SELF-DIAGNOSTIC SYSTEM
| CAUTION | When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in the GENERAL INFORMATION section before disconnecting battery. |
PRETEST INSPECTION
Before proceeding with diagnosis, the following precautions must be followed
- Vehicle must have a fully charged battery and functional charging system.
- Always start at SYMPTOM ID TEST 1A - IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS. Starting with any other test may result in incorrect results.
- Only perform test steps indicated. It is NOT necessary to perform all steps in a test.
- VEHICLE COMMUNICATIONS should only be used when instructed to do so by another test. Always start at SYMPTOM ID TEST 1A.
- Turn ignition switch to OFF position before disconnecting or connecting components.
- Use extreme care when connecting or disconnecting wiring during testing to prevent accidental grounding or shorting.
- DO NOT use a test light in place of a voltmeter.
- Always disconnect scan tool after use.
- Always disconnect scan tool before charging battery.
- Always perform appropriate verification test after repairs are made.
DIAGNOSTIC PROCEDURE
Note. Before proceeding with diagnosis, certain precautions must be followed. See PRETEST INSPECTION under SELF-DIAGNOSTIC SYSTEM.
Diagnostic test procedures are designed to detect system faults as quickly as possible. Body Diagnostic Trouble Codes (DTCs) are accessed through Data Link Connector (DLC). Chrysler's Diagnostic Readout Box (DRB) scan tool or generic scan tool, is used to access information from DLC.
A 1997 diagnostic program cartridge, scan tool, body diagnostics cable, hand-held oil pressure gauge, jumper wires, and digital volt-ohmmeter will be needed for testing. Proceed to SYMPTOM ID TEST 1A .
GENERIC SCAN TOOL
Self-diagnostic tests are written specifically for Chrysler's Diagnostic Readout Box (DRB) scan tool. A generic scan tool can be used, but may not be capable of performing all necessary test functions.
DRB SCAN TOOL
Refer to DRB scan tool instructions to read and clear fault messages, and when performing other scan tool function.
DRB scan tool is grounded through DLC connector. Only one volt/ohmmeter test lead is required when instructed by testing to measure voltage or resistance on specified circuit. DRB scan tool volt/ohmmeter should only be used when body control computer tests require the use of this option.
SYMPTOM ID TEST 1A - IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS .
Note. Perform a visual inspection before proceeding with this test.
- Connect scan tool to Data Link Connector (DLC). DLC is a 16-pin connector located on left side kick panel, just above hood release. Turn ignition switch to ON position. If scan tool display is not blank, go to next step. If scan tool display is blank, see «TEST 1A»(ref-123786-S16432037222001101500000) under VEHICLE COMMUNICATIONS TESTS.
- Using scan tool, select BODY SYSTEM, then BODY COMPUTER. Scan tool will perform a CCD bus test. If scan tool displays BUS FAILED, see «TEST 1A»(ref-123786-S16432037222001101500000) under VEHICLE COMMUNICATIONS TESTS. If scan tool displays NO RESPONSE, see «TEST 11A»(ref-123786-S03568625872001101500000) under VEHICLE COMMUNICATIONS TESTS. If scan tool does not display BUS FAILED or NO RESPONSE, go to next step.
- Using scan tool, select INPUT/OUTPUT and read IGN RUN/START status. If scan tool displays OPEN, go to «TEST 11A»(ref-123786-S03568625872001101500000) under VEHICLE COMMUNICATIONS TESTS. If scan tool does not display OPEN, go to next step.
- Using scan tool, select READ DTCs. If any fault messages are present, go to «SYMPTOM ID TEST 1B - IDENTIFYING FAULT MESSAGES»(ref-123786-S07350373772001101500000) . If no messages are present, go to «SYSTEM DIAGNOSTIC TEST DIRECTORY»(ref-123786-S42308258812001101500000) for specific diagnosis. Problems listed are diagnosed using a scan tool. These problems may occur separately or in various combinations. When diagnosing a system with many apparent problems, a sequence of tests may be required. At the beginning of each test a note will indicate which test to perform first. After repairs, ensure problem(s) or failure(s) have been corrected.
| Suspected System | Perform |
|---|---|
| Chime System | CHIME TEST 1A |
| Compass/Mini-Trip Computer | CMTC TEST 1A |
| Door Ajar System | DOOR AJAR TEST 1A |
| Exterior Lighting System | EXTERIOR LIGHT TEST 1A |
| Interior Lighting System | INTERIOR LIGHT TEST 1A |
| Instrument Cluster | INSTRUMENT CLUSTER TEST 1A |
| Power Door Lock System | POWER DOOR LOCK TEST 1A |
| Vehicle Theft Security System | VTSS TEST 1A |
| Windshield Wiper System | WINDSHIELD WIPER TEST 1A |
| (1) For problems or failures relating to A/C system, see A/C-HEATER SYSTEM article in the AIR CONDITIONING & HEAT section. For problems or failures relating to air bag system, see AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section. | |
| (1) | For problems or failures relating to A/C system, see A/C-HEATER SYSTEM article in the AIR CONDITIONING & HEAT section. For problems or failures relating to air bag system, see AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section. |
SYSTEM DIAGNOSTIC TEST DIRECTORY (1)
SYMPTOM ID TEST 1B - IDENTIFYING FAULT MESSAGES
Note. Perform SYMPTOM ID TEST 1A before proceeding with this test.
If scan tool displays fault messages in TEST 1A, record messages displayed and perform appropriate test(s). See SCAN TOOL MESSAGE DIRECTORY table.
| Scan Tool Display | Perform |
|---|---|
| BATTERY POWER TO MODULE DISCONNECTED | (1) |
| DRIVER DOOR DISARM SWITCH INPUT | VTSS TEST 11A |
| EATX PRNDL MESSAGE TEST FAILED | (1) |
| EEPROM CHECKSUM FAILURE | (2) Replace BCM |
| FUEL LEVEL SENDING CIRCUIT ERROR | INSTRUMENT CLUSTER TEST 3A |
| IGNITION VOLTAGE TOO LOW | (1) |
| INTERNAL MODULE TESTS FAILED | (1) Replace BCM |
| PANEL LAMP PWM OUTPUT FAILURE | INSTRUMENT CLUSTER TEST 5A |
| PASSENGER DOOR DISARM SWITCH INPUT | VTSS TEST 12A |
| PCM DISTANCE MESSAGE NOT RECEIVED | (1) |
| WIPER PARK SWITCH FAILURE | WINDSHIELD WIPER TEST 6A |
| (1) See VEHICLE COMMUNICATIONS TESTS . (2) After replacing Body Control Module (BCM), perform TEST VER-1A - VERIFICATION PROCEDURE . | |
| (1) | See VEHICLE COMMUNICATIONS TESTS . |
| (2) | After replacing Body Control Module (BCM), perform TEST VER-1A - VERIFICATION PROCEDURE . |
SCAN TOOL MESSAGE DIRECTORY
CHIME TEST 1A - IDENTIFYING CHIME SYSTEM PROBLEMS
Note. Perform SYMPTOM ID TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
Diagnosis of chime system is separated into 6 categories. Identify problem(s) listed in CHIME SYSTEM DIAGNOSTIC TEST DIRECTORY table and perform indicated test(s).
| Problem | Perform |
|---|---|
| Chime Inoperative At All Times | CHIME TEST 2A |
| Chime Inoperative With Exterior Lights On | CHIME TEST 3A |
| Chime Inoperative With Seat Belt Unfastened | CHIME TEST 4A |
| Chime Sounds With Seat Belt Fastened | CHIME TEST 5A |
| Chime Inoperative With Key In Ignition | CHIME TEST 6A |
| Chime Sounds With Driver Door Open & Key Removed From Ignition | CHIME TEST 7A |
CHIME SYSTEM DIAGNOSTIC TEST DIRECTORY
CHIME TEST 2A - CHIME INOPERATIVE AT ALL TIMES
Note. Perform CHIME TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Turn ignition switch to ON position. Close all doors. Using scan tool, actuate chime test. If chime sounds, go to next step. If chime does not sound, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 18)
- Using scan tool, stop chime test actuation. Read key-in ignition switch status. If scan tool displays KEY-IN IGN: CLOSED, go to next step. If scan tool does not display KEY-IN IGN: CLOSED, go to «CHIME TEST 6A»(ref-123786-S10537928682001101500000).
- Ensure left front seat belt is unfastened and fully retracted. Using scan tool, read seat belt switch status. If scan tool displays SEAT BELT: CLOSED, go to next step. If scan tool does not display SEAT BELT: CLOSED, go to «CHIME TEST 5A»(ref-123786-S39120471642001101500000).
- Turn parking lights on. Using scan tool, read parking lights status. If scan tool does not display PARK LAMPS: ON, go to «CHIME TEST 3A»(ref-123786-S26440572932001101500000). If scan tool displays PARK LAMPS: ON, replace BCM.
Locating BCM/Junction Block. Scheme 18
CHIME TEST 3A - CHIME INOPERATIVE WITH EXTERIOR LIGHTS ON
Note. Perform CHIME TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Turn headlights on. Using scan tool, read parking light status. If scan tool displays PARK LAMPS: ON, go to step 4). If scan tool does not display PARK LAMPS: ON, go to next step.
- Turn headlights off. Locate junction block 18-pin connector on opposite side from BCM. (Scheme 19) DO NOT disconnect. Turn headlight switch on. Using scan tool in voltmeter mode, backprobe 18-pin connector terminal No. 4 (Black/Yellow wire) and check voltage. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Black/Yellow wire.
- Turn ignition off and disconnect scan tool probe. Disconnect BCM from junction block and ensure connector is clean and not damaged. (Scheme 18)and (Scheme 20). Using scan tool in voltmeter mode, measure voltage at connector No. 8 on BCM internal 12-pin connector. If voltage is more than 10 volts, replace BCM. If voltage is 10 volts or less, replace junction block.
- Open left front door. Using scan tool, read left front door ajar switch status. If scan tool displays LF DOOR AJAR: CLOSED, replace BCM. If scan tool does not display LF DOOR AJAR: CLOSED, go to «DOOR AJAR TEST 3A»(ref-123786-S16967384562001101500000).
Locating BCM/Junction Block Connectors. Scheme 19
Identifying BCM/Junction Block Components & Terminals. Scheme 20
CHIME TEST 4A - CHIME INOPERATIVE WITH SEAT BELT UNFASTENED
Note. Perform CHIME TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Ensure left front seat belt is unfastened and fully retracted. Using scan tool, read seat belt switch status. If scan tool does not display SEAT BELT: CLOSED, go to next step. If scan tool displays SEAT BELT: CLOSED, replace BCM.
- Disconnect left seat belt switch connector and ensure connector is clean and not damaged. Connect a jumper wire between seat belt switch connector terminals No. 1 (Light Green/Red wire) and No. 2 (Black wire). Using scan tool, read seat belt switch status. If scan tool does not display SEAT BELT: CLOSED, go to next step. If scan tool displays SEAT BELT: CLOSED, replace left seat belt switch.
- Connect jumper wire between ground and terminal No. 1 (Light Green/Red wire) on left seat belt switch connector. Using scan tool, read seat belt switch status. If scan tool does not display SEAT BELT: CLOSED, go to next step. If scan tool displays SEAT BELT: CLOSED, repair open Black wire.
- Locate BCM 20-pin connector. (Scheme 19)in CHIME TEST 3A. DO NOT disconnect connector. Backprobing BCM 20-pin connector, connect a jumper wire between terminal No. 5 (Light Green/Red wire) and ground. Using scan tool, read seat belt switch status. If scan tool displays SEAT BELT: CLOSED, repair open Light Green/Red wire. If scan tool does not display SEAT BELT: CLOSED, replace BCM.
CHIME TEST 5A - CHIME SOUNDS WITH SEAT BELT FASTENED
Note. Perform CHIME TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Fasten left front seat belt. Using scan tool, read seat belt switch status. If scan tool does not display SEAT BELT: OPEN, go to next step. If scan tool displays SEAT BELT: OPEN, system is operational with no problems found.
- Disconnect left seat belt switch connector and ensure connector is clean and not damaged. Using scan tool, read seat belt switch status. If scan tool displays SEAT BELT: CLOSED, go to next step. If scan tool does not display SEAT BELT: CLOSED, replace left seat belt switch.
- Turn ignition off. Disconnect BCM 20-pin connector and ensure connector is clean and not damaged. (Scheme 19)in CHIME TEST 3A. Using external ohmmeter, check resistance at terminal No. 5 (Light Green/Red wire) on BCM 20-pin connector. If resistance is 5 ohms or greater, replace BCM. If resistance is less than 5 ohms, repair short to ground in Light Green/Red wire.
CHIME TEST 6A - CHIME INOPERATIVE WITH KEY IN IGNITION
Note. Perform CHIME TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Turn ignition on and open left front door. Using scan tool, read left front door ajar status. If scan tool does not display LF DOOR AJAR: CLOSED, go to «DOOR AJAR TEST 3A»(ref-123786-S16967384562001101500000). If scan tool displays, LF DOOR AJAR: CLOSED, go to next step.
- Using scan tool, read key-in ignition status. If scan tool does not display KEY-IN IGN: CLOSED, go to next step. If scan tool displays KEY-IN IGN: CLOSED, replace BCM.
- Disconnect key-in ignition switch 2-pin connector and ensure connector is clean and not damaged. Locate 2-pin connector, next to ignition switch 10-pin connector, behind steering wheel. Using external ohmmeter, check resistance at terminal No. 2 (Black wire) on key-in ignition switch 2-pin connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open Black wire.
- Connect a jumper wire between key-in ignition switch 2-pin connector terminals. Using scan tool, read key-in ignition status. If scan tool does not display KEY-IN IGN: CLOSED, go to next step. If scan tool displays KEY-IN IGN: CLOSED, replace ignition switch.
- Locate instrument panel 22-pin connector at BCM. (Scheme 18)in CHIME TEST 2A. (Scheme 19)in CHIME TEST 3A. DO NOT disconnect connector. Backprobe a jumper wire between ground and terminal No. 17 (Light Blue wire) on instrument panel 22-pin connector. Using scan tool, read key-in ignition status. If scan tool displays KEY-IN IGN: CLOSED, repair open Light Blue wire. If scan tool does not display KEY-IN IGN: CLOSED, replace BCM.
CHIME TEST 7A - CHIME SOUNDS WITH DRIVER DOOR OPEN & KEY REMOVED FROM IGNITION
Note. Perform CHIME TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Remove key from ignition. Ensure exterior lights are off and left front door is open. If chime sounds, go to next step. If chime does not sound, system is operational with no problems found.
- Using scan tool, read key-in ignition status. If scan tool displays KEY-IN IGN: CLOSED, go to next step. If scan tool does not display KEY-IN IGN: CLOSED, replace BCM.
- Disconnect key-in ignition switch 2-pin connector and ensure connector is clean and not damaged. Locate 2-pin connector next to ignition switch 10-pin connector, behind steering wheel. Using scan tool, read key-in ignition status. If scan tool displays KEY-IN IGN: CLOSED, go to next step. If scan tool does not display KEY-IN IGN: CLOSED, replace ignition switch.
- Disconnect instrument panel 22-pin connector at BCM. (Scheme 19)in CHIME TEST 3A. Ensure connector is clean and not damaged. Using external ohmmeter, measure resistance at terminal No. 17 (Light Blue wire) on instrument panel 22-pin connector. If resistance is more than 5 ohms, replace BCM. If resistance is less than 5 ohms, repair short to ground in Light Blue wire.
CMTC TEST 1A - IDENTIFYING COMPASS/MINI-TRIP PROBLEMS
Note. Perform SYMPTOM ID TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
Note. For CMTC wiring diagram, see INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.
- If Compass/Mini-Trip Computer (CMTC) display is blank or displays CCD, go to «CMTC TEST 7A»(ref-123786-S01414515342001101500000) .
- Perform CMTC auto self test. Ensure ignition is off. Press and hold both CMTC buttons. Turn ignition on and release buttons. If any display segments fail to illuminate, replace CMTC module. If CMTC displays FAILED, replace CMTC module.
- Diagnosis of CMTC system is separated into 10 faults. Identify fault(s) listed in CMTC SYSTEM DIAGNOSTIC TEST DIRECTORY table and perform indicated test(s). CMTC SYSTEM DIAGNOSTIC TEST DIRECTORY Problem Perform Outside Temperature CMTC Displays SC «CMTC TEST 2A»(ref-123786-S39032876572001101500000) CMTC Displays OC «CMTC TEST 3A»(ref-123786-S10615483372001101500000) Incorrect Reading (5 Degree Variation) «CMTC TEST 4A»(ref-123786-S22544390462001101500000) Average MPG Or Fuel Economy (1) «CMTC TEST 5A»(ref-123786-S40739810472001101500000) Trip Odometer Inoperative Or Wrong «CMTC TEST 5A»(ref-123786-S40739810472001101500000) Distance To Empty Inoperative Or Wrong «INSTRUMENT CLUSTER TEST 3A»(ref-123786-S11830783902001101500000) Elapsed Time Inoperative Or Wrong «CMTC TEST 6A»(ref-123786-S06243297752001101500000) (1) Average MPG or fuel economy is inoperative or wrong. MPG calculations are only accurate to within 10 miles.
- If CMTC fails to respond to instrument cluster dimming, replace CMTC module. If CMTC switch is inoperative, replace CMTC module. If compass is inoperative or wrong, locate open area away from large metal objects. Turn ignition on. Press and hold compass/temperature button until CAL is displayed. Driving slowly, perform 3 complete circles. CAL lamp will turn off and compass will be calibrated. If compass goes blank, replace CMTC module.
CMTC TEST 2A - COMPASS/MINI-TRIP COMPUTER DISPLAYING "SC"
Note. Perform CMTC TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
Note. For CMTC wiring diagram, see INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Disconnect ambient temperature/battery temperature sensor connector. Sensor is located behind front bumper (right center). Observe CMTC display. If CMTC displays OC, replace ambient temperature sensor. If CMTC does not display OC, go to next step.
- Turn ignition off. Disconnect Powertrain Control Module (PCM) connector. Using external ohmmeter mode, measure resistance between ground and terminal No. 2 (Violet/Light Green wire) on ambient temperature/battery temperature sensor connector. If resistance is less than 5 ohms, repair Violet/Light Green wire between PCM and ambient temperature sensor for short to ground. If resistance is 5 ohms or greater, go to next step.
- Using external ohmmeter, measure resistance between ambient temperature/battery temperature sensor connector terminals. If resistance is less than 1000 ohms, repair Violet/Light Green wire for short to Black/Light Blue wire. If resistance is 1000 ohms or greater, replace CMTC module.
CMTC TEST 3A - COMPASS/MINI-TRIP COMPUTER DISPLAYING "OC"
Note. Perform CMTC TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle at least 3 miles (at greater than 25 MPH) to update CMTC and perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
Note. For CMTC wiring diagram, see INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Disconnect ambient temperature/battery temperature sensor connector. Sensor is located behind front bumper (right center). Connect jumper wire between connector terminals. Turn ignition on. Observe CMTC display. If CMTC displays SC, replace ambient temperature/battery temperature sensor. If CMTC does not display SC, go to next step.
- Turn ignition off. Disconnect jumper wire. Disconnect Powertrain Control Module (PCM) Gray connector. Connect jumper wires between ground and each terminal of ambient temperature/battery temperature sensor harness connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 52 on PCM harness connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open sensor signal circuit between PCM and ambient temperature/battery temperature sensor.
- With jumper wires still connected, measure resistance at terminal No. 43 (Black/Light Blue wire) on PCM connector. If resistance is less than 5 ohms, replace CMTC module. If resistance is 5 ohms or greater, repair open Black/Light Blue wire between PCM and ambient temperature/battery temperature sensor.
CMTC TEST 4A - INCORRECT AMBIENT TEMPERATURE READING
Note. Perform CMTC TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle at least 3 miles (at greater than 25 MPH) to update CMTC and perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
Note. For CMTC wiring diagram, see INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Using scan tool, select ENGINE, then SENSORS. Select AMBIENT/BAT TMP DEG. Compare scan tool reading with actual outside temperature. If both temperature readings match, replace CMTC module. If both temperature readings do not match, go to next step.
- Disconnect and remove ambient temperature/battery temperature sensor. Sensor is located behind front bumper, right of center. Using external ohmmeter, measure resistance between sensor terminals and compare with AMBIENT TEMPERATURE SENSOR SPECIFICATIONS table. Go to next step. AMBIENT TEMPERATURE SENSOR SPECIFICATIONS Ambient Temperature k/ohms 32°F (0°C) 29.3-36.0 50°F (10°C) 18.0-22.0 68°F (20°C) 11.4-13.6 77°F (25°C) 9.1-10.8 86°F (30°C) 7.4-8.7 104°F (40°C) 4.9-5.7 122°F (50°C) 3.3-3.8
- If resistance measurement does not correspond with AMBIENT TEMPERATURE SENSOR SPECIFICATIONS table, replace sensor. If sensor is within specification, turn ignition off. Close all vehicle doors and ensure all lights are off. Wait one minute.
- Using external ohmmeter mode, measure resistance between ground and terminal No. 1 (Black/Light Blue wire) on ambient temperature/battery temperature sensor connector. If resistance is less than 10 ohms, go to «CMTC TEST 4B»(ref-123786-S21282946112001101500000) . If resistance is 5 ohms or greater, go to next step.
- Disconnect Powertrain Control Module (PCM) Gray connector. Using external ohmmeter, measure resistance between terminal No. 43 on PCM connector and terminal No. 2 (Black/Light Blue wire) on ambient temperature/battery temperature sensor harness connector. If resistance is less than 5 ohms, replace PCM. If resistance is 5 ohms or greater, repair open Black/Light Blue wire.
CMTC TEST 4B - INCORRECT AMBIENT TEMPERATURE READING
Note. Perform CMTC TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle at least 3 miles (at greater than 25 MPH) to update CMTC and perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
Note. For CMTC wiring diagram, see INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Connect ambient temperature/battery temperature sensor. Disconnect Powertrain Control Module (PCM) Gray connector. Using external ohmmeter, measure resistance between terminals No. 43 and No. 52 on PCM harness connector.
- Compare with «AMBIENT TEMPERATURE SENSOR SPECIFICATIONS»(ref-123786-S10790992412001101500000) table in CMTC TEST 4A. If resistance measurement does not correspond with AMBIENT TEMPERATURE SENSOR SPECIFICATIONS table, go to next step. If sensor is within specification, replace CMTC module.
- Disconnect ambient temperature/battery temperature sensor. Using external ohmmeter, measure resistance between ground and terminal No. 1 (Black/Light Blue wire) on sensor connector. If resistance is less than 500 k/ohms, repair Black/Light Blue wire for partial short to ground. If resistance is 500 k/ohms or greater, go to next step.
- Move ohmmeter lead to terminal No. 2 (Violet/Light Green wire) on sensor connector. If resistance is less than 500 k/ohms, repair Violet/Light Green wire for partial short to ground. If resistance is 500 k/ohms or greater, repair Violet/Light Green wire for short to Black/Light Blue wire.
CMTC TEST 5A - INCORRECT MILEAGE OR DISTANCE PROBLEMS
Note. Perform CMTC TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle at least 3 miles (at greater than 25 MPH) to update CMTC and perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
Note. For CMTC wiring diagram, see INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Turn ignition on. Using scan tool, read engine information under monitor display. If scan tool displays NO RESPONSE, see «VEHICLE COMMUNICATIONS TESTS»(ref-123786-S29515023562001101500000) . If scan tool does not display NO RESPONSE, go to next step.
- Observe TP sensor while depressing accelerator pedal. If TP sensor percent does not increase while operating throttle, see TESTS W/CODES in ENGINE PERFORMANCE. If TP sensor percent does increase, go to next step.
- Raise and support vehicle. Start vehicle and place transmission in Drive. Using scan tool, read vehicle speed signal. Increase vehicle speed and observe scan tool. If speed signal changes, system is currently operating correctly. If speed signal does not change, vehicle speed signal may be at fault. See TESTS W/CODES article in the ENGINE PERFORMANCE section.
CMTC TEST 6A - ELAPSED TIME INOPERATIVE OR WRONG
Note. Perform CMTC TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
Note. For CMTC wiring diagram, see INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
Cycle ignition switch off, then on. Observe instrument cluster warning lights. If lights illuminate, then go off, replace Body Control Module (BCM). BCM is located with junction block. (Scheme 18)in CHIME TEST 2A. If lights do not illuminate, see VEHICLE COMMUNICATIONS TESTS.
CMTC TEST 7A - BLANK DISPLAY OR "CCD" DISPLAYED
Note. Perform CMTC TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
Note. For CMTC wiring diagram, see INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Ensure ignition is off. Disconnect CMTC connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 5 (Black/Violet wire) on CMTC harness connector. If resistance is less than 10 ohms, go to next step. If resistance is 10 ohms or greater, repair open Black/Violet wire.
- Turn ignition on. Using scan tool in voltmeter mode, measure voltage at terminal No. 6 (Light Green/Red wire) on CMTC harness connector. If voltage is 10 volts or less, repair open Light Green/Red wire between CMTC module and fuse No. 9 in Power Distribution Center (PDC). If voltage is greater than 10 volts, go to next step.
- Connect jumper wire between ground and terminal No. 2 (White/Black wire) on CMTC module connector. Using scan tool, read CCD bus status. If scan tool displays BUS SHORTED TO GROUND, go to next step. If scan tool does not display BUS SHORTED TO GROUND, repair open White/Black wire.
- Move jumper wire to terminal No. 1 (Violet/Pink wire) on CMTC module connector. Using scan tool, read CCD bus status. If scan tool displays BUS SHORTED TO GROUND, replace CMTC module. If scan tool does not display BUS SHORTED TO GROUND, repair open Violet/Pink wire.
DOOR AJAR TEST 1A - IDENTIFYING DOOR AJAR SYSTEM PROBLEM
Note. Perform SYMPTOM ID TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Body Control Module (BCM) monitors 4 door ajar switches. When switch is closed (door open), BCM will sound chime once and display DOOR message in odometer Vacuum Fluorescent (VF) display. If all doors are closed and properly aligned, go to next step. If door(s) are out of alignment, repair door alignment and ensure door(s) close(s) properly.
- If VF displays DECK, go to «INSTRUMENT CLUSTER TEST 19A»(ref-123786-S42642839242001101500000) . Using scan tool, select BODY SYSTEM, and then INPUTS/OUTPUTS and read left front door ajar and door ajar switch status. Open and close each door one at a time. If switch status toggles from OPEN to CLOSED as each door is opened, door ajar circuits are operational with no problems found. If switch status does not toggle from OPEN to CLOSED as each door is opened, go to next step.
- If door ajar switch status is CLOSED when door is closed, perform appropriate shorted circuit test. See DOOR AJAR SYSTEM DIAGNOSTIC TEST DIRECTORY table. If door ajar switch status is OPEN when door is open, perform appropriate open circuit test. See DOOR AJAR SYSTEM DIAGNOSTIC TEST DIRECTORY table.
Note. A shorted LF DOOR AJAR circuit will only affect left front door. One shorted passenger door ajar circuit will affect all passenger door circuits.
| Problem | Perform |
|---|---|
| Left Front Door Ajar Short Circuit | DOOR AJAR TEST 2A |
| Left Front Door Ajar Open Circuit | DOOR AJAR TEST 3A |
| Door Ajar Short Circuit | DOOR AJAR TEST 4A |
| Right Front Door Ajar Open Circuit | DOOR AJAR TEST 5A |
| Right Rear Door Ajar Open Circuit | DOOR AJAR TEST 6A |
| Left Rear Door Ajar Open Circuit | DOOR AJAR TEST 7A |
DOOR AJAR SYSTEM DIAGNOSTIC TEST DIRECTORY
DOOR AJAR TEST 2A - LEFT FRONT DOOR AJAR SHORT CIRCUIT
Note. Perform DOOR AJAR TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Disconnect left front door ajar switch and ensure connector is clean and not damaged. Using scan tool, read left front door ajar switch status. If scan tool displays LF DOOR AJAR: CLOSED, go to next step. If scan tool does not display LF DOOR AJAR: CLOSED, replace left front door ajar switch.
- On JX models, disconnect Seat Belt Control Module (SBCM) connector under center console. (Scheme 21) Using scan tool, read left front door ajar switch status. If scan tool displays LF DOOR AJAR: CLOSED, go to next step. If scan tool does not display LF DOOR AJAR: CLOSED, replace SBCM.
- On all models, disconnect BCM 20-pin connector at junction block and ensure connector is clean and not damaged. (Scheme 19)in CHIME TEST 3A. Using scan tool, read left front door ajar switch status. If scan tool displays LF DOOR AJAR: CLOSED, replace BCM. If scan tool does not display LF DOOR AJAR: CLOSED, repair short to ground in left front door ajar switch Tan wire.
Locating Seat Belt Control Module. Scheme 21
DOOR AJAR TEST 3A - LEFT FRONT DOOR AJAR OPEN CIRCUIT
Note. Perform DOOR AJAR TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Disconnect left front door ajar switch and ensure connector is clean and not damaged. Ensure left front door ajar switch ground strap is clean and not damaged. Repair or replace ground strap as necessary. If ground strap is okay, go to next step.
- Connect a jumper wire between left front door ajar switch connector (Tan wire) and ground. Using scan tool, read left front door ajar switch status. If scan tool displays LF DOOR AJAR: CLOSED, replace left front door ajar switch. If scan tool does not display LF DOOR AJAR: CLOSED, go to next step.
- Disconnect jumper wire. Locate BCM 20-pin connector at junction block. (Scheme 19)in CHIME TEST 3A. DO NOT disconnect connector. Backprobe a jumper wire between ground and terminal No. 7 (Tan wire) on BCM 20-pin connector. Using scan tool, read left front door ajar switch status. If scan tool displays LF DOOR AJAR: CLOSED, repair open in Tan wire between left front door ajar switch and BCM. If scan tool does not display LF DOOR AJAR: CLOSED, go to next step.
- Turn ignition off. Disconnect BCM 20-pin connector at junction block. Inspect terminal No. 7. Repair as needed. If terminal is okay, replace BCM.
DOOR AJAR TEST 4A - RIGHT FRONT DOOR AJAR SHORT CIRCUIT
Note. Perform DOOR AJAR TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- If vehicle is JX model, go to «DOOR AJAR TEST 4B»(ref-123786-S32409488262001101500000). If vehicle is not JX model, go to next step.
- Disconnect right front door ajar switch connector and ensure connector is clean and not damaged. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, go to next step. If scan tool does not display DOOR AJAR: CLOSED, replace right front door ajar switch.
- Disconnect right rear door ajar switch connector and ensure connector is clean and not damaged. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, go to next step. If scan tool does not display DOOR AJAR: CLOSED, replace right rear door ajar switch.
- Disconnect left rear door ajar switch connector and ensure connector is clean and not damaged. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, go to next step. If scan tool does not display DOOR AJAR: CLOSED, replace left rear door ajar switch.
- Disconnect BCM 20-pin connector. (Scheme 19)in CHIME TEST 3A. Using scan tool, read door ajar switch status. If scan tool does not display DOOR AJAR: CLOSED, go to next step. If scan tool displays DOOR AJAR: CLOSED, replace BCM.
- Using external ohmmeter, measure resistance between ground and terminal No. 16 (Tan/Orange wire) on BCM 20-pin connector. If resistance is 5 ohms or greater, go to next step. If resistance is less than 5 ohms, repair Tan/Orange wire for short to ground.
- Measure resistance between ground and terminal No. 16 (Tan/Pink wire) on BCM 20-pin connector. If resistance is 5 ohms or greater, repair Tan wire (left rear door ajar switch sense circuit) for short to ground. If resistance is less than 5 ohms, repair Tan/Pink wire short to ground.
DOOR AJAR TEST 4B - RIGHT FRONT DOOR AJAR SHORT CIRCUIT
Note. Perform DOOR AJAR TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Disconnect right front door ajar switch connector. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, go to next step. If scan tool does not display DOOR AJAR: CLOSED, replace right front door ajar switch.
- Disconnect Seat Belt Control Module (SBCM) connector under center console. (Scheme 21)in DOOR AJAR TEST 2A. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, go to next step. If scan tool does not display DOOR AJAR: CLOSED, replace SBCM.
- Disconnect BCM 20-pin connector. (Scheme 19)in CHIME TEST 3A. Using scan tool, read door ajar switch status. If scan tool does not display DOOR AJAR: CLOSED, go to next step. If scan tool displays DOOR AJAR: CLOSED, replace BCM.
- Using external ohmmeter, measure resistance between ground and terminal No. 17 (Tan/Pink wire) on BCM 20-pin connector. If resistance is 5 ohms or greater, repair Tan/Red wire between SBCM terminal No. 3 and BCM terminal No. 6 for short to ground. If resistance is less than 5 ohms, repair Tan/Pink wire short to ground.
DOOR AJAR TEST 5A - RIGHT FRONT DOOR AJAR OPEN CIRCUIT
Note. Perform DOOR AJAR TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Disconnect right front door ajar switch and ensure connector is clean and not damaged. Ensure right front door ajar switch ground strap is clean and not damaged. Repair or replace ground strap as necessary. If ground strap is okay, go to next step.
- Connect a jumper wire between right front door ajar switch connector Tan/Orange wire (JA models) or Tan/Pink wire (JX models) and ground. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, replace right front door ajar switch. If scan tool does not display DOOR AJAR: CLOSED, go to next step.
- Disconnect jumper wire. Locate BCM 20-pin connector at junction block. (Scheme 19)in CHIME TEST 3A. DO NOT disconnect connector. Connect jumper wire between ground and terminal No. 17 (Tan/Orange wire) on BCM 20-pin connector. Using scan tool, read door ajar switch status. If scan tool does not display DOOR AJAR: CLOSED, go to next step. If scan tool displays DOOR AJAR: CLOSED, repair open in Tan/Orange wire.
- Disconnect BCM 20-pin connector. Inspect terminal No. 17. Repair as needed. If terminal is okay, replace BCM.
DOOR AJAR TEST 6A - RIGHT REAR DOOR AJAR OPEN CIRCUIT
Note. Perform DOOR AJAR TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Disconnect right rear door ajar switch and ensure connector is clean and not damaged. Ensure right rear door ajar switch ground strap is clean and not damaged. Repair or replace ground strap as necessary. If ground strap is okay, go to next step.
- Connect a jumper wire between right rear door ajar switch connector (Tan/Pink wire) and ground. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, replace right rear door ajar switch. If scan tool does not display DOOR AJAR: CLOSED, go to next step.
- Disconnect jumper wire. Locate BCM 20-pin connector at junction block. (Scheme 19)in CHIME TEST 3A. DO NOT disconnect connector. Connect jumper wire between ground and terminal No. 16 (Tan/Pink wire) on BCM 20-pin connector. Using scan tool, read door ajar switch status. If scan tool does not display DOOR AJAR: CLOSED, go to next step. If scan tool displays DOOR AJAR: CLOSED, repair open in Tan/Pink wire.
- Disconnect BCM 20-pin connector. Inspect terminal No. 16. Repair as needed. If terminal is okay, replace BCM.
DOOR AJAR TEST 7A - LEFT REAR DOOR AJAR OPEN CIRCUIT
Note. Perform DOOR AJAR TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting any module connector. |
- Disconnect left rear door ajar switch and ensure connector is clean and not damaged. Ensure left rear door ajar switch ground strap is clean and not damaged. Repair or replace ground strap as necessary. If ground strap is okay, go to next step.
- Connect a jumper wire between left rear door ajar switch connector (Tan/Red wire) and ground. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, replace left rear door ajar switch. If scan tool does not display DOOR AJAR: CLOSED, go to next step.
- Disconnect jumper wire. Locate BCM 20-pin connector at junction block. (Scheme 19)in CHIME TEST 3A. Connect jumper wire between ground and terminal No. 6 (Tan/Red wire) on BCM 20-pin connector. Using scan tool, read door ajar switch status. If scan tool does not display DOOR AJAR: CLOSED, go to next step. If scan tool displays DOOR AJAR: CLOSED, repair open in Tan/Red wire.
- Disconnect BCM 20-pin connector. Inspect terminal No. 16. Repair as needed. If terminal is okay, replace BCM.
POWER DOOR LOCK TEST 1A - IDENTIFYING POWER DOOR LOCK PROBLEMS
Note. Perform SYMPTOM ID TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Lower both front windows. Close all doors and turn ignition off. Lock and unlock door from all front door switches, including key lock cylinders if vehicle is equipped with Vehicle Theft Security System (VTSS). If door locks operate properly, go to next step. If any door(s) fail to lock or unlock properly, go to appropriate test. See «POWER DOOR LOCK SYSTEM DIAGNOSTIC TEST DIRECTORY»(ref-123786-S03282459882001101500000) table.
- Turn ignition off and leave key in ignition switch. Open left front door. Using either switch, lock doors. If doors did not lock, go to next step. If doors lock (with key in ignition switch and left front door open), go to «POWER DOOR LOCK TEST 6A»(ref-123786-S23873889192001101500000) .
- Close and unlock all doors. Drive vehicle at a speed greater than 15 MPH. If doors do not lock, go to «POWER DOOR LOCK TEST 7A»(ref-123786-S42106017342001101500000) . If doors lock, system is functioning properly.
| Problem | Perform |
|---|---|
| All Doors Fail To Lock & Unlock From Any Switch | POWER DOOR LOCK TEST 2A |
| All Doors Fail To Lock & Unlock From One Switch | POWER DOOR LOCK TEST 3A |
| One Door Fails To Lock & Unlock From Any Switch | POWER DOOR LOCK TEST 4A |
| Doors Fail To Lock From Any Switch | POWER DOOR LOCK TEST 5A |
| Doors Fail To Lock From One Switch | (1) |
| Doors Fail To Unlock From Any Switch | (2) |
| Doors Fail To Unlock From One Switch | (1) |
| Inoperative Door Lock Inhibit Circuit | POWER DOOR LOCK TEST 6A |
| Automatic (While Moving) Door Locks | POWER DOOR LOCK TEST 7A |
| Remote Keyless Entry (RKE) | POWER DOOR LOCK TEST 8A |
| (1) Replace defective switch. (2) Replace defective Body Control Module (BCM). | |
| (1) | Replace defective switch. |
| (2) | Replace defective Body Control Module (BCM). |
POWER DOOR LOCK SYSTEM DIAGNOSTIC TEST DIRECTORY
POWER DOOR LOCK TEST 2A - ALL DOORS FAIL TO LOCK & UNLOCK FROM ANY SWITCH
Note. Perform POWER DOOR LOCK TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Ensure windows are down, key is removed from ignition and doors are unlocked. Using scan tool, actuate door locks. If door locks operate, go to next step. If door locks did not operate, go to «POWER DOOR LOCK TEST 2B»(ref-123786-S06239911822001101500000).
- Using scan tool, read door lock switch voltage. If voltage is 0.5 volt or less, go to next step. If voltage is more than 0.5 volt, repair short to battery voltage in circuit between left or right door lock switch and BCM.
- Hold left door lock switch in lock position. Using scan tool, read door lock switch voltage. If voltage is more than 10 volts, replace BCM. If voltage is 10 volts or less, go to next step.
- Disconnect left front door lock switch White 4-pin connector and ensure connector is clean and not damaged. Using external voltmeter, measure voltage on switch connector terminal No. 1 (Pink wire). If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Pink wire.
- Disconnect BCM 20-pin connector located at junction block and ensure connector is clean and not damaged. (Scheme 18)and (Scheme 20) in CHIME TESTS 2A and 3A. Using an external ohmmeter, measure resistance between terminal No. 8 (White/Dark Green wire) on BCM 20-pin connector and terminal No. 4 (White/Dark Green wire) on left door lock switch White 4-pin connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open in White/Dark Green wire.
- Reconnect left front door lock switch White 4-pin connector. Using external voltmeter, measure voltage between ground and terminal No. 8 (White/Dark Green wire) on BCM 20-pin connector. Depress left front door lock switch to LOCK position and measure voltage. If voltage is 10 volts or less, replace both door lock switches. If voltage is more than 10 volts, replace BCM.
POWER DOOR LOCK TEST 2B - ALL DOORS FAIL TO LOCK/UNLOCK FROM ANY SWITCH
Note. Perform POWER DOOR LOCK TEST 2A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Using scan tool, read door lock switch voltage. If voltage is 0.5 volt or less, go to next step. If voltage is more than 0.5 volt, repair short to battery voltage in White/Dark Green or White/Light Green wire at BCM 20-pin connector.
- Remove and inspect fuse No. 9 (15-amp), located in junction block. (Scheme 20)in CHIME TEST 3A. If fuse is okay, reinstall fuse and go to next step. If fuse is open, go to step 6).
- Using external voltmeter, measure voltage on battery voltage side (Red/White wire) of fuse No. 9. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open Red/White wire between junction block and Power Distribution Center (PDC).
- Disconnect and remove BCM from junction block. Ensure 12-pin internal connector is clean and not damaged. Using scan tool in voltmeter mode, measure voltage at terminals No. 2 and No. 12 on BCM 12-pin internal connector. (Scheme 20)in CHIME TEST 3A. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, replace junction block.
- Using external ohmmeter, measure resistance between ground and terminal No. 10 on BCM 12-pin internal connector. If resistance is 5 ohms or more, repair open in Black (ground) wire. If resistance is less than 5 ohms, replace BCM.
- Turn ignition off. Using external ohmmeter, measure resistance between ground and fused battery voltage terminal (Pink wire) on fuse No. 9. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, replace fuse No. 9 and press door lock switch to LOCK position. If fuse blows, go to «POWER DOOR LOCK TEST 2C»(ref-123786-S08872520252001101500000). If fuse does not blow, press door lock switch to UNLOCK position. If fuse blows, go to «POWER DOOR LOCK TEST 2D»(ref-123786-S20047429032001101500000). If fuse does not blow, system is operating properly.
- Remove BCM and ensure connectors are clean and no terminals are pushed out. Repair as necessary and replace fuse No. 9. If connectors are okay, replace BCM and fuse No. 9.
POWER DOOR LOCK TEST 2C - DOOR LOCK DRIVER SHORT CIRCUIT
Note. Perform POWER DOOR LOCK TEST 2A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Disconnect BCM 20-pin connector located at junction block and ensure connector is clean and not damaged. (Scheme 19)in CHIME TEST 3A. Using scan tool in ohmmeter mode, measure resistance at terminals No. 10 (Orange/Black wire), No. 11 (Orange/White wire), No. 12 (Orange/Tan wire) and No. 13 (Orange/Brown wire) on BCM 20-pin connector.
- If resistance is less than 5 ohms, repair shorted door lock driver circuit, replace fuse No. 9 and replace BCM (relay in BCM will be damaged). If resistance 5 ohms or greater, replace BCM and replace fuse No. 9.
POWER DOOR LOCK TEST 2D - SHORTED DOOR UNLOCK DRIVER CIRCUIT
Note. Perform POWER DOOR LOCK TEST 2A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Disconnect BCM 20-pin connector located at junction block and ensure connector is clean and not damaged. (Scheme 19)in CHIME TEST 3A. Using external ohmmeter, measure resistance between ground and terminals No. 1 (Pink/Light Blue wire), No. 2 (Pink/Dark Blue wire), No. 3 (Pink/Black wire) and No. 4 (Dark Blue/White wire) on BCM 20-pin connector.
- If resistance is less than 5 ohms, repair shorted door unlock driver circuit, replace fuse No. 9 in junction block and replace BCM (relay in BCM will be damaged). If resistance is 5 ohms or greater on any of tested circuits, replace BCM and fuse No. 9.
POWER DOOR LOCK TEST 3A - ALL DOORS FAIL TO LOCK & UNLOCK FROM ONE SWITCH
Note. Perform POWER DOOR LOCK TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- If vehicle is not equipped with Vehicle Theft Security System (VTSS), go to next step. If vehicle is equipped with VTSS and problem is with left front door lock cylinder switch, go to «VTSS TEST 11A»(ref-123786-S08420272712001101500000). If vehicle is equipped with VTSS and problem is with right front door cylinder switch, go to «VTSS TEST 12A»(ref-123786-S36800012532001101500000).
- Using scan tool, read door lock switch voltage while holding suspect door lock switch in LOCK position. If voltage is 9 volts or less, go to next step. If voltage is more than 9 volts, replace BCM.
- Disconnect BCM 20-pin connector located at junction block and ensure connector is clean and not damaged. (Scheme 19)in CHIME TEST 3A. Using scan tool in voltmeter mode, measure voltage at either terminal No. 8 (White/Dark Green wire) for left front door or terminal No. 18 (White/Light Green wire) for right front door on BCM 20-pin connector. Hold suspect door lock switch in LOCK position and measure voltage. If voltage is 9 volts or less, go to next step. If voltage is more than 9 volts, replace BCM.
- Disconnect suspect door lock switch connector and ensure connector is clean and not damaged. Using scan tool in voltmeter mode, measure voltage at terminal No. 1 (Pink wire) on suspect door switch connector. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Pink wire circuit.
- Using an external ohmmeter, measure resistance of White/Dark Green wire between terminal No. 4 on left door switch connector and terminal No. 8 on BCM 20-pin connector. If resistance is more than 5 ohms, repair open in left door lock switch circuit. If resistance is less than 5 ohms, replace left door lock switch.
- Using an external ohmmeter, measure resistance of White/Light Green wire between terminal No. 4 on right door switch connector and terminal No. 18 on BCM 20-pin connector. If resistance is more than 5 ohms, repair open in right door lock switch circuit. If resistance is less than 5 ohms, replace right door lock switch.
POWER DOOR LOCK TEST 4A - ONE DOOR FAILS TO LOCK & UNLOCK FROM ANY SWITCH
Note. Perform POWER DOOR LOCK TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Remove suspect door trim panel and inspect door lock motor-to-door latch linkage. If linkage is okay, go to next step. If linkage is not okay, repair and/or replace as needed.
- Disconnect suspect door lock motor connector and ensure connector is clean and not damaged. Connect a test light between ground and terminal No. 2 (Orange/Black wire) on door lock motor harness connector. Turn ignition switch to ON position with engine off. Using scan tool, actuate door locks while observing test light. If test light comes on when door locks are actuated, go to next step. If test light does not come on, go to step 4).
- Connect test light between ground and terminal No. 1 (Dark Blue/White wire on left front door; Pink/Black wire on all others) on door lock motor harness connector. Using scan tool, actuate door unlock relay while observing test light. On vehicles equipped with Remote Keyless Entry (RKE), if left front door is suspect, actuate left front door unlock relay. On all vehicles, if test light did not come on, go to «POWER DOOR LOCK TEST 4B»(ref-123786-S34792810452001101500000). If test light did come on, replace door lock motor.
- Locate, but do not disconnect BCM 20-pin connector located at junction block. (Scheme 19)in CHIME TEST 3A. Using a test light, backprobe suspect terminal on BCM 20-pin connector. Left front door lock is terminal No. 10 (Orange/Black wire), right front door lock is terminal No. 11 (Orange/White wire), right rear door lock is terminal No. 12 (Orange/Tan wire) and left rear door lock is terminal No. 13 (Orange/Brown wire).
- Using scan tool, actuate door locks while observing test light. If test light does not illuminate, replace BCM. If test light illuminates, repair open in wire between suspect door lock motor connector and BCM 20-pin connector.
POWER DOOR LOCK TEST 4B - ONE DOOR FAILS TO LOCK & UNLOCK FROM ANY SWITCH
Note. Perform POWER DOOR LOCK TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Locate, but do not disconnect BCM 20-pin connector located at junction block. (Scheme 19)in CHIME TEST 3A. Using a test light, backprobe suspect terminal on BCM 20-pin connector. Left front door lock is terminal No. 4 (Dark Blue/White wire), right front door lock is terminal No. 1 (Pink/Light Blue wire), right rear door lock is terminal No. 2 (Pink/Dark Blue wire) and left rear door lock is terminal No. 3 (Pink/Black wire).
- Using scan tool, actuate door unlock while observing test light. On vehicles equipped with Remote Keyless Entry (RKE), if left front door is suspect, actuate left front door unlock relay. On all vehicles, if test light does not illuminate, replace BCM. If test light illuminates, repair open in wire between suspect door lock motor connector and BCM 20-pin connector.
POWER DOOR LOCK TEST 5A - DOORS FAIL TO LOCK FROM ANY SWITCH
Note. Perform POWER DOOR LOCK TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Using scan tool, actuate door locks. If door locks operate, go to next step. If door locks do not operate, replace BCM.
- Using scan tool, read left front door ajar status and close left front door. If scan tool displays, LF DOOR: OPEN, replace BCM. If scan tool does not display, LF DOOR: OPEN, go to «DOOR AJAR TEST 2A»(ref-123786-S32317938382001101500000) .
POWER DOOR LOCK TEST 6A - INOPERATIVE DOOR LOCK INHIBIT CIRCUIT
Note. Perform POWER DOOR LOCK TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Open left front door and read left front door ajar status. If scan tool displays LF DOOR: CLOSED, go to next step. If scan tool does not display LF DOOR: CLOSED, go to «DOOR AJAR TEST 3A»(ref-123786-S16967384562001101500000) .
- Remove key from ignition switch. Using scan tool, read key-in ignition status. If scan tool does not display KEY-IN IGN: CLOSED, go to next step. If scan tool displays KEY-IN IGN: CLOSED, go to «CHIME TEST 7A»(ref-123786-S19619556312001101500000) .
- Insert key in ignition switch. Using scan tool, read key-in ignition status. If scan tool displays KEY-IN IGN: CLOSED, replace BCM. If scan tool does not display KEY-IN IGN: CLOSED, go to «CHIME TEST 6A»(ref-123786-S10537928682001101500000) .
POWER DOOR LOCK TEST 7A - AUTOMATIC (WHILE MOVING) DOOR LOCKS
Note. Perform POWER DOOR LOCK TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Using scan tool, read auto door lock status. If scan tool displays AUTO DOOR LOCKS ARE ENABLED, go to next step. If scan tool does not display AUTO DOOR LOCKS ARE ENABLED, use scan tool to enable auto door locks.
- Close all doors. Using scan tool, read left front door ajar status. If scan tool displays LF DOOR AJAR: CLOSED, go to «DOOR AJAR TEST 2A»(ref-123786-S32317938382001101500000) . If scan tool does not display LF DOOR AJAR: CLOSED, go to next step.
- Using scan tool, read door ajar status. If scan tool displays DOOR AJAR: CLOSED, go to «DOOR AJAR TEST 4A»(ref-123786-S03903167902001101500000) . If scan tool does not display DOOR AJAR: CLOSED, go to next step.
- Turn ignition on with engine off. Using scan tool, select SYSTEM TEST. If scan tool displays POWERTRAIN CONTROL MODULE: INACTIVE ON BUS, go to «VEHICLE COMMUNICATIONS TESTS»(ref-123786-S29515023562001101500000) . If scan tool does not display, POWERTRAIN CONTROL MODULE: INACTIVE ON BUS, go to next step.
- Using scan tool, read ENGINE INFO and observe Throttle Position (TP) sensor while depressing throttle. If TP sensor percentage increases as throttle is opened, go to next step. If TP percentage does not increase as throttle is opened, TP sensor is faulty. See TESTS W/CODES article in the ENGINE PERFORMANCE section.
- Raise and properly support vehicle drive wheels. Close all doors, start engine, apply brakes and put transmission into drive. Using scan tool, read ENGINE INFO and observe Vehicle Speed Sensor (VSS) when wheels rotate. Release brakes and carefully open throttle. If MPH increased as throttle is opened slightly for 15 seconds, go to next step. If MPH did not increase as throttle is opened slightly for 15 seconds, VSS is faulty. See TESTS W/CODES article in the ENGINE PERFORMANCE section.
- If doors locked automatically when MPH increased to more than 15 MPH, system is operating properly. If doors did not lock automatically when MPH increased to more than 15 MPH, replace BCM.
POWER DOOR LOCK TEST 8A - IDENTIFYING RKE PROBLEMS
Note. Perform POWER DOOR LOCK TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
EXTERIOR LIGHT TEST 1A - IDENTIFYING EXTERIOR LIGHTING SYSTEM PROBLEMS
Note. Perform SYMPTOM ID TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Exterior lighting system uses a headlight time delay function. Identify problem(s) listed in EXTERIOR LIGHT SYSTEM DIAGNOSTIC TEST DIRECTORY table and perform indicated test(s).
Note. Headlight time delay will only operate when ignition switch is turned off, while headlights are still on and headlight switch is turned to OFF position within 45 seconds of ignition switch being turned off. Body Control Module (BCM) will provide a 90-second time delay before turning headlights off.
| Problem (1) | Perform |
|---|---|
| Headlights Will Not Turn Off | EXTERIOR LIGHT TEST 2A |
| Headlight Time Delay Does Not Function | EXTERIOR LIGHT TEST 3A |
| (1) If headlights do not operate from headlight switch, see EXTERIOR LIGHTS WIRING DIAGRAM article in the WIRING DIAGRAMS section. | |
| (1) | If headlights do not operate from headlight switch, see EXTERIOR LIGHTS WIRING DIAGRAM article in the WIRING DIAGRAMS section. |
EXTERIOR LIGHT SYSTEM DIAGNOSTIC TEST DIRECTORY
EXTERIOR LIGHT TEST 2A - HEADLIGHTS WILL NOT TURN OFF
Note. Perform EXTERIOR LIGHT TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Disconnect headlight delay relay located in junction block. (Scheme 20)in CHIME TEST 3A. If headlights go off, go to next step. If headlights do not go off, repair short to battery voltage in Violet/White wire between ignition switch and junction block.
- Using external ohmmeter, measure resistance between ground and terminal No. 2 on headlight delay relay socket. (Scheme 20)in CHIME TEST 3A. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, replace headlight delay relay.
- Turn ignition off. Disconnect BCM from junction block and ensure connector is clean and not damaged. Leave BCM disconnected. Using external ohmmeter, measure resistance between ground and terminal No. 2 on headlight delay relay. (Scheme 20)in CHIME TEST 3A. If resistance is 5 ohms or greater, replace BCM. If resistance is less 5 ohms, replace junction block.
EXTERIOR LIGHT TEST 3A - HEADLIGHT TIME DELAY DOES NOT FUNCTION
Note. Perform EXTERIOR LIGHT TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition on. Using scan tool, actuate headlight relay. If headlights toggle on and off, go to next step. If headlights do not toggle on and off, go to step 3).
- Stop actuation of headlight relay and turn headlight switch to ON position. Using scan tool, read low beam sense status. Turn headlight switch OFF, and then to ON position. If scan tool displays LOW BEAM SENSE: OFF and then LOW BEAM SENSE: ON, replace BCM. If scan tool display does not match headlight switch positions, replace junction block.
- Using scan tool, stop headlight relay actuation. Replace headlight delay relay with known good relay. Using scan tool, actuate headlight relay. If headlights toggle on and off, replace relay. If headlights do not toggle on and off, go to next step.
- Using external voltmeter, measure voltage between ground and terminal No. 1 on headlight delay relay socket. (Scheme 20)in CHIME TEST 3A. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, replace junction block.
- Using external voltmeter, measure voltage between ground and terminal No. 3 on headlight delay relay socket. (Scheme 20)in CHIME TEST 3A. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, replace junction block.
- Connect a jumper wire between terminals No. 1 and 5 on headlight delay relay socket. (Scheme 20)in CHIME TEST 3A. If headlights illuminate, replace BCM. If headlights do not illuminate, replace junction block.
INTERIOR LIGHT TEST 1A - IDENTIFYING INTERIOR LIGHTING SYSTEM PROBLEMS
Note. Perform SYMPTOM ID TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Interior lighting system consists of courtesy lights, illuminated entry, and key-in light. Identify problem(s) listed in INTERIOR LIGHT SYSTEM DIAGNOSTIC TEST DIRECTORY table and perform indicated test(s).
| Problem | Perform |
|---|---|
| Courtesy Light Inoperative With Any Door | INTERIOR LIGHT TEST 2A |
| Courtesy Light On At All Times | INTERIOR LIGHT TEST 3A |
| Courtesy Light Inoperative With Dome Light Switch | INTERIOR LIGHT TEST 4A |
| Illuminated Entry Inoperative | INTERIOR LIGHT TEST 5A |
| Key-In Light Inoperative | INTERIOR LIGHT TEST 6A |
| Key-In Light Is On Constantly | INTERIOR LIGHT TEST 7A |
| Courtesy Light Inoperative With LF Door | DOOR AJAR TEST 3A |
| Courtesy Light Inoperative With RF Door | DOOR AJAR TEST 5A |
| Courtesy Light Inoperative With RR Door | DOOR AJAR TEST 6A |
| Courtesy Light Inoperative With LR Door | DOOR AJAR TEST 7A |
INTERIOR LIGHT SYSTEM DIAGNOSTIC TEST DIRECTORY
INTERIOR LIGHT TEST 2A - COURTESY LIGHT INOPERATIVE WITH ANY DOOR
Note. Perform INTERIOR LIGHT TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- If vehicle is JX model, go to «INTERIOR LIGHT TEST 2C»(ref-123786-S17598042062001101500000). If vehicle is JA model, ensure dome light switch is in the middle position before proceeding. Using scan tool, actuate courtesy light. If courtesy light comes on, go to step 6). If courtesy light does not come on, go to next step.
- Stop courtesy light actuation. Locate junction block 6-pin connector below horn relay. Do not disconnect connector. (Scheme 20)in CHIME TEST 3A. Using external voltmeter, measure voltage between ground and terminal No. 6 (Pink wire) on junction block 6-pin connector. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, replace junction block.
- Using external voltmeter, measure voltage between ground and terminal No. 3 (Yellow wire) on junction block 6-pin connector. If voltage is more than 10 volts, go to «INTERIOR LIGHT TEST 2B»(ref-123786-S23731726552001101500000). If voltage is 10 volts or less, go to next step.
- Disconnect dome light 3-pin connector and ensure connector is clean and not damaged. Inspect dome light bulb. Replace as needed. If dome light bulb is okay, go to next step.
- Using external voltmeter, measure voltage between ground and terminal No. 2 (Pink wire) on dome light 3-pin connector. If voltage is 10 volts or less, repair open in Pink wire. If voltage is more than 10 volts, repair open in Yellow wire.
- Stop courtesy light actuation. Open left front door. Using scan tool, read left front door ajar switch status. If scan tool displays LF DOOR AJAR: CLOSED, replace BCM. If scan tool does not display LF DOOR AJAR: CLOSED, go to «DOOR AJAR TEST 3A»(ref-123786-S16967384562001101500000).
INTERIOR LIGHT TEST 2B - COURTESY LIGHT INOPERATIVE WITH ANY DOOR
Note. Perform INTERIOR LIGHT TEST 2A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Disconnect probe from junction block 6-pin connector. Turn ignition off. Disconnect BCM from junction block and ensure connector is clean and not damaged. Using external voltmeter, measure voltage between ground and terminal No. 9 on junction block BCM connector. If voltage is more than 10 volts, replace BCM. If voltage is 10 volts or less, replace junction block.
INTERIOR LIGHT TEST 2C - COURTESY LIGHT INOPERATIVE WITH ANY DOOR
Note. Perform INTERIOR LIGHT TEST 2A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
- Using scan tool, actuate courtesy lights. If courtesy lights illuminate, go to «INTERIOR LIGHT TEST 2D»(ref-123786-S30194524372001101500000). If courtesy lights do not illuminate, go to next step.
- Stop actuation. Remove courtesy light relay harness connector. Relay is located above brake pedal. Using voltmeter, measure voltage between ground and terminal No. 4 (Pink wire) on courtesy light relay harness connector. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open Pink wire between relay and junction block.
- Using voltmeter, measure voltage between ground and terminal No. 8 (Yellow wire) on courtesy light relay harness connector. If voltage is more than 9 volts, go to next step. If voltage is 10 volts or less, repair open Yellow wire.
- Using external ohmmeter, measure resistance between ground and terminal No. 2 (Black wire) on courtesy light relay harness connector. If resistance is less than 10 ohms, go to next step. If resistance is 5 ohms or greater, repair open Black wire.
- Connect test light between terminals No. 4 and 6 on courtesy light relay harness connector. Using scan tool, actuate courtesy lights. If test light illuminates, replace courtesy light relay. If test light does not illuminate, go to next step.
- Connect courtesy light relay. Using external voltmeter, backprobe junction block 6-pin connector. (Scheme 20)in CHIME TEST 3A. Measure voltage between ground and terminal No. 1 (Brown/Light Green wire). If voltage is 9 volts or less, repair open Brown/Light Green wire. If voltage is greater than 9 volts, replace Body Control Module (BCM). BCM is mounted to junction block. (Scheme 18)in CHIME TEST 2A.
INTERIOR LIGHT TEST 2D - COURTESY LIGHT INOPERATIVE WITH ANY DOOR
Note. Perform INTERIOR LIGHT TEST 2C before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Stop courtesy light actuation. Open left front door. Using scan tool, read left front door ajar switch status. If scan tool displays LFDOOR AJAR: CLOSED, replace Body Control Module (BCM). BCM is mounted to junction block. (Scheme 18)in CHIME TEST 2A. If scan tool does not display LFDOOR AJAR: CLOSED, go to DOOR AJAR TEST 3A.
INTERIOR LIGHT TEST 3A - COURTESY LIGHT ON AT ALL TIMES
Note. Perform INTERIOR LIGHT TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Ensure dome light switch is in the middle position and all doors are aligned correctly before proceeding. Close all doors. Using scan tool, read left front door ajar switch status. If scan tool does not display LF DOOR AJAR: CLOSED, go to next step. If scan tool displays, LF DOOR AJAR: CLOSED, go to «DOOR AJAR TEST 2A»(ref-123786-S32317938382001101500000).
- Using scan tool, read door ajar switch status. If scan tool does not display DOOR AJAR: CLOSED, go to next step. If scan tool displays DOOR AJAR: CLOSED, go to «DOOR AJAR TEST 4A»(ref-123786-S03903167902001101500000).
- If vehicle is JX model, go to step 5). If vehicle is JA model, locate junction block 6-pin connector below horn relay. (Scheme 20)in CHIME TEST 3A. Disconnect junction block 6-pin connector and ensure connector is clean and not damaged. Using external ohmmeter, measure resistance between ground and terminal No. 1 (Yellow wire) on 6-pin connector. If resistance is 10 ohms or greater, go to next step. If resistance is less than 10 ohms, repair short to ground in Yellow wire.
- Turn ignition off. Disconnect Body Control Module (BCM) from junction block and ensure connector is clean and not damaged. Reconnect junction block 6-pin connector. If dome light illuminates, replace junction block. If dome light does not illuminate, replace BCM.
- Disconnect courtesy light relay located above brake pedal. If courtesy lights are not illuminated, go to next step. If courtesy lights remain illuminated, repair courtesy light driver circuit (Yellow wire) for short to ground.
- Disconnect junction block 6-pin connector. (Scheme 20)in CHIME TEST 3A. Ensure connector is clean and not damaged. Using external ohmmeter, measure resistance between ground and terminal No. 1 (Yellow wire) on 6-pin connector. If resistance is 500 ohms or greater, replace courtesy light relay. If resistance is less than 500 ohms, repair short to ground in Brown/Light Green wire between junction block and courtesy light relay.
INTERIOR LIGHT TEST 4A - COURTESY LIGHT INOPERATIVE WITH DOME LIGHT SWITCH
Note. Perform INTERIOR LIGHT TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Ensure dome light switch is in the middle position before proceeding. Locate junction block 6-pin connector below horn relay. (Scheme 20)in CHIME TEST 3A. Backprobing junction block 6-pin connector, connect jumper wire between terminal No. 4 (Black wire) and ground. If dome light does not illuminate, leave jumper wire connected and go to next step. If dome light illuminates, replace junction block.
- Disconnect dome light 3-pin connector and ensure connector is clean and not damaged. Using external ohmmeter, measure resistance of dome light 3-pin connector terminal No. 1 (Black wire). If resistance is less than 5 ohms, replace dome light assembly. If resistance is 5 ohms or greater, repair open Black wire.
INTERIOR LIGHT TEST 5A - ILLUMINATED ENTRY INOPERATIVE
Note. Perform INTERIOR LIGHT TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Note. Illuminated entry will only operate when activated by Remote Keyless Entry (RKE) transmitter.
Ensure dome light switch is in the middle position before proceeding (if applicable). Using scan tool, actuate courtesy light. If dome light does not illuminate, go to INTERIOR LIGHT TEST 2A. If dome light illuminates, stop actuation. If RKE is not operating properly, go to POWER DOOR LOCK TEST 8A. If RKE is operating properly, replace Body Control Module (BCM). BCM is mounted to junction block. (Scheme 18)in CHIME TEST 2A.
INTERIOR LIGHT TEST 6A - KEY-IN LIGHT INOPERATIVE
Note. Perform INTERIOR LIGHT TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition off. Close all doors and wait one minute. Open and close left front door while watching key-in light. If key-in light illuminates and then, after 30 seconds, turns off, system is operating properly. If key-in light does not illuminate as described and courtesy lights do not come on, open left front door. If courtesy lights still do not illuminate, go to «DOOR AJAR TEST 3A»(ref-123786-S16967384562001101500000). If key-in light does not operate as described and courtesy lights do illuminate when left front door is opened, go to next step.
- Turn ignition on. Using scan tool, actuate key-in light. If key-in light does not flash on and off, go to next step. If key-in light flashes on and off, replace Body Control Module (BCM). BCM is mounted to junction block. (Scheme 18)in CHIME TEST 2A.
- Stop key-in light actuation and remove key-in bulb. See STEERING COLUMN SWITCHES article in the ACCESSORIES & ELECTRICAL section. Inspect key-in bulb and socket. If key-in bulb and socket are okay, go to next step. If key-in bulb is open or socket is damaged, repair socket or replace bulb as necessary.
- Install key-in bulb. Disconnect key-in light 2-pin connector and ensure connector is clean and not damaged. Using external voltmeter, measure voltage between ground and terminal No. 1 (Pink/White wire) on key-in light 2-pin connector. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open Pink/White wire between fuse No. 5 (10-amp) and key-in light connector.
- Reconnect key-in light 2-pin connector. Disconnect instrument panel 10-pin connector at BCM. Ensure connector is clean and not damaged. Using external voltmeter, measure voltage between ground and terminal No. 7 (Yellow/Red wire) on instrument panel (BCM) 10-pin connector. If voltage is more than 10 volts, replace BCM. If voltage is 10 volts or less, repair open in Yellow/Red wire between BCM and key-in light.
INTERIOR LIGHT TEST 7A - KEY-IN LIGHT IS ON CONSTANTLY
Note. Perform INTERIOR LIGHT TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Turn ignition off. Disconnect instrument panel 10-pin connector at Body Control Module (BCM). BCM is mounted to junction block. Ensure connector is clean and not damaged. (Scheme 20)in CHIME TEST 3A. If key-in light turns off, replace BCM. If key-in light does not turn off, repair Yellow/Red wire between BCM and key-in light for short to ground.
INSTRUMENT CLUSTER TEST 1A - IDENTIFYING INSTRUMENT CLUSTER PROBLEMS
Note. Perform SYMPTOM ID TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition on. Using scan tool, select MIC CLUSTER. If scan tool displays BUS OPERATIONAL, go to next step. If scan tool displays any other message, see «VEHICLE COMMUNICATIONS TESTS»(ref-123786-S29515023562001101500000) .
- If scan tool displays, NO RESPONSE or Vacuum Fluorescent (VF) display is blank or displays NO BUS, see «VEHICLE COMMUNICATIONS TESTS»(ref-123786-S29515023562001101500000) . If scan tool display is other than described, go to next step.
- Using scan tool, select MIC CLUSTER and then select READ DTCs. If scan tool displays RAM FAULT, replace Mechanical Instrument Cluster (MIC). If scan tool display is other than described, go to next step.
- Using scan tool, select MIC CLUSTER and read cluster type. If cluster type matches vehicle equipment (US or Metric), go to next step. If cluster type does not match vehicle, replace MIC.
- Using scan tool, select BODY COMPUTER systems test. If PCM status is INACTIVE ON THE BUS, see «VEHICLE COMMUNICATIONS TESTS»(ref-123786-S29515023562001101500000) . If scan tool display is other than described, go to next step.
- Identify problems(s) listed in INSTRUMENT CLUSTER DIAGNOSTIC TEST DIRECTORY table and perform indicated test(s).
| Problem | Perform | |
|---|---|---|
| All Gauges Do Not Operate | INSTRUMENT CLUSTER TEST 2A | |
| Odometer Does Not Operate | Replace Odometer | |
| One Gauge Not Operating Properly | ||
| Fuel Gauge | INSTRUMENT CLUSTER TEST 3A | |
| Speedometer | INSTRUMENT CLUSTER TEST 3B | |
| Tachometer | INSTRUMENT CLUSTER TEST 3C | |
| Temperature Gauge | INSTRUMENT CLUSTER TEST 3D | |
| Identifying Warning Light Problems | INSTRUMENT CLUSTER TEST 4A | |
| Cluster Illumination | INSTRUMENT CLUSTER TEST 5A | |
| Gauges Not Going To Zero When Key Is Turned Off | INSTRUMENT CLUSTER TEST 6A | |
| Trip Reset Button | (1) | |
| (1) Using scan tool, read status of trip reset button switch (open or closed), and depress trip reset button. If status of trip reset button does not change, replace Mechanic Instrument Cluster (MIC). | ||
| (1) | Using scan tool, read status of trip reset button switch (open or closed), and depress trip reset button. If status of trip reset button does not change, replace Mechanic Instrument Cluster (MIC). |
INSTRUMENT CLUSTER DIAGNOSTIC TEST DIRECTORY
INSTRUMENT CLUSTER TEST 2A - ALL GAUGES DO NOT OPERATE
Note. Perform INSTRUMENT CLUSTER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition to OFF (UNLOCK) position. Using scan tool, select BODY, ELECTRO/MECH CLUSTER. Select ACTUATION TEST. If gauges move from lower to upper limits, go to next step. If gauges do not move, replace Mechanical Instrument Cluster (MIC).
- Turn ignition on with engine off. Using scan tool, select BODY, then BODY CONTROL MODULE. Select INPUT/OUTPUT and read ignition switch run/start status. If scan tool displays switch CLOSED, replace Body Control Module (BCM). BCM is mounted to junction block. (Scheme 18)in CHIME TEST 2A. If scan tool does not display switch CLOSED, see «VEHICLE COMMUNICATIONS TESTS»(ref-123786-S29515023562001101500000).
INSTRUMENT CLUSTER TEST 3A - FUEL GAUGE NOT OPERATING PROPERLY
Note. Perform INSTRUMENT CLUSTER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Ensure there is fuel in fuel tank before proceeding with this test. If problem is only with fuel warning light, go to «INSTRUMENT CLUSTER TEST 3G»(ref-123786-S10973439322001101500000). If problem is with fuel gauge accuracy, go to «INSTRUMENT CLUSTER TEST 3E»(ref-123786-S37957563092001101500000). If problem is that fuel gauge always shows full, go to «INSTRUMENT CLUSTER TEST 3F»(ref-123786-S09036199172001101500000). If problem is other than those listed, go to next step.
- Start engine. Using scan tool, select BODY COMPUTER. Read DTCs. If scan tool displays FUEL LEVEL SENDING CIRCUIT ERROR, go to step 5). If scan tool does not display FUEL LEVEL SENDING CIRCUIT ERROR, go to next step.
- Turn ignition off. Disconnect fuel pump module 4-pin connector, located behind back seat, in trunk. Ensure connector is clean and not damaged. Using external voltmeter, measure voltage between ground and terminal No. 2 (Dark Blue wire) on fuel pump module 4-pin harness connector. If voltage is 9.5 volts or less, go to next step. If voltage is more than 9.5 volts, replace fuel tank sending unit.
- Locate Body Control Module (BCM) 20-pin connector located at junction block. (Scheme 19)in CHIME TEST 3A. Do not disconnect connector. Using external voltmeter, backprobe BCM 20-pin connector. Measure voltage between ground and terminal No. 15 (Dark Blue wire). If voltage is more than 10 volts, repair open in Dark Blue wire. If voltage is 10 volts or less, replace BCM.
- Turn ignition off. Disconnect fuel pump module 4-pin connector, located behind back seat, in trunk area. Ensure connector is clean and not damaged. Connect a jumper wire between terminals No. 4 (Black/Light Green wire) and No. 2 (Dark Blue wire) on fuel pump module 4-pin harness connector. Turn ignition on. Using scan tool, read fuel level voltage. If scan tool displays one volt or greater, go to next step. If scan tool displays less than one volt, replace fuel level sensor.
- Disconnect jumper wire. Connect a jumper wire between ground and terminal No. 2 (Dark Blue wire) on fuel pump module 4-pin connector. Using scan tool, read fuel level voltage. If scan tool displays one volt or greater, go to next step. If scan tool displays less than one volt, repair open in Black/Light Green wire.
- Disconnect jumper wire. Locate BCM 20-pin connector. Do not disconnect connector. Connect jumper wire between ground and terminal No. 15 (Dark Blue wire) on BCM 20-pin connector. Using scan tool, read fuel level voltage. If scan tool displays one volt or greater, replace BCM. If scan tool displays less than one volt, repair open Dark Blue wire between fuel pump module 4-pin connector and BCM 20-pin connector.
INSTRUMENT CLUSTER TEST 3B - SPEEDOMETER NOT OPERATING PROPERLY
Note. Perform INSTRUMENT CLUSTER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Using scan tool, read engine trouble codes. If codes related to Vehicle Speed Sensor (VSS) are displayed, see TESTS W/CODES article in the ENGINE PERFORMANCE section. If no VSS codes are displayed, go to next step.
- Using scan tool, actuate instrument cluster gauges. Speedometer should move to 100 MPH mark, then in steps should move to 75, 55, 20, zero MPH marks. If speedometer functions as described, replace Body Control Module (BCM). (Scheme 19)in CHIME TEST 3A. If speedometer does not function correctly, go to next step.
- Remove instrument cluster and access back of gauges. Using external ohmmeter, measure resistance diagonally across speedometer terminals. If resistance is 200-220 ohms, replace instrument cluster circuit board. If resistance is not 200-220 ohms, replace speedometer gauge pack.
INSTRUMENT CLUSTER TEST 3C - TACHOMETER NOT OPERATING PROPERLY
Note. Perform INSTRUMENT CLUSTER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Using scan tool, select ENGINE, then SENSOR DISPLAYS. Select ENGINE RPM. If tachometer reading is more than 100 RPM, go to next step. If tachometer reading is 100 RPM or less, see TESTS W/CODES article in the ENGINE PERFORMANCE section.
- Using scan tool, actuate instrument cluster gauges. Tachometer should move to 6000 RPM mark, then in steps should move to 3000, 1000, zero RPM marks. If tachometer functions as described, replace Body Control Module (BCM). (Scheme 19)in CHIME TEST 3A. If tachometer does not function correctly, go to next step.
- Remove instrument cluster and access back of gauges. Using external ohmmeter, measure resistance diagonally across tachometer terminals. If resistance is 200-220 ohms, replace instrument cluster circuit board. If resistance is not 200-220 ohms, replace tachometer gauge pack.
INSTRUMENT CLUSTER TEST 3D - TEMPERATURE GAUGE NOT OPERATING PROPERLY
Note. Perform INSTRUMENT CLUSTER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Using scan tool, read engine trouble codes. If codes related to engine coolant temperature are displayed, see TESTS W/CODES article in the ENGINE PERFORMANCE section. If no codes are displayed, go to next step.
- Using scan tool, actuate instrument cluster gauges. Temperature gauge should move to HOT mark, then in steps should move to 1/2 and COLD marks. If temperature gauge functions as described, replace BCM. If temperature gauge does not function correctly, go to next step.
- Remove instrument cluster and access back of gauges. Using external ohmmeter, measure resistance across temperature gauge terminals at 12 and 6 o'clock (vertical), and 3 and 9 o'clock (horizontal). If resistance is 200-220 ohms, replace instrument cluster circuit board. If resistance is not 200-220 ohms, replace temperature gauge pack.
INSTRUMENT CLUSTER TEST 3E - CHECKING FUEL GAUGE ACCURACY
Note. Perform INSTRUMENT CLUSTER TEST 3A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition off. Disconnect fuel pump module 4-pin connector, located behind back seat, in trunk. Ensure connector is clean and not damaged.
- Using external ohmmeter, measure resistance between terminals No. 2 (Dark Blue wire) and No. 4 (Black/Light Green wire) on fuel pump module (component side) 4-pin connector. If resistance matches fuel gauge reading, go to next step. If resistance does not match fuel gauge reading, replace Body Control Module (BCM). (Scheme 19)in CHIME TEST 3A. See FUEL LEVEL SENDING UNIT RESISTANCE table. FUEL LEVEL SENDING UNIT RESISTANCE Fuel Level Float Height In. (mm) Resistance (Ohms) Full 5.4-5.8 (137-147) 50-90 3/4 3.8 (97) 310-370 1/2 2.6 (66) 520-580 1/4 1.4 (35) 730-790 Empty -.14-.18 (-3.5-4.6) 1020-1080
- Remove fuel level sending unit from fuel tank. Inspect tank unit for foreign material and sending unit for bent, sticking or binding arm. If tank and sending unit are okay, system is operating properly. If tank and/or sending unit are not okay, repair or replace as necessary.
INSTRUMENT CLUSTER TEST 3F - REPAIRING FUEL GAUGE
Note. Perform INSTRUMENT CLUSTER TEST 3A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition off. Disconnect fuel pump module 4-pin connector, located behind back seat, in trunk. Ensure connector is clean and not damaged. Ensure fuel tank has some fuel in it. Turn ignition on with engine off. If fuel gauge does not display empty, go to next step. If fuel gauge displays empty, go to step 3).
- Turn ignition off. Disconnect Body Control Module (BCM) 20-pin connector located at junction block and ensure connector is clean and not damaged. (Scheme 19)in CHIME TEST 3A. Using external ohmmeter, measure resistance between ground and terminal No. 15 (Dark Blue wire) on BCM 20-pin connector. If resistance is less than 5 ohms, repair short to ground in Dark Blue wire. If resistance is 5 ohms or greater, replace BCM.
- Remove fuel level sending unit from fuel tank. Inspect tank unit for foreign material and sending unit for bent, sticking or binding arm. If tank and/or sending unit are okay, system is operating properly. If tank and/or sending unit are not okay, repair or replace as necessary.
INSTRUMENT CLUSTER TEST 3G - REPAIRING LOW FUEL LIGHT
Note. Perform INSTRUMENT CLUSTER TEST 3A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Ensure fuel tank is more than 1/8 full, or low fuel light may illuminate. If low fuel light does illuminate, replace Body Control Module (BCM). (Scheme 19)in CHIME TEST 3A. If low fuel light does not illuminate, go to next step.
- Using scan tool, actuate instrument cluster bulbs. If low fuel light illuminates, replace BCM. If low fuel light does not illuminate, remove instrument cluster and inspect low fuel light bulb. Replace as needed. If bulb is okay, replace instrument cluster circuit board.
INSTRUMENT CLUSTER TEST 4A - IDENTIFYING WARNING LIGHT PROBLEMS
Note. Perform INSTRUMENT CLUSTER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Ensure parking brake is completely released and place ignition switch in UNLOCK position. Using scan tool, select ELECTRO/MECH CLUSTER, then actuate ALL LAMPS, ODO/TRIP, and PRNDL LEDs. Identify problem(s) and perform indicated test(s) in WARNING LIGHT SYSTEM DIAGNOSTIC TEST DIRECTORY table.
Note. Brake warning light, fog light, oil warning light and turn signal indicator lights cannot be actuated using scan tool.
| Problem | Perform |
|---|---|
| Vacuum Fluorescent Display | INSTRUMENT CLUSTER TEST 7A |
| Coolant Temperature Indicator Light | INSTRUMENT CLUSTER TEST 8A |
| Low Fuel Warning Light | INSTRUMENT CLUSTER TEST 9A |
| Oil Warning Light | INSTRUMENT CLUSTER TEST 10A |
| Seat Belt Warning Light | INSTRUMENT CLUSTER TEST 11A |
| Brake Warning Light | INSTRUMENT CLUSTER TEST 12A |
| High Beam Indicator Light | INSTRUMENT CLUSTER TEST 13A |
| Turn Signal Indicator Lights | INSTRUMENT CLUSTER TEST 14A |
| Alternator Indicator Light (Battery Symbol) | INSTRUMENT CLUSTER TEST 15A |
| Cruise Control Indicator Light | INSTRUMENT CLUSTER TEST 16A |
| Check Engine Light | INSTRUMENT CLUSTER TEST 17A |
| Fog Light Indicator | INSTRUMENT CLUSTER TEST 18A |
| Deck Ajar Message | INSTRUMENT CLUSTER TEST 19A |
| Low Wash Message | INSTRUMENT CLUSTER TEST 20A |
| Air Bag Warning Light | (1) |
| Amber ABS Warning Light | (2) |
| (1) See AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section. (2) See BRAKE SYSTEM - ANTI-LOCK article in the BRAKES section. | |
| (1) | See AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section. |
| (2) | See BRAKE SYSTEM - ANTI-LOCK article in the BRAKES section. |
WARNING LIGHT SYSTEM DIAGNOSTIC TEST DIRECTORY
INSTRUMENT CLUSTER TEST 5A - CLUSTER ILLUMINATION
Note. Perform INSTRUMENT CLUSTER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition on. Using scan tool, read Body Control Module (BCM) fault messages. If scan tool does not display PANEL LAMP PWM OUTPUT FAILURE, go to next step. If scan tool displays PANEL LAMP PWM OUTPUT FAILURE, go to «INSTRUMENT CLUSTER TEST 5B»(ref-123786-S38743421512001101500000).
- Turn parking lights on. If parking lights illuminate, go to next step. If parking lights do not illuminate, repair parking lights as necessary.
- Using scan tool, read parking light status. If scan tool displays PARK LAMPS: ON, go to next step. If scan tool does not display PARK LAMPS: ON, go to «INSTRUMENT CLUSTER TEST 5F»(ref-123786-S35194360882001101500000).
- Using scan tool, read panel light sensor voltage. If scan tool displays zero volts, go to next step. If scan tool displays more than zero volts, go to step 6).
- While using scan tool to read panel light sensor voltage, rotate dimmer control switch between high and low. If voltage changes, go to next step. If voltage does not change, go to «INSTRUMENT CLUSTER TEST 5G»(ref-123786-S17932584032001101500000).
- Ensure parking lights are on and dimmer switch is at midway position. Locate instrument panel 10-pin connector at Body Control Module (BCM). (Scheme 19)in CHIME TEST 3A. Using scan tool in voltmeter mode, measure voltage at instrument panel 10-pin connector terminals No. 3 (Orange/Yellow wire), No. 4 (Orange/Brown wire), No. 9 (Orange wire) and No. 10 (Orange/Gray wire). As each terminal is backprobed, rotate dimmer switch from low to high. If voltage increases from zero volts to 12 volts at all terminals, go to next step. If voltage does not increase at any terminal, replace BCM.
- Disconnect instrument cluster Blue 13-pin connector and ensure connector is clean and not damaged. Using scan tool in voltmeter mode, measure voltage at terminal No. 10 (Orange/Yellow wire) on instrument cluster Blue 13-pin connector. If voltage is more than 5 volts, replace instrument cluster. If voltage is 5 volts or less, repair open in Orange/Yellow wire between instrument cluster and BCM.
INSTRUMENT CLUSTER TEST 5B - PANEL LIGHTS POWER CIRCUIT
Note. Perform INSTRUMENT CLUSTER TEST 5A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Using scan tool, erase all BCM Diagnostic Trouble Codes (DTCs). Start engine, turn parking lights on and allow engine to run for at least 2 minutes. Turn parking lights off. Turn engine off. Turn ignition on. Using scan tool, read BCM DTCs. If PANEL LAMP PWM OUTPUT FAILURE trouble code is not present, system is operating properly. If PANEL LAMP PWM OUTPUT FAILURE trouble code is present, go to next step.
- Turn ignition off. Disconnect instrument panel 10-pin connector at Body Control Module (BCM). (Scheme 19)in CHIME TEST 3A. Ensure connector is clean and not damaged. Using scan tool in ohmmeter mode, measure resistance at terminals No. 3 (Orange/Yellow wire), No. 4 (Orange/Brown wire), No. 9 (Orange wire) and No. 10 (Orange/Gray wire) instrument panel 10-pin connector. If resistance is less than 5 ohms at any connector terminal, go to next step. If resistance is 5 ohms or greater at any connector terminal, replace BCM.
- If resistance is less than 5 ohms at terminal No. 4, go to «INSTRUMENT CLUSTER TEST 5C»(ref-123786-S41480992482001101500000). If resistance is less than 5 ohms at terminal No. 3, go to «INSTRUMENT CLUSTER TEST 5D»(ref-123786-S30304784622001101500000). If resistance is less than 5 ohms at terminal No. 9, go to «INSTRUMENT CLUSTER TEST 5E»(ref-123786-S16653962622001101500000). If resistance is less than 5 ohms on connector terminal No. 10, go to next step.
- Remove shifter illumination light (automatic transaxle equipped only). If light is not okay, replace light. If light is okay, go to next step.
- Using scan tool in ohmmeter mode, measure resistance at terminal No. 10 (Orange/Gray wire) on instrument panel 10-pin connector. If resistance is less than 5 ohms, repair short to ground in Orange/Gray wire. If resistance is 5 ohms or greater, there is an intermittent short. Check for a pinched harness or a wire exposed to ground.
INSTRUMENT CLUSTER TEST 5C - PANEL LIGHTS POWER CIRCUIT
Note. Perform INSTRUMENT CLUSTER TEST 5A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Disconnect radio connectors and ensure connectors are clean and not damaged. Using external ohmmeter, measure resistance between ground and terminal No. 4 (Orange/Brown wire) on instrument panel 10-pin connector at Body Control Module (BCM). If resistance is less than 5 ohms, repair short to ground in Orange/Brown wire. If resistance is more than 5 ohms, replace radio.
INSTRUMENT CLUSTER TEST 5D - PANEL LIGHTS POWER CIRCUIT
Note. Perform INSTRUMENT CLUSTER TEST 5A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Disconnect instrument cluster connectors. Ensure connectors are clean and not damaged. Using external ohmmeter, measure resistance between ground and terminal No. 3 (Orange/Yellow wire) on instrument panel 10-pin connector at Body Control Module (BCM). If resistance is less than 5 ohms, repair short to ground in Orange/Yellow wire. If resistance is 5 ohms or greater, inspect instrument cluster lights and printed circuit board. If lights and printed circuit board are okay, replace Mechanical Instrument Cluster (MIC). If lights and printed circuit board are not okay, repair or replace as necessary.
INSTRUMENT CLUSTER TEST 5E - PANEL LIGHTS POWER CIRCUIT
Note. Perform INSTRUMENT CLUSTER TEST 5A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Disconnect Heater Ventilation Air Conditioning (HVAC) control panel. Ensure connectors are clean and not damaged. Using scan tool in ohmmeter mode, measure resistance at terminal No. 9 (Orange wire) on instrument panel 10-pin connector at Body Control Module (BCM). If resistance is 5 ohms or greater, replace HVAC control panel. If resistance is less than 5 ohms, inspect ashtray light. If ashtray light is okay, repair short to ground Orange wire. If ashtray light is not okay, replace light.
INSTRUMENT CLUSTER TEST 5F - PARKING LIGHT SWITCH OUTPUT CIRCUIT TO BCM
Note. Perform INSTRUMENT CLUSTER TEST 5A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Turn ignition and parking lights off. Remove Body Control Module (BCM) from junction block. (Scheme 19)and (Scheme 20) in CHIME TEST 3A. Turn parking lights on. Using external voltmeter, measure voltage between ground and terminal No. 8 on junction block 12-pin internal connector. If voltage is more than 10 volts, replace BCM. If voltage is 10 volts or less, repair Black/Yellow wire between parking light switch and junction block.
INSTRUMENT CLUSTER TEST 5G - DIMMER SWITCH SIGNAL CIRCUIT
Note. Perform INSTRUMENT CLUSTER TEST 5A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn parking lights on. While using scan tool to read panel light sensor voltage, rotate dimmer control switch between high and low. If voltage does not change and remains low, go to next step. If voltage does not change and remains high, go to step 4).
- Locate instrument panel 22-pin connector at Body Control Module (BCM). Do not disconnect connector. (Scheme 19)in CHIME TEST 3A. Using scan tool in voltmeter mode, backprobe connector. Measure voltage at terminal No. 18 (Red wire) on instrument panel 22-pin connector. While checking voltage, rotate dimmer switch. If voltage changes from zero to more than 10 volts, replace BCM. If voltage does not change, go to next step.
- Gain access to left side multifunction switch 10-pin connector, under steering wheel. (Scheme 22)and (Scheme 23). Using external voltmeter, backprobe connector. Measure voltage at terminal No. 6 (Red wire) on multifunction switch 10-pin connector. Rotate dimmer switch from high to low. If voltage changes from zero to more than 10 volts, repair open in Red wire. If voltage does not change, replace multifunction switch.
- Disconnect left side multifunction switch 10-pin connector and ensure connector is clean and not damaged. Using scan tool, read panel light sensor voltage. If voltage is more than 8 volts, go to next step. If voltage is 8 volts or less, replace multifunction switch.
- Turn ignition off. Disconnect instrument panel 22-pin connector at BCM. (Scheme 19)in CHIME TEST 3A. Turn ignition on with engine off. Using external voltmeter, measure voltage at terminal No. 18 (Red wire) on instrument panel 22-pin connector. If voltage is more than 0.3 volt, repair short to voltage on Red wire. If voltage is 0.3 volt or less, replace BCM.
Locating Steering Column Switches. Scheme 22
Locating Multifunction Connectors. Scheme 23
INSTRUMENT CLUSTER TEST 6A - GAUGES NOT GOING TO ZERO WHEN KEY IS TURNED OFF
Note. Perform INSTRUMENT CLUSTER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition off. Remove and inspect junction block fuse No. 7. If fuse is blown, go to «INSTRUMENT CLUSTER TEST 6B»(ref-123786-S20099905192001101500000). If fuse is okay, go to next step.
- Disconnect instrument cluster Red connector and ensure connector is clean and not damaged. (Scheme 23)in INSTRUMENT CLUSTER TEST 5G. Using external voltmeter, measure voltage at terminal No. 5 (Pink/Red wire) on instrument cluster Red 13-pin connector. If voltage is 10 volts or less, repair open Pink/Red wire. If voltage is more than 10 volts, replace instrument cluster.
INSTRUMENT CLUSTER TEST 6B - GAUGES NOT GOING TO ZERO WHEN KEY IS TURNED OFF
Note. Perform INSTRUMENT CLUSTER TEST 6A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Using external ohmmeter, measure resistance at component side terminal (Pink/Red wire) on fuse No. 7 socket in junction block. If resistance is less than 5 ohms, repair short to ground in Pink/Red wire. If resistance is 5 ohms or greater, replace fuse.
INSTRUMENT CLUSTER TEST 7A - VACUUM FLUORESCENT (VF) DISPLAY
Note. Perform INSTRUMENT CLUSTER TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition switch to UNLOCK position. Using scan tool, select PRND3L LED'S under ELECTRO/MECH actuators. If all of PRND3L characters and segments illuminate, stop actuation and go to next step. If all PRND3L characters and segments do not illuminate, replace vacuum fluorescent display module.
- Using scan tool, select ODO/TRIP under ELECTRO/MECH actuators vacuum fluorescent display. If all odometer/trip characters and segments illuminate, stop actuation and go to next step. If all odometer/trip characters and segments do not illuminate, replace vacuum fluorescent display module.
- Turn ignition on with engine off. Using scan tool, select TRANS TYPE from vehicle status monitor under BCM monitor displays. If transaxle status is MANUAL, go to step 5). If transaxle status is not MANUAL, go to next step.
- Using scan tool, read BCM fault messages. If ETAX PRNDL MESSAGE is present, go to «VEHICLE COMMUNICATIONS TESTS»(ref-123786-S29515023562001101500000) . If ETAX PRNDL MESSAGE is not present, odometer vacuum fluorescent display is operating properly.
- If transaxle status is MANUAL, PCM is for a manual transaxle. If vehicle is equipped with a manual transaxle, vacuum fluorescent display is operating properly. If vehicle is equipped with an automatic transaxle, install a PCM for an automatic transaxle.
INSTRUMENT CLUSTER TEST 8A - COOLANT TEMPERATURE LIGHT
Note. Perform INSTRUMENT CLUSTER TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition switch from OFF position to ON/RUN position. If coolant temperature light illuminates, go to next step. If coolant temperature light does not illuminate, go to step 3).
- Using scan tool, select LIMP-IN MONITOR under body monitors and read ECT SENSOR LIMP-IN status. If scan tool displays ECT SENSOR LIMP-IN: YES, see TESTS W/CODES article in the ENGINE PERFORMANCE section. If scan tool does not display YES and coolant temperature light does not stay on, light is operating properly. If coolant temperature light stays on, repair or replace Mechanical Instrument Cluster (MIC).
- Turn ignition switch to UNLOCK position. Using scan tool, actuate ALL LAMPS. If coolant temperature light illuminates, light is operating properly. If coolant temperature light does not illuminate, go to next step.
- Turn ignition off. Disconnect instrument cluster and ensure connectors are clean and not damaged. Remove and inspect coolant temperature bulb. (Scheme 24) If bulb is okay, go to next step. If bulb is defective, replace bulb.
- Inspect instrument cluster and ensure bulb socket is clean and not damaged. If instrument cluster is okay, replace Body Control Module (BCM). If instrument cluster is defective, repair or replace as necessary.
Locating Instrument Cluster Light Bulbs. Scheme 24
INSTRUMENT CLUSTER TEST 9A - LOW FUEL WARNING LIGHT
Note. Perform INSTRUMENT CLUSTER TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- If low fuel light is on when it should be off, replace Body Control Module (BCM). If low fuel light is off when it should be off and on when it should be on, go to next step.
- Turn ignition to UNLOCK position. Using scan tool, actuate ALL LAMPS. If low fuel light illuminates and then goes off, replace BCM. If low fuel light does not illuminate, go to next step.
- Disconnect instrument cluster and ensure connectors are clean and not damaged. Remove low fuel warning bulb and replace if defective. (Scheme 24)in INSTRUMENT CLUSTER TEST 8A. Inspect instrument cluster and ensure bulb socket is clean and not damaged. Repair or replace instrument cluster as necessary.
INSTRUMENT CLUSTER TEST 10A - OIL WARNING LIGHT
Note. Perform INSTRUMENT CLUSTER TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition off and ensure engine oil level is within specification. If engine oil level is within specification, go to next step.
- Turn ignition on with engine off. If oil warning light (oil can indicator) did not illuminate, go to «INSTRUMENT CLUSTER TEST 10B»(ref-123786-S00493099072001101500000). If oil warning light did illuminate, turn ignition off and go to next step.
- Locate oil pressure switch at right rear of 2.0L and 2.4L engines, or front of 2.5L engine and remove switch. Connect an external oil pressure gauge in place of oil pressure switch. Start engine and allow engine to reach normal operating temperature. If external oil pressure gauge shows engine oil pressure is 4 psi or greater, go to next step. If gauge shows engine oil pressure is less than 4 psi, see appropriate article in the ENGINES section.
- Turn engine off with ignition on. If oil warning light is on, go to next step. If oil warning light is off, replace oil pressure switch.
- Turn ignition off. Disconnect instrument cluster Blue 13-pin connector and ensure connector is clean and not damaged. (Scheme 24)in INSTRUMENT CLUSTER TEST 8A. Using scan tool in ohmmeter mode, measure resistance at terminal No. 12 (Gray wire) on Blue 13-pin connector. If resistance is less 5 ohms, repair short to ground in Gray wire or Gray/White wire between instrument cluster and oil pressure switch. If resistance is 5 ohms or greater, repair or replace instrument cluster as necessary.
INSTRUMENT CLUSTER TEST 10B - OIL WARNING LIGHT
Note. Perform INSTRUMENT CLUSTER TEST 10A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Locate oil pressure switch at right rear of 2.0L and 2.4L engines, or front of 2.5L engine and disconnect switch 2-pin connector. Connect a jumper wire between oil pressure switch 2-pin connector terminal No. 2 (Gray or Gray/White wire) and ground. If oil warning light (oil can indicator) does not illuminate, leave jumper wire connected and go to next step. If oil warning light illuminates, replace oil pressure switch.
- Disconnect instrument cluster Blue 13-pin connector and ensure connector is clean and not damaged. Turn ignition on with engine off. Using external voltmeter, measure voltage between ground and terminal No. 5 (Light Green/Black wire) on instrument cluster Blue 13-pin connector. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Light Green/Black wire.
- Turn ignition off. Ensure jumper wire is still connected between ground and terminal No. 2 (Gray wire) on oil pressure switch 2-pin connector. Using external ohmmeter, measure resistance between ground and terminal No. 12 (Gray wire) on instrument cluster Blue 13-pin connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in Gray wire between instrument cluster and oil pressure switch.
- Remove oil warning bulb (oil can indicator) from instrument cluster. (Scheme 24)in INSTRUMENT CLUSTER TEST 8A. If bulb is defective, replace light bulb. If bulb is okay, repair or replace instrument cluster as necessary.
INSTRUMENT CLUSTER TEST 11A - SEAT BELT WARNING LIGHT
Note. Perform INSTRUMENT CLUSTER TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition switch from OFF position to ON (RUN) position. If seat belt warning light illuminates and then goes off, system is operating properly. If seat belt warning light does not illuminate, go to next step.
- Turn ignition switch to UNLOCK position. Using scan tool, actuate seat belt warning light. If seat belt warning light does not illuminate, go to next step. If seat belt warning light illuminates, replace Body Control Module (BCM).
- Turn ignition off. Disconnect instrument cluster and ensure connectors are clean and not damaged. Remove and inspect seat belt warning light bulb. (Scheme 24)in INSTRUMENT CLUSTER TEST 8A. If bulb is defective, replace bulb. If bulb is okay, repair or replace instrument cluster as necessary.
INSTRUMENT CLUSTER TEST 12A - BRAKE WARNING LIGHT
Note. Perform INSTRUMENT CLUSTER TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- If vehicle is equipped with anti-lock brakes, see BRAKE SYSTEM - ANTI-LOCK article in the BRAKES section. If vehicle is not equipped with anti-lock brakes, go to next step.
- Ensure parking brake lever is fully released and operates smoothly and does not bind. If parking brake lever does not operate properly, repair as necessary. If parking brake operates properly, go to next step.
- Turn ignition on with engine off. If brake warning light is not on, go to next step. If brake warning light is on, go to «INSTRUMENT CLUSTER TEST 12B»(ref-123786-S25690214302001101500000) .
- Crank engine and monitor brake warning light. If brake warning light illuminates as engine is cranking, go to next step. If brake warning light does not illuminate while engine is cranking, go to «INSTRUMENT CLUSTER TEST 12C»(ref-123786-S00836354292001101500000) .
- Apply parking brake lever. If brake warning light does not illuminate, go to «INSTRUMENT CLUSTER TEST 12D»(ref-123786-S18837775562001101500000) . If brake warning light illuminates, go to «INSTRUMENT CLUSTER TEST 12E»(ref-123786-S28129797882001101500000) .
INSTRUMENT CLUSTER TEST 12B - BRAKE WARNING LIGHT
Note. Perform INSTRUMENT CLUSTER TEST 12A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Inspect brake fluid reservoir level. If brake fluid level is low, fill to proper level and perform «TEST VER-1A - VERIFICATION PROCEDURE»(ref-123786-S20142393082001101500000). If brake fluid reservoir level is okay, go to next step.
- Disconnect brake fluid level switch 2-pin connector and ensure connector is clean and not damaged. If brake warning light goes out, replace brake fluid level switch. If brake warning light does not go out, go to next step.
- Disconnect parking brake switch connector. If brake warning light goes out, replace parking brake switch. If brake warning light does not go out, go to next step.
- Turn ignition off. Disconnect instrument cluster and ensure connectors are clean and not damaged. (Scheme 24)in INSTRUMENT CLUSTER TEST 8A. Turn ignition on. Using scan tool in ohmmeter mode, measure resistance at terminal No. 6 (Gray/Dark Blue wire) on instrument cluster Blue 13-pin connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair or replace instrument cluster as necessary.
- Disconnect ignition switch 10-pin connector and ensure connector is clean and not damaged. (Scheme 22)in INSTRUMENT CLUSTER TEST 5G. Using scan tool in ohmmeter mode, measure resistance at terminal No. 6 (Gray/Dark Blue wire) on instrument cluster Blue 13-pin connector. If resistance is less than 5 ohms, repair short to ground in Gray/Dark Blue wire. If resistance is 5 ohms or greater, replace ignition switch.
INSTRUMENT CLUSTER TEST 12C - BRAKE WARNING LIGHT
Note. Perform INSTRUMENT CLUSTER TEST 12A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition off. Disconnect ignition switch 10-pin connector. (Scheme 22)in INSTRUMENT CLUSTER TEST 5G. Using external ohmmeter, measure resistance between ground and terminal No. 5 (Black wire) on ignition switch 10-pin connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open in Black wire.
- Reconnect ignition switch 10-pin connector. Turn ignition on with engine off. Using a jumper wire, backprobe ignition switch 10-pin connector between terminal No. 4 (Gray/Dark Blue wire) and ground. If brake warning light does not illuminate, go to next step. If brake warning light illuminates, replace ignition switch.
- Disconnect instrument cluster and ensure connectors are clean and not damaged. DO NOT disconnect jumper wire from ignition switch 10-pin connector. Using external ohmmeter, measure resistance between ground and terminal No. 6 (Gray/Dark Blue wire) on instrument cluster Blue 13-pin connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open in Gray/Dark Blue wire between instrument cluster and ignition switch.
- Remove and inspect Red brake warning light bulb. (Scheme 24)in INSTRUMENT CLUSTER TEST 8A. If bulb is defective, replace bulb. If bulb is okay, replace instrument cluster.
INSTRUMENT CLUSTER TEST 12D - BRAKE WARNING LIGHT
Note. Perform INSTRUMENT CLUSTER TEST 12A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
Disconnect parking brake switch connector and ensure connector is clean and not damaged. Connect a jumper wire between parking brake switch connector and ground. If brake warning light illuminates, replace parking brake switch. If brake warning light does not illuminate, repair open Gray wire between parking brake switch and instrument cluster.
INSTRUMENT CLUSTER TEST 12E - BRAKE WARNING LIGHT
Note. Perform INSTRUMENT CLUSTER TEST 12A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition off. Disconnect brake fluid level switch 2-pin connector at master cylinder and ensure connector is clean and not damaged. Connect a jumper wire between brake fluid level switch connector terminals. Turn ignition on with engine off. If brake warning light does not illuminate, disconnect jumper wire and go to next step. If brake warning light illuminates, replace brake fluid level switch.
- Connect a jumper wire between ground and terminal No. 2 (Gray/Dark Blue wire) on brake fluid level switch connector. If brake warning light comes on, repair open in Black wire. If parking brake light does not illuminate and testing was because light did not illuminate when brake fluid reservoir was empty, replace low brake fluid switch. If parking brake light does not illuminate and brake fluid level was okay, system is operating properly.
INSTRUMENT CLUSTER TEST 13A - HIGH BEAM INDICATOR LIGHT
Note. Perform INSTRUMENT CLUSTER TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition on with engine off. Turn headlights high beam on. If headlights high beam illuminate, go to next step. If headlights high beam do not illuminate, see HEADLIGHTS in the SYSTEM WIRING DIAGRAMS article in the WIRING DIAGRAMS section
- Using scan tool, read HIGH BEAM SENSE. If high beam sense is ON, go to next step. If high beam sense is not ON, go to step 5).
- Turn ignition switch to UNLOCK position. Using scan tool, actuate ALL LAMPS. If high beam indicator light illuminates, system is operating properly. If high beam indicator light does not illuminate, go to next step.
- Disconnect instrument cluster and ensure connectors are clean and not damaged. (Scheme 24)in INSTRUMENT CLUSTER TEST 8A. Remove and inspect high beam indicator bulb. If bulb is defective, replace bulb. If bulb is okay, repair or replace instrument cluster.
- Turn headlights and ignition off. Disconnect BCM from junction block. Turn headlights high beam on. Turn ignition on with engine off. Using scan tool in voltmeter mode, measure voltage at terminal No. 1 on junction block 12-pin internal connector. (Scheme 20)in CHIME TEST 3A. If voltage is 10 volts or less, replace junction block. If voltage is more than 10 volts, replace BCM.
INSTRUMENT CLUSTER TEST 14A - TURN SIGNAL INDICATOR LIGHTS
Note. Perform INSTRUMENT CLUSTER TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Ensure parking lights operate properly. If parking lights operate correctly, go to next step. If parking lights do not operate correctly, see HEADLIGHTS in the SYSTEM WIRING DIAGRAMS article in the WIRING DIAGRAMS section.
- Disconnect instrument cluster. Ensure connectors are clean and not damaged. (Scheme 24)in INSTRUMENT CLUSTER TEST 8A. Remove and inspect both turn signal light bulbs. If bulbs are okay, go to next step. If bulbs are defective, replace bulbs.
- Using external voltmeter, measure voltage between ground and terminal No. 1 (Tan/Brown wire) on instrument cluster Red 13-pin connector. Turn ignition on. Turn right turn signal on. If voltage increases to more than 10 volts, go to next step. If voltage does not increase to more than 10 volts, repair open in Tan/Brown wire.
- Using external voltmeter, measure voltage between ground and terminal No. 2 (Light Green/Tan wire) on instrument cluster Blue 13-pin connector. Turn ignition on. Turn left turn signal on. If voltage increases to more than 10 volts, repair or replace instrument cluster. If voltage does not increase to more than 10 volts, repair open in Light Green/Tan wire.
INSTRUMENT CLUSTER TEST 15A - ALTERNATOR LIGHT (BATTERY SYMBOL)
Note. Perform INSTRUMENT CLUSTER TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Start engine. Using scan tool, read CHARGING LIMP-IN status. If status is YES, see TESTS W/CODES article in the ENGINE PERFORMANCE section. If status is not YES, go to next step.
- Turn ignition off. Turn ignition switch from OFF position to ON/RUN position and observe alternator light (battery symbol). If alternator light does not illuminate, go to next step. If alternator light illuminates, system is operating properly.
- Turn ignition switch to UNLOCK position. Using scan tool, actuate ALL LAMPS. If alternator light does not illuminate, go to next step. If alternator light illuminates, replace BCM.
- Turn ignition off. Disconnect instrument cluster. Ensure connectors are clean and not damaged. (Scheme 24)in INSTRUMENT CLUSTER TEST 8A. Remove and inspect alternator light bulb. Ensure bulb socket is clean and not damaged. If bulb is defective, replace bulb. If bulb is okay, repair or replace instrument cluster as necessary.
INSTRUMENT CLUSTER TEST 16A - CRUISE CONTROL LIGHT
Note. Perform INSTRUMENT CLUSTER TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- If cruise control light is the only problem with cruise control system, go to next step. If there are more problems than just cruise control light, see CRUISE CONTROL SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section.
- Turn ignition switch from OFF position to ON/RUN position. If cruise control light does not illuminate and then go off, go to next step. If cruise control light illuminates and then goes off, system is operating properly.
- Turn ignition switch to UNLOCK position. Using scan tool, actuate ALL LAMPS. If cruise control light does not illuminate, go to next step. If cruise control light illuminates and then goes off, replace BCM.
- Disconnect instrument cluster. Ensure connectors are clean and not damaged. (Scheme 24)in INSTRUMENT CLUSTER TEST 8A. Remove and inspect cruise control light bulb. Ensure bulb socket is clean and not damaged. If bulb is defective, replace bulb. If bulb is okay, repair or replace instrument cluster as necessary.
INSTRUMENT CLUSTER TEST 17A - CHECK ENGINE LIGHT
Note. Perform INSTRUMENT CLUSTER TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Start engine. Using scan tool, select vehicle status monitor under body monitor. Read check engine lamp status. If check engine lamp status is not ON, go to next step. If check engine lamp status is ON, see TESTS W/CODES article in the ENGINE PERFORMANCE section.
- Turn ignition switch from OFF position to ON/RUN position. If check engine light does not illuminate, go to next step. If check engine light illuminates and then goes off, system is operating properly.
- Turn ignition switch to UNLOCK position. Using scan tool, actuate ALL LAMPS. If check engine light does not illuminate, go to next step. If check engine light illuminates, replace BCM.
- Turn ignition off. Disconnect instrument cluster. Ensure connectors are clean and not damaged. (Scheme 24)in INSTRUMENT CLUSTER TEST 8A. Remove and inspect check engine light bulb. Ensure bulb socket is clean and not damaged. If bulb is defective, replace bulb. If bulb is okay, repair or replace instrument cluster as necessary.
INSTRUMENT CLUSTER TEST 18A - FOG LIGHT INDICATOR
Note. Perform INSTRUMENT CLUSTER TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn headlight on low beam. Ensure headlight low beam is operating properly. Turn fog lights on. If headlights and fog lights are not operating properly, repair lights as necessary. If headlights and fog lights are operating properly, go to next step.
- Disconnect instrument cluster. Ensure connectors are clean and not damaged. (Scheme 24)in INSTRUMENT CLUSTER TEST 8A. Remove and inspect fog light indicator light bulb. If bulb is okay, go to next step. If bulb is defective, replace fog light indicator light bulb.
- Using scan tool in voltmeter mode, measure voltage at terminal No. 1 (Light Blue/Orange wire) on instrument cluster Blue 13-pin connector. Turn ignition and fog lights on. If voltage is 10 volts or less, repair Light Blue/Orange wire. If voltage is more than 10 volts, repair or replace instrument cluster.
INSTRUMENT CLUSTER TEST 19A - DECK AJAR MESSAGE
Note. Perform INSTRUMENT CLUSTER TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition on and open trunk. Disconnect wire from trunk latch. Connect jumper wire between latch ajar connector and ground. Observe odometer display. If display changed from MILES to DECK, replace trunk latch assembly. If display did not change, go to next step.
- With jumper wire connected, remove instrument cluster. Disconnect instrument cluster Red connector. Using external ohmmeter, measure resistance between ground and terminal No. 13 (Tan/Black wire) on Red connector. If resistance is less than 5 ohms, replace vacuum flouresent PRNDL display. If resistance is 5 ohms or greater, repair trunk ajar open circuit.
INSTRUMENT CLUSTER TEST 20A - LO WASH MESSAGE
Note. Perform INSTRUMENT CLUSTER TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Disconnect washer level sensor connector. Connect jumper wire between connector terminals. Turn ignition on. Observe odometer display. If display changed from MILES to LO WASH, replace level sensor inside washer reservoir. If display did not change, go to next step.
- Remove jumper wire. Connect jumper wire between ground and terminal No. 2 (Black/Tan wire) on washer level sensor connector. Observe odometer display. If display changed from MILES to LO WASH, repair open Black wire to wash level sensor. If display did not change, go to next step.
- With jumper wire connected, remove instrument cluster. Disconnect instrument cluster Red connector. Using external ohmmeter, measure resistance between ground and terminal No. 8 (Black/Tan wire) on Red connector. If resistance is less than 5 ohms, replace vacuum flouresent PRNDL display. If resistance is 5 ohms or greater, repair open Black/Tan wire.
VTSS TEST 1A - IDENTIFYING VEHICLE THEFT SECURITY SYSTEM (VTSS) PROBLEMS
Note. Perform SYMPTOM ID TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Note. If complaint is: VTSS indicator lamps stay on constantly (30 seconds after key is turned on) or while driving vehicle, see TEST 13A in VEHICLE COMMUNICATIONS.
- Connect scan tool to Data Link Connector (DLC) and select THEFT ALARM. If scan tool displays NO RESPONSE, perform «VTSS TEST 2A»(ref-123786-S33239165682001101500000) . If scan tool reports a bus failure message, see «VEHICLE COMMUNICATIONS TESTS»(ref-123786-S29515023562001101500000) .
- Using scan tool, select BODY. Select BODY COMPUTER and then READ DTCs. If BATTERY POWER TO MODULE fault message is present, see «VEHICLE COMMUNICATIONS TESTS»(ref-123786-S29515023562001101500000) . If DRIVER DOOR DISARM SWITCH INPUT is present, see «VTSS TEST 11A»(ref-123786-S08420272712001101500000) . If PASSENGER DOOR DISARM SWITCH INPUT is present, see «VTSS TEST 12A»(ref-123786-S36800012532001101500000) . Go to next step.
- Using scan tool, select THEFT ALARM. Select MONITOR DISPLAY and read VTSS status. If VTSS mode is not disarmed, perform «VTSS TEST 1B»(ref-123786-S16992480492001101500000) . If VTSS mode is disarmed, go to next step.
- Turn ignition on. Using scan tool, select THEFT ALARM. Select MISCELLANEOUS and CHANGE MODE. Select DIAGNOSTICS to put VTSS in diagnostics mode. Follow instructions displayed by scan tool. If PUT IGNITION IN OFF POSITION displays, go to next step (VTSS is in diagnostics mode). If PUT IGNITION IN OFF POSITION does not display, perform «VTSS TEST 3A»(ref-123786-S41704808022001101500000) .
- When VTSS is put into diagnostics mode, horn should sound 2 times and headlights and VTSS indicator light should flash. If horn sounds 2 times and headlights and VTSS indicator light flash, go to next step. If horn does not sound, perform «VTSS TEST 4A»(ref-123786-S23509387072001101500000) . If VTSS indicator light does not flash, perform «VTSS TEST 5A»(ref-123786-S34854616612001101500000) . If headlights do not flash, perform «VTSS TEST 6A»(ref-123786-S04087758772001101500000) .
- With scan tool still connected to DLC, remove key from ignition switch. Open and close each door, then use key to turn each front door from lock to unlock position. If horn sounds after each action, go to step 8). If horn does not sound after each action, perform test indicated. See VEHICLE THEFT SECURITY SYSTEM DIAGNOSTIC TEST DIRECTORY table. VEHICLE THEFT SECURITY SYSTEM DIAGNOSTIC TEST DIRECTORY Problem Perform Left Front Door «VTSS TEST 7A»(ref-123786-S04867835232001101500000) Right Front Door «VTSS TEST 8A»(ref-123786-S34037582032001101500000) Right Rear Door «VTSS TEST 9A»(ref-123786-S21621435362001101500000) Left Rear Door «VTSS TEST 10A»(ref-123786-S14636281362001101500000) Left Front Door Key Cylinder (Disarm Circuit) «VTSS TEST 11A»(ref-123786-S08420272712001101500000) Right Front Door Key Cylinder (Disarm Circuit) «VTSS TEST 12A»(ref-123786-S36800012532001101500000)
- Turn ignition switch to ON position. If horn sounds, go to next step. If horn does not sound, perform «VTSS TEST 3A»(ref-123786-S41704808022001101500000) .
- Using scan tool, select THEFT ALARM. Select MONITOR DISPLAY and read VTSS status. If VTSS status is not DISARMED, or PCM is not OK TO ARM/OK TO RUN ENGINE, go to next step. If VTSS status is DISARMED and PCM is OK TO ARM/OK TO RUN ENGINE, system is functioning properly.
- If VTSS status is other than DISARMED, perform «VTSS TEST 1B»(ref-123786-S16992480492001101500000) . If PCM status is 1) NO RESPONSE, 2) NO RESPONSE, go to «TEST 13A»(ref-123786-S28663377552001101500000) in VEHICLE COMMUNICATIONS. If PCM status is 1) OK TO ARM VTSS, 2) NOT OK TO RUN ENGINE, replace Powertrain Control Module (PCM). If there is a problem with RKE arm/disarm function, see «VTSS TEST 8A»(ref-123786-S34037582032001101500000) .
- If VTSS light stays on constantly during arming process (15 seconds) but flashes properly when armed, go to «VTSS TEST 4C»(ref-123786-S02149927882001101500000) . If RKE arm/disarm function is not operating correctly, go to «POWER DOOR LOCK TEST 8A»(ref-123786-S31025609252001101500000) .
- On JX models, if garage door opener and decklid release lockout does not function correctly, go to «VTSS TEST 13A»(ref-123786-S20198526452001101500000) . If decklid release does not function using RKE transmitter, go to «VTSS TEST 14A»(ref-123786-S29447949412001101500000) .
VTSS TEST 1B - DISARMING VTSS
Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Turn ignition off. Put key in left front door and turn to UNLOCK position. Using key, turn ignition on. Using scan tool, read VTSS status. If scan tool displays CURRENT MODE DISARMED, system is functioning properly. Return to VTSS TEST 1A . If scan tool does not display CURRENT MODE DISARMED, perform VTSS TEST 11A .
VTSS TEST 2A - VTSS MODULE NO RESPONSE
Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Open trunk and inspect area around trunk cylinder. If key cylinder is equipped with a trunk cylinder knock out switch, go to next step. If key cylinder is not equipped with a trunk cylinder knock out switch, system is not equipped with VTSS.
- Turn ignition on. Using scan tool, select SENSORS. Read ignition off/run voltage. If scan tool displays voltage more than 11 volts, go to next step. If scan tool displays 11 volts or less, go to «VTSS TEST 3A»(ref-123786-S41704808022001101500000).
- Access Body Control Module (BCM) 22-pin connector. (Scheme 20)in CHIME TEST 3A. Do not disconnect connector. Connect jumper wire between ground and terminal No. 9 (Violet/Yellow wire) on 22-pin connector. Go to next step.
- Using scan tool, select BODY, then BODY COMPUTER. Select MISCELLANEOUS, then ENABLE THE VTSS. If system does not enable, replace BCM. If system does enable, remove jumper wire. Repair open trunk cylinder switch circuit (Violet/Yellow wire).
VTSS TEST 3A - FUSED IGNITION SWITCH OUTPUT CIRCUIT TO BCM
Note. Perform VTSS TEST 2A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Remove and inspect fuse No. 11 (10-amp) located in junction block. (Scheme 20)in CHIME TEST 3A. If fuse is okay, go to step 4). If fuse is open, turn ignition off and go to next step.
- Using external ohmmeter, measure resistance between ground and terminal No. 19 (Red/Violet wire) on fuse No. 11 socket. (Scheme 20)in CHIME TEST 3A. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, replace fuse No. 11.
- Turn ignition off. Remove BCM from junction block and ensure connector is clean and not damaged. (Scheme 18)and (Scheme 20) in CHIME TESTS 2A and 3A. Using external ohmmeter, measure resistance between ground and terminal No. 19 (Red/Violet wire) on fuse No. 11 socket. If resistance is less than 5 ohms, repair ignition switch side (terminal No. 20) of fuse No. 11 and replace fuse. If resistance is 5 ohms or greater, replace Body Control Module (BCM) and fuse No. 11.
- If fuse No. 11 is okay, turn ignition on. Using external voltmeter, measure voltage between ground and terminal No. 20 (Dark Green/Red wire) on fuse No. 11 socket. (Scheme 20)in CHIME TEST 3A. If voltage is greater than 10 volts, reinstall fuse No. 11 and go to next step. If voltage is 10 volts or less, repair open in Dark Green/Red wire between junction block and ignition switch.
- Turn ignition off. Remove Body Control Module (BCM) from junction block and ensure connectors are clean and not damaged. Turn ignition on with engine off. Using external voltmeter, measure voltage between ground and terminal No. 6 on junction block internal 12-pin connector. (Scheme 20)in CHIME TEST 3A. If voltage is 10 volts or less, replace junction block. If voltage is greater than 10 volts, replace BCM.
VTSS TEST 4A - HORN CIRCUITS
Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Depress horn button on steering wheel. If horn sounds, go to next step. If horn does not sound, go to step 4).
- Using scan tool, read trunk key cylinder switch status. If scan tool displays SWITCH: CLOSED, go to next step. If scan tool does not display SWITCH: CLOSED, go to «VTSS TEST 4C»(ref-123786-S02149927882001101500000).
- Turn ignition off. Remove Body Control Module (BCM) from junction block and ensure connectors are clean and not damaged. Using external voltmeter, measure voltage between ground and terminal No. 7 on junction block internal 12-pin connector. (Scheme 20)in CHIME TEST 3A. If voltage is 10 volts or less, replace junction block. If voltage is greater than 10 volts, replace BCM.
- Remove horn relay located in junction block. (Scheme 20)in CHIME TEST 3A. Using external voltmeter, measure voltage between ground and terminal No. 8 on horn relay socket. If voltage is greater than 10 volts, go to next step. If voltage is less than 10 volts, go to «VTSS TEST 4B»(ref-123786-S09805160942001101500000).
- Using external voltmeter, measure voltage between ground and terminal No. 6 on horn relay socket. (Scheme 20)in CHIME TEST 3A. If voltage is greater than 10 volts, go to next step. If voltage is 10 volts or less, replace junction block.
- Connect a jumper wire between terminals No. 8 and 10 on horn relay socket. (Scheme 20)in CHIME TEST 3A. If horns sound, go to next step. If horns do not sound, repair open in Dark Green/Pink wire between junction block and horn(s).
- Turn ignition off. Remove Body Control Module (BCM) from junction block and ensure connector is clean and not damaged. Using external ohmmeter, measure resistance between terminal No. 7 on BCM 12-pin connector and terminal No. 7 on horn relay socket. (Scheme 20)in CHIME TEST 3A. If resistance is less than 5 ohms, reinstall horn relay and go to next step. If resistance is 5 ohms or greater, replace junction block.
- Using external voltmeter, measure voltage between ground and terminal No. 7 on junction block internal 12-pin connector. If voltage is 10 volts or less, replace horn relay. If voltage is greater than 10 volts, replace BCM.
VTSS TEST 4B - FUSED BATTERY VOLTAGE FOR HORNS
Note. Perform VTSS TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Remove and inspect fuse No. 8 (20-amp), located in junction block. (Scheme 20)in CHIME TEST 3A. If fuse is okay, go to next step. If fuse is open, go to step 3).
- Using external voltmeter, measure voltage between ground and terminal No. 14 (Pink/White wire) on fuse No. 8 socket. If voltage is 10 volts or less, repair open in Pink/White wire between junction block and Power Distribution Center (PDC). If voltage is greater than 10 volts, replace junction block.
- Disconnect horns and remove horn relay. (Scheme 20)in CHIME TEST 3A. Using scan tool in ohmmeter mode, measure resistance at terminal No. 10 on horn relay socket. If resistance is less than 5 ohms, repair short to ground in Dark Green/Pink wire between junction block and horn(s). If resistance is 5 ohms or greater, replace fuse No. 8.
VTSS TEST 4C - TRUNK KEY CYLINDER SWITCH SENSE CIRCUIT
Note. Perform VTSS TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Disconnect trunk key cylinder switch 2-pin connector. Ensure connector is clean and not damaged. Connect a jumper wire between cylinder switch harness connector terminals. Using scan tool, read trunk key cylinder switch status. If scan tool does not display SWITCH: CLOSED, go to next step. If scan tool displays SWITCH: CLOSED, replace trunk key cylinder switch.
- Connect jumper wire between ground and terminal No. 1 (Violet/Yellow wire) on trunk key cylinder switch connector. If scan tool does not display SWITCH: CLOSED, go to next step. If scan tool displays SWITCH: CLOSED, repair open in Black wire between 2-pin connector and ground.
- Locate Body Control Module (BCM) 20-pin connector at junction block. (Scheme 18)and (Scheme 19) in CHIME TESTS 2A and 3A. Do not disconnect connector. Backprobe jumper wire between terminal No. 1 (Violet/Yellow wire) on BCM 20-pin connector and ground. If scan tool displays trunk key cylinder SWITCH: CLOSED, repair open in Violet/Yellow wire between BCM 20-pin connector and trunk key cylinder 2-pin connector. If scan tool does not display trunk key cylinder SWITCH: CLOSED, replace BCM.
VTSS TEST 5A - VTSS INDICATOR LIGHT
Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Using scan tool, select THEFT ALARM, then MONITOR DISPLAY. Read VTSS status. If scan tool displays PCM status as 1) NO RESPONSE, 2) NO RESPONSE, see «VEHICLE COMMUNICATIONS TESTS»(ref-123786-S29515023562001101500000). If scan tool does not display PCM status as 1) NO RESPONSE, 2) NO RESPONSE and VTSS indicator light is on constantly, go to «VTSS TEST 5B»(ref-123786-S34128079822001101500000). If scan tool does not display PCM status as 1) NO RESPONSE, 2) NO RESPONSE and VTSS indicator light is not on constantly, go to next step.
- Turn ignition off. Locate instrument panel 10-pin connector at BCM/junction block. Disconnect connector. Ensure connector is clean and not damaged. Connect a jumper wire between ground and terminal No. 1 (Black/Orange wire) on BCM 10-pin connector. If VTSS indicator light does not illuminate, go to next step. If VTSS indicator light illuminates, replace Body Control Module (BCM).
- Locate and disconnect instrument cluster Red 13-pin connector behind instrument cluster. (Scheme 24)in INSTRUMENT CLUSTER TEST 8A. Ensure connector is clean and not damaged. Using scan tool in voltmeter mode, measure voltage at terminal No. 5 (Pink/Red wire) on instrument cluster Red 13-pin connector. If voltage is greater than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Pink/Red wire circuit.
- Using an external ohmmeter, measure resistance between terminal No. 7 (Black/Orange wire) on instrument cluster Red 13-pin connector and terminal No. 4 (Black/Orange wire) instrument panel 10-pin connector at BCM. If resistance is 5 ohms or greater, repair open in Black/Orange wire circuit. If resistance is less than 5 ohms, replace VTSS indicator light.
VTSS TEST 5B - VTSS INDICATOR LIGHT
Note. Perform VTSS TEST 5A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Disconnect Body Control Module (BCM) instrument panel 10-pin connector and ensure connector is clean and not damaged. (Scheme 19)in CHIME TEST 3A. If VTSS indicator light goes off, replace BCM. If VTSS indicator light stays on, repair short to ground in Black/Orange wire circuit between BCM and VTSS indicator light.
VTSS TEST 6A - HEADLIGHT CIRCUIT
Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn low beam headlights on. If headlights do not illuminate, check headlight power and ground circuits, headlight and dimmer switches, and/or broken headlight circuit connectors or splices. If headlights illuminate, turn headlights off. Turn ignition on. Using scan tool, select BODY CONTROL COMPUTER INPUT/OUTPUT display. Read KEY-IN IGNITION SW status. If scan tool displays SWITCH: CLOSED, go to next step. If scan tool does not display SWITCH: CLOSED, go to «VTSS TEST 6B»(ref-123786-S26030037712001101500000).
- Using scan tool, actuate headlight relay. If headlights toggle on and off, replace Body Control Module (BCM). If headlights do not toggle on and off, locate headlight delay relay in junction block. (Scheme 20)in CHIME TEST 3A. Remove headlight delay relay and ensure connector is clean and not damaged. Turn headlights on and go to next step.
- Using external voltmeter, measure voltage between ground and terminal No. 5 on headlight delay relay socket. (Scheme 20)in CHIME TEST 3A. If voltage is greater than 10 volts, go to next step. If voltage is 10 volts or less, repair open in headlight switch output circuit between junction block and splice.
- Turn headlights off. Using external voltmeter, measure voltage between ground and terminal No. 3 on headlight delay relay socket. (Scheme 20)in CHIME TEST 3A. If voltage is greater than 10 volts, go to next step. If voltage is less than 10 volts, repair Red/White wire between Power Distribution Center (PDC) and junction block.
- Using external voltmeter, measure voltage between ground and terminal No. 1 on headlight delay relay socket. (Scheme 20)in CHIME TEST 3A. If voltage is greater than 10 volts, go to next step. If voltage is 10 volts or less, replace junction block.
- Turn ignition off and disconnect Body Control Module (BCM). Using external ohmmeter, measure resistance between terminal No. 5 and terminal No. 2 on headlight delay relay socket. (Scheme 20)in CHIME TEST 3A. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, replace junction block.
- Install headlight delay relay. Using external voltmeter, measure voltage between ground and terminal No. 5 on junction block internal 12-pin connector. (Scheme 20)in CHIME TEST 3A. If voltage is greater than 10 volts, replace BCM. If voltage is 10 volts or less, replace headlight delay relay.
VTSS TEST 6B - KEY-IN-IGNITION SWITCH
Note. Perform VTSS TEST 6A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Locate and disconnect key-in ignition switch 2-pin connector in ignition switch. (Scheme 22)in INSTRUMENT CLUSTER TEST 5G. Ensure connector is clean and not damaged. Using external ohmmeter, measure resistance between ground and terminal No. 2 (Black/White wire) on 2-pin connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open in Black/White wire.
- Connect a jumper wire between key-in ignition 2-pin connector terminals. Using scan tool, read key-in ignition status. If scan tool does not display KEY-IN IGN: CLOSED, go to next step. If scan tool displays KEY-IN IGN: CLOSED, replace ignition switch. See STEERING COLUMN SWITCHES article in the ACCESSORIES/SAFETY EQUIPMENT section.
- Locate instrument panel 22-pin connector at BCM/junction block. (Scheme 20)in CHIME TEST 3A. DO NOT disconnect connector. Backprobe jumper wire between terminal No. 17 (Light Blue wire) on instrument panel 22-pin connector and ground. Using scan tool, read key-in ignition status. If scan tool displays KEY-IN IGN: CLOSED, repair open in Light Blue wire circuit between BCM 22-pin connector and key-in ignition switch 2-pin connector. If scan tool does not display KEY-IN IGN: CLOSED, replace BCM.
VTSS TEST 7A - LEFT FRONT DOOR AJAR
Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
Ensure door is closed. Using scan tool, read left front door ajar switch status. If scan tool displays LF DOOR AJAR: CLOSED, perform DOOR AJAR TEST 2A . If scan tool does not display LF DOOR AJAR: CLOSED, perform DOOR AJAR TEST 3A .
VTSS TEST 8A - RIGHT FRONT DOOR AJAR
Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
Ensure all doors are closed. Using scan tool read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, perform DOOR AJAR TEST 4A . If scan tool does not display DOOR AJAR: CLOSED, perform DOOR AJAR TEST 5A .
VTSS TEST 9A - RIGHT REAR DOOR AJAR
Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
Ensure all doors are closed. Using scan tool read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, perform DOOR AJAR TEST 4A . If scan tool does not display DOOR AJAR: CLOSED, perform DOOR AJAR TEST 6A .
VTSS TEST 10A - LEFT REAR DOOR AJAR
Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
Ensure all doors are closed. Using scan tool read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, perform DOOR AJAR TEST 4A . If scan tool does not display DOOR AJAR: CLOSED, perform DOOR AJAR TEST 7A .
VTSS TEST 11A - LEFT VTSS DISARM MALFUNCTION
Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition on with engine off. Using scan tool, select THEFT ALARM, SENSOR DISPLAY and read LF DR DISARM voltage. If no voltage is displayed, go to «VTSS TEST 11B»(ref-123786-S06985534452001101500000). If voltage is displayed, access driver's door key lock cylinder harness. Go to next step.
- Disconnect lock cylinder connector. Using scan tool, read LF DR DISARM voltage. If no voltage is displayed, replace driver's door key lock cylinder. If voltage is displayed, disconnect Body Control Module (BCM) 20-pin connector located at junction block and ensure connector is clean and not damaged. (Scheme 19)in CHIME TEST 3A. Go to next step.
- Using external voltmeter, measure voltage between ground and terminal No. 19 (Light Green/Orange wire) on BCM 20-pin connector. If voltage is.5 volt or less, replace BCM. If voltage is.5 volt or more, repair Light Green/Orange wire for short to voltage.
VTSS TEST 11B - LEFT VTSS DISARM MALFUNCTION
Note. Perform VTSS TEST 11A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Remove key from ignition switch. Open driver's door. Place key in driver's door key lock cylinder. Rotate key to UNLOCK position and hold. Using scan tool, read LF DR DISARM voltage. If voltage is more than 9 volts, go to next step. If voltage is 9 volts or less, go to step 3).
- Rotate key to LOCK position and hold. Using scan tool, read LF DR DISARM voltage. If voltage is more than 6.8 volts, replace Body Control Module (BCM). If voltage is 6.8 volts or less, replace driver's door key lock cylinder switch.
- Access driver's door key lock cylinder harness. Disconnect lock cylinder connector. Using external voltmeter, measure voltage between ground and terminal No. 1 (Pink wire) on key cylinder switch connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
- Using external ohmmeter, measure resistance between ground and terminal No. 2 (Light Green/Orange wire) on key cylinder switch connector. If resistance is less than 5 ohms, repair Light Green/Orange wire for short to ground. If resistance is 5 ohms or greater, go to next step.
- Connect jumper wire between key cylinder lock switch connector terminals. Using scan tool, read LF DR DISARM voltage. If voltage displayed is more than 9.5 volts, replace driver's door key lock cylinder switch. If voltage is 9.5 volts or less, go to next step.
- Access Body Control Module (BCM) 20-pin connector located at junction block. (Scheme 19)in CHIME TEST 3A. Do not disconnect connector. Using external voltmeter, measure voltage between ground and terminal No. 19 (Light Green/Orange wire) 20-pin connector. If voltage is more than 10 volts, replace BCM. If voltage is 10 volts or less, repair open Light Green/Orange wire.
VTSS TEST 12A - RIGHT VTSS DISARM MALFUNCTION
Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Turn ignition on with engine off. Using scan tool, select THEFT ALARM, SENSOR DISPLAY and read RF DR DISARM voltage. If no voltage is displayed, go to «VTSS TEST 12B»(ref-123786-S22488252632001101500000). If voltage is displayed, access passenger's door key lock cylinder harness. Go to next step.
- Disconnect lock cylinder connector. Using scan tool, read RF DR DISARM voltage. If no voltage is displayed, replace passenger's door key lock cylinder. If voltage is displayed, disconnect Body Control Module (BCM) 20-pin connector located at junction block and ensure connector is clean and not damaged. (Scheme 19)in CHIME TEST 3A. Go to next step.
- Using external voltmeter, measure voltage between ground and terminal No. 20 (Dark Green/Orange wire) on BCM 20-pin connector. If voltage is.5 volt or less, replace BCM. If voltage is.5 volt or more, repair Dark Green/Orange wire for short to voltage.
VTSS TEST 12B - RIGHT VTSS DISARM MALFUNCTION
Note. Perform VTSS TEST 12A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Remove key from ignition switch. Open passenger's door. Place key in passenger's door key lock cylinder. Rotate key to UNLOCK position and hold. Using scan tool, read RF DR DISARM voltage. If voltage is more than 9 volts, go to next step. If voltage is 9 volts or less, go to step 3).
- Rotate key to LOCK position and hold. Using scan tool, read RF DR DISARM voltage. If voltage is more than 6.8 volts, replace BCM. If voltage is 6.8 volts or less, replace passenger's door key lock cylinder switch.
- Access passenger's door key lock cylinder harness. Disconnect lock cylinder connector. Using external voltmeter, measure voltage between ground and terminal No. 1 (Pink wire) on key cylinder switch connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
- Using external ohmmeter, measure resistance between ground and terminal No. 2 (Dark Green/Orange wie) on key cylinder switch connector. If resistance is less than 5 ohms, repair Dark Green/Orange wire for short to ground. If resistance is 5 ohms or greater, go to next step.
- Connect jumper wire between key cylinder lock switch connector terminals. Using scan tool, read RF DR DISARM voltage. If voltage displayed is more than 9.5 volts, replace passenger's door key lock cylinder switch. If voltage is 9.5 volts or less, go to next step.
- Access BCM 20-pin connector located at junction block. (Scheme 19)in CHIME TEST 3A. Do not disconnect connector. Using external voltmeter, measure voltage between ground and terminal No. 20 (Dark Green/Orange wire) on 20-pin connector. If voltage is more than 10 volts, replace BCM. If voltage is 10 volts or less, repair open Light Green/Orange wire.
VTSS TEST 13A - GARAGE DOOR OPENER & DECKLID RELEASE MALFUNCTION
Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Disconnect BCM 20-pin connector located at junction block. (Scheme 19)in CHIME TEST 3A. Using external voltmeter, measure voltage between ground and terminal No. 14 (Gray wire) on 20-pin connector. If voltage is 6 volts or less, repair open Gray wire. If voltage is greater than 6 volts, replace Body Control Module (BCM).
VTSS TEST 14A - DECKLID RELEASE INOPERATIVE FROM RKE
Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Disconnect BCM 14-pin connector located at junction block. (Scheme 19)in CHIME TEST 3A. Using external voltmeter, measure voltage between ground and terminal No. 3 (Brown/Light Blue wire) on 20-pin connector. If voltage is greater than 6 volts, replace Body Control Module (BCM). If voltage is 6 volts or less, repair open Brown/Light Blue wire.
WINDSHIELD WIPER TEST 1A - IDENTIFYING WINDSHIELD WIPER SYSTEM PROBLEMS
Note. Perform SYMPTOM ID TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
Turn ignition on and verify windshield wiper operation. Operate windshield wiper system in high speed mode, low speed mode, intermittent mode and wash mode (with wipers off). If wiper system does not operate properly, perform indicated test. See WINDSHIELD WIPER SYSTEM DIAGNOSTIC TEST DIRECTORY table.
| Problem | Perform |
|---|---|
| Wipers Not Working At All | WINDSHIELD WIPER TEST 2A |
| Wipers Not Working In High Speed Mode | WINDSHIELD WIPER TEST 3A |
| Wipers Not Working In Low Speed Mode | WINDSHIELD WIPER TEST 4A |
| Wipers Not Working In Intermittent Mode | WINDSHIELD WIPER TEST 5A |
| Wipers Not Parking In OFF Position | WINDSHIELD WIPER TEST 6A |
| Wiper Wash Function Not Working | WINDSHIELD WIPER TEST 7A |
| Wipers Operate In High Speed Only | WINDSHIELD WIPER TEST 8A |
| Wipers Run Constantly With Ignition On | WINDSHIELD WIPER TEST 9A |
WINDSHIELD WIPER SYSTEM DIAGNOSTIC TEST DIRECTORY
WINDSHIELD WIPER TEST 2A - WIPERS NOT WORKING AT ALL
Note. Perform WINDSHIELD WIPER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Using scan tool, actuate wipers in low speed mode. If wiper motor does not operate in low speed mode, go to next step. If wiper motor operates in low speed mode, go to «WINDSHIELD WIPER TEST 2B»(ref-123786-S26836867612001101500000).
- Using scan tool, stop wipers low speed actuation and actuate wipers in high speed mode. If wiper motor does not operate in high speed mode, stop wipers actuation and go to next step. If wiper motor operates in high speed mode, go to «WINDSHIELD WIPER TEST 2B»(ref-123786-S26836867612001101500000).
- Using scan tool, read intermittent wipe sensor. While observing scan tool, move wiper switch from OFF position to HI position. If scan tool displays INTRMT WIPE: 0V, go to next step. If scan tool displays INTRMT WIPE: with voltage reading, go to «WINDSHIELD WIPER TEST 2D»(ref-123786-S27094719552001101500000).
- Locate Power Distribution Center (PDC) on left front fender. Remove and inspect wiper fuse No. 14 (40-amp). (Scheme 25) If fuse is okay, go to next step. If fuse is open, go to «WINDSHIELD WIPER TEST 2C»(ref-123786-S38063851812001101500000).
- Using external voltmeter, measure voltage between ground and terminal No. 47 on fuse No. 14 socket. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open Red wire between battery and wiper fuse No. 14.
- Reinstall wiper fuse No. 14. Disconnect intermittent wiper relay and ensure connector is clean and not damaged. Using external voltmeter, measure voltage between ground and terminal "B" (Red/Gray wire) on intermittent wiper relay socket. (Scheme 25) If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Red/Gray wire between wiper fuse No. 14 and intermittent wiper relay.
- Connect a jumper wire between intermittent wiper relay socket terminals "A" and "B". (Scheme 25) If wiper motor operates, disconnect jumper wire and go to «WINDSHIELD WIPER TEST 2D»(ref-123786-S27094719552001101500000). If wiper motor does not operate, go to next step.
- Disconnect wiper HI/LO relay, located in PDC. Ensure connector is clean and not damaged. Ensure jumper wire is still connected between intermittent wiper relay terminals "A" and "B". Using external voltmeter, measure voltage between ground and terminal "A" (Dark Green/Violet wire) on wiper HI/LO relay. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Dark Green/Violet wire between intermittent and HI/LO relays.
- Disconnect jumper wire in intermittent relay terminal. Connect a jumper wire between terminal "B" (Red/Gray wire) on intermittent relay and terminal "D" (Brown/Orange wire) on wiper HI/LO relay. If wiper motor operates in low speed mode, replace wiper HI/LO relay. If wiper motor does not operate in low speed mode, go to «WINDSHIELD WIPER TEST 2E»(ref-123786-S17332303962001101500000).
Locating Power Distribution Components & Terminals. Scheme 25
WINDSHIELD WIPER TEST 2B - WIPERS NOT WORKING AT ALL
Note. Perform WINDSHIELD WIPER TEST 2A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Stop low speed wiper motor actuation. Using scan tool, read intermittent wipe sensor voltage. Observe scan tool and move wiper switch from OFF position to HI position. If scan tool displays INTRMT WIPE: 0V, go to next step. If scan tool displays INTRMT WIPE:, with voltage present, replace BCM.
- Disconnect right multifunction switch 7-pin connector. (Scheme 22)in INSTRUMENT CLUSTER TEST 5G. Ensure connector is clean and not damaged. Using external voltmeter, measure voltage between ground and terminal No. 1 (Dark Blue wire) on right multifunction switch 7-pin connector. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Dark Blue wire between multifunction switch and fuse No. 15.
- Disconnect instrument panel 22-pin connector at Body Control Module (BCM). (Scheme 19)in CHIME TEST 3A. Ensure connector is clean and not damaged. Using external ohmmeter, measure resistance between ground and terminal No. 1 (Dark Green/Yellow wire) on instrument panel 22-pin connector. If resistance is 5 ohms or greater, go to next step. If resistance is less than 5 ohms, repair short to ground in Dark Green/Yellow wire.
- Using an external ohmmeter, measure resistance between terminal No. 2 (Dark Green/Yellow wire) on right multifunction switch 7-pin connector and terminal No. 1 on instrument panel 22-pin connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open in Dark Green/Yellow wire between multifunction switch and BCM.
- Reconnect right multifunction switch 7-pin connector. Turn wiper switch to LO or HI position. Using external voltmeter, measure voltage between ground and terminal No. 1 (Dark Green/Yellow wire) on instrument panel 22-pin connector. If voltage is more than 10 volts, replace BCM. If voltage is 10 volts or less, replace multifunction switch.
WINDSHIELD WIPER TEST 2C - WIPERS NOT WORKING AT ALL
Note. Perform WINDSHIELD WIPER TEST 2A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Remove intermittent wiper relay from Power Distribution Center (PDC). Ensure connector is clean and not damaged. (Scheme 25)in WINDSHIELD WIPER TEST 2A. Remove HI/LO wiper relay and ensure connector is clean and not damaged. Using external ohmmeter, measure resistance between ground and terminal "B" (Red/Gray wire) on intermittent wiper relay socket. If resistance is 5 ohms or greater, go to next step. If resistance is less than 5 ohms, repair short to ground in Red/Gray wire and replace wiper fuse No. 14 (40-amp).
- Using external ohmmeter, measure resistance between ground and terminal "A" (Dark Green/Violet wire) on intermittent relay socket. If resistance is more than 5 ohms, go to next step. If resistance is less than 5 ohms, repair short to ground in Dark Green/Violet wire between intermittent wiper relay and HI/LO wiper relay, and replace wiper fuse No. 14 (40-amp).
- Disconnect wiper motor Light Gray 4-pin connector. Ensure connector is clean and not damaged. Using scan tool in ohmmeter mode, measure resistance between terminal "D" (Brown/Orange wire) on HI/LO wiper relay. If resistance is more than 5 ohms, go to next step. If resistance is less than 5 ohms, repair short to ground in Brown/Orange wire between wiper motor 4-pin connector and HI/LO wiper relay. Replace wiper fuse No. 14 (40-amp).
- Using scan tool in ohmmeter mode, measure resistance at terminal "B" (Red/Yellow wire) on HI/LO wiper relay. If resistance is less than 5 ohms, repair short to ground in Red/Yellow wire between HI/LO wiper relay and wiper motor 4-pin connector. If resistance is more than 5 ohms, replace wiper motor and wiper fuse No. 14 (40-amp).
WINDSHIELD WIPER TEST 2D - WIPERS NOT WORKING AT ALL
Note. Perform WINDSHIELD WIPER TEST 2A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Remove intermittent wiper relay from Power Distribution Center (PDC). Ensure connector is clean and not damaged. (Scheme 25)in WINDSHIELD WIPER TEST 2A. Using external voltmeter, measure voltage between ground and terminal "E" (Pink/Violet wire) on intermittent relay socket. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, go to «WINDSHIELD WIPER TEST 2F»(ref-123786-S18067753912001101500000).
- Reinstall intermittent wiper relay. Locate engine 14-pin connector at BCM. (Scheme 19)in CHIME TEST 3A. Do not disconnect connector. Backprobe jumper wire between terminal No. 7 (Pink/Violet wire) on engine 14-pin connector and ground. If wiper motor does not operate, go to next step. If wiper motor operates, replace BCM.
- Remove intermittent wiper relay from PDC. Do not disconnect jumper wire. Using an external ohmmeter, measure resistance between ground and terminal "E" (Pink/Violet wire) on intermittent wiper relay socket. If resistance is less than 5 ohms, replace intermittent wiper relay. If resistance is 5 ohms or greater, repair open Pink/Violet wire between engine 14-pin connector at BCM and intermittent wiper relay in PDC.
WINDSHIELD WIPER TEST 2E - WIPERS NOT WORKING AT ALL
Note. Perform WINDSHIELD WIPER TEST 2A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Disconnect wiper motor Light Gray 4-pin connector and ensure connector is clean and not damaged. Ensure jumper wire between terminal "B" (Red/Gray wire) on intermittent wiper relay and terminal "D" (Brown/Orange wire) on HI/LO wiper relay is connected. (Scheme 25)in WINDSHIELD WIPER TEST 2A.
- Using external voltmeter, measure voltage between ground and terminal No. 3 (Brown/Orange wire) on wiper motor 4-pin connector. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Brown/Orange wire between HI/LO relay and wiper motor.
- Using external ohmmeter, measure resistance between ground and terminal No. 2 (Black wire) on wiper motor 4-pin connector. If resistance is less than 5 ohms, replace wiper motor. If resistance is 5 ohms or greater, repair open in Black wire between wiper motor 4-pin connector terminal and ground.
WINDSHIELD WIPER TEST 2F - WIPERS NOT WORKING AT ALL
Note. Perform WINDSHIELD WIPER TEST 2D before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Remove and inspect fuse No. 15 (10-amp) in junction block. (Scheme 20)in CHIME TEST 3A. If fuse is open, go to «WINDSHIELD WIPER TEST 2G»(ref-123786-S08113691232001101500000). If fuse is okay, go to next step.
- Using external voltmeter, measure voltage between ground and terminal No. 28 (Black/White wire) on fuse No. 15 socket. (Scheme 20)in CHIME TEST 3A. If voltage is 10 volts or less, repair open in Black/White wire between ignition switch and junction block. If voltage is more than 10 volts, repair open in Dark Blue/Gray wire between junction block and intermittent wiper relay.
WINDSHIELD WIPER TEST 2G - WIPERS NOT WORKING AT ALL
Note. Perform WINDSHIELD WIPER TEST 2F before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Remove HI/LO relay. Using an external ohmmeter, measure resistance between component terminals "C" and "E" on HI/LO wiper relay. (Scheme 25)of WINDSHIELD WIPER TEST 2A. If resistance is 65-90 ohms, go to next step. If resistance is not 65-90 ohms, replace HI/LO wiper relay and replace fuse No. 15.
- Using an external ohmmeter, measure resistance between component terminals "C" and "E" on intermittent wiper relay. (Scheme 25)of WINDSHIELD WIPER TEST 2A. If resistance is not 65-90 ohms, replace intermittent wiper relay and replace fuse No. 15. If resistance is 65-90 ohms, go to next step.
- Disconnect right multifunction switch 7-pin connector. (Scheme 22)in INSTRUMENT CLUSTER TEST 5G. Using external ohmmeter, measure resistance between ground and terminal No. 1 (Dark Blue wire) on right multifunction switch 7-pin connector. If resistance is 5 ohms or greater, replace multi-function switch and fuse No. 15. If resistance is less than 5 ohms, repair short to ground in Dark Blue wire between fuse No. 15 (10-amp) and terminal No. 1 on right multifunction switch 7-pin connector. Replace fuse No. 15.
WINDSHIELD WIPER TEST 3A - WIPERS NOT WORKING IN HIGH SPEED MODE
Note. Perform WINDSHIELD WIPER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Using scan tool, actuate wipers in high speed mode. If wiper motor operates in high speed mode, go to next step. If wiper motor does not operate in high speed mode, go to step 3).
- Stop wiper actuation. Using scan tool, read intermittent wipe sensor voltage. While observing scan tool, turn wiper switch to high position. If scan tool displays intermittent wiper voltage 6.5 volts or less, replace multifunction switch. If scan tool displays intermittent wiper voltage more than 6.5 volts, replace Body Control Module (BCM).
- Stop wiper actuation. Disconnect HI/LO wiper relay and ensure connector is clean and not damaged. (Scheme 25)in WINDSHIELD WIPER TEST 2A. Using external voltmeter, measure voltage between ground and terminal "C" (Dark Blue/Gray wire) on HI/LO wiper relay. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open Dark Blue/Gray wire between HI/LO wiper relay and fuse No. 15 (10-amp).
- Connect a jumper wire between terminals "B" and "C" on HI/LO wiper relay socket. (Scheme 25)in WINDSHIELD WIPER TEST 2A. If wiper motor does not operate in high speed, disconnect jumper wire and go to next step. If wiper motor operates in high speed, go to step 6).
- Disconnect wiper motor Light Gray 4-pin connector. Ensure connector is clean and not damaged. Using external voltmeter, measure voltage on wiper motor connector terminal "A" (Red/Yellow wire). If voltage is more than 10 volts, replace wiper motor. If voltage is 10 volts or less, repair open in Red/Yellow wire.
- Disconnect jumper wire. Connect test light between ground and terminal "E" on HI/LO wiper relay socket. (Scheme 25)in WINDSHIELD WIPER TEST 2A. Using scan tool, actuate wipers in high speed mode and observe test light. If test light pulses on and off, replace HI/LO wiper relay. If test light does not pulse on and off, disconnect test light and go to next step.
- Turn ignition off and stop high speed wiper actuation. Disconnect engine 14-pin connector at BCM. Ensure connector is clean and not damaged. Connect a jumper wire between ground and terminal No. 8 (Violet/Pink wire) on engine 14-pin connector. Go to next step.
- Connect test light between terminals "C" and "E" on HI/LO wiper relay socket. Turn ignition on. If test light illuminates, replace BCM. If test light does not illuminate, repair open in Violet/Pink wire.
WINDSHIELD WIPER TEST 4A - WIPERS NOT WORKING IN LOW SPEED MODE
Note. Perform WINDSHIELD WIPER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Using scan tool, actuate wiper motor in low speed. If wiper motor does not operate in low speed mode, go to next step. If wiper motor operates is low speed, go to step 4).
- Disconnect HI/LO wiper relay and ensure connector is clean and not damaged. Connect a jumper wire between terminals "C" (Dark Blue/Gray wire) and "D" (Brown/Orange wire) on HI/LO wiper relay. (Scheme 25)in WINDSHIELD WIPER TEST 2A. If wiper motor does not operate in low speed, disconnect jumper wire and go to next step. If wiper motor operates in low speed, replace HI/LO wiper relay.
- Disconnect wiper motor Light Gray 4-pin connector and ensure connector is clean and not damaged. Reconnect jumper wire as in step 2). Using external voltmeter, measure voltage on wiper motor 4-pin connector terminal "B" (Brown/Orange wire). If voltage is more than 10 volts, replace wiper motor. If voltage is 10 volts or less, repair open in Brown/Orange wire.
- Using scan tool, stop wiper motor actuation. Using scan tool, read intermittent wipe sensor. While observing scan tool display, move wiper switch to low speed position. If scan tool displays an intermittent wiper voltage of approximately 5.5 volts, replace BCM. If scan tool does not display a voltage of approximately 5.5 volts, replace multifunction switch.
WINDSHIELD WIPER TEST 5A - WIPERS NOT WORKING IN INTERMITTENT MODE
Note. Perform WINDSHIELD WIPER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Operate wipers in intermittent mode. If wiper delay times are okay, go to next step. If wiper delay times are inconsistent, reset wiper switch minimum using scan tool. Retest intermittent wiper operation.
- Turn ignition on. Using scan tool, observe wiper voltage while moving stalk switch through all intermittent wiper positions. If voltage does not change, replace multifunction switch. Reset wiper switch minimum. If voltage does change, replace BCM. Reset wiper switch minimum.
WINDSHIELD WIPER TEST 6A - WIPERS NOT PARKING IN OFF POSITION
Note. Perform WINDSHIELD WIPER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Operate wiper in intermittent mode. Using scan tool, observe wiper park switch. If wiper park switch does not toggle from closed to open, turn wipers off and go to next step. If wiper park switch toggles from closed to open, system is operating properly. Using scan tool, clear trouble codes, and try to reproduce fault.
- Disconnect wiper motor Light Gray 4-pin connector and ensure connector is clean and not damaged. Using scan tool, continue observing wiper park switch and go to next step.
- Connect a jumper wire between terminal "D" (White/Gray wire) and ground on wiper motor 4-pin connector. If scan tool does not display, SWITCH: CLOSED, go to next step. If scan tool display, SWITCH: CLOSED, replace wiper motor.
- Locate engine 14-pin connector at Body Control Module (BCM). (Scheme 20)in CHIME TEST 3A. Using a jumper wire, backprobe between terminal No. 5 (White/Gray wire) on 14-pin connector and ground. If scan tool displays SWITCH: CLOSED, repair open in White/Gray wire. If scan tool does not display SWITCH: CLOSED, replace BCM.
WINDSHIELD WIPER TEST 7A - WIPER WASH FUNCTION NOT WORKING PROPERLY
Note. Perform WINDSHIELD WIPER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Ensure windshield washer fluid reservoir is full. Momentarily pull and release wash button. If washer pump did not operate, but wipers did operate, go to next step. If washer pump and wipers did not operate, go to step 5). If washer pump operated without wiper operation, replace BCM. If washer pump and wipers operated, system is operating properly.
- Locate and disconnect washer pump 2-pin connector at bottom of washer fluid reservoir. Ensure connector is clean and not damaged. Using external ohmmeter, measure resistance between ground and terminal "A" (Black wire) on washer pump connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open in Black wire.
- Activate washer pump switch. Using external voltmeter, measure voltage on washer pump 2-pin connector terminal "B" (Brown/Dark Blue wire). If voltage is 10 volts or less, go to next step. If voltage is more than 10 volts, replace washer pump.
- Locate engine 14-pin connector at BCM. (Scheme 20)in CHIME TEST 3A. Do not disconnect connector. Activate washer pump switch. Using external voltmeter, measure voltage backprobing between terminal No. 10 (Brown/Dark Blue wire) on engine 14-pin connector and ground. If voltage is more than 10 volts, repair open Brown/Dark Blue wire. If voltage is 10 volts or less, replace BCM.
- Using scan tool, read washer switch status while pulling washer switch. If scan tool does not display WASHER SW: CLOSED, go to next step. If scan tool displays WASHER SW: CLOSED, replace Body Control Module (BCM).
- Locate and disconnect right multifunction switch 7-pin connector. (Scheme 22)in INSTRUMENT CLUSTER TEST 5G. Connect a jumper wire between terminals No. 1 (Dark Blue wire) and No. 3 (Brown/Dark Blue wire) on multifunction switch 7-pin connector. Using scan tool, read washer switch status while pulling washer switch. If scan tool does not display WASHER SW: CLOSED, go to next step. If scan tool displays WASHER SW: CLOSED, replace multifunction switch.
- Disconnect instrument panel 22-pin connector at BCM. (Scheme 19)in CHIME TEST 3A. Ensure connector is clean and not damaged. Using external voltmeter, measure voltage between ground and terminal No. 15 (Brown/Dark Blue wire) on instrument panel 22-pin connector. If voltage is more than 10 volts, replace BCM. If voltage is less than 10 volts, repair open in Brown/Dark Blue wire.
WINDSHIELD WIPER TEST 8A - WIPERS OPERATE IN HIGH SPEED ONLY
Note. Perform WINDSHIELD WIPER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Disconnect HI/LO wiper relay. (Scheme 25)in WINDSHIELD WIPER TEST 2A. Replace original HI/LO wiper relay with a known good relay. Turn ignition on and activate wipers. If wipers do not operate properly in low and high speed modes, go to next step. If wiper operate properly in low and high speed modes, replace original HI/LO wiper relay.
- Turn ignition off. Disconnect engine 14-pin connector at BCM. (Scheme 19)in CHIME TEST 3A. Ensure connector is clean and not damaged. Remove substitute HI/LO wiper relay. Using external ohmmeter, measure resistance between ground and terminal No. 8 (Violet/Pink wire) on engine 14-pin connector. If resistance is 5 ohms or greater, replace BCM. If resistance is less than 5 ohms, repair short to ground in Violet/Pink wire.
WINDSHIELD WIPER TEST 9A - WIPERS RUN CONSTANTLY WITH IGNITION ON
Note. Perform WINDSHIELD WIPER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector. |
- Ensure ignition is on and wiper switch is off. Using scan tool, read intermittent wiper voltage. If scan tool displays a voltage of more than 9 volts, go to next step. If scan tool displays a voltage less than 9 volts, go to step 4).
- Turn ignition off. Disconnect instrument panel 22-pin connector at BCM. (Scheme 19)in CHIME TEST 3A. Ensure connector is clean and not damaged. Using external voltmeter, measure voltage between ground and terminal No. 10 (Dark Green/Yellow wire) on instrument panel 22-pin connector. Turn ignition on with engine off. If voltage is more than.5 volt, go to next step. If voltage is.5 volt or less, replace BCM.
- Turn ignition off. Disconnect right multifunction switch 7-pin connector. (Scheme 22)in INSTRUMENT CLUSTER TEST 5G. Using scan tool in voltmeter mode, measure voltage between ground and terminal No. 10 (Dark Green/Yellow wire) on instrument panel 22-pin connector. Turn ignition on with engine off. If voltage is more than.5 volt, repair short to battery voltage on Dark Green/Yellow wire. If voltage is.5 volt or less, replace multifunction switch.
- Turn ignition off. Remove intermittent wiper relay and replace original wiper relay with a known good relay. (Scheme 25)in WINDSHIELD WIPER TEST 2A. Turn ignition on with engine off. If wipers still run constantly, go to next step. If wipers do not run constantly, replace intermittent wiper relay.
- Turn ignition off. Disconnect engine 14-pin connector at BCM. Ensure connector is clean and not damaged. Turn ignition on with engine off. If wipers still run constantly, go to next step. If wipers do not run constantly, replace Body Control Module (BCM).
- Turn ignition off. Remove substitute intermittent wiper relay. Using scan tool in ohmmeter mode, measure resistance at terminal No. 7 (Pink/Violet wire) on engine 14-pin connector. If resistance is less than 100 ohms, repair short to ground in Pink/Violet wire. If resistance is 100 ohms or greater, replace BCM.
TEST VER-1A - VERIFICATION PROCEDURE
- Reconnect all previously disconnected components and wiring. If battery or BCM has been disconnected, or any work has been performed on A/C system, A/C mode doors must be calibrated. Start engine and use scan tool to calibrate A/C mode doors. Do not allow vehicle to move during calibration. When calibration is complete, turn engine off and ignition on. Use scan tool to erase trouble codes.
- Turn ignition off and wait at least 5 seconds and then turn ignition on (engine off). Operate system that was malfunctioning to verify correct operation. If system operates properly, repair is complete. If system does not operate properly, go to «SYMPTOM ID TEST 1A»(ref-123786-S22213125232001101500000) .
TEST 1A - BUS FAULT MESSAGES
Battery must be fully charged before proceeding. Connect scan tool to Data Link Connector (DLC) to retrieve messages. See BUS FAULT MESSAGES table and proceed to appropriate test number. If NO RESPONSE message is displayed, see NO RESPONSE DIAGNOSIS table and proceed to appropriate test number.
| Fault Messages | Perform |
|---|---|
| BUS SHORT TO BATTERY | TEST 2A |
| BUS SHORT TO 5 VOLTS | TEST 3A |
| BUS SHORT TO GROUND | TEST 4A |
| BUS (+) & BUS (-) SHORTED TOGETHER | TEST 5A |
| NO TERMINATION | TEST 6A |
| BUS BIAS LEVEL TOO LOW | TEST 7A |
| BUS BIAS LEVEL TOO HIGH | TEST 7A |
| BUS (+) OPEN | TEST 8A |
| BUS (-) OPEN | TEST 8A |
| BUS (+) & (-) OPEN | TEST 8A |
| NO BUS BIAS | TEST 8A |
| NOT RECEIVING BUS MESSAGES CORRECTLY | TEST 9A |
BUS FAULT MESSAGES
| Problem Module | Perform |
|---|---|
| Air Bag Control Module | TEST 10A |
| Body Control Module (1) | TEST 11A |
| Instrument Cluster | TEST 12A |
| Powertrain Control Module | TEST 13A |
| Transmission Control Module (2) | TEST 14A |
| CCD Radio | TEST 15A |
| (1) Battery power to module disconnected. (2) Also go to TEST 14A for EATX PRNDL fault message. | |
| (1) | Battery power to module disconnected. |
| (2) | Also go to TEST 14A for EATX PRNDL fault message. |
NO RESPONSE DIAGNOSIS
TEST 2A - BUS SHORT TO BATTERY
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
- Turn ignition off. Disconnect Transmission Control Module (TCM), if equipped. TCM is located next to power distribution center. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, replace TCM. If scan tool displays BUS SHORT TO BATTERY, go to next step.
- Turn ignition off and disconnect Powertrain Control Module (PCM). PCM is located next to air cleaner. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to «TEST 2B»(ref-123786-S16758152512001101500000) . If scan tool displays BUS SHORT TO BATTERY, go to next step.
- Turn ignition off and disconnect instrument cluster. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to «TEST 2C»(ref-123786-S03915734102001101500000) . If scan tool displays BUS SHORT TO BATTERY, go to next step.
- Turn ignition off and wait 5 minutes. Disconnect Air Bag Control Module (ABCM) connector. ABCM is located under center console. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, replace ABCM. See REMOVAL & INSTALLATION in AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section. If scan tool displays BUS SHORT TO BATTERY, go to next step.
- Turn ignition off and disconnect CCD radio. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, leave disconnected and tape connector to harness. If scan tool displays BUS SHORT TO BATTERY, go to next step.
- Turn ignition off. Disconnect Body Control Module (BCM) 14-pin and 22-pin connectors. BCM is located on back of junction block. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to «TEST 2D»(ref-123786-S42655340162001101500000) . If scan tool displays BUS SHORT TO BATTERY, go to next step.
- Disconnect scan tool from Data Link Connector (DLC). Using an external voltmeter, measure voltage on DLC terminal No. 3 (Violet/Gray wire). If voltage is more than 8 volts, repair Violet/Gray wire for short to voltage. If voltage is 8 volts or less, go to next step.
- Measure voltage on DLC terminal No. 11 (White/Dark Blue wire). If voltage is more than 8 volts, repair White/Dark Blue wire for short to voltage. If voltage is less than 8 volts, replace scan tool cable or scan tool as necessary.
TEST 2B - BUS SHORT TO BATTERY
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
- Turn ignition off. Using an external ohmmeter, measure resistance between Powertrain Control Module (PCM) connector terminals No. 44 (Orange/White wire) and No. 59 (Violet/Brown wire). If resistance is less than 5 ohms, repair short between Orange/White wire and Violet/Brown wire. If resistance is 5 ohms or greater, go to next step.
- Measure resistance between PCM connector terminals No. 44 (Orange/White wire) and No. 60 (White/Black wire). If resistance is less than 5 ohms, repair short between Orange/White wire and White/Black wire. If resistance is 5 ohms or greater, replace PCM.
TEST 2C - BUS SHORT TO BATTERY
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
- Turn ignition off. Using external ohmmeter, measure resistance between ground and instrument cluster Red connector, terminal No. 4 (Black/Light Green wire). If resistance is 5 ohms or greater, repair open Black/Light Green wire. If resistance is less than 5 ohms, go to next step.
- Measure resistance between ground and instrument cluster Blue connector, terminal No. 11 (Black/Orange wire). If resistance is 5 ohms or greater, repair open Black/Orange wire. If resistance is less than 5 ohms, replace instrument cluster.
TEST 2D - BUS SHORT TO BATTERY
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
Turn ignition off. Disconnect Body Control Module (BCM) from junction block. Using external ohmmeter, measure resistance between ground and internal connector, terminal No. 10. (Scheme 26) If resistance is 10 ohms or greater, repair open ground circuit/junction block. If resistance is less than 10 ohms, replace BCM.
Identifying Junction Block Internal 12-Pin Connector Terminals. Scheme 26
TEST 3A - BUS SHORT TO 5 VOLTS
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
- Turn ignition off. Disconnect Transmission Control Module (TCM), if equipped. TCM is located next to power distribution center in left front corner of engine compartment. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, replace TCM. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
- Turn ignition off and disconnect Powertrain Control Module (PCM). PCM is located next to air cleaner. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, go to «TEST 3B»(ref-123786-S05281067072001101500000) . If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
- Turn ignition off and disconnect instrument cluster. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, go to «TEST 3C»(ref-123786-S23325128372001101500000) . If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
- Turn ignition off and disconnect CCD radio 2-pin connector. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, isolate CCD radio 2-pin connector and tape to harness. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
- Turn ignition off and wait 5 minutes. Disconnect Air Bag Control Module (ABCM) connector. ABCM is located under center console. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, replace ABCM. See REMOVAL & INSTALLATION in AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
- Turn ignition off. Disconnect Body Control Module (BCM) 14-pin and 22-pin connectors. BCM is located on back of junction block. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, go to «TEST 3D»(ref-123786-S24739477672001101500000) . If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
- Disconnect scan tool from Data Link Connector (DLC). Using an external voltmeter, measure voltage on DLC terminal No. 3 (Violet/Gray wire). If voltage is more than 4 volts, repair Violet/Gray wire for short to voltage. If voltage is 4 volts or less, go to next step.
- Measure voltage on DLC terminal No. 11 (White/Dark Blue wire). If voltage is more than 4 volts, repair White/Dark Blue wire for short to voltage. If voltage is less than 4 volts, replace scan tool cable or scan tool as necessary.
TEST 3B - BUS SHORT TO 5 VOLTS
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
- Turn ignition off. Using an external ohmmeter, measure resistance between Powertrain Control Module (PCM) connector terminals No. 59 (Violet/Brown wire) and No. 61 (Violet/White wire). If resistance is less than 5 ohms, repair short between Violet/Brown wire and Violet/White wire. If resistance is 5 ohms or greater, go to next step.
- Measure resistance between PCM connector terminals No. 60 (White/Black wire) and No. 61 (Violet/White wire). If resistance is less than 5 ohms, repair short between White/Black wire and Violet/White wire. If resistance is 5 ohms or greater, replace PCM.
TEST 3C - BUS SHORT TO 5 VOLTS
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
- Turn ignition off. Using external ohmmeter, measure resistance of instrument cluster Red connector, terminal No. 4 (Black/Light Green wire) circuit. If resistance is 5 ohms or greater, repair open Black/Light Green wire. If resistance is less than 5 ohms, go to next step.
- Measure resistance of instrument cluster Blue connector, terminal No. 11 (Black/Orange wire) circuit. If resistance is 5 ohms or greater, repair open Black/Orange wire. If resistance is less than 5 ohms, replace instrument cluster.
TEST 3D - BUS SHORT TO 5 VOLTS
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
- Using external ohmmeter, measure resistance between Body Control Module (BCM) 22-pin connector, terminals No. 1 (Violet/Brown wire) and No. 7 (Light Green/Black wire). If resistance is less than 5 ohms, repair short between Violet/Brown wire and Light Green/Black wire. If resistance is 5 ohms or greater, go to next step.
- Measure resistance between BCM 22-pin connector, terminals No. 2 (Violet wire) and No. 7 (Light Green/Black wire). If resistance is less than 5 ohms, repair short between Violet wire and Light Green/Black wire. If resistance is 5 ohms or greater, go to next step.
- Measure resistance between BCM 22-pin connector, terminals No. 3 (Violet/Gray wire) and No. 7 (Light Green/Black wire). If resistance is less than 5 ohms, repair short between Violet/Gray wire and Light Green/Black wire. If resistance is 5 ohms or greater, go to next step.
- Measure resistance between BCM 22-pin connector, terminals No. 11 (White/Dark Blue wire) and No. 7 (Light Green/Black wire). If resistance is less than 5 ohms, repair short between White/Dark Blue wire and Light Green/Black wire. If resistance is 5 ohms or greater, go to next step.
- Measure resistance between BCM 22-pin connector, terminals No. 12 (White/Black wire) and No. 7 (Light Green/Black wire). If resistance is less than 5 ohms, repair short between White/Black wire and Light Green/Black wire. If resistance is 5 ohms or greater, go to next step.
- Measure resistance between BCM 22-pin connector, terminals No. 13 (White/Dark Green wire) and No. 7 (Light Green/Black wire). If resistance is less than 5 ohms, repair short between White/Dark Green wire and Light Green/Black wire. If resistance is 5 ohms or greater, go to next step.
- Using external ohmmeter, measure resistance between BCM 22-pin connector, terminals No. 1 (Violet/Brown wire) and No. 17 (Light Blue wire). If resistance is less than 5 ohms, repair short between Violet/Brown wire and Light Blue wire. If resistance is 5 ohms or greater, go to next step.
- Measure resistance between BCM 22-pin connector, terminals No. 2 (Violet wire) and No. 17 (Light Blue wire). If resistance is less than 5 ohms, repair short between Violet wire and Light Blue wire. If resistance is 5 ohms or greater, go to next step.
- Measure resistance between BCM 22-pin connector, terminals No. 3 (Violet/Gray wire) and No. 17 (Light Blue wire). If resistance is less than 5 ohms, repair short between Violet/Gray wire and Light Blue wire. If resistance is 5 ohms or greater, go to next step.
- Measure resistance between BCM 22-pin connector, terminals No. 11 (White/Dark Blue wire) and No. 17 (Light Blue wire). If resistance is less than 5 ohms, repair short between White/Dark Blue wire and Light Blue wire. If resistance is 5 ohms or greater, go to next step.
- Measure resistance between BCM 22-pin connector, terminals No. 12 (White/Black wire) and No. 17 (Light Blue wire). If resistance is less than 5 ohms, repair short between White/Black wire and Light Blue wire. If resistance is 5 ohms or greater, go to next step.
- Measure resistance between BCM 22-pin connector, terminals No. 13 (White/Dark Green wire) and No. 17 (Light Blue wire). If resistance is less than 5 ohms, repair short between White/Dark Green wire and Light Blue wire. If resistance is 5 ohms or greater, replace BCM.
TEST 4A - BUS SHORT TO GROUND
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
Note. For appropriate wire color tracers (i.e. Black/*), see WIRING DIAGRAMS .
- Connect backprobe jumper wire between Data Link Connector (DLC) ground terminals No. 4 (Black/* wire) and No. 5 (Black/* wire). If scan tool does not display BUS SHORT TO GROUND, repair open ground wire. See «WIRING DIAGRAMS»(ref-123786-S02217354972001101500000) . If scan tool displays BUS SHORT TO GROUND, go to next step.
- Turn ignition off. Disconnect Transmission Control Module (TCM), if equipped. TCM is located at left front corner of engine compartment, next to power distribution center. Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace TCM. If scan tool displays BUS SHORT TO GROUND, go to next step.
- Turn ignition off and disconnect Powertrain Control Module (PCM). PCM is located next to air cleaner. Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace PCM. If scan tool displays BUS SHORT TO GROUND, go to next step.
- Turn ignition off and disconnect instrument cluster. Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace instrument cluster. If scan tool displays BUS SHORT TO GROUND, go to next step.
- Turn ignition off and disconnect CCD radio 2-pin connector. Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, isolate CCD radio 2-pin connector and tape to harness. If scan tool displays BUS SHORT TO GROUND, go to next step.
- Turn ignition off and wait 5 minutes. Disconnect Air Bag Control Module (ABCM) 13-pin connector. ABCM is located under center console. Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace ABCM. If scan tool displays BUS SHORT TO GROUND, go to next step.
- Disconnect Body Control Module (BCM) 14-pin and 22-pin connectors. BCM is connected to junction block. Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, go to step 10). If scan tool displays BUS SHORT TO GROUND, go to next step.
- Disconnect scan tool from Data Link Connector (DLC). Using an external ohmmeter, measure resistance between ground and Data Link Connector (DLC) terminal No. 3 (Violet/Gray wire). If resistance is less than 5 ohms, repair Violet/Gray wire for short to ground. If resistance is 5 ohms or greater, go to next step.
- Measure resistance between ground and DLC terminal No. 11 (White/Dark Green wire). If resistance is less than 5 ohms, repair White/Dark Green wire for short to ground. If resistance is 5 ohms or greater, replace scan tool cable or scan tool as necessary.
- Using external ohmmeter, measure resistance between specific CCD BUS (+) circuits on BCM 14-pin and 22-pin connectors and ground. See «CCD BUS (+) CIRCUIT RESISTANCE»(ref-123786-S40731249942001101500000) table. If resistance is less than 5 ohms, repair applicable circuit for short to ground. If resistance is 5 ohms or greater, go to next step.
- Using external ohmmeter, measure resistance between specific CCD BUS (-) circuits on BCM 14-pin and 22-pin connectors. See CCD BUS (-) CIRCUIT RESISTANCE table. If resistance is less than 5 ohms, repair applicable circuit for short to ground. If resistance is 5 ohms or greater, replace BCM.
| Terminal No. | Wire Color | |
|---|---|---|
| BCM 14-Pin Connector | ||
| 5 | Violet/Brown | |
| 6 | Violet/Dark Green | |
| BCM 22-Pin Connector | ||
| 1 | Violet/Brown | |
| 2 | Violet | |
| 3 (1) | Violet/Gray | |
| (1) Not applicable for JX model. | ||
| (1) | Not applicable for JX model. |
CCD BUS (+) CIRCUIT RESISTANCE
| Terminal No. | Wire Color | |
|---|---|---|
| BCM 14-Pin Connector | ||
| 13 | White/Black | |
| 14 | White/Dark Green | |
| BCM 22-Pin Connector | ||
| 11 | White/Dark Blue | |
| 12 | White/Black | |
| 13 (1) | White/Dark Green | |
| (1) Not applicable for JX model. | ||
| (1) | Not applicable for JX model. |
CCD BUS (-) CIRCUIT RESISTANCE
TEST 5A - BUS (+) & BUS (-) SHORTED TOGETHER
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
- Turn ignition off. Disconnect Transmission Control Module (TCM), if equipped. TCM is located in left front corner of engine compartment, next to power distribution center. Turn ignition on. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace TCM. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step.
- Turn ignition off and disconnect Powertrain Control Module (PCM). PCM is located next to air cleaner. Turn ignition on. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace PCM. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step.
- Turn ignition off and disconnect instrument cluster. Turn ignition on. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace instrument cluster. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step.
- Turn ignition off and disconnect CCD radio 2-pin connector. Turn ignition on. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, isolate CCD radio 2-pin connector and tape to harness. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step.
- Turn ignition off and wait 5 minutes. Disconnect Air Bag Control Module (ABCM) 13-pin connector. ABCM is located under center console. Turn ignition on. Open driver's door and turn on courtesy light. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace ABCM. See REMOVAL & INSTALLATION in AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step.
- Disconnect Body Control Module (BCM) 14-pin and 22-pin connectors. BCM is connected to junction block. Turn ignition on. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, go to step 9). If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step.
- Disconnect scan tool from Data Link Connector (DLC). Using an external ohmmeter, measure resistance between DLC terminals No. 3 (Violet/Gray wire) and No. 11 (White/Dark Green wire). If resistance is less than 20 ohms, repair short between Violet/Gray wire and White/Dark Green wire.
- Using external ohmmeter, measure resistance between BUS (+) and BUS (-) terminals on BCM 14-pin connector. See «CCD BUS CIRCUIT IDENTIFICATION»(ref-123786-S37182025112001101500000) table. If resistance is less than 20 ohms, repair short between applicable circuits. If resistance is 20 ohms or greater, replace scan tool cable or scan tool as necessary.
- Using external ohmmeter, measure resistance between BUS (+) and BUS (-) terminals on BCM 22-pin connector. See CCD BUS CIRCUIT IDENTIFICATION table. If resistance is less than 20 ohms, repair short between applicable circuits. If resistance is 20 ohms or greater, replace BCM.
| Terminal No. | Wire Color | |
|---|---|---|
| BCM 14-Pin Connector Bus (+) | ||
| 5 | Violet/Brown | |
| 6 | Violet/Dark Green | |
| BCM 14-Pin Connector Bus (-) | ||
| 13 | White/Black | |
| 14 | White/Dark Green | |
| BCM 22-Pin Connector Bus (+) | ||
| 1 | Violet/Brown | |
| 2 | Violet | |
| 3 (1) | Violet/Gray | |
| BCM 22-Pin Connector Bus (-) | ||
| 11 | White/Dark Blue | |
| 12 | White/Black | |
| 13 (1) | White/Dark Green | |
| (1) Not applicable for JX model. | ||
| (1) | Not applicable for JX model. |
CCD BUS CIRCUIT IDENTIFICATION
TEST 6A - NO TERMINATION
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
Note. Ignition off during bus test is most common cause for this trouble code.
- Turn ignition off. Access Body Control Module (BCM) 22-pin connector. BCM is connected to junction block.
- Using jumper wire, backprobe BCM 22-pin connector. Connect jumper between terminal No. 3 (Violet/Gray wire) and ground. Using scan tool, select BODY, BODY COMPUTER, then SYSTEM TEST. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open Violet/Gray wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
- Move jumper wire to BCM 22-pin connector, terminal No. 13 (White/Dark Green wire). Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open White/Dark Green wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
- Turn ignition off. Disconnect BCM. Disconnect BCM 22-pin connector. Using an external ohmmeter, measure resistance between BCM 22-pin connector CCD BUS (+) and (-) terminals. See «CCD BUS CIRCUIT IDENTIFICATION»(ref-123786-S37182025112001101500000) table in TEST 5A. If resistance is not 100-140 ohms on all circuits, replace BCM. If resistance is 100-140 ohms on all circuits, go to next step.
- Disconnect BCM 14-pin connector. Using an external ohmmeter, measure resistance between BCM 14-pin connector CCD BUS (+) and (-) terminals. See «CCD BUS CIRCUIT IDENTIFICATION»(ref-123786-S37182025112001101500000) table in TEST 5A. If resistance is not 100-140 ohms on all circuits, replace BCM. If resistance is 100-140 ohms on all circuits, replace scan tool cable or scan tool.
TEST 7A - BUS BIAS TO HIGH/LOW LEVEL
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
Note. Ignition off during bus test is most common cause for this trouble code.
- Turn ignition off. Disconnect Transmission Control Module (TCM), if equipped. TCM is located at left front corner of engine compartment, next to power distribution center. Turn ignition on. If scan tool does not display BUS BIAS TOO HIGH/LOW, replace TCM. If scan tool displays BUS BIAS TOO HIGH/LOW, go to next step.
- Turn ignition off and disconnect Powertrain Control Module (PCM). PCM is located next to air cleaner. Turn ignition on. If scan tool does not display BUS BIAS TOO HIGH/LOW, replace PCM. If scan tool displays BUS BIAS TOO HIGH/LOW, go to next step.
- Turn ignition off and disconnect instrument cluster. Turn ignition on. If scan tool does not display BUS BIAS TOO HIGH/LOW, replace instrument cluster. If scan tool displays BUS BIAS TOO HIGH/LOW, go to next step.
- Turn ignition off and disconnect CCD radio 2-pin connector. Turn ignition on. If scan tool does not display BUS BIAS TOO HIGH/LOW, isolate CCD radio 2-pin connector and tape to harness. If scan tool displays BUS BIAS TOO HIGH/LOW, go to next step.
- Turn ignition off and wait 5 minutes. Disconnect Air Bag Control Module (ABCM) 13-pin connector. ABCM is located under center console. Turn ignition on. If scan tool does not display BUS BIAS TOO HIGH/LOW, replace ABCM. See REMOVAL & INSTALLATION in AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section.
- If scan tool displays BUS BIAS TOO HIGH/LOW, disconnect Body Control Module (BCM) 14-pin and 22-pin connectors. BCM is connected to junction block. If scan tool display was BUS BIAS TOO HIGH, go to step 9).
- Using external ohmmeter, measure resistance between specific CCD BUS (+) terminals on BCM 14-pin and 22-pin connectors and ground. See «CCD BUS CIRCUIT IDENTIFICATION»(ref-123786-S37182025112001101500000) table in TEST 5A. If resistance is less than 17 k/ohms, repair applicable circuit for partial short to ground. If resistance is 17 k/ohms or greater, go to next step.
- Measure resistance between specific CCD BUS (-) terminals on BCM 14-pin and 22-pin connectors and ground. See «CCD BUS CIRCUIT IDENTIFICATION»(ref-123786-S37182025112001101500000) table in TEST 5A. If resistance is less than 17 k/ohms, repair applicable circuit for partial short to ground. If resistance is 17k/ohms or greater, replace BCM.
- Using external voltmeter, measure voltage between specific CCD BUS (+) terminals on BCM 14-pin and 22-pin connectors and ground. See «CCD BUS CIRCUIT IDENTIFICATION»(ref-123786-S37182025112001101500000) table in TEST 5A. If voltage is more than 0.2 volt, repair applicable circuit for partial short to voltage. If voltage is 0.2 volt or less, go to next step.
- Measure voltage between specific CCD BUS (-) terminals on BCM 14-pin and 22-pin connectors and ground. See «CCD BUS CIRCUIT IDENTIFICATION»(ref-123786-S37182025112001101500000) table in TEST 5A. If voltage is more than 0.2 volt, repair applicable circuit for partial short to voltage. If voltage is 0.2 volt or less, replace BCM.
TEST 8A - BUS BIAS LEVEL OR BUS (+/-) OPEN
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
Note. Ignition off during bus test is most common cause for this trouble code.
- If ignition was off during BUS test, turn ignition on. If ignition was on during BUS test, turn ignition on, engine off. Do not disconnect scan tool. Using an external voltmeter, backprobe DLC connector terminals. Measure voltage between ground and DLC terminal No. 3 (Violet/Gray wire). If voltage is not 2.3-2.6 volts, go to step 3). If voltage is 2.3-2.6 volts, go to next step.
- Measure voltage between ground and DLC terminal No. 11 (White/Dark Green wire). If voltage is not 2.3-2.6 volts, go to next step. If voltage is 2.3-2.6 volts, replace scan tool cable or scan tool.
- Access Body Control Module (BCM) connectors. BCM is connected to junction block. Using jumper wire, backprobe BCM 22-pin connector. Connect jumper between terminal No. 3 (Violet/Gray wire) and ground. Using scan tool, select BODY, BODY COMPUTER, then SYSTEM TEST. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open Violet/Gray wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
- Move jumper wire to BCM 22-pin connector, terminal No. 13 (White/Dark Green wire). Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open White/Dark Green wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
- Turn ignition off. Disconnect BCM. Disconnect BCM 22-pin connector. Using an external ohmmeter, measure resistance between BCM 22-pin connector CCD BUS (+) and (-) terminals. See «CCD BUS CIRCUIT IDENTIFICATION»(ref-123786-S37182025112001101500000) table in TEST 5A. If resistance is not 100-140 ohms on all circuits, replace BCM. If resistance is 100-140 ohms on all circuits, go to next step.
- Disconnect BCM 14-pin connector. Using an external ohmmeter, measure resistance between BCM 14-pin connector CCD BUS (+) and (-) terminals. See «CCD BUS CIRCUIT IDENTIFICATION»(ref-123786-S37182025112001101500000) table in TEST 5A. If resistance is not 100-140 ohms on all circuits, replace BCM. If resistance is 100-140 ohms on all circuits, go to next step.
- Turn ignition on. Using external voltmeter, measure voltage between ground and junction block internal connector, terminals No. 2 and 12. (Scheme 26) If voltage is 10 volts or less, repair fused B+ circuit/junction block as needed. If voltage is more than 10 volts, go to next step.
- Using external voltmeter, measure voltage on junction block internal connector, terminal No. 6. If voltage is 10 volts or less, repair fused ignition switch output as needed. If voltage is more than 10 volts, go to next step.
- Turn ignition off. Using external ohmmeter, measure resistance on junction block internal connector, terminal No. 10. If resistance is 15 ohms or greater, repair open ground circuit/junction block. If resistance is less than 15 ohms, replace BCM.
TEST 9A - NOT RECEIVING BUS MESSAGES CORRECTLY
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
- Turn ignition off. Disconnect Transmission Control Module (TCM), if equipped. TCM is located in left front corner of engine compartment, next to power distribution center. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGES CORRECTLY, replace TCM. If scan tool displays NOT RECEIVING BUS MESSAGES CORRECTLY, go to next step.
- Turn ignition off and reconnect TCM. Disconnect Powertrain Control Module (PCM). PCM is located next to air cleaner. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGES CORRECTLY, replace PCM. If scan tool displays NOT RECEIVING BUS MESSAGES CORRECTLY, go to next step.
- Turn ignition off and reconnect PCM. Disconnect instrument cluster. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGES CORRECTLY, replace instrument cluster. If scan tool displays NOT RECEIVING BUS MESSAGES CORRECTLY, go to next step.
- Turn ignition off and wait 5 minutes. Disconnect Air Bag Control Module (ABCM) 13-pin connector. ABCM is located under center console. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGES CORRECTLY, replace ABCM. See REMOVAL & INSTALLATION in AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section. If scan tool displays NOT RECEIVING BUS MESSAGES CORRECTLY, go to next step.
- Disconnect Body Control Module (BCM) 14-pin and 22-pin connectors. BCM is connected to junction block. If scan tool does not display NOT RECEIVING BUS MESSAGES CORRECTLY, replace BCM. If scan tool displays NOT RECEIVING BUS MESSAGES CORRECTLY, go to next step.
- Disconnect CCD radio 2-pin connector. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGES CORRECTLY, isolate CCD radio 2-pin connector and tape to harness. If scan tool displays NOT RECEIVING BUS MESSAGES CORRECTLY, replace scan tool cable or scan tool.
TEST 10A - NO RESPONSE FROM AIR BAG CONTROL MODULE
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
- Remove and inspect fuse No. 17. If fuse is open, go to «TEST 10B»(ref-123786-S24325847182001101500000) . If fuse is okay, go to next step.
- Using external voltmeter, measure voltage on component side of fuse No. 17 (Light Green/Yellow wire). If voltage is 10 volts or less, repair open Light Green/Yellow wire. If voltage is more than 10 volts, go to next step.
- Disconnect battery and wait 2 minutes. Disconnect Air Bag Control Module (ABCM) 13-pin connector. ABCM is located under center console. Reinstall fuse No. 17. Turn ignition on. Reconnect battery.
- Using external voltmeter, measure voltage on ABCM connector, terminal No. 1 (Light Green/Yellow wire). If voltage is 10 volts or less, repair open Light Green/Yellow wire. If voltage is more than 10 volts, go to next step. NOTE: For appropriate wire color tracers (i.e. Black/*), see «WIRING DIAGRAMS»(ref-123786-S02217354972001101500000) .
- Turn ignition off. Using ohmmeter, measure resistance on ABCM connector, terminal No. 11 (Black/* wire). If resistance is 5 ohms or greater, repair open Black/* wire. If resistance is less than 5 ohms, go to next step.
- Connect jumper between ground and ABCM connector, terminal No. 3 (Violet wire). Using scan tool, select BODY, BODY COMPUTER, then SYSTEM TEST. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open Violet wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
- Move jumper wire to ABCM terminal No. 4 (White/Black wire). Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open White/Black wire. If scan tool displays BUS SHORT TO GROUND, replace ABCM.
TEST 10B - NO RESPONSE FROM AIR BAG CONTROL MODULE
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
Using external ohmmeter, measure resistance on component side of fuse No. 17 (Light Green/Yellow wire). If resistance is less than 5 ohms, repair Light Green/Yellow wire for short to ground. If resistance is 5 ohms or greater, replace fuse.
TEST 11A - NO RESPONSE FROM BODY CONTROL MODULE
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
- Remove and inspect fuse No. 11. If fuse is open, go to step 6). If fuse is okay, go to next step.
- Turn ignition off. Install fuse No. 11. Disconnect Body Control Module (BCM). BCM is connected to junction block. Using external ohmmeter, measure resistance on junction block internal connector, terminal No. 10. (Scheme 26) If resistance is 20 ohms or greater, repair open ground circuit/junction block. If resistance is less than 20 ohms, go to next step.
- Using external voltmeter, measure voltage on junction block internal connector, terminal No. 12. If voltage is 10 volts or less, replace junction block. If voltage is more than 10 volts, go to next step.
- Turn ignition on. Measure voltage on junction block internal connector, terminal No. 6. If voltage is 10 volts or less, replace junction block. If voltage is more than 10 volts, go to next step.
- Using external voltmeter, measure voltage on junction block internal connector, terminal No. 11. If voltage is 10 volts or less, replace junction block. If voltage is more than 10 volts, replace BCM.
- Turn ignition off. Using external ohmmeter, measure resistance ground and component side of fuse No. 11 (Red/Violet wire). If resistance is 5 ohms or greater, replace fuse No. 11. If resistance is less than 5 ohms, go to next step.
- Disconnect BCM. BCM is connected to junction block. Using external ohmmeter, measure resistance between ground and component side of fuse No. 11 (Red/Violet wire). If resistance is 5 ohms or greater, replace fuse No. 11 and BCM. If resistance is less than 5 ohms, repair Red/Violet wire for short to ground. Replace fuse No. 11.
TEST 12A - NO RESPONSE FROM INSTRUMENT CLUSTER
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
- Turn ignition off. Remove and inspect fuses No. 7 and 11. If fuse No. 7 is open, go to «TEST 12B»(ref-123786-S06033412842001101500000) . If fuse No. 11 is open, go to «TEST 12C»(ref-123786-S40950010202001101500000) .
- Install both fuses. Disconnect instrument cluster connectors. Turn ignition on. Using external voltmeter, measure voltage on Red instrument cluster connector, terminal No. 2 (Red/Violet wire). If voltage is 10 volts or less, repair open Red/Violet wire. If voltage is more than 10 volts, go to next step.
- Measure voltage on Red instrument cluster connector, terminal No. 5 (Pink/Red wire). If voltage is 10 volts or less, repair open Pink/Red wire. If voltage is more than 10 volts, go to next step.
- Turn ignition off. Using external ohmmeter, measure resistance between ground and Red instrument cluster connector, terminal No. 4 (Black/Light Green wire). If resistance is 10 ohms or greater, repair open Black/Light Green wire. If resistance is less than 10 ohms, go to next step.
- Turn ignition on. Connect jumper between instrument cluster Blue connector, terminal No. 8 (Violet/Brown wire) and ground. Using scan tool, select BODY, BODY COMPUTER, then SYSTEM TEST. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, go to step 8). If scan tool displays BUS SHORT TO GROUND, go to next step.
- Move jumper wire to terminal No. 7 (White/Dark Blue wire). Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, go to next step. If scan tool displays BUS SHORT TO GROUND, replace instrument cluster.
- Using jumper wire, backprobe BCM 22-pin connector. Connect jumper between terminal No. 11 (White/Dark Blue wire) and ground. Do not disconnect connector. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, replace BCM. If scan tool displays BUS SHORT TO GROUND, repair open White/Dark Blue wire.
- Using jumper wire, backprobe BCM 22-pin connector. Connect jumper wire between terminal No. 1 (Violet/Brown wire) and ground. Do not disconnect connector. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, replace BCM. If scan tool displays BUS SHORT TO GROUND, repair open Violet/Brown wire.
TEST 12B - NO RESPONSE FROM INSTRUMENT CLUSTER
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
Using external ohmmeter, measure resistance between ground and component side of fuse No. 7 (Pink/Red wire). If resistance is less than 5 ohms, repair Pink/Red wire for short to ground and replace fuse No. 7. If resistance is 5 ohms or greater, replace fuse.
TEST 12C - NO RESPONSE FROM INSTRUMENT CLUSTER
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
Using external ohmmeter, measure resistance between ground and component side of fuse No. 11 (Red/Violet wire). If resistance is less than 5 ohms, repair Red/Violet wire for short to ground and replace fuse No. 11. If resistance is 5 ohms or greater, replace fuse.
TEST 13A - NO RESPONSE FROM POWERTRAIN CONTROL MODULE
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
- Disconnect Powertrain Control Module (PCM). PCM is located next to air cleaner. Turn ignition on. Connect jumper wire between ground and PCM connector, terminal No. 59 (Violet/Brown wire).
- Using scan tool, select BODY, BODY COMPUTER, then SYSTEM TEST. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, go to step 5). If scan tool displays BUS SHORT TO GROUND, go to next step.
- Move jumper wire to terminal No. 60 (White/Black wire). Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, go to next step. If scan tool displays BUS SHORT TO GROUND, replace PCM.
- Using jumper wire, backprobe BCM 22-pin connector. Connect jumper wire between terminal No. 13 (White/Dark Green wire) and ground. Do not disconnect connector. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, replace BCM. If scan tool displays BUS SHORT TO GROUND, repair open White/Dark Green wire.
- Using jumper wire, backprobe BCM 14-pin connector. Connect jumper wire between terminal No. 5 (Violet/Brown wire) and ground. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, replace BCM. If scan tool displays BUS SHORT TO GROUND, repair open Violet/Brown wire.
TEST 14A - NO RESPONSE FROM TRANSMISSION CONTROL MODULE
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
- Determine if transmission is operating correctly before proceeding with following testing. See appropriate article in the AUTOMATIC TRANSMISSION section.
- Disconnect Transmission Control Module (TCM). TCM is located at left fenderwell, next to power distribution center. Turn ignition on. Connect jumper wire between ground and TCM connector, terminal No. 43 (Violet/Dark Green wire).
- Using scan tool, select BODY, BODY COMPUTER, then SYSTEM TEST. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, go to step 6). If scan tool displays BUS SHORT TO GROUND, go to next step.
- Move jumper wire to terminal No. 4 (White/Dark Green wire). Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, go to next step. If scan tool displays BUS SHORT TO GROUND, replace TCM.
- Connect jumper wire to ground and backprobe Body Control Module (BCM) 14-pin connector, terminal No. 14 (White/Dark Green wire). Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, replace BCM. If scan tool displays BUS SHORT TO GROUND, repair open White/Dark Green wire.
- Connect jumper wire between ground and Body Control Module (BCM) 14-pin connector, terminal No. 6 (Violet/Dark Green wire). Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, replace BCM. If scan tool displays BUS SHORT TO GROUND, repair open Violet/Dark Green wire.
TEST 15A - NO RESPONSE FROM CCD RADIO
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
- If radio screen is not blank, go to step 4). If radio screen is blank, remove and inspect fuse No. 14. If fuse is open, go to «TEST 15B»(ref-123786-S10545211362001101500000) . If fuse is okay, go to next step.
- Install fuse. Access back of radio. Disconnect radio Gray connector. Turn ignition on. Using external voltmeter, measure voltage on Gray radio connector, terminal No. 6 (Red/White wire). If voltage is 10 volts or less, repair open Red/White wire. If voltage is more than 10 volts, go to next step.
- Measure voltage on Gray radio connector, terminal No. 7 (Pink/White wire). If voltage is 10 volts or less, repair open Pink/White wire. If voltage is more than 10 volts, ensure radio ground circuit and antenna are correctly installed. Repair as needed. If radio ground circuit and antenna were correctly installed, go to next step.
- Disconnect CCD 2-pin connector. Connect jumper wire between ground and CCD 2-pin connector, terminal No. 2 (White/Dark Blue wire).
- Using scan tool, select BODY, BODY COMPUTER, then SYSTEM TEST. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open White/Dark Blue wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
- Move jumper wire to terminal No. 1 (Violet/Brown wire). Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open Violet/Brown wire). If scan tool displays BUS SHORT TO GROUND, replace radio.
TEST 15B - NO RESPONSE FROM CCD RADIO
Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.
| CAUTION | Always turn ignition off prior to disconnecting any module connector. |
Turn ignition off. Disconnect radio Gray connector. Using external ohmmeter, measure resistance between ground and terminal No. 7 (Pink/White wire). If resistance is less than 5 ohms, repair Pink/White wire for short to ground. If resistance is 5 ohms or greater, replace radio.