1998 Mark VIII Workshop Manual

Transcription

1 Page 1 of 16 SECTION : Automatic Transaxle/Transmission External Controls 1998 Mark VIII Workshop Manual DIAGNOSIS AND TESTING Procedure revision date: 03/15/1998 External Controls Refer to Wiring Diagrams Cell 29, Transmission Controls (4R70W) for schematic and connector information. Refer to Wiring Diagrams Cell 37, Shift Lock for schematic and connector information. Refer to Wiring Diagrams Cell 58, Lighting Control Module for schematic and connector information. Refer to Wiring Diagrams Cell 65, Warning Indicators for schematic and connector information. Refer to Wiring Diagrams Cell 90, Turn/Stop Hazard Lamp for schematic and connector information. Special Tool(s) 73 Digital Multimeter 105-R0051 or equivalent New Generation Star (NGS) Tester 418-F048 ( ) or equivalent Rotunda EEC-V 104-PIN Breakout Box ( ) or equivalent Inspection and Verification 1. Verify the customer's concern by operating the brake shift interlock or the transmission control switch to duplicate the condition. 2. Inspect to determine if one of the following apply: Visual Inspection Chart Mechanical Damaged or misadjusted shift cable and bracket Damaged transmission range selector lever Damaged ignition/shifter interlock cable Electrical Damaged power distribution box Fuse 12 (15A) or Fuse junction panel Fuse 28 (10A) Damaged stoplight switch Damaged shift lock actuator Circuity open/shorted 3. If the inspection reveals an obvious concern(s) that can be readily identified, service as required. 4. If the concern remains after the inspection, connect the Rotunda New Generation Star (NGS) Tester to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the NGS menu. If the NGS does not communicate with the vehicle: check that the program card is properly installed. check the connections to the vehicle. check the ignition switch position. If the NGS still does not communicate with the vehicle; refer to the New Generation Star Tester manual. 5. Perform the DATA LINK DIAGNOSTIC TEST using the NGS. If the NGS responds with: CKT 914 and CKT 915 = ALL MODULES NO RESPONSE/NOT EQUIPPED, go to Communication System Diagnostics in Section to diagnose network concern. NO RESPONSE/NOT EQUIPPED for the steering column/ignition/lighting control module (SCIL), go to Pinpoint Test A. NO RESPONSE/NOT EQUIPPED for the message center module (MCM), go to Pinpoint Test B. SYSTEM PASSED for the steering column/ignition/lighting control module (SCIL), retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs, then execute Self Test Diagnostics for the steering column/ignition/lighting control module (SCIL). SYSTEM PASSED for the message center module (MCM), retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs, then execute Self Test Diagnostics for the message center module (MCM). 6. If the SCIL DTCs retrieved are related to the concern, go to the Steering Column/Ignition/Lighting Control Module (SCIL) Diagnostic Trouble Code (DTC) Index to continue diagnostics. If the message center module DTCs retrieved are related to the concern, go to the Message Center Module (MCM) Diagnostic Trouble Code (DTC) Index to continue diagnostics. 7. If no DTCs related to the concern are retrieved, go to the Symptom Chart to continue diagnostics. Steering Column/Ignition/Lighting Control (SCIL) Module Diagnostic Trouble Code (DTC) Index DTC Description DTC Caused By C1446 BRAKE SWITCH CIRCUIT FAILURE SCIL GO to Section B1246 PANEL DIM POTENTIOMETER SWITCH CIRCUIT FAILURE SCIL GO to Section B1312 LAMP HEADLAMP INPUT CIRCUIT SHORT TO BATTERY SCIL GO to Section B1334 LUGGAGE COMPARTMENT DOOR AJAR CIRCUIT SHORT TO GROUND SCIL GO to Section B1342 ECU DEFECTIVE SCIL GO to Section Action to Take

2 Page 2 of 16 B1353 IGNITION KEY-IN CIRCUIT OPEN SCIL GO to Section B1360 IGNITION RUN/ACC CIRCUIT OPEN SCIL GO to Section B1364 IGNITION START CIRCUIT OPEN SCIL GO to Section B1446 WIPER PARK SENSE CIRCUIT FAILURE SCIL GO to Section B1485 BRAKE PEDAL INPUT SHORT TO B+ SCIL GO to Section B1509 FLASH-TO-PASS SWITCH CIRCUIT SHORT TO BATTERY SCIL GO to Section B1522 HOOD SWITCH CIRCUIT SHORT TO GROUND SCIL GO to Section A. B1562 DOOR LOCK CYLINDER CIRCUIT SHORT TO GROUND SCIL GO to Section A. B1566 DOOR AJAR CIRCUIT SHORT TO GROUND SCIL GO to Section B1600 PATS IGNITION KEY TRANSPONDER SIGNAL IS NOT RECEIVED SCIL GO to Section B. B1601 PATS RECEIVED INCORRECT KEY CODE FROM IGNITION KEY TRANSPONDER SCIL GO to Section B. B1676 BATTERY VOLTAGE OUT OF RANGE SCIL GO to Section B1682 PATS IS DISABLED (CHECK LINK BETWEEN PATS AND TRANSPONDER) SCIL GO to Section B. B1687 LAMP DOME INPUT CIRCUIT SHORT TO BATTERY SCIL GO to Section B1689 AUTOLAMP DELAY CIRCUIT FAILURE SCIL GO to Section B1796 LAMP HEADLAMP LOW BEAM CIRCUIT SHORT TO BATTERY SCIL GO to Section B1875 TURN SIGNAL/HAZARD SWITCH SIGNAL CIRCUIT FAILURE SCIL GO to Section B1980 BULB OUTAGE CONDITION DETECTED SCIL GO to Section B2328 STEERING COLUMN REACH FEEDBACK POTENTIOMETER CIRCUIT FAILURE B2332 STEERING COLUMN TILT FEEDBACK POTENTIOMETER CIRCUIT FAILURE SCIL GO to Section SCIL GO to Section B2351 STEERING COLUMN SWITCH SIGNAL CIRCUIT FAILURE SCIL GO to Section U1027 SCP INVALID OR MISSING DATA FOR ENGINE RPM PCM REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. U1041 SCP INVALID OR MISSING DATA FOR VEHICLE SPEED ABS GO to Section , Inspection and Verification to continue diagnosis. U1057 SCP INVALID OR MISSING DATA FOR VEHICLE CONFIGURATION U1059 SCP INVALID OR MISSING DATA FOR TRANSMISSION/ TRANSAXLE/PRNDL SCIL PCM GO to Section , Inspection and Verification to continue diagnosis. REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. U1123 SCP INVALID OR MISSING DATA FOR ODOMETER ABS GO to Section , Inspection and Verification to continue diagnosis. U1147 SCP INVALID OR MISSING DATA FOR VEHICLE SECURITY PCM PERFORM J1850 Communication Network diagnostics. GO to Communication Network Diagnostics in Section U1180 SCP INVALID OR MISSING DATA FOR PERSONALIZATION (MEMORY) FEATURES U1181 SCP INVALID OR MISSING DATA FOR PERSONALIZATION (MEMORY) FEATURES DDM DDM GO to Section , Inspection and Verification to continue diagnosis. GO to Section , Inspection and Verification to continue diagnosis. U1197 SCP INVALID OR MISSING DATA FOR DOOR LOCKS DDM GO to Section B, Inspection and Verification to continue diagnosis. U1198 SCP INVALID OR MISSING DATA FOR EXTERNAL ACCESS (DOORS) U1199 SCP INVALID OR MISSING DATA FOR EXTERNAL ACCESS (DOORS) DDM DDM GO to Section B, Inspection and Verification to continue diagnosis. GO to Section , Inspection and Verification to continue diagnosis. U1211 SCP INVALID OR MISSING DATA FOR RESTRAINTS DSM GO to Section , Inspection and Verification to continue diagnosis. U1222 SCP INVALID OR MISSING DATA FOR INTERIOR LAMPS DDM GO to Section B, Inspection and Verification to continue diagnosis. Steering Column/Ignition/Lighting Control (SCIL) Module Parameter Identification Index Display Description PID Content CCNTSCI NUMBER OF CONTINUOUS DTCS ON SCIL one count per bit BOO_SCI BRAKE SWITCH INPUT PARK_BRK PARKING BRAKE SWITCH INPUT TILT STEERING COLUMN TILT SWITCH SHORT UP DOWN OFF TELESCP STEERING COLUMN TELESCOPE SWITCH SHORT IN OUT OFF TILTPOS TILT POSITION SENSOR SENSED notsen TELEPOS TELESCOPE POSITION SENSOR SENSED notsen TURN_SW LEFT AND RIGHT TURN SIGNAL SWITCH OFF LEFT RIGHT SHORT LBEAMSW LOW BEAM SWITCH HBEAMSW HIGH BEAM SWITCH PARK_SW PARKING SW LIGHTSN AMBIENT LIGHT DAY NIGHT FLASH FLASH TO PASS SWITCH FTURN_L LEFT AND RIGHT FRONT TURN LAMP R_OPEN, L_OPEN, L/R_OPEN OK RTURN_L LEFT AND RIGHT REAR TURN LAMP R_OPEN, L_OPEN, L/R_OPEN OK TAILLMP LEFT AND RIGHT TAIL LAMP OPEN OK LOWBEAM LOW BEAM LAMP R_OPEN, L_OPEN, L/R_OPEN OK AUTOLMP AUTOLAMP SWITCH ALP_IMP AUTOLAMP ANALOG INPUT 100/255 DOMESW DOME LAMP SWITCH ACTIVE notact PANLDIM PANEL DIM INTENSITY SWITCH 0-100%

3 Page 3 of 16 HOOD_SW HOOD AJAR SWITCH AJAR CLOSED DECKLID DECKLID AJAR SWITCH AJAR CLOSED P_DR_SW RIGHT FRONT DOOR AJAR SWITCH AJAR CLOSED IGN_KEY IGNITION KEY IN/OUT IN OUT IGN_SCI IGNITION SWITCH START RUN OFF ACCSSY WPPRKSW WINDSHIELD WIPER PARK SENSE not PRK PARKED NUMKEYS NUMBER OF IGNITION KEY CODES SUPPORTED BCD (valid range 0-16) DRLKCYL DOOR LOCK CYLINDER ENABLE PATS SYSTEM STATUS ON, OFF FAILSAF PATS SYSTEM STATUS ON, OFF Steering Column/Ignition/Lighting (SCIL) Control Module Active Command Index Active Command Display Action PID LATCH PID LATCH ONE TOUCH WINDOW DOWN AND ACCY DELAY ACCY RLY WARNING LAMPS AND CHIME CHIME INTERIOR COURTESY LAMPS ANTI-THEFT AUTOLMP HIGHBEAM INT LAMPS MIRRORLMP DECKLID RELEASE RELEASE TURN SIGNAL AND MARKER LAMPS LF TURN RF TURN LR TURN RR TURN HEADLAMP CONTROL PARKLAMPS LEFT LOW RIGHT LOW HIGH BEAM DRUN LAMP LF CORNER RF CORNER HORN CONTROL HORN BACKLIGHTING INTENSITY INTENSITY 0%-100% COURTESY LAMP INTENSITY INTENSITY 0%-100% DOOR AJAR SIGNAL DOOR AJAR TRANSMIT SIGNAL COMMAND TRANSMIT BRAKE SYSTEM BRK/SHIFT PARK BRK STEERING COLUMN CONTROL TILT UP ONE SECOND TILT DOWN TIME OUT ONE SECOND TELSCP IN TIME OUT ONE SECOND TIME OUT TELSCPOUT ONE SECOND TIME OUT KEYCODE ERASE TIME SET MINUTES 8-63 MINUTES Message Center (MC) Module Diagnostic Trouble Code (DTC) Index DTC Description DTC Caused By B1201 FUEL SENDER CIRCUIT FAILURE MC GO to Section B1204 FUEL SENDER CIRCUIT SHORT TO GROUND MC GO to Section B1205 EIC SWITCH-1 ASSEMBLY CIRCUIT FAILURE MC GO to Section Action to Take

4 Page 4 of 16 B1208 EIC SWITCH-1 ASSEMBLY CIRCUIT CIRCUIT SHORT TO GROUND MC GO to Section B1209 EIC SWITCH-2 ASSEMBLY CIRCUIT CIRCUIT FAILURE MC GO to Section B1212 EIC SWITCH-2 ASSEMBLY CIRCUIT CIRCUIT SHORT TO GROUND MC GO to Section B1342 ECU DEFECTIVE MC GO to Section B1389 OIL TEMPERATURE SENSOR CIRCUIT FAILURE MC GO to Section B1390 OIL TEMPERATURE SENSOR CIRCUIT SHORT TO GROUND MC GO to Section B1676 BATTERY VOLTAGE OUT OF RANGE MC GO to Section U1027 SCP INVALID OR MISSING DATA FOR ENGINE RPM PCM GO to Section , Inspection and Verification to continue diagnosis. U1043 SCP INVALID OR MISSING DATA FOR TRACTION CONTROL ABS/TC GO to Section , Inspection and Verification to continue diagnosis. U1051 SCP INVALID OR MISSING DATA FOR BRAKES ABS/TC GO to Section , Inspection and Verification to continue diagnosis. U1059 SCP INVALID OR MISSING DATA FOR TRANSMISSION/ TRANSAXLE/PRNDL HEC or PCM GO to Section , Inspection and Verification to continue diagnosis. U1073 SCP INVALID OR MISSING DATA FOR ENGINE COOLANT HEC GO to Section , Inspection and Verification to continue diagnosis. U1123 SCP INVALID OR MISSING DATA FOR ODOMETER ABS/TC GO to Section , Inspection and Verification to continue diagnosis. U1135 SCP INVALID OR MISSING DATA FOR IGNITION SWITCH/STARTER SCIL GO to Section , Inspection and Verification to continue diagnosis. U1136 SCP INVALID OR MISSING DATA FOR TELLTALES PCM REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. U1180 SCP INVALID OR MISSING DATA FOR PERSONALIZATION (MEMORY) FEATURES U1181 SCP INVALID OR MISSING DATA FOR PERSONALIZATION (MEMORY) FEATURES DDM DDM GO to Section , Inspection and Verification to continue diagnosis. GO to Section , Inspection and Verification to continue diagnosis. U1199 SCP INVALID OR MISSING DATA FOR EXTERNAL ACCESS (DOORS) SCIL GO to Section , Inspection and Verification to continue diagnosis. U1211 SCP INVALID OR MISSING DATA FOR RESTRAINTS SCIL GO to Section , Inspection and Verification to continue diagnosis. U1217 SCP INVALID OR MISSING DATA FOR EXTERNAL LAMPS SCIL GO to Section , Inspection and Verification to continue diagnosis. U1218 SCP INVALID OR MISSING DATA FOR EXTERNAL LAMPS SCIL GO to Section , Inspection and Verification to continue diagnosis. U1222 SCP INVALID OR MISSING DATA FOR INTERIOR LAMPS SCIL GO to Section , Inspection and Verification to continue diagnosis. U1430 SCP INVALID OR MISSING DATA FOR FUNCTION READ FUEL SYSTEM PCM REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. U2013 COMPASS MODULE NOT RESPONDING MC GO to Section , Inspection and Verification to continue diagnosis. Message Center (MC) Module Parameter Identification (PIDS) Index Display Description Content CCNT_MC NUMBER OF CONTINUOUS DTCS ON MCM one count per bit EOT_MCM ENGINE OIL TEMPERATURE one deg per bit (-40 to 214 deg) COOLANT ENGINE COOLANT LEVEL OK notok OIL_LVL ENGINE OIL LEVEL OK notok ASDISSW AIR SUSPENSION INHIBIT SWITCH FUELLVL FUEL LEVEL STATUS 100/225 AS_TRIM AIR SUSPENSION WARNING,DRIVER SET, VEH SET, SYS CHECK, TIME/DT, COMPASS, OPN/SHVBAT, SWFEED1 SWITCH FEED ONE STATUS SHORTGRD, RESET, FUEL ECON, FUEL RNG, SWFEED2 SWITCH FEED TWO STATUS TRIP/ODO, OPN/SHVBAT, SHORTGND WFLUID WASHER FLUID LEVEL LOW OK Message Center (MC) Module Active Command Index Active Command Display Action MESSAGE CENTER CONTROL MSGCENTER WARNING LAMPS AND CHIME SBLT LAMP BRAKE SYSTEM T/AOFFLMP O/D INDICATOR CONTROL O/DOFFLMP Symptom Chart SYMPTOM CHART Condition Possible Sources Action Communication With The Steering Column/Ignition/Lighting Control Module Communication With Message Center Module The Shift Interlock System Does t Release/Lock Properly The steering column/ignition/lighting control module. The circuitry. The message center module. The circuitry. A damaged shift lock actuator. A damaged stoplight switch. The steering column/ignition/lighting control module. The circuitry. GO to Pinpoint Test A. GO to Pinpoint Test B. GO to Pinpoint Test C.

5 Page 5 of 16 The Shift Control Is Out Of Proper Gear Relationship The Transmission Control Indicator Lamp Is t Operating Properly A damaged ignition/shifter interlock cable. A loose retainer bracket. The transmission range selector lever linkage misadjusted. A damaged transmission control switch. The warning indicator panel or bulb. The message center module. A damaged powertrain control module (PCM) (12A650). The circuitry. GO to Pinpoint Test D. GO to Pinpoint Test E. Pinpoint Tests PINPOINT TEST A: NO COMMUNICATION WITH THE STEERING COLUMN/IGNITION/LIGHTING (SCIL) CONTROL MODULE CONDITIONS A1 CHECK CIRCUIT 875 (BK/LB) FOR AN OPEN DETAILS/RESULTS/ACTIONS SCIL Connector C288 Measure the resistance between the steering column/ignition/lighting control module connector Pin C288-14, Circuit 875 (BK/LB) and ground. Is the resistance 5 ohms or less? GO to A2. A2 CHECK CIRCUIT 57 (BK) FOR AN OPEN SERVICE Circuit 875 (BK/LB) for an open. REPEAT the Data Link Diagnostic Test. SCIL Connector C287 Measure the resistance between the steering column/ignition/lighting control module connector Pin C287-7, Circuit 57 (BK) and ground. Is the resistance 5 ohms or less? GO to A3. SERVICE Circuit 57 (BK) for an open. REPEAT the Data Link Diagnostic Test. A3 CHECK FOR B+ SUPPLY ON THE STEERING COLUMN/IGNITION/LIGHTING CONTROL MODULE CONNECTOR C287 Measure the voltage at each of the following steering column/ignition/lighting control module connector C287 Pins. te the voltage reading at each pin: C287-14, Circuit 906 (R/O) C287-26, Circuit 19 (LB/R) C287-15, Circuit 1055 (W/LG) C287-11, Circuit 1056 (DB/LG)

6 Page 6 of 16 Is the voltage reading on any circuit B+? GO to the Communication Network Diagnostics in Section to diagnose network concern. For each suspect circuit, REFER to the Electrical Vacuum Troubleshooting Manual, Cell 58, Lighting Control Module and Cell 11, Circuit Protection/Fuse Panel to identify the subsystem in need of service. SERVICE as required. GO to A4. A4 CHECK FOR B+ SUPPLY ON STEERING COLUMN/IGNITION/LIGHTING CONTROL MODULE CONNECTOR C289 SCIL Connector C289 Measure the voltage at each of the following steering column/ignition/lighting control module connector C289 Pins. te the voltage reading at each pin: C289-5, Circuit 1058 (BR/W) C289-6, Circuit 1057 (O/BK) C289-7, Circuit 908 (PK/LG) Is the voltage reading on any circuit B+? GO to the Communication Network Diagnostics in Section to diagnose network concern. For each suspect circuit, REFER to the Electrical Vacuum Troubleshooting Manual, Cell 58, Lighting Control Module and Cell 11, Circuit Protection/Fuse Panel to identify the subsystem in need of service. SERVICE as required. REPEAT the Data Link Diagnostic Test. PINPOINT TEST B: NO COMMUNICATION WITH MESSAGE CENTER MODULE CONDITIONS B1 CHECK THE RADIO OPERATION DETAILS/RESULTS/ACTIONS Operate the radio. Does the radio operate? GO to B2. B2 CHECK CIRCUIT 1002 (BK/PK) FOR B+ GO to Section , Inspection and Verification to diagnose the radio and the possible common power supply concern. Message Center Module Connector C246

7 Page 7 of 16 Measure the voltage at the message center module connector Pin C246-10, Circuit 1002 (BK/PK). Is the voltage B+? GO to B3. B3 CHECK FOR COMMUNICATION TO THE HYBRID ELECTRONIC INSTRUMENT CLUSTER SERVICE Circuit 1002 (BK/PK) for an open. REPEAT the Data Link Diagnostic Test. Data Link Diagnostic Test Was NO RESPONSE/NOT EQUIPPED retrieved for HEC? GO to Section , Inspection and Verification to diagnose the communication concern for hybrid electronic instrument cluster before continuing with the message center communication diagnosis. B4 CHECK CIRCUIT 973 (R) FOR AN OPEN GO to B4. Message Center Module Connector C208 Measure the voltage at the message center module connector Pin C208-27, Circuit 973 (R). Is the voltage reading B+? GO to B5. B5 CHECK CIRCUIT 875 (BK/LB) FOR AN OPEN SERVICE Circuit 973 (R) for an open. REPEAT Data Link Diagnostic Test. Measure the resistance between the message center module connector Pin C208-28, Circuit 875 (BK/LB) and the ground.

8 Page 8 of 16 Is the resistance 5 ohms or less? GO to B6. B6 CHECK CIRCUIT 57 (BK) FOR AN OPEN SERVICE Circuit 875 (BK/LB) for an open. REPEAT Data Link Diagnostic Test. Measure the resistance between the message center module connector Pin C208-36, Circuit 57 (BK) and the ground. Is the resistance 5 ohms or less? GO to the Communication Network Diagnostics in Section to diagnose the network concern. SERVICE Circuit 57 (BK) for an open. REPEAT Data Link Diagnostic Test. PINPOINT TEST C: THE SHIFT INTERLOCK SYSTEM DOES NOT RELEASE/LOCK PROPERLY CONDITIONS C1 CHECK THE BRAKE SHIFT INTERLOCK IN THE ACC POSITION DETAILS/RESULTS/ACTIONS With the brake pedal released, attempt to move the transmission range selector lever to REVERSE. Did the transmission range selector lever move to REVERSE? GO to C3. C2 CHECK FOR THE PROPER OPERATION GO to C2. Press the brake pedal.

9 Page 9 of 16 Move the transmission range selector lever to REVERSE. Did the transmission range selector lever move to REVERSE? The brake shift interlock system is operating properly. CHECK for intermittent or loose connections. CHECK the transmission range selector alignment and the adjustment. REFER to Cable Adjustment in this section. C3 CHECK THE STEERING COLUMN ADJUSTMENT GO to C9. Actuate the steering column adjustment switch to the tilt or the telescope position. Does the steering column adjust? GO to C4. C4 CHECK THE STOPLIGHT SWITCH OPERATION REFER to Section , Inspection and Verification to continue the diagnosis. SCIL PID BOO_SCI Press down on the brake pedal while monitoring PID BOO _SCI. Does the PID BOO_SCI change from OFF to ON when the brake pedal is pressed? GO to C5. C5 CHECK THE STEERING COLUMN/IGNITION/LIGHTING CONTROL MODULE OUTPUT REFER to Section , Inspection and Verification to continue the diagnosis. Brake Shift Interlock Solenoid Connector C360 Measure the voltage at the brake shift interlock connector C360, Circuit 22 (LB/BK).

10 Page 10 of 16 SCIL Control Module Active Command BRAKE SYSTEM Trigger BRK/SHIFT On Is the voltage reading B+? C6 CHECK CIRCUIT 22 (LB/BK) FOR A SHORT TO THE GROUND GO to C8. GO to C6. SCIL Connector C287 Measure the resistance between the steering column/ignition/lighting control module connector Pin C287-9 and ground. Is resistance reading 10 K ohms or less? SERVICE Circuit 22 (LB/BK) for a short to the ground. TEST the system for normal operation. C7 CHECK CIRCUIT 22 (LB/BK) FOR AN OPEN GO to C7. Measure the resistance of Circuit 22 (LB/BK) between the steering column/ignition/lighting control module connector Pin C287-9 and the brake shift interlock solenoid connector C360. Is the resistance 5 ohms or less? REPLACE the steering column/ignition/lighting control module. TEST the system for normal operation. C8 CHECK CIRCUIT 57 (BK) FOR AN OPEN SERVICE Circuit 22 (LB/BK) for an open. TEST the system for normal operation. Measure the resistance between the brake shift interlock solenoid connector C360, Circuit 57 (BK) and the ground.

11 Page 11 of 16 Is the resistance 5 ohms or less? REPLACE the brake shift interlock solenoid. TEST the system for normal operation. C9 CHECK CIRCUIT 22 (LB/BK) FOR POWER SERVICE Circuit 57 (BK) for an open. TEST the system for normal operation. Brake Shift Interlock Solenoid Connector C360 Measure the voltage at the brake shift interlock solenoid connector C360, Circuit 22 (LB/BK). Is the voltage reading B+? GO to C10. C10 CHECK STEERING COLUMN/IGNITION/LIGHTING CONTROL MODULE FOR SHORT TO B+ REPLACE the brake shift interlock solenoid. TEST the system for normal operation. SCIL Connector C287 Measure the voltage at the brake shift interlock solenoid connector C360, Circuit 22 (LB/BK). Is voltage reading B+? SERVICE Circuit 22 (LB/BK) for a short to B+. TEST the system for normal operation. REPLACE the steering column/ignition/lighting control module. TEST the system for normal operation. PINPOINT TEST D: THE SHIFT CONTROL IS OUT OF PROPER GEAR RELATIONSHIP CONDITIONS D1 CHECK THE SHIFT CONTROL LINKAGE DETAILS/RESULTS/ACTIONS Actuate the transmission range selector lever in all the ranges. Observe the linkage during operation. Is the linkage damaged?

12 Page 12 of 16 REPLACE the transmission range selector lever linkage. TEST the system for normal operation. GO to D2. D2 CHECK THE SHIFT CONTROL CABLE Check the transmission shift cable and bracket installation and tightness. Is the transmission shift cable and bracket properly installed? ADJUST the linkage; refer to Cable Adjustment in this section. GO to D3. SERVICE as required. TEST the system for normal operation. D3 CHECK THE LINKAGE/CABLE FOR THE PROPER GEAR RELATIONSHIP Actuate the transmission range selector lever in all ranges. Does the indicator match the transmission range selector lever position? SERVICE is complete. TEST the system for normal operation. REPLACE the damaged linkage/cable. TEST the system for normal operation. PINPOINT TEST E: THE TRANSMISSION CONTROL INDICATOR LAMP IS NOT OPERATING PROPERLY CONDITIONS E1 CHECK THE SAFETY BELT INDICATOR DETAILS/RESULTS/ACTIONS Does the safety belt warning indicator illuminate? GO to E2. E2 CHECK THE CONSOLE PRNDL INDICATOR GO to Section , Inspection and Verification to diagnose the safety belt indicator and the possible shared power source concern. Does the console PRNDL illuminate the gear position? GO to E3. E3 CHECK THE PID O/D_SW GO to Section , Inspection and Verification to diagnose the console PRNDL and the possible shared power source concern. NOTE: Refer to Section for proper procedures on accessing the powertrain control module PIDs. Powertrain Control Module PID O/D_SW Press the transmission control switch several times while monitoring the PID O/D_SW.

13 Page 13 of 16 Does the PID O/D_SW change from OFF to ON? GO to E8. E4 CHECK CIRCUIT 298 (P/O) FOR B+ GO to E4. Console PRNDL Connector C319 Measure the voltage at the console PRNDL connector Pin C319-10, Circuit 298 (P/O). Is the voltage reading B+? GO to E5. E5 CHECK THE INPUT TO THE POWERTRAIN CONTROL MODULE SERVICE Circuit 298 (P/O) for an open. TEST the system for normal operation. Console PRNDL Connector C319 Powertrain Control Module Connector C291 EEC V 104-Pin Breakout Box To Harness Only Measure the voltage between the breakout box Pin 29, Circuit 224 (T/W) and Pin 77, Circuit 57 (BK).

14 Page 14 of 16 Press the transmission control switch several times while monitoring the voltmeter. Does the voltage cycle as the transmission control switch is pressed? REPLACE the powertrain control module. TEST the system for normal operation. E6 CHECK CIRCUIT 224 (T/W) FOR SHORT TO GROUND GO to E6. Console PRNDL Connector C319 Measure the resistance between the console PRNDL connector Pin C319-11, Circuit 224 (T/W) and the ground. Is the resistance 10 K ohms or less? SERVICE Circuit 224 (T/W) for a short to the ground. TEST the system for normal operation. E7 CHECK CIRCUIT 224 (T/W) FOR OPEN GO to E7. Measure the resistance of Circuit 224 (T/W) between the console PRNDL connector Pin C and the breakout box Pin 29. Is the resistance 5 ohms or less? REPLACE the transmission control switch. TEST the system for normal operation.

15 Page 15 of 16 E8 CHECK THE DTCs SERVICE Circuit 224 (T/W) for an open. TEST the system for normal operation. Retrieve Message Center Continuous And On-Demand DTCs Is the DTC U1136 retrieved? REPLACE the powertrain control module. TEST the system for normal operation. E9 CHECK THE MESSAGE CENTER GO to E9. Message Center Active Command O/D INDICATOR CONTROL Trigger O/DOFFLMP on Does the O/D OFF indicator illuminate? E10 CHECK THE MESSAGE CENTER FOR AN INTERNAL SHORT REPLACE the message center. TEST the system for normal operation. GO to E10. Message Center Connector C246 Connect a jumper wire between the message center connector Pin C246-6, Circuit 911 (W/LG) and the ground. Does the O/D OFF indicator illuminate? REPLACE the message center. TEST the system for normal operation. E11 CHECK CIRCUIT 911 (W/LG) FOR AN OPEN GO to E11.

16 Page 16 of 16 Warning Indicator Panel Connector C238 Measure the resistance of Circuit 911 (W/LG) between the warning indicator panel connector Pin C and the message center indicator connector Pin C Is the resistance 5 ohms or less? GO to E12. E12 CHECK THE BULB SERVICE Circuit 911 (W/LG) for an open. TEST the system for normal operation. O/D OFF Indicator Bulb Measure the resistance between the bulb terminals. Is the bulb OK? REPLACE the warning indicator panel. TEST the system for normal operation. REPLACE the O/D OFF indicator bulb. TEST the system for normal operation.