMILY EFN2 6YBT2BA OBD II DISPLACEMENT 2 6L CERTIF
178. t provides the necessary driving condition to enable a vehicle Monitor to run and complete its diagnostic testing VECI Vehicle Emission Control Information Decal CarScan 137 138 CarScan CarScan 139 140 CarScan Warranty and Servicing LIMITED ONE YEAR WARRANTY The Manufacturer warrants to the original purchaser that this unit is free of defects in materials and workmanship under normal use and maintenance for a period of one 1 year from the date of original purchase If the unit fails within the one 1 year period it will be repaired or replaced at the Manufacturer s option at no charge when returned prepaid to the Service Center with Proof of Purchase The sales receipt may be used for this purpose Installation labor is not covered under this warranty All replacement parts whether new or remanufactured assume as their warranty period only the remaining time of this warranty This warranty does not apply to damage caused by improper use accident abuse improper voltage service fire flood lightning or other acts of God or if the product was altered or repaired by anyone other than the Manufacturer s Service Center The Manufacturer under no circumstances shall be liable for any consequential damages for breach of any written warranty of this unit This warranty gives you specific legal rights and you may also have rights which vary from state to state This manual is copyrighted with al
179. termine if tailpipe emissions are within Federal State Local requirements LCD Liquid Crystal Display LED Light Emitting Diode LTFT Long Term Fuel Trim is a program in the vehicle s computer designed to add or subtract fuel from the vehicle to compensate for operating conditions that vary from the ideal A F ratio long term Manufacturer Specific Code A DTC that applies only to OBD2 compliant vehicles made by a specific manufacturer MIL Malfunction Indicator Lamp also referred to as Check Engine light OBD1 On Board Diagnostics Version 1 also referred to as OBD 136 CarScan Glossary GLOSSAY OF TERMS AND ABBREVIATIONS OBD2 On Board Diagnostics Version 2 also referred to as OBD II On Board Computer The central processing unit in the vehicle s computer control system PCM Powertrain Control Module Pending Code A code recorded on the first trip for a two trip code If the fault that caused the code to be set is not detected on the second trip the code is automatically erased PID Parameter Identification STFT Short Term Fuel Trim is a program in the vehicle s computer designed to add or subtract fuel from the vehicle to compensate for operating conditions that vary from the ideal A F ratio The vehicle uses this program to make minor fuel adjustments fine tune on a short term basis Trip Drive Cycle Vehicle operation tha
180. the LCD display If the correct manufacturer is shown press the ENTER lt 4 button to continue lf the correct manufacturer is not shown press the LD M button to return to the list of vehicle manufacturers Infiniti Isuzu Jaguar Kia Land Rover More Es You have selected Acura Is this correct Yes Press 4 No Press LD M If the manufacturer for your vehicle is not listed use the UP and DOWN buttons as necessary to select Other manufacturer and press the ENTER lt q button for additional DTC information If the definition for the currently displayed code is not available an advisory message shows on the Scan Tool s LCD display 10 If more than one DTC was retrieved and to view Freeze Frame Data press and release the DTC FF button as necessary p ouron aus J SS eS mast P 1639 Alfa Romeo The DTC Definition is not available please visit pro innova com Each time the DTC FF button is pressed and released the Scan Tool will scroll and display the next DTC in sequence until all DTCs in its memory have displayed Freeze Frame Data if available will display after DTC 1 Whenever the Scroll function is used to view additional DTCs and Freeze Frame Data the Scan Tool s communication link with the vehicle s computer disconnects iG re establish communication press the POWERLLINK a gt button again m In OBD2 systems when a
181. the ENTER lt 4 button again to return to the PID list 7 If you experience vehicle problems view and or compare the Live Data PID information displayed on the Scan Tool to specifications in the vehicle s repair manual If desired you can customize the Live Data display to show only those PIDs you are interested in viewing See Customizing Live Data PIDs below for details You may also choose to Communication with Vehicle Lost Verify the connection at the DLC Press DTC button to continue Frame 8 ECT F 172 17617 Air Flow Rate from Mass Air Flow Sensor g s capture record Live Data for later viewing See RECORDING CAPTURING LIVE DATA on page 112 for details CUSTOMIZING LIVE DATA PIDs This feature lets you customize the Scan Tool display to show only those PIDs that are of interest at the current time You can customize the Live Data display by placing the Scan Tool in Custom Live Data mode and selecting only the PIDs that you wish to display To customize the Live Data display proceed as follows 1 While linked to the vehicle start the engine then press and release the LD M button m The Main Menu displays 2 Use the UP and DOWN w buttons as necessary to highlight Live Data Menu then press the ENTER lt 41 button m The Live Data menu displays 3 Use the UP and DOWN w buttons as necessary to highlight Custom Live Data
182. the Ford Mazda Enhanced menu Ford Mazda Enhanced Unable to establish a link with the vehicle Verify the i n is ON and press Ford Mazda KOER The vehicle must be running to perform the KOER test Press LD M to exit An instructional message shows on the Scan Tool s display Perform test procedures as appropriate CarScan Using the Scan Tool VIEWING ENHANCED DTCs If the Continuous Memory or KOEO test was selected turn the ignition OFF then back ON Press the ENTER q4 button to start the test A One moment please message displays while the test is in progress If the KOER test was selected press the ENTER lt 4 button to continue A One moment please message displays while the test is in progress Turn the steering wheel to the right then release Press and release the brake pedal Cycle the overdrive switch if equipped 3 To read the display Ford Mazda KOEO Turn ignition OFF then back ON When complete press 44 to start KOEO test Press LD M to exit Ford Mazda KOER When test starts do the following Turn steering wheel 1 2 turn to right Press and release the brake pedal Cycle the overdrive switch if equipped Press 4 to continue Press LD M to exit Refer to DISPLAY FUNCTIONS on page 8 for a description of LCD display elements m A visible icon indicates that the Scan Tool is being powered
183. the computer control system SERVICE CHECK ENGINE ENGI If your instrument panel indicator lights do not come on when you turn on the ignition please refer to your vehicle s service manual You may have problems in the vehicle s circuitry DIAGNOSTIC TROUBLE CODES DTC s 90 The service codes are also called fault codes Diagnostic Trouble Codes DTC s or trouble codes These codes can be used to identify systems or components that are malfunctioning The computer records codes for two types of problems m Hard Diagnostic Trouble Codes Hard DTCs represent problems that are occurring now and cause the instrument panel Malfunction Indicator Lamp MIL or Check Engine light to illuminate and remain on until the failure is repaired A DTC is stored in the vehicle s computer memory for each fault detected A Scan Tool or Scanner can be used to retrieve DTCs that are stored in the vehicle s computer memory CarScan GM OBD1 Systems CODE RETRIEVAL PROCEDURE m Intermittent History DTCs Intermittent History DTCs are stored in the computer s memory for problems that occur intermittently or for problems that happened in the past but are not currently present Intermittent DTCs may cause the Malfunction Indicator light to flicker or stay on until the intermittent malfunction goes away However the corresponding fault code will be stored in memory as a history DTC If the malfunction that
184. the following areas before starting any test Check the engine oil power steering fluid transmission fluid if applicable engine coolant and other fluids for proper levels Top off low fluid levels if needed Make sure the air filter is clean and in good condition Make sure all air filter ducts are properly connected Check the air filter ducts for holes rips or cracks Make sure all engine belts are in good condition Check for cracked torn brittle loose or missing belts Make sure mechanical linkages to engine sensors throttle gearshift position transmission etc are secure and properly connected See your vehicle s service manual for locations Check all rubber hoses radiator and steel hoses vacuum fuel for leaks cracks blockage or other damage Make sure all hoses are routed and connected properly Make sure all spark plugs are clean and in good condition Check for damaged loose disconnected or missing spark plug wires Make sure the battery terminals are clean and tight Check for corrosion or broken connections Check for proper battery and charging system voltages Check all electrical wiring and harnesses for proper connection Make sure wire insulation is in good condition and there are no bare wires Make sure the engine is mechanically sound If needed perform a compression check engine vacuum check timing check if applicable etc CarScan 31 Preparation for Testing VEHICLE SERVICE MA
185. the vehicle is in a wide open throttle condition but the vehicle is really at idle and the idle condition is confirmed by the signals from all other sensors Based on the input data the computer determines that the signal from the throttle position sensor is not rational does not make sense when compared to the other inputs In this case the signal would fail the rationality test The CCM is supported by both spark ignition vehicles and compression ignition vehicles The CCM may be either a One Trip or a Two Trip Monitor depending on the component 20 CarScan Onboard Diagnostics OBD2 MONITORS Fuel System Monitor This Monitor uses a Fuel System Correction program called Fuel Trim inside the on board computer Fuel Trim is a set of positive and negative values that represent adding or subtracting fuel from the engine This program is used to correct for a lean too much air not enough fuel or rich too much fuel not enough air air fuel mixture The program is designed to add or subtract fuel as needed up to a certain percent If the correction needed is too large and exceeds the time and percent allowed by the program a fault is indicated by the computer The Fuel System Monitor is supported by both spark ignition vehicles and compression ignition vehicles The Fuel System Monitor may be a One Trip or Two Trip Monitor depending on the severity of the problem Misfire
186. this two minute period follow instructions in the vehicle s service repair manual to check the ignition timing with a timing light and ensure that it is 20 above the specified base timing value 3 Example If base timing specification is 10 BTDC the acceptable timing light reading should be in the range of 27 to 33 BTDC Base timing specifications can be found on the Vehicle Emission Control Information VECI decal The decal is located under the hood or near the radiator If the VECI decal is missing or damaged refer to your vehicle s service repair manual for specifications 9 If timing light readings are within the acceptable range m Base timing and the vehicle computer s ability to advance timing are working properly m Proceed to the KOER Self Test below 10 If timing light readings are not within the acceptable range m Base timing may be out of adjustment or the computer may have problems with the timing advance circuit m Refer to the vehicle s service repair manual for procedures on adjusting and or repairing ignition timing Repairs to ignition timing must be made before proceeding to the KOER Test Key on Engine Running KOER Self Test IMPORTANT The KOEO Self Test page 73 must be performed first and a pass code code 11 or 111 must be obtained before performing the KOER Self Test otherwise results of the KOER Self Test may be invalid Ignition timing and timing advance must be operating pr
187. to ensure their proper operation Currently there are a maximum of fifteen Monitors available for use Se Each Monitor has a specific function to test and diagnose only its designated emissions related component or system The names of the Monitors Oxygen Sensor Monitor Catalyst Monitor EGR Monitor Misfire Monitor etc describe which component or system each Monitor is designed to test and diagnose Emissions Inspection and Maintenance I M Readiness 56 Monitor Status Information I M Readiness Monitor Status shows which of the vehicle s Monitors have run and completed their diagnosis and testing and which ones have not yet run and completed testing and diagnosis of their designated sections of the vehicle s emissions system m Ifa Monitor was able to meet all the conditions required to enable it to perform the self diagnosis and testing of its assigned engine system it means the monitor HAS RUN m f a Monitor has not yet met all the conditions required for it to perform the self diagnosis and testing of its assigned engine system it means the Monitor HAS NOT RUN The Monitor Run Not Run status does not show whether Cy or not a problem exists in a system Monitor status only indicates whether a particular Monitor has or has not run and performed the self diagnosis and testing of its associated system CarScan Using the Scan Tool I M READINESS TESTING Performing I M Readiness Quick Check
188. tor A visible a icon indicates that the Scan Tool is linked to communicating with the vehicle s computer The upper right hand corner of the display shows the number of the code currently being displayed the total number of codes retrieved The Diagnostic Trouble Code DTC and related code definition are shown in the lower section of the LCD display I M MONITOR STATUS icons are not displayed when viewing ABS DTCs CarScan eesoeono Lh OSTSOSS fe ABS C1274 Right front ABS wheel speed sensor ABS sensor rotor signal abnormal 49 Using the Scan Tool VIEWING ABS DTCs Sr In the case of long code definitions a small arrow is shown in the upper lower right hand corner of the code display area to indicate the presence of additional information Use the UP A and DOWN W buttons as necessary to view the additional information m The Scan Tool will display a code only if codes are present in the vehicles computer memory If no codes are eee l present a No ABS DTC s are presently Stored inthe venidie s stored in the vehicle s computer is displayed Press the LD M button to return to the Enhanced Main Menu 4 lf more than one code was retrieved press the DTC FF button as necessary to display additional codes one at a time m Whenever the Scroll function is used to view additional codes the Scan Tool s communication link with the vehicle s computer disco
189. u then press the ENTER lt 4 button View SRS DTCs 114 CarScan Live Data Mode RECORDING CAPTURING LIVE DATA m The Live Data menu displays 3 Use the UP g and DOWN buttons as necessary to highlight Record Live Data then press the ENTER button m The Record Live Data Menu displays 4 Use the UP g and DOWN w buttons as necessary to highlight Record by manual trigger then press the ENTER button 5 When the Record by Manual Trigger screen displays select the desired trigger point as follows e Record Live Data Live Data Menu Select and press 4 Custom Live Data Playback Live Data Record Live Data Menu Record by DTC trigger Record by manual trigger Press LD M to exit The Scan Tool is capable of recording approximately 100 frames of Live Data Record by DTC trigger lets you select the point in time at which you wish the Scan Tool to begin recording Live Data You can set the trigger point to record the 100 frames of data before an event when the DTC was set after the event or in the middle 50 frames before and 50 frames after the event m Beginning records approximately 100 frames of Live Data after the ENTER lt 4 button was pressed m Middle records approximately 50 frames of Live Data before and 50 frames after the ENTER lt 4 button was pressed m End records approximately 100 frames of Live Data before the
190. uring engine warm up 2 The extra oxygen injected into the exhaust stream also helps the catalytic converter reach operating temperature more quickly during warm up periods The catalytic converter must heat to operating temperature to work properly The Secondary Air System Monitor checks for component integrity and system operation and tests for faults in the system The computer runs this Monitor once per trip The Secondary Air System Monitor is a Two Trip monitor If a fault is found on the first trip the computer temporarily saves this fault in its memory as a Pending Code The computer does not command the MIL on at this time If the fault is sensed again on the second trip the computer commands the MIL On and saves the code in its long term memory Non Methane Hydrocarbon Catalyst NMHC Monitor The non methane hydrocarbon catalyst is a type of catalytic converter It helps to remove non methane hydrocarbons NMH left over from the combustion process from the exhaust stream To accomplish this heat and catalyst materials react with the exhaust gases to convert NMH to less harmful compounds The computer checks the efficiency of the catalyst by monitoring the quantity of NMH in the exhaust stream The monitor also verifies that sufficient temperature is present to aid in particulate matter PM filter regeneration The NMHC Monitor is supported by compression ignition vehicles only The NMHC Monitor is a
191. w a frame by frame playback of recorded Live Data see LIVE DATA PLAYBACK on page 116 for details If No is selected the display returns to the Main Menu Record Live Data 9 You can exit the Record Live Data Mode at any time by pressing the LD M button until the Main Menu displays If desired you can transfer the recorded Live Data information etn to a personal computer with the use of optional software see instructions included with the software for more information Important Information 1 When Live Data capture is initiated the green yellow and red LEDs on the Scan Tool will flash three times to indicate that Live Data is being saved to the Scan Tool s memory LIVE DATA PLAYBACK Once Live Data has been recorded it is saved in the Scan Tool s memory You can view recorded Live Data immediately after recording by selecting Yes from the Record Live Data confirmation screen see RECORDING CAPTURING LIVE DATA on page 112 for more information or you can view it later using the Playback function I M MONITOR STATUS a f 1 With the Scan Tool not connected to a vehicle press the POWER LINK ap EESSESES button Live Data m The To Link screen shows on the cactenicsy to dj Engine RPM Scan Tool s display Coolant SF uel Sys 2 Press the LD M button to place the Scan Mar PSD 4 Peer es a park Adv Tool in Live Data Playback mode TPS Veh Speed MPH m The display sh
192. weak or noncontributing cylinder The computer shuts off fuel cuts off power to injectors to each cylinder in sequence and monitors for RPM changes drop Based on this information the computer determines if all the cylinders are contributing power equally for proper engine operation or if some cylinders are only contributing partially or not contributing at all SEFI Introduction Sequential Electronic Fuel Injection SEFI belongs to a family of fuel injection systems called Multi port Multipoint Fuel Injection Multi port MFI fuel injection systems contain one fuel injector per cylinder and the vehicle s computer electronically controls their operation On some multi port fuel injection systems the injectors all fire at the same time and at every engine revolution On other systems the injectors fire in groups and or at every other engine revolution What distinguishes Sequential Electronic Fuel Injection systems from other multi port fuel injection systems is that each injector is independently energized and fires sequentially one after the other in the proper firing order This gives the vehicle s computer more control to cut the fuel to one injector at a time this can t be accomplished on the other systems because they fire in groups of two ore more injectors Cylinder Balance Test Procedure Check your vehicle thoroughly before performing any test See sr BEFORE YOU BEGIN on page 31 for details ALWAYS observe safety
193. y 5 0L V 8 F FBC 2150A 5 0L V 8 N EFI 5 8L V 8 G FBC 2150A E and F Series Trucks Vans 7 3L V 8 M Diesel 8500 Ib GVW or less only 7 5L V 8 G EFI 1991 1994 2 3L l 4 OHC A EFI MFI Ranger EEC IV 2 9L V 6 T EFI 3 0L V 6 U EFI SEFI SFI Aerostar Ranger CarScan 69 Ford OBD1 Systems VEHICLES COVERED TRUCKS VANS TEST CONNECTORS 8th Fuel Systems VIN Carburetor Computer Engine Digit Model Application Special Notes System 1991 1994 Cont 4 0L V 6 X EFI MFI Aerostar Explorer Ranger EEC IV 4 9L 1 6 Y H EFI MFI SFI Bronco E and F Series 5 0L V 8 N EFI MFI SFI Trucks Vans 8500 Ib GVW or 5 8L V 8 H R EFI MFI SFI Ss 7 3L V 8 M Diesel E and F Series Trucks Vans 7 3L V 8 K Turbo Diesel Excludes 1994 diesel models 7 5L V 8 G EFI MFI 1995 3 0L V 6 U SFI Aerostar Excludes Explorer EEC IV Ranger and Windstar 4 0L V 6 X SFI 4 9L l 6 Y SFI E and F series Trucks and Vans Excludes Natural Gas equipped vehicles 5 0L V 8 N SFI Bronco E and F series Trucks 5 8L V 8 H R MFI and Vans 7 5L V 8 G MFI E 350 F 250 350 Excludes California F Super Duty Excludes Diesel NOTES Carburetor Model Carburetor model numbers are usually stamped on top of the carbure tor or on a metal tab attached to the carburetor Consult your vehicle s repair manual for proper identification VIN Number The VIN number s used in this column identify the v

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