Body Control Computer: Diagnosis Dodge Caravan III

SELF-DIAGNOSTIC SYSTEM

PRETEST INSPECTION

Before proceeding with diagnosis, the following precautions must be followed

1. Vehicle must have a fully charged battery and functional charging system.
2. Always start at SYMPTOM ID TEST 1A - IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS. Starting with any other test may result in incorrect results.
3. Only perform test steps indicated. It is NOT necessary to perform all steps in a test.
4. VEHICLE COMMUNICATIONS TESTS should only be used when instructed to do so by another test. Always start at SYMPTOM ID TEST 1A.
5. Turn ignition switch to OFF position before disconnecting or connecting components.
6. Use extreme care when connecting or disconnecting wiring during testing to prevent accidental grounding or shorting.
7. DO NOT use a test light in place of a voltmeter.
8. Always disconnect scan tool after use.
9. Always disconnect scan tool before charging battery.
10. 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 . When directed to go to next step, disregard step if vehicle is not equipped with module being tested.

Note. Perform a visual inspection before proceeding with this test.

1. Connect scan tool to Data Link Connector (DLC). DLC is a 16-pin connector located on left side of steering column. Turn ignition switch to ON position. If scan tool display is not blank, go to next step. If scan tool display is blank, see «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000) .
2. Using scan tool, select BODY SYSTEM, then BODY COMPUTER. Scan tool will perform a CCD bus test. If scan tool displays BUS FAILED or NO RESPONSE, see «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000) . If scan tool does not display BUS FAILED or NO RESPONSE, go to next step.
3. Using scan tool, select SENSOR DISPLAY and read IGNITION VOLTAGE. If scan tool displays less than 10 volts, see «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000) . If scan tool displays 10 volts or greater, go to next step.
4. Using scan tool, select READ DTCs. If any Diagnostic Trouble Codes (fault messages) are present, go to «SYMPTOM ID TEST 1B»(ref-123787-S32313748662001101500000) - IDENTIFYING FAULT MESSAGES. If no fault messages are present, go to SYSTEM DIAGNOSTIC TEST DIRECTORY table for specific diagnosis. Systems listed are diagnosed using a scan tool. Malfunctions in these systems 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.

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 SYMPTOM ID TEST 1A, record message(s) displayed and perform appropriate test(s). See SCAN TOOL MESSAGE DIRECTORY table.

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 10 faults. Identify fault(s) listed in CHIME SYSTEM DIAGNOSTIC TEST DIRECTORY table and perform indicated test(s).

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.

Ensure all doors are closed. Turn ignition switch to ON position. Using scan tool, actuate chime test. If chime sounds, system is functional. If chime does not sound, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)

Identifying Junction Block/BCM Connectors. Scheme 16

CHIME TEST 3A - CHIME SOUNDS WITH DRIVER'S 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.

1. Ensure ignition is off. Fasten driver's seat belt. Turn ignition on. If chime does not sound, chime system is currently functioning correctly. If chime sounds, go to next step.
2. Using scan tool, read seat belt switch status. If scan tool does not display SEAT BELT SWITCH: CLOSED, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If scan tool displays SEAT BELT SWITCH: CLOSED, go to next step.
3. Disconnect driver's 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 SWITCH: CLOSED, go to next step. If scan tool does not display SEAT BELT SWITCH: CLOSED, replace driver's seat belt switch.
4. Turn ignition off. Disconnect BCM connector "B" and ensure connector is clean and not damaged. (Scheme 16)in CHIME TEST 2A. Using scan tool, read seat belt switch status. If scan tool displays SEAT BELT SWITCH: CLOSED, replace BCM. If scan tool does not display SEAT BELT SWITCH: CLOSED, repair Light Green/Red wire between driver's seat belt switch and BCM "B" connector for short to ground.

CHIME TEST 4A - CHIME SOUNDS WITH DRIVER'S DOOR OPEN

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.

1. Ensure all interior and exterior lights are off. Remove ignition key and open driver's door. If chime does not sound, system is currently functioning correctly. If chime sounds, go to next step.
2. Using scan tool, read key-in ignition switch status. If scan tool displays KEY-IN IGNITION SW: CLOSED, go to «CHIME TEST 4B»(ref-123787-S02851105692001101500000). If scan tool does not display KEY-IN IGNITION SW: CLOSED, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.

CHIME TEST 4B - CHIME SOUNDS WITH DRIVER'S DOOR OPEN

Note. Perform CHIME 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.

1. Disconnect key-in ignition switch connector. (Scheme 17) Using scan tool, read key-in ignition switch status. If scan tool displays KEY-IN IGNITION SW: CLOSED, go to next step. If scan tool does not display KEY-IN IGNITION SW: CLOSED, replace ignition switch. See STEERING COLUMN SWITCHES article in the ACCESSORIES/SAFETY EQUIPMENT section.
2. Turn ignition off. Disconnect Body Control Module (BCM) connector "A". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove ignition key. Ensure all lights and accessories are off. Close all doors. Go to next step.
3. Using external ohmmeter, measure resistance between ground and terminal No. 4 (Light Blue wire) on BCM connector "A". If resistance is less than 10 ohms, repair Light Blue wire between BCM and ignition switch for short to ground. If resistance is 10 ohms or greater, replace BCM.

Identifying Steering Column Harness Connector Locations. Scheme 17

CHIME TEST 5A - CHIME INOPERATIVE WITH DOME 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.

1. Open driver's door. Using scan tool, read door ajar status. If scan tool displays DRDOOR AJAR SWITCH: CLOSED, go to next step. If scan tool does not display DRDOOR AJAR SWITCH: CLOSED, go to «DOOR AJAR TEST 3A»(ref-123787-S14469818892001101500000).
2. Remove ignition key. Using scan tool, read key-in ignition switch status. If scan tool displays KEY-IN IGNITION SW: CLOSED, go to «CHIME TEST 4B»(ref-123787-S02851105692001101500000). If scan tool does not display KEY-IN IGNITION SW: CLOSED, go to next step.
3. Turn dome lights on. If dome lights do not illuminate, go to «INTERIOR LIGHT TEST 1A»(ref-123787-S19146601082001101500000). If dome lights illuminate, determine if chime sounds. If chime does not sound, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If chime sounds, system is currently functioning correctly.

CHIME TEST 6A - 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.

1. Ensure all exterior lights are functioning properly. If any exterior lights do not illuminate, go to «EXTERIOR LIGHT TEST 1A»(ref-123787-S15649231372001101500000). If all lights are functioning, go to next step.
2. Open driver's door. Using scan tool, read door ajar status. If scan tool displays DRDOOR AJAR SWITCH: CLOSED, go to next step. If scan tool does not display DRDOOR AJAR SWITCH: CLOSED, go to «DOOR AJAR TEST 3A»(ref-123787-S14469818892001101500000).
3. Remove ignition key. Using scan tool, read key-in ignition switch status. If scan tool does not display KEY-IN IGNITION SW: OPEN, go to «CHIME TEST 4B»(ref-123787-S02851105692001101500000). If scan tool displays KEY-IN IGNITION SW: OPEN, go to next step.
4. Turn on parking lights. If chime does not sound, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If chime sounds, turn on headlights. If chime does not sound, replace BCM. If chime sounds, system is currently functioning correctly.

CHIME TEST 7A - CHIME INOPERATIVE WITH DRIVER'S DOOR OPEN & 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.

1. Turn ignition off. Open driver's door. If chime does not sound, go to next step. If chime sounds, system is currently functioning correctly.
2. Using scan tool, read driver's door ajar switch status. If scan tool displays DRDOOR AJAR SWITCH: CLOSED, go to next step. If scan tool does not display DRDOOR AJAR SWITCH: CLOSED, go to «DOOR AJAR TEST 3A»(ref-123787-S14469818892001101500000).
3. Using scan tool, read key-in ignition switch status. If scan tool does not display KEY-IN IGNITION SW: CLOSED, go to next step. If scan tool displays KEY-IN IGNITION SW: CLOSED, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.
4. Disconnect key-in ignition switch connector. (Scheme 17)in CHIME TEST 4B. Connect jumper wire between connector terminals. Using scan tool, read key-in ignition switch status. If scan tool does not display KEY-IN IGNITION SW: CLOSED, go to next step. If scan tool displays KEY-IN IGNITION SW: CLOSED, replace ignition switch. See STEERING COLUMN SWITCHES article in the ACCESSORIES/SAFETY EQUIPMENT section.
5. Connect jumper wire between ground and Light Blue wire on key-in ignition switch connector. Using scan tool, read key-in ignition switch status. If scan tool does not display KEY-IN IGNITION SW: CLOSED, go to next step. If scan tool displays KEY-IN IGNITION SW: CLOSED, repair open ground (Black wire) circuit.
6. Access Body Control Module (BCM) connector "A". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect connector. Connect jumper wire between terminal No. 4 (Light Blue wire) and chassis ground. Go to next step.
7. Using scan tool, read key-in ignition switch status. If scan tool does not display KEY-IN IGNITION SW: CLOSED, replace BCM. If scan tool displays KEY-IN IGNITION SW: CLOSED, repair open Light Blue wire between BCM and ignition switch.

CHIME TEST 8A - CHIME INOPERATIVE WITH DRIVER'S 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.

1. Turn ignition off. Ensure driver's seat belt is unfastened and driver's door is closed. Turn ignition on. If chime sounds, system is currently functioning correctly. If chime does not sound, go to next step.
2. Using scan tool, read seat belt switch status. If scan tool does not display SEAT BELT SWITCH: CLOSED, go to next step. If scan tool displays SEAT BELT SWITCH: CLOSED, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.
3. Disconnect driver's seat belt switch connector and ensure connector is clean and not damaged. Connect a jumper wire between harness connector terminals. Using scan tool, read seat belt switch status. If scan tool does not display SEAT BELT SWITCH: CLOSED, go to next step. If scan tool displays SEAT BELT SWITCH: CLOSED, replace driver's seat belt switch.
4. Connect jumper wire between ground and terminal No. 1 (Light Green/Red wire) on driver's seat belt switch harness connector. Using scan tool, read seat belt switch status. If scan tool does not display SEAT BELT SWITCH: CLOSED, go to next step. If scan tool displays SEAT BELT SWITCH: CLOSED, repair open ground (Black wire) circuit.
5. Access Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect connector. Connect jumper wire between terminal No. 78 (Light Green/Red wire) and ground. Go to next step.
6. Using scan tool, read seat belt switch status. If scan tool displays SEAT BELT: CLOSED, repair open Light Green/Red wire between driver's seat belt switch and BCM. If scan tool does not display SEAT BELT: CLOSED, replace BCM.

CHIME TEST 9A - CHIME INOPERATIVE WITH TURN SIGNAL 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.

1. Test drive vehicle. If speedometer is not functioning properly, go to «INSTRUMENT CLUSTER TEST 1A»(ref-123787-S33761371112001101500000) . If speedometer is functioning, operate turn signal in both directions. If turn signal does not function correctly, repair as needed. Go to next step.
2. Operate left turn signal. Using scan tool, read turn signal status. If scan tool displays OPEN, then CLOSED, go to next step. If scan tool does not display OPEN, then CLOSED, go to «CHIME TEST 9B»(ref-123787-S13380259272001101500000) .
3. Operate right turn signal. Using scan tool, read turn signal status. If scan tool displays OPEN, then CLOSED, go to next step. If scan tool does not display OPEN, then CLOSED, go to «CHIME TEST 9B»(ref-123787-S13380259272001101500000) .
4. Using scan tool, read turn signal status. If scan tool displays ENABLED, go to «CHIME TEST 9C»(ref-123787-S39692619342001101500000) . If scan tool does not display ENABLED, enable turn signal chime with scan tool. Go to «CHIME TEST 9C»(ref-123787-S39692619342001101500000) .

CHIME TEST 9B - CHIME INOPERATIVE WITH TURN SIGNAL ON

Note. Perform CHIME TEST 9A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Disconnect Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Gain access to junction block/BCM internal 23-pin connector. Go to next step.
2. Turn ignition on. Operate left turn signal. Using a test light, probe internal connector terminal No. 20. If test light flashes, go to next step. If test light does not flash, replace junction block.
3. Operate right turn signal. Move test light probe to terminal No. 21. If test light flashes, replace BCM. If test light does not flash, replace junction block.

CHIME TEST 9C - CHIME INOPERATIVE WITH TURN SIGNAL ON

Note. Perform CHIME TEST 9A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

Raise and support vehicle. Start engine and move shift selector lever to "D" position. Turn on left turn signal. Increase vehicle speed to more than 20 MPH. Maintain speed for one mile. If chime sounds, system is currently functioning properly. If chime does not sound, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.

CHIME TEST 10A - CHIME INOPERATIVE WITH LOW OIL PRESSURE

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.

1. Turn ignition on. Using scan tool, actuate chime. If chime does not sound, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If chime sounds, go to next step.
2. If oil warning light is not illuminated, go to «INFORMATION CENTER TEST 2A»(ref-123787-S16206458342001101500000). If oil warning light is illuminated, disconnect Oil Pressure Switch (OPS). See OPS LOCATION table. Go to next step. OPS LOCATION Engine Location 2.4L Side Of Block, Near Transaxle 3.0L Next To Oil Filter 3.3L & 3.8L Below A/C Compressor
3. If oil warning light is illuminated, go to «INFORMATION CENTER TEST 2A»(ref-123787-S16206458342001101500000). If oil warning light is not illuminated, connect a jumper wire between ground and Gray wire on OPS connector. Start engine and allow to idle for 20 seconds. Go to next step.
4. Increase engine speed to 1600 RPM. If chime sounds, system is currently functioning properly. If chime does not sound, replace BCM.

CHIME TEST 11A - CHIME INOPERATIVE WITH EXTREME COOLANT TEMPERATURE

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.

1. Using scan tool, actuate chime. 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 16)in CHIME TEST 2A.
2. Using scan tool, actuate engine temperature light. If engine temperature light does not illuminate, go to «INFORMATION CENTER TEST 4A»(ref-123787-S04957175662001101500000). If engine temperature light illuminates, go to next step.
3. Determine actual engine coolant temperature. If coolant temperature is extremely high, repair cooling system as needed. If coolant temperature is normal, system is currently functioning correctly.

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.

1. Using scan tool, select COMPASS/MINI-TRIP. If scan tool displays NO RESPONSE, or Compass/Mini-Trip Computer (CMTC) shows NO DISPLAY (except for direction or temperature), go to «TEST 5A»(ref-123787-S04164716402001101500000) in VEHICLE COMMUNICATIONS TESTS.
2. Select AUTO SELF TEST. If any display segments fail to illuminate, replace CMTC module. If CMTC displays FAILED, replace CMTC module.
3. 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-123787-S40555539782001101500000) CMTC Displays OC «CMTC TEST 3A»(ref-123787-S06433238742001101500000) Incorrect Reading (5 Degree Variation) «CMTC TEST 4A»(ref-123787-S17075899322001101500000) Average MPG Or Fuel Economy (1) «CMTC TEST 5A»(ref-123787-S01511198552001101500000) Trip Odometer Inoperative Or Wrong «CMTC TEST 5A»(ref-123787-S01511198552001101500000) Distance To Empty Inoperative Or Wrong «INSTRUMENT CLUSTER TEST 3A»(ref-123787-S36471166612001101500000) Elapsed Time Inoperative Or Wrong «CMTC TEST 6A»(ref-123787-S37394451752001101500000) (1) Average MPG or fuel economy is inoperative or wrong. MPG calculations are only accurate to within 10 miles.
4. 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.

1. Disconnect ambient 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.
2. Turn ignition off. Disconnect CMTC connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 5 (Violet/Light Green wire) on CMTC harness connector. If resistance is less than 5 ohms, repair Violet/Light Green wire between CMTC module and ambient temperature sensor for short to ground. If resistance is 5 ohms or greater, go to next step.
3. Using external ohmmeter, measure resistance between terminals No. 2 (Black/Light Blue wire) and No. 5 (Violet/Light Green wire) on CMTC harness connector. 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.

1. Disconnect ambient 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 sensor. If CMTC does not display SC, go to next step.
2. Turn ignition off. Disconnect jumper wire. Disconnect CMTC module connector. Connect jumper wires between ground and each terminal of ambient temperature sensor harness connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 5 (Violet/Light Green wire) on CMTC module harness connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open Violet/Light Green wire between CMTC module and ambient temperature sensor.
3. With jumper wires still connected, measure resistance at terminal No. 2 (Black/Light Blue wire) on CMTC module 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 CMTC module and ambient 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.

1. Disconnect and remove ambient 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
2. 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.
3. Using scan tool in ohmmeter mode, measure resistance at terminal No. 1 (Black/Light Blue wire) on ambient temperature sensor connector. If resistance is less than 5 ohms, go to step 5). If resistance is 5 ohms or greater, go to next step.
4. Connect jumper wire between ground and terminal No. 1 (Black/Light Blue wire) at sensor connector. Disconnect CMTC module connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 2 (Black/Light Blue wire) on CMTC module 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 CMTC module and ambient temperature sensor.
5. Connect ambient temperature sensor. Disconnect CMTC module connector. Using external ohmmeter, measure resistance between terminals No. 2 (Black/Light Blue wire) and No. 5 (Violet/Light Green wire) on harness connector. Compare ohmmeter reading with «AMBIENT TEMPERATURE SENSOR SPECIFICATIONS»(ref-123787-S19733278222001101500000) table. Go to next step.
6. If resistance measurement corresponds with AMBIENT TEMPERATURE SENSOR SPECIFICATIONS table, replace CMTC module. If reading does not correspond, disconnect ambient temperature sensor. Go to next step.
7. Using scan tool in ohmmeter mode, measure resistance at 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.
8. Move scan tool probe 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.

1. Turn ignition on. Using scan tool, read engine information under monitor display. If scan tool displays NO RESPONSE, see «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000) . If scan tool does not display NO RESPONSE, go to next step.
2. Observe TP sensor while depressing accelerator pedal. If TP sensor percent does not increase while operating throttle, see TESTS W/CODES article in the ENGINE PERFORMANCE section. If TP sensor percent does increase, go to next step.
3. 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.

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 under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If lights do not illuminate, see VEHICLE COMMUNICATIONS TESTS.

DOOR AJAR TEST 1A - IDENTIFYING DOOR AJAR 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.

1. Ensure all doors are closed and properly aligned. Turn ignition from OFF to ON position. If door ajar and liftgate graphic symbols fail to illuminate, go to «INSTRUMENT CLUSTER TEST 1A»(ref-123787-S33761371112001101500000) . If both symbols illuminate, go to next step.
2. Using scan tool, enter BODY SYSTEM, then BODY COMPUTER. Select INPUTS/OUTPUTS. Observe door and liftgate ajar switch status. Individually open and close all doors and liftgate. Scan tool should display status opposite of actual door position.
3. If scan tool displays ajar switch status CLOSED when door is closed, perform appropriate SHORTED test. See DOOR AJAR SYMPTOM DIRECTORY table. If scan tool displays ajar switch status OPEN when door is open, perform appropriate OPEN test. See DOOR AJAR SYMPTOM DIRECTORY table.

DOOR AJAR SYMPTOM DIRECTORY

DOOR AJAR TEST 2A - DRIVER'S 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.

1. Disconnect driver's door ajar switch. Using scan tool, read left front door ajar switch status. If scan tool displays DRDOOR AJAR SWITCH: CLOSED, go to next step. If scan tool does not display DRDOOR AJAR SWITCH: CLOSED, replace door ajar switch.
2. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool, read left front door ajar switch status. If scan tool displays DRDOOR AJAR SWITCH: CLOSED, replace BCM. If scan tool does not display DRDOOR AJAR SWITCH: CLOSED, repair Tan wire between driver's door ajar switch and BCM for short to ground.

DOOR AJAR TEST 3A - DRIVER'S 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.

1. Disconnect driver's 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.
2. Connect a jumper wire between left front door ajar switch connector (Tan wire) and chassis ground. Using scan tool, read left front door ajar switch status. If scan tool displays DRDOOR AJAR SWITCH: CLOSED, replace left front door ajar switch. If scan tool does not display DRDOOR AJAR SWITCH: CLOSED, go to next step.
3. Disconnect jumper wire. Locate Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect connector. Connect jumper wire between chassis ground and terminal No. 79 (Tan wire). Using scan tool, read left front door ajar switch status. If scan tool displays DRDOOR AJAR SWITCH: CLOSED, repair open in Tan wire between left front door ajar switch and BCM. If scan tool does not display DRDOOR AJAR SWITCH: CLOSED, replace BCM.

DOOR AJAR TEST 4A - PASSENGER'S 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.

1. Disconnect passenger's door ajar switch. Using scan tool, read right front door ajar switch status. If scan tool displays PASSDOOR AJAR SWITCH: CLOSED, go to next step. If scan tool does not display PASSDOOR AJAR SWITCH: CLOSED, replace door ajar switch.
2. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool, read right front door ajar switch status. If scan tool displays PASSDOOR AJAR SWITCH: CLOSED, replace BCM. If scan tool does not display PASSDOOR AJAR SWITCH: CLOSED, repair Tan/Red wire between passenger's door ajar switch and BCM for short to ground.

DOOR AJAR TEST 5A - PASSENGER'S 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.

1. Disconnect passenger's 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.
2. Connect a jumper wire between right front door ajar switch connector (Tan/Red wire) and chassis ground. Using scan tool, read right front door ajar switch status. If scan tool displays PASSDOOR AJAR SWITCH: CLOSED, replace right front door ajar switch. If scan tool does not display PASSDOOR AJAR SWITCH: CLOSED, go to next step.
3. Disconnect jumper wire. Locate Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect connector. Connect jumper wire between chassis ground and terminal No. 48 (Tan/Red wire). Using scan tool, read right front door ajar switch status. If scan tool displays PASSDOOR AJAR SWITCH: CLOSED, repair open in Tan/Red wire between right front door ajar switch and BCM. If scan tool does not display PASSDOOR AJAR SWITCH: CLOSED, replace BCM.

DOOR AJAR TEST 6A - RIGHT SLIDING 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.

1. Disconnect right sliding door ajar switch. Using scan tool, read right sliding door ajar switch status. If scan tool displays RSLIDE DR AJAR SWITCH: CLOSED, go to next step. If scan tool does not display RSLIDE DR AJAR SWITCH: CLOSED, replace door ajar switch.
2. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool, read right sliding door ajar switch status. If scan tool displays RSLIDE DR AJAR SWITCH: CLOSED, replace BCM. If scan tool does not display RSLIDE DR AJAR SWITCH: CLOSED, repair Tan/Yellow wire between right sliding door ajar switch and BCM for short to ground.

DOOR AJAR TEST 7A - RIGHT SLIDING 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.

1. Disconnect right sliding door ajar switch and ensure connector is clean and not damaged. Ensure 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.
2. Connect a jumper wire between right sliding door ajar switch connector (Tan/Yellow wire) and chassis ground. Using scan tool, read right sliding door ajar switch status. If scan tool displays RSLIDE DR AJAR: CLOSED, replace door ajar switch. If scan tool does not display RSLIDE DR AJAR: CLOSED, go to next step.
3. Disconnect jumper wire. Locate Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect connector. Connect jumper wire between chassis ground and terminal No. 77 (Tan/Yellow wire). Using scan tool, read right front door ajar switch status. If scan tool displays RSLIDE DR AJAR SWITCH: CLOSED, repair open in Tan/Yellow wire between right sliding door ajar switch and BCM. If scan tool does not display RSLIDE DR AJAR SWITCH: CLOSED, replace BCM.

DOOR AJAR TEST 8A - SHORTED LIFTGATE AJAR 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.

1. Disconnect liftgate ajar switch. Using scan tool, read liftgate ajar switch status. If scan tool displays LIFTGATE AJAR SWITCH: CLOSED, go to next step. If scan tool does not display LIFTGATE AJAR SWITCH: CLOSED, replace liftgate ajar switch.
2. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool, read liftgate ajar switch status. If scan tool displays LIFTGATE AJAR SWITCH: CLOSED, replace BCM. If scan tool does not display LIFTGATE AJAR SWITCH: CLOSED, repair Tan/Black wire between liftgate ajar switch and BCM for short to ground.

DOOR AJAR TEST 9A - LIFTGATE 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.

1. Disconnect liftgate ajar switch and ensure connector is clean and not damaged. Ensure liftgate 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.
2. Connect a jumper wire between liftgate ajar switch connector (Tan/Black wire) and chassis ground. Using scan tool, read liftgate ajar switch status. If scan tool displays LIFTGATE AJAR SWITCH: CLOSED, replace left front door ajar switch. If scan tool does not display LIFTGATE AJAR SWITCH: CLOSED, go to next step.
3. Disconnect jumper wire. Locate Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect connector. Connect jumper wire between chassis ground and terminal No. 59 (Tan/Black wire). Using scan tool, read left front door ajar switch status. If scan tool displays LIFTGATE AJAR SWITCH: CLOSED, repair open in Tan/Black wire between liftgate ajar switch and BCM. If scan tool does not display LIFTGATE AJAR SWITCH: CLOSED, replace BCM.

DOOR AJAR TEST 10A - LEFT SLIDING 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.

1. Disconnect left sliding door ajar switch. Using scan tool, read left sliding door ajar switch status. If scan tool displays LSLIDE DR AJAR SWITCH: CLOSED, go to next step. If scan tool does not display LSLIDE DR AJAR SWITCH: CLOSED, replace door ajar switch.
2. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool, read left sliding door ajar switch status. If scan tool displays LSLIDE DR AJAR SWITCH: CLOSED, replace BCM. If scan tool does not display LSLIDE DR AJAR SWITCH: CLOSED, repair Tan/Orange wire between left sliding door ajar switch and BCM for short to ground.

DOOR AJAR TEST 11A - LEFT SLIDING 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.

1. Disconnect left sliding door ajar switch and ensure connector is clean and not damaged. Ensure 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.
2. Connect a jumper wire between left sliding door ajar switch connector (Tan/Orange wire) and chassis ground. Using scan tool, read left sliding door ajar switch status. If scan tool displays LSLIDE DR AJAR: CLOSED, replace door ajar switch. If scan tool does not display LSLIDE DR AJAR: CLOSED, go to next step.
3. Disconnect jumper wire. Locate Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect connector. Connect jumper wire between chassis ground and terminal No. 47 (Tan/Orange wire). Using scan tool, read left front door ajar switch status. If scan tool displays LSLIDE DR AJAR SWITCH: CLOSED, repair open in Tan/Orange wire between left sliding door ajar switch and BCM. If scan tool does not display LSLIDE DR AJAR SWITCH: CLOSED, replace BCM.

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.

Exterior lighting system consists of headlights (with time delay), parking lights and underhood lights. Identify problems(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.

EXTERIOR LIGHT SYSTEM DIAGNOSTIC TEST DIRECTORY

EXTERIOR LIGHT TEST 2A - HEADLIGHTS WILL NOT TURN ON

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.

1. If both headlights do not illuminate, go to step 3). If only one headlight does not illuminate, inspect appropriate fuse in Power Distribution Center (PDC). Inspect fuse No. 23 for left headlight, fuse No. 22 for right headlight. (Scheme 18) Replace fuse as needed. If fuse is okay, go to next step.
2. Reinstall fuse. Disconnect inoperative headlight connector. Using scan tool in voltmeter mode, measure voltage on terminal No. 3 (Violet wire (left), Violet/Red wire (right). If voltage is more than 10 volts, replace headlight. If voltage is 10 volts or less, repair open Violet or Violet/Red wire.
3. Using scan tool, actuate headlight relay. If headlights do not illuminate, go to step 7). If headlights illuminate, turn on headlight switch. Using scan tool, read headlamp switch sense. If scan tool displays HEADLAMP SWITCH: CLOSED, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If scan tool does not display HEADLAMP SWITCH: CLOSED, go to next step.
4. Access BCM connector "A". Remove connector cover. Do not disconnect connector. Connect jumper wire between chassis ground and terminal No. 13 (Light Green/Orange wire). Using scan tool, read headlamp switch sense. If scan tool displays HEADLAMP SWITCH: CLOSED, go to next step. If scan tool does not display HEADLAMP SWITCH: CLOSED, replace BCM.
5. Disconnect jumper wire. Disconnect headlight switch connector. Connect jumper wire between ground and terminal No. 3 (Light Green/Orange wire) on headlight switch connector. Using scan tool, read headlamp switch sense. If scan tool displays HEADLAMP SWITCH: CLOSED, go to next step. If scan tool does not display HEADLAMP SWITCH: CLOSED, repair open Light Green/Orange wire.
6. Using scan tool in ohmmeter mode, measure resistance at terminal No. 2 (Black wire) on headlight switch connector. If resistance is less than 5 ohms, replace headlight switch. If resistance is 5 ohms or greater, repair open Black wire.
7. Stop headlight relay actuation. Remove and inspect fuses No. 22 and 23. Replace as needed. Reinstall fuses. Disconnect headlight low beam relay. (Scheme 18) Using scan tool in voltmeter mode, measure voltage on relay socket terminal "A". Go to next step.
8. If voltage is 10 volts or less, replace Power Distribution Center (PDC). If voltage is more than 10 volts, connect jumper wire between low beam relay socket terminals "A" and "D". If headlights do not illuminate, go to «EXTERIOR LIGHT TEST 2B»(ref-123787-S01337354252001101500000). If headlights illuminate, go to next step.
9. Remove jumper wire. Install low beam headlight relay. Disconnect multifunction switch connector. (Scheme 17)in CHIME TEST 4B. Connect jumper wire between ground and terminal No. 10 (Orange/White wire) on multifunction switch connector. If headlights illuminate, go to step 11). If headlights do not illuminate, go to next step.
10. Disconnect low beam headlight relay. (Scheme 18) Using scan tool in ohmmeter mode, measure resistance at terminal "C" on relay socket. If resistance is less than 5 ohms, replace low beam headlight relay. If resistance is 5 ohms or greater, repair open low beam relay control circuit. See HEADLIGHTS in the SYSTEM WIRING DIAGRAMS article in the WIRING DIAGRAMS section.
11. Remove jumper wire. Connect jumper wire between multifunction switch connector terminal No. 9 (Red/Yellow wire) and chassis ground. Access junction block connector "D". (Scheme 16)in CHIME TEST 2A. Go to next step.
12. Using scan tool in ohmmeter mode, backprobe junction block connector "D", terminal No. 32 (Red/Yellow wire). If resistance is less than 5 ohms, replace multi-function switch. If resistance is 5 ohms or greater, repair open Red/Yellow wire. See HEADLIGHTS in the SYSTEM WIRING DIAGRAMS article in the WIRING DIAGRAMS section.

Identifying Power Distribution Center Components. Scheme 18

EXTERIOR LIGHT TEST 2B - HEADLIGHTS WILL NOT TURN ON

Note. Perform EXTERIOR 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.

1. Ensure jumper wire is still connected between low beam relay socket terminals "A" and "D". Remove Power Distribution Center (PDC) fuse No. 22 or 23. Using scan tool in voltmeter mode, measure voltage on B+ terminal of fuse socket. If voltage is 10 volts or less, repair or replace PDC. If voltage is more than 10 volts, go to next step.
2. Reinstall fuse and disconnect either right or left headlight connector. Using scan tool in voltmeter mode, measure voltage on terminal No. 3 (Violet wire left, Violet/Red wire right). If voltage is more than 10 volts, replace headlight. If voltage is 10 volts or less, repair open Violet or Violet/Red wire.

EXTERIOR LIGHT TEST 3A - 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.

1. Using scan tool, read headlight switch sense. If scan tool displays HEADLAMP SW: CLOSED, go to next step. If scan tool does not display HEADLAMP SW: CLOSED, go to step 4).
2. Disconnect headlight switch. Read headlight switch sense. If scan tool displays HEADLAMP SW: CLOSED, go to next step. If scan tool does not display HEADLAMP SW: CLOSED, replace headlight switch.
3. Disconnect junction block connector "A". (Scheme 16)in CHIME TEST 2A. Using scan tool in ohmmeter mode, measure resistance on headlight switch connector terminal No. 3 (Light Green/Orange wire). If resistance is less than 5 ohms, repair Light Green/Orange wire for short to ground. If resistance is 5 ohms or greater, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.
4. Disconnect low beam headlight relay. (Scheme 18)in EXTERIOR LIGHT TEST 2A. If headlights turn off, go to next step. If headlights do not turn off, replace Power Distribution Center (PDC).
5. Disconnect multifunction switch connector. (Scheme 17)in CHIME TEST 4B. Using scan tool in ohmmeter mode, measure resistance on terminal No. 10 (Orange/White wire). If resistance is less than 5 ohms, repair Orange/White wire for short to ground. If resistance is 5 ohms or greater, go to next step.
6. Measure resistance on terminal No. 9 (Red/Yellow wire). If resistance is less than 5 ohms, repair Red/Yellow wire for short to ground. If resistance is 5 ohms or greater, replace low beam headlight relay.

EXTERIOR LIGHT TEST 4A - PARKING LIGHTS WILL NOT TURN ON

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.

1. If both parking lights are inoperative, go to step 3). Remove and inspect fuse in junction block for inoperative light. (Scheme 19) Inspect fuse No. 4 for right light, fuse No. 6 for left light. Replace fuse as needed. If fuse is okay, go to next step.
2. Install fuse and disconnect inoperative parking light connector. Using scan tool in voltmeter mode, measure voltage on terminal No. 2 (middle terminal). If voltage is more than 10 volts, replace bulb. If voltage is 10 volts or less, repair open Brown/Yellow wire for left parking light or Dark Green/Yellow wire for right parking light.
3. Using scan tool, actuate parking light relay. If parking lights do not illuminate, go to step 9). If parking lights illuminate, go to next step.
4. Turn on headlight switch. Using scan tool, read park lamp switch sense. If scan tool displays PARK LAMP SWITCH: CLOSED, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If scan tool does not display PARK LAMP SWITCH: CLOSED, go to next step.
5. Access BCM connector "A". (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect connector. Connect jumper wire between ground and terminal No. 40 (Light Green/Red wire) on BCM connector "A". Go to next step.
6. Read park lamp switch sense. If scan tool displays PARK LAMP SWITCH: CLOSED, replace Body Control Module (BCM). If scan tool does not display PARK LAMP SWITCH: CLOSED, disconnect jumper wire. Disconnect headlight switch connector. Go to next step.
7. Connect jumper wire between ground and terminal No. 8 (Light Green/Red wire) on headlight connector. If scan tool does not display PARK LAMP SWITCH: CLOSED, repair open Light Green/Red wire. If scan tool displays PARK LAMP SWITCH: CLOSED, go to next step.
8. Using scan tool in ohmmeter mode, measure resistance on headlight connector terminal No. 2 (Black wire). If resistance is less than 5 ohms, replace headlight switch. If resistance is 5 ohms or greater, repair open Black wire.
9. Stop parking light relay actuation. Remove and inspect junction block fuses No. 4 and 6. (Scheme 19) Replace fuses as needed. If fuses are okay, reinstall in junction block. Remove parking lamp relay from Power Distribution Center (PDC). Using scan tool in voltmeter mode, measure voltage on terminal "A" of relay socket. If voltage is 10 volts or less, repair or replace PDC. If voltage is more than 10 volts, go to next step.
10. Using scan tool in voltmeter mode, measure voltage on terminal "B" of relay socket. If voltage is 10 volts or less, repair or replace PDC. If voltage is more than 10 volts, go to next step.
11. Disconnect scan tool probe. Connect jumper wire between relay socket terminals "A" and "D". If parking lights illuminate, go to next step. If parking lights do not illuminate, repair open park lamp relay output circuit.
12. Connect test light between terminals "A" and "C" on park lamp relay socket. (Scheme 19) Using scan tool, actuate park lamp relay. If test light flashes when scan tool actuates park lamp relay, replace relay. If test light does not flash, go to next step.
13. Do not disconnect test light. Access junction block connector "B". (Scheme 16)in CHIME TEST 2A. Do not disconnect connector. Connect jumper wire between ground and terminal No. 26 (Pink/Dark Blue wire). If test light illuminates, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. If test light does not illuminate, repair open park lamp relay control circuit.

Identifying Lower Junction Block Components. Scheme 19

EXTERIOR LIGHT TEST 4B - PARKING LIGHT RELAY LOSS OF BATTERY VOLTAGE

Note. Perform EXTERIOR LIGHT 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.

Remove and inspect Power Distribution Center (PDC) fuse No. 6. Replace fuse as needed. If fuse is okay, replace PDC.

EXTERIOR LIGHT TEST 5A - PARKING LIGHTS 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.

1. Using scan tool, read park lamp switch sense. If scan tool displays PARK LAMP SW: CLOSED, go to next step. If scan tool does not display PARK LAMP SW: CLOSED, go to step 4).
2. Disconnect headlight switch. If scan tool displays PARK LAMP SW: CLOSED, go to next step. If scan tool does not display PARK LAMP SW: CLOSED, replace headlight switch.
3. Disconnect junction block connector "A". (Scheme 16)in CHIME TEST 2A. Using scan tool in ohmmeter mode, measure resistance on headlight switch connector terminal No. 8 (Light Green/Red wire). If resistance is less than 5 ohms, repair Light Green/Red wire for short to ground. If resistance is 5 ohms or greater, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.
4. Disconnect park lamp relay. (Scheme 18)in EXTERIOR LIGHT TEST 2A. If parking lights turn off, go to next step. If parking lights do not turn off, repair park lamp relay output circuit for short to voltage.
5. Using external ohmmeter, measure resistance between ground and terminal "C" on park lamp relay socket. If resistance is 100 ohms or greater, replace park lamp relay. If resistance is less than 100 ohms, repair park lamp relay control circuit for short to ground.

EXTERIOR LIGHT TEST 6A - UNDERHOOD LIGHTS WILL NOT TURN ON

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.

1. Determine if courtesy lights are operating correctly. If courtesy lights do not operate correctly, go to «INTERIOR LIGHT TEST 1A»(ref-123787-S19146601082001101500000) . If courtesy lights do operate correctly, go to next step.
2. Remove and inspect underhood light bulbs. Replace as needed. Using scan tool in voltmeter mode, measure voltage at Pink/Violet wire on underhood bulb socket. If voltage is less than 10 volts, repair open B+ (Pink/Violet wire) circuit between junction block and socket. If voltage is 10 volts or greater, go to next step.
3. Ensure a underhood light bulb is installed. Disconnect hood ajar switch. Using scan tool in ohmmeter mode, measure resistance at terminal No. 2 (Black wire) at hood ajar switch harness connector. If resistance is 5 ohms or greater, repair open ground circuit. If resistance is less than 5 ohms, go to next step.
4. Using scan tool in voltmeter mode, measure voltage at terminal No. 3 (Pink/Black wire) at hood ajar switch harness connector. If voltage is less than 10 volts, repair open hood light driver (Pink/Black wire) circuit between hood ajar switch and socket. If voltage is 10 volts or greater, replace hood ajar switch.

EXTERIOR LIGHT TEST 7A - UNDERHOOD LIGHTS 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.

Ensure hood is closed and aligned correctly. Using scan tool, read hood ajar switch sense. If scan tool displays HOOD AJAR: OPEN, repair underhood light driver circuit (Pink/Black wire) between hood ajar switch and underhood lights for short to ground. If scan tool does not display HOOD AJAR: OPEN, see VTSS TEST 8A .

INFORMATION CENTER TEST 1A - IDENTIFYING INFORMATION CENTER 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.

Determine customer's complaint and perform corresponding procedure/test indicated in INFORMATION CENTER DIAGNOSTIC TEST DIRECTORY table. If all warning lights fail to illuminate when ignition switch is turned to START position, perform INFORMATION CENTER TEST 1B .

INFORMATION CENTER DIAGNOSTIC TEST DIRECTORY

INFORMATION CENTER TEST 1B - ALL WARNING LIGHTS OUT

Note. Perform INFORMATION CENTER 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.

1. Turn ignition off. Disconnect information center connector. Using external voltmeter, measure voltage at terminal No. 10 (Brown/Pink wire) on information center connector. If voltage is 10 volts or less, repair open Brown/Pink wire. If voltage is more than 10 volts, go to next step.
2. Using external voltmeter, measure voltage at terminal No. 12 (Pink wire) on information center connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
3. Remove ignition key. Turn off all lights and accessories. Close all doors. Using external ohmmeter, measure resistance at terminal No. 3 (Black wire) on information center connector. If resistance is 5 ohms or greater, repair open Black wire. If resistance is less than 5 ohms, go to next step.
4. Inspect information center circuit board. If circuit board appears defective, repair or replace as needed. If circuit board does not appear defective, perform «INFORMATION CENTER TEST 1A»(ref-123787-S05175551512001101500000) .

INFORMATION CENTER TEST 2A - LOW OIL PRESSURE WARNING LIGHT MALFUNCTION

Note. Perform INFORMATION CENTER 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.

1. Turn ignition off. Inspect engine oil level. Adjust as needed. Turn ignition on. If oil warning light does not illuminate, go to «INFORMATION CENTER TEST 2B»(ref-123787-S07459086712001101500000). If oil warning light illuminates, go to next step.
2. Turn ignition off. Remove Oil Pressure Switch (OPS). See OPS LOCATION table. OPS LOCATION Engine Location 2.4L Side Of Block, Near Transaxle 3.0L Next To Oil Filter 3.3L & 3.8L Below A/C Compressor
3. Connect oil pressure gauge. Start engine and run until normal operating temperature is reached. If oil pressure at idle is less than 4 psi, service engine mechanical condition for cause of low oil pressure. If oil pressure at idle is more than 4 psi, go to next step.
4. Turn ignition off. If oil warning light is not illuminated, replace OPS. If oil warning light is illuminated, access Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Go to next step.
5. Disconnect BCM connector "B". If oil warning light is not illuminated, repair Gray wire between OPS and BCM connector "B" for short to ground. If warning light is illuminated, go to next step.
6. Disconnect BCM connector "A". If oil warning light is not illuminated, replace BCM. If warning light is illuminated, turn ignition off. Disconnect information center connector. Remove ignition key. Turn off all lights and accessories. Close all doors. Go to next step.
7. Using external ohmmeter, measure resistance at terminal No. 8 (Gray wire) on information center connector. If resistance is 5 ohms or greater, replace information center. If resistance is less than 5 ohms, repair Gray wire between information center and BCM connector "A".

INFORMATION CENTER TEST 2B - LOW OIL PRESSURE WARNING LIGHT MALFUNCTION

Note. Perform INFORMATION CENTER 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.

1. Disconnect Oil Pressure Switch (OPS). See OPS LOCATION table. OPS LOCATION Engine Location 2.4L Side Of Block, Near Transaxle 3.0L Next To Oil Filter 3.3L & 3.8L Below A/C Compressor
2. Connect jumper wire between ground and terminal No. 1 (Gray wire) on OPS connector. If oil warning light illuminates, replace OPS. If oil warning light does not illuminate, go to next step.
3. Access Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove BCM connector "B" cover. Do not disconnect connector. Connect jumper wire between ground and terminal No. 52 (Gray wire). If oil warning light illuminates, repair open Gray wire. If oil warning light does not illuminate, go to next step.
4. Disconnect BCM connector "A". Connect jumper wire between ground and terminal No. 33 (Gray wire). If oil warning light illuminates, replace BCM. If oil warning light does not illuminate, go to next step.
5. Access information center connector. Do not disconnect connector. Connect jumper wire between ground and terminal No. 8 (Gray wire). If oil warning light illuminates, repair open Gray wire. If oil warning light does not illuminate, go to next step.
6. Disconnect information center connector. Remove and inspect oil warning light bulb from information center. Replace as needed. If light bulb is okay, replace information center.

INFORMATION CENTER TEST 3A - RED BRAKE WARNING LIGHT MALFUNCTION

Note. Perform INFORMATION CENTER 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.

1. If vehicle is equipped with ABS, see BRAKE SYSTEM - ANTI-LOCK article in the BRAKES section. On non-ABS vehicles, ensure parking brake pedal is fully released. If parking brake will not release, repair as needed. Turn ignition on. If brake warning light is illuminated, go to «INFORMATION CENTER TEST 3B»(ref-123787-S38552084652001101500000) . If brake warning light is not illuminated, go to next step.
2. Crank engine and observe brake warning light. If brake warning light does not illuminate, go to «INFORMATION CENTER TEST 3C»(ref-123787-S22995248182001101500000) . If brake warning light illuminates, go to next step.
3. Apply parking brake. If brake warning light does not illuminate, go to «INFORMATION CENTER TEST 3D»(ref-123787-S42569523552001101500000) . If brake warning light illuminates, go to next step.
4. Release parking brake. Proceed to «INFORMATION CENTER TEST 3E»(ref-123787-S16174272482001101500000) to diagnose warning light not illuminating when brake fluid reservoir is low or empty.

INFORMATION CENTER TEST 3B - RED BRAKE WARNING LIGHT MALFUNCTION

Note. Perform INFORMATION CENTER 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.

1. Ensure brake fluid reservoir is full. Disconnect brake fluid level switch connector and observe brake warning light. If brake warning light is not illuminated, replace brake fluid level switch. If brake warning light is illuminated, go to next step.
2. Disconnect parking brake switch connector located on parking brake pedal bracket. If brake warning light is not illuminated, replace parking brake switch. If brake warning light is illuminated, go to next step.
3. Turn ignition off. Disconnect information center connector. Remove ignition key. Turn off all lights and accessories. Close all doors. Using external ohmmeter, measure resistance at terminal No. 9 (Gray/Black wire) on information center connector. If resistance is 5 ohms or greater, replace information center. If resistance is less than 5 ohms, go to next step.
4. Disconnect ignition switch connector. (Scheme 17)in CHIME TEST 4B. Using external ohmmeter, measure resistance at terminal No. 9 (Gray/Black wire) on information center connector. If resistance is 5 ohms or greater, replace ignition switch. If resistance is less than 5 ohms, repair Gray/Black wire for short to ground.

INFORMATION CENTER TEST 3C - RED BRAKE WARNING LIGHT MALFUNCTION

Note. Perform INFORMATION CENTER 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.

1. Turn ignition off. Disconnect ignition switch connector. (Scheme 17)in CHIME TEST 4B. Using external ohmmeter, measure resistance at terminal No. 1 (Black wire) on ignition switch connector. If resistance is 5 ohms or greater, repair open Black wire. If resistance is less than 5 ohms, go to next step.
2. Reconnect ignition switch connector. Turn ignition on. Backprobing ignition switch connector, connect jumper wire between ground and terminal No. 2 (Gray/Black wire). If brake warning light illuminates, replace ignition switch. If brake warning light does not illuminate, go to next step.
3. With jumper wire connected, disconnect information center connector. Remove ignition key. Turn off all lights and accessories. Close all doors. Go to next step.
4. Using external ohmmeter, measure resistance at terminal No. 9 (Gray/Black wire) on information center connector. If resistance is 5 ohms or greater, repair open Gray/Black wire. If resistance is less than 5 ohms, remove and inspect red brake warning light bulb. Replace as needed. If bulb is okay, replace information center.

INFORMATION CENTER TEST 3D - RED BRAKE WARNING LIGHT MALFUNCTION

Note. Perform INFORMATION CENTER 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.

Disconnect parking brake switch connector located on parking brake pedal bracket. Connect jumper wire between chassis ground and switch connector. If brake warning light illuminates, replace parking brake switch. If brake warning light does not illuminate, repair open Gray/Black wire between parking brake switch and junction block.

INFORMATION CENTER TEST 3E - RED BRAKE WARNING LIGHT MALFUNCTION

Note. Perform INFORMATION CENTER 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.

1. Turn ignition off. Disconnect brake fluid level switch connector. Connect jumper wire between switch connector terminals. Turn ignition on. If brake warning light illuminates, replace brake fluid level switch. If brake warning light does not illuminate, go to next step.
2. Disconnect jumper wire. Connect jumper wire between chassis ground and brake fluid level switch connector, terminal No. 2 (Gray/Black wire). If brake warning light does not illuminate, repair open Gray/Black wire. If brake warning light illuminates, repair open brake fluid level switch ground circuit (Black wire).

INFORMATION CENTER TEST 4A - ENGINE TEMPERATURE WARNING LIGHT DRIVER CIRCUIT

Note. Perform INFORMATION CENTER 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.

1. Start engine. If engine temperature light is illuminated, go to «INFORMATION CENTER TEST 4B»(ref-123787-S31453798512001101500000). If engine temperature light is not illuminated, go to next step.
2. Turn engine off. Using scan tool, actuate engine temperature light. If engine temperature light illuminates, warning light system is currently functioning correctly. If engine temperature light does not illuminate, go to next step.
3. Disconnect information center connector. Using external voltmeter, measure voltage at terminal No. 10 (Brown/Pink wire). If voltage is 10 volts or less, repair open Brown/Pink wire between junction block and information center. If voltage is more than 10 volts, go to next step.
4. Remove and inspect engine temperature warning light bulb. Replace as needed. Reinstall bulb and reconnect information center connector. Backprobe information center connector with jumper wire. Connect jumper between ground and terminal No. 6 (Violet wire). If engine temperature warning light does not illuminate, replace information center. If engine temperature warning light illuminates, go to next step.
5. Gain access to Body Control Module (BCM) connector "A". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove cover from connector "A". Connect jumper wire between ground and terminal No. 6 (Violet wire). If engine temperature warning light does not illuminate, repair open Violet wire. If engine temperature warning light illuminates, replace BCM.

INFORMATION CENTER TEST 4B - ENGINE TEMPERATURE WARNING LIGHT DRIVER CIRCUIT

Note. Perform INFORMATION CENTER 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.

1. Using scan tool, select BODY SYSTEMS. Read CHIME MONITOR. If engine temperature light is illuminated, see INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If engine temperature light is not illuminated, go to next step.
2. Turn engine off. Turn ignition to ON position. Disconnect Body Control Module (BCM) connector "A". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If engine temperature light is not illuminated, replace BCM. If engine temperature light is illuminated, go to next step.
3. Disconnect information center connector. Remove ignition key. Turn off all lights and accessories. Close all doors. Go to next step.
4. Using external ohmmeter, measure resistance on information center connector, terminal No. 6 (Violet wire). If resistance is 10 ohms or greater, replace information center. If resistance is less than 10 ohms, repair Violet wire for short to ground.

INFORMATION CENTER TEST 5A - TURN SIGNAL INDICATOR LIGHTS

Note. Perform INFORMATION CENTER 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.

1. Turn ignition on. Turn on each individual turn signal. If turn signal(s) is not working, see EXTERIOR LIGHTS in the SYSTEM WIRING DIAGRAMS article in the WIRING DIAGRAMS section. If turn signals are operating correctly, go to next step.
2. Using scan tool, read turn signal status. Turn on right turn signal. If scan tool does not display TURN SIGNAL status changing from OPEN to CLOSED, go to «INFORMATION CENTER TEST 5B»(ref-123787-S26425501472001101500000) . If scan tool displays TURN SIGNAL status changing from OPEN to CLOSED, go to next step.
3. Turn on left turn signal. If scan tool does not display TURN SIGNAL status changing from OPEN to CLOSED, go to «INFORMATION CENTER TEST 5B»(ref-123787-S26425501472001101500000) . If scan tool displays TURN SIGNAL status changing from OPEN to CLOSED, go to next step.
4. Turn ignition off. Disconnect information center connector. Remove ignition key. Turn off all lights and accessories. Close all doors. Go to next step.
5. Using external ohmmeter, measure resistance at terminal No. 3 (Black wire) on information center connector. If resistance is 10 ohms or greater, repair open Black wire. If resistance is less than 10 ohms, go to next step.
6. Remove and inspect both information center turn signal bulbs. Replace as needed. Turn ignition on. Turn on right turn signal. Connect test light to terminal No. 4 (Brown/Red wire) on information center connector. If test light does not flash, repair open Brown/Red wire. If test light flashes, go to next step.
7. Turn on left turn signal. Connect test light to information center terminal No. 2 (Dark Green/Red wire). If test light does not flash, repair open Dark Green/Red wire. If test light flashes, replace information center.

INFORMATION CENTER TEST 5B - TURN SIGNAL INDICATOR LIGHT

Note. Perform INFORMATION CENTER 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.

1. Turn ignition off. Disconnect Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Access junction block internal 23-pin connector. Turn ignition on. Turn on right turn signal. Using test light, probe internal connector, terminal No. 21. If test light does not flash, repair or replace junction block. If test light flashes, go to next step.
2. Turn on left turn signal. Using test light, probe internal connector, terminal No. 20. If test light does not flash, repair or replace junction block. If test light flashes, replace BCM.

INFORMATION CENTER TEST 6A - HIGH BEAM INDICATOR LIGHT

Note. Perform INFORMATION CENTER 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.

1. Turn ignition on. Turn high beam headlights on. Ensure turn signals are off. If high beam headlights do not illuminate, go to «EXTERIOR LIGHT TEST 1A»(ref-123787-S15649231372001101500000) . If high beam headlights illuminate, go to next step.
2. Disconnect information center. Remove and inspect high beam indicator light bulb. Replace as needed. Remove ignition key. Turn off all lights and accessories. Close all doors. Go to next step.
3. Using external ohmmeter, measure resistance between ground and terminal No. 3 (Black wire) on information center connector. If resistance is 10 ohms or greater, repair open Black wire. If resistance is less than 10 ohms, go to next step.
4. Using external voltmeter, measure voltage between ground and terminal No. 1 (Red/Orange wire) on information center connector. If voltage is 10 volts or less, repair open Red/Orange wire. If voltage is more than 10 volts, replace information center.

INFORMATION CENTER TEST 7A - HIGH BEAM INDICATOR LIGHT

Note. Perform INFORMATION CENTER 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.

1. Using scan tool, check for engine performance Diagnostic Trouble Codes (DTCS). See TESTS W/CODES article in the ENGINE PERFORMANCE section. Repair as needed. If no DTCs are present, go to next step.
2. If service engine soon light stays constantly illuminated, go to step 6). If light is not illuminated, turn ignition off. Disconnect Powertrain Control Module (PCM) Black harness connector. PCM is located beside power distribution center. Turn ignition on. Go to next step.
3. Connect jumper wire between ground and terminal No. 22 (Black/Pink wire) on Black PCM connector. If service engine light illuminates, replace PCM. If service engine light does not illuminate, go to next step.
4. Without disconnecting jumper wire, disconnect information center connector. Inspect service engine soon light bulb and socket. Repair or replace as needed. If bulb and socket are okay, go to next step.
5. Using external ohmmeter, measure resistance between ground and terminal No. 7 (Black/Pink wire) on information center connector. If resistance is less than 5 ohms, replace information center circuit board. If resistance is 5 ohms or greater, repair open service engine soon indicator light driver circuit.
6. Turn ignition off. Disconnect Powertrain Control Module (PCM) Black harness connector. PCM is located beside power distribution center. Turn ignition on. Go to next step.
7. If service engine soon light is not illuminated, replace PCM. If service engine soon light is illuminated, disconnect information center connector. Using external ohmmeter, measure resistance between ground and terminal No. 7 (Black/Pink wire) on information center connector. If resistance is less than 100 ohms, repair service engine soon indicator light driver circuit for short to ground. If resistance is 5 ohms or greater, replace information center circuit board.

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.

1. Turn ignition on. Using scan tool, select ELECTRO/MECHANICAL cluster. If scan tool displays NO RESPONSE, go to «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000). If scan tool display is other than described, go to next step.
2. Using scan tool, select READ DTCs. If scan tool displays ROM TEST FAILURE, recalibrate gauges using scan tool. If scan tool displays RAM TEST FAILURE, replace instrument cluster circuit board and recalibrate gauges. If scan tool display is other than described, go to next step.
3. If scan tool displays BODY COMPUTER ODOMETER FAILURE, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If scan tool displays NO MESSAGES FROM BCM, NO MESSAGES FROM PCM or NO MESSAGES FROM TCM, go to «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000). Go to next step.
4. Using scan tool, actuate gauges. If an individual gauge fails to operate, go to «INSTRUMENT CLUSTER TEST 1B»(ref-123787-S34077304082001101500000). Identify problem(s) listed in INSTRUMENT CLUSTER DIAGNOSTIC TEST DIRECTORY table and perform indicated test(s).

INSTRUMENT CLUSTER DIAGNOSTIC TEST DIRECTORY

INSTRUMENT CLUSTER TEST 1B - INOPERATIVE GAUGE

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.

Disconnect Mechanical Instrument Cluster (MIC) and ensure connectors are clean and not damaged. Remove inoperative gauge. Inspect printed circuit board and gauge connections. Repair printed circuit board as necessary. If printed circuit board is okay, replace inoperative gauge. Recalibrate gauge using scan tool.

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.

1. Turn ignition on. Using scan tool, select BODY, then BODY COMPUTER, then INPUT/OUTPUT. Read ignition unlock status. If scan tool displays IGNITION UNLOCK: CLOSED, go to next step. If scan tool does not display IGNITION UNLOCK: CLOSED, go to «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000).
2. Using scan tool, select BODY, then ELECTOR/MECH CLUSTER (MIC). Select ACTUATOR, then actuate gauges. If gauges move from lower to upper limits, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If gauges do not operate, replace instrument cluster circuit board. Using scan tool, recalibrate gauges.

INSTRUMENT CLUSTER TEST 3A - FUEL GAUGE/FUEL LEVEL SENDING CIRCUIT

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.

1. Ensure there is fuel in fuel tank before proceeding with this test. If problem is only with fuel warning light, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If problem is with fuel gauge accuracy, go to «INSTRUMENT CLUSTER TEST 3E»(ref-123787-S38296880372001101500000). If problem is other than those listed, go to next step.
2. Turn ignition on. Using scan tool, read BCM DTCs. If scan tool displays FUEL LEVEL SENSOR CIRCUIT ERROR code, go to step 5). If scan tool does not display FUEL LEVEL SENSOR CIRCUIT ERROR code, go to next step.
3. Using scan tool, read ignition voltage. If voltage is 11 volts or less, go to «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000). If voltage is more than 11 volts, go to next step.
4. Using scan tool, read fuel sensor voltage. If scan tool displays voltage of 1-10 volts, replace fuel level sensor. If scan tool does not display voltage of 1-10 volts, replace BCM.
5. Turn ignition off. Disconnect fuel tank sending unit 4-pin connector located next to fuel tank or fuel gauge pressure sensor connector on CNG vehicles. Turn ignition on. Using scan tool in voltmeter mode, measure voltage at Dark Blue wire on connector. If voltage is.5 volt or less, go to next step. If voltage is more than.5 volt, go to step 7).
6. Turn ignition off. Using scan tool in ohmmeter mode, measure resistance at Dark Blue wire on connector. If resistance is less than 5 ohms, repair Dark Blue wire for short to ground. If resistance is 5 ohms or greater, repair open Dark Blue wire.
7. Using scan tool in ohmmeter mode, measure resistance at Black wire on connector. If resistance is less than 5 ohms, replace fuel level sending unit or fuel gauge pressure sensor. If resistance is 5 ohms or greater, repair open Black wire.

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.

1. If problem is only with odometer, go to step 6). If problem is with speedometer and odometer, go to next step.
2. Turn ignition on. Using scan tool, actuate gauges. If speedometer goes to more than 70 MPH in steps (0, 20, 55, 75) and then to zero, go to next step. If speedometer does not go to more than 70 MPH in steps, recalibrate gauges using scan tool. If problem still exists, replace gauge pack and calibrate.
3. Using scan tool, read Powertrain Control Module (PCM) status. If scan tool displays, ACTIVE ON THE BUS, go to next step. If scan tool does not display ACTIVE ON THE BUS, go to «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000).
4. Using scan tool, read PCM DTCs. If a NO VEHICLE SPEED SENSOR SIGNAL message is not present, go to next step. If a NO VEHICLE SPEED SENSOR SIGNAL DTC is present, see TESTS W/CODES article in the ENGINE PERFORMANCE section.
5. Raise and properly support vehicle. Start engine. Place transaxle in Drive and slowly allow drive wheels to turn. Using scan tool, observe vehicle speed under MONITORS. If scan tool speed display matches speedometer speed, check pinion factor using scan tool. If scan tool speed display does not match speedometer, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.
6. If odometer fails to illuminate correctly when ignition to turned on, go to «INSTRUMENT CLUSTER TEST 4A»(ref-123787-S30540302362001101500000). If odometer illuminates correctly when ignition to turned on, but does not display numbers correctly, recalibrate speedometer using scan tool. Go to next step.
7. If odometer does display numbers correctly, but mileage figure changes with ignition switch cycling, inspect IOD fuse connection. If IOD fuse is okay, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.

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.

1. Turn ignition on. Using scan tool, actuate gauges. If tachometer gradually steps up to 6000 RPM and then returns to zero, go to next step. If tachometer does not go to 6000 RPM, recalibrate gauges using scan tool. If tachometer still does not function correctly, replace gauge pack and recalibrate.
2. Using scan tool, read Powertrain Control Module (PCM) status. If scan tool displays ACTIVE ON THE BUS, go to next step. If scan tool does not display ACTIVE ON THE BUS, go to «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000) .
3. Start and idle engine. Using scan tool, select MIC, then MONITORS, then ENGINE INFOR. Read engine RPM. If scan tool RPM display matches tachometer RPM, tachometer is currently operating properly. If scan tool RPM display does not match tachometer RPM, replace Powertrain Control Module (PCM). PCM is located next to power distribution center.

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.

1. Ensure cooling system is operating properly. If cooling system is operating properly, go to next step. If cooling system is not operating properly, repair as needed.
2. Turn ignition on. Using scan tool, actuate gauges. If temperature gauge gradually steps up from cold to hot, then back to cold, go to next step. If temperature gauge does not move from cold to hot, replace temperature gauge. Recalibrate gauges using scan tool.
3. Using scan tool, read Powertrain Control Module (PCM) status. If scan tool displays ACTIVE ON THE BUS, go to next step. If scan tool does not display ACTIVE ON THE BUS, go to «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000).
4. Using scan tool, read PCM DTCs. If an engine COOLANT TEMPERATURE SENSOR trouble code is not present, go to next step. If an engine COOLANT TEMPERATURE SENSOR trouble code is present, see TESTS W/CODES article in the ENGINE PERFORMANCE section.
5. Start and idle engine. Using scan tool, read engine temperature. If scan tool temperature display matches temperature gauge display, temperature gauge is operating properly. If scan tool display and temperature gauge do not match, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.

INSTRUMENT CLUSTER TEST 3E - MEASURING 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.

1. Using scan tool, actuate gauges. Observe fuel gauge. If fuel gauge pointer sweeps and stops at E, 1/8, 1/4 and Full, go to next step. If fuel gauge does not operate correctly, recalibrate fuel gauge using scan tool.
2. Stop actuation. Inspect fuel tank for bowing on bottom of tank. Replace as needed. If vehicle is CNG powered, go to step 6). If vehicle is gas powered, go to next step.
3. Turn ignition off. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Go to next step.
4. Using scan tool in ohmmeter mode, measure resistance between chassis ground and BCM connector "B", terminal No. 46 (Dark Blue). Determine if ohmmeter reading matches fuel level. See FUEL LEVEL SENDING UNIT RESISTANCE table. If resistance matches fuel gauge reading, replace BCM. If resistance does not match fuel gauge reading, go to next step. FUEL LEVEL SENDING UNIT RESISTANCE Float Position Float Height - In. (mm) 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
5. Remove fuel level sending unit from fuel tank. Inspect tank unit for foreign material. Replace as needed. If tank is okay, replace sending unit.
6. Disconnect fuel gauge pressure sensor. Using external voltmeter, measure voltage between ground and terminal No. 2 (Brown/Pink wire) on fuel gauge pressure sensor connector. If voltage is 10 volts or less, repair open Brown/Pink wire. If voltage is more than 10 volts, go to next step.
7. Using external ohmmeter, measure resistance between ground and terminal No. 1 (Black wire) on fuel gauge pressure sensor connector. If resistance is less than 20 ohms, replace fuel gauge pressure sensor. If resistance is 20 ohms or greater, repair open Black wire.

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.

1. Turn ignition switch to UNLOCK position. Observe instrument cluster. Turn ignition on. Indicator lights should illuminate for 2-3 seconds. Using scan tool, actuate ALL SEGMENTS test.
2. If any segments in odometer or PRNDL fail to illuminate, replace instrument cluster display. If any warning lights fail to illuminate, go to «INSTRUMENT CLUSTER TEST 4B»(ref-123787-S40002040572001101500000) . Identify problem(s) and perform indicated test(s) in WARNING LIGHT SYSTEM DIAGNOSTIC TEST DIRECTORY table.

WARNING LIGHT SYSTEM DIAGNOSTIC TEST DIRECTORY

INSTRUMENT CLUSTER TEST 4B - WARNING LIGHT FAILS TO LIGHT

Note. Perform INSTRUMENT CLUSTER TEST 4A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS .

Remove and inspect inoperative indicator light. Replace as needed. Visually inspect instrument cluster circuit board. Replace as needed. If circuit board is replaced, recalibrate gauges using scan tool.

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.

1. Remove and inspect junction block fuse No. 1. (Scheme 19)in EXTERIOR LIGHT TEST 4A. If fuse is open, go to «INSTRUMENT CLUSTER TEST 5B»(ref-123787-S30453237492001101500000). If fuse is okay, go to next step.
2. Turn parking lights on. If parking lights illuminate, go to next step. If parking lights do not illuminate, go to «EXTERIOR LIGHT TEST 1A»(ref-123787-S15649231372001101500000).
3. Using scan tool, read parking lamp switch status. If scan tool displays PARK LAMP ON, go to next step. If scan tool does not display PARK LAMP ON, go to «INSTRUMENT CLUSTER TEST 5C»(ref-123787-S42906072782001101500000).
4. Using scan tool, read panel lamp sensor voltage. If scan tool displays zero volts, go to next step. If scan tool displays voltage, go to step 6).
5. 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 5D»(ref-123787-S33653331372001101500000).
6. Ensure parking lights are on and dimmer switch is at midway position. Locate junction block 36-pin connectors "A" and "C". (Scheme 16)in CHIME TEST 2A. Go to next step.
7. Using scan tool in voltmeter mode, measure voltage on each panel lamp driver terminal (Orange wire). (Scheme 18)in EXTERIOR LIGHT TEST 2A. See PANEL LAMP DRIVER TERMINAL IDENTIFICATION table. While backprobing each terminal, rotate dimmer switch from low to high. If voltage increases from zero volts to about 12 volts at all terminals, go to next step. If voltage does not increase at any terminal, replace junction block. PANEL LAMP DRIVER TERMINAL IDENTIFICATION Connector Terminal No. Connector "A" 8, 9 & 15 Connector "C" 8, 9, 15, 16, 19, 20 & 24
8. Disconnect instrument cluster 13-pin connector and ensure connector is clean and not damaged. Using scan tool in voltmeter mode, measure voltage at terminal No. 6 (Orange wire) on instrument cluster Blue 13-pin connector. If voltage is more than 5 volts, go to next step. If voltage is 5 volts or less, repair open in Orange wire between instrument cluster and junction block.
9. Using scan tool in ohmmeter mode, measure resistance at terminal No. 7 (Black/Light Green wire) on instrument cluster Blue 13-pin connector. If resistance is 20 ohms or greater, repair open Black/Light Green wire. If resistance is less than 5 ohms, go to next step.
10. If problem is only with instrument cluster illumination, replace instrument cluster circuit board. Recalibrate gauges using scan tool. If problem is with a specific light, inspect bulb. If bulb is okay, repair open in suspect indicator light driver and/or ground circuits.

INSTRUMENT CLUSTER TEST 5B - PANEL LIGHTS DRIVER 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.

Replace fuse No. 1 in junction block. Turn parking light on. Rotate dimmer switch to full intensity. Inspect fuse No. 1. If fuse is okay, system is currently functioning correctly. If fuse No. 1 is blown, repair panel lights driver circuit for short to ground.

INSTRUMENT CLUSTER TEST 5C - PANEL LIGHTS DRIVER 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.

Ensure parking lights are on. Using scan tool in voltmeter mode, measure voltage on junction block fuse No. 1. If voltage is 10 volts or less, replace junction block. If voltage is more than 10 volts, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.

INSTRUMENT CLUSTER TEST 5D - 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.

1. Using scan tool, read panel lamp sensor voltage. Rotate dimmer switch. If voltage remains high, go to step 6). Ensure parking lights are still on.
2. Access Body Control Module (BCM) connector "A". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect connector. Using scan tool in voltmeter mode, backprobe connector "A".
3. Measure voltage on terminal No. 8 (Orange/Black wire) while rotating dimmer switch. If voltage varies from zero volts to more than 4 volts, replace BCM. If voltage does not vary from zero volts to more than 4 volts, go to next step.
4. Disconnect headlight switch 13-pin connector. Using scan tool, read panel lamp sensor voltage. If voltage is more than 4 volts, replace headlight switch. If voltage is 4 volts or less, go to next step.
5. Turn parking lights off. Using scan tool in ohmmeter mode, measure resistance at terminal No. 12 (Orange/Black wire) on headlight switch connector. If resistance is 5 ohms or greater, replace BCM. If resistance is less than 5 ohms, repair Orange/Black wire for short to ground.
6. Ensure parking lights are on. Rotate dimmer switch to high position. Access headlight switch connector. Do not disconnect connector. Using scan tool in voltmeter mode, backprobe connector. Go to next step.
7. Measure voltage on terminal No. 6 (Black wire). If voltage is one volt or less, repair open Black wire. If voltage is more than one volt, go to next step.
8. Measure voltage on terminal No. 12 (Orange/Black wire). If voltage is.8 volt or less, repair open Orange/Black wire. If voltage is more than.8 volt, replace BCM.

INSTRUMENT CLUSTER TEST 6A - GAUGES DO NOT 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.

Turn ignition off. Disconnect instrument cluster and ensure connectors are clean and not damaged. Using scan tool in voltmeter mode, measure voltage at terminal No. 2 (Pink wire) on instrument cluster 13-pin connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, replace instrument cluster circuit board. Recalibrate gauges using scan tool.

INSTRUMENT CLUSTER TEST 7A - WASHER FLUID SWITCH SENSE CIRCUIT

Note. Perform INSTRUMENT CLUSTER TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS .

1. Ensure washer fluid reservoir is not empty. Using scan tool, read washer fluid switch status. If scan tool displays CIRCUIT CLOSED, go to next step. If scan tool does not display CIRCUIT CLOSED, go to step 4).
2. Disconnect washer fluid switch on bottom of reservoir. Using scan tool, read washer fluid switch status. If scan tool displays CIRCUIT CLOSED, go to next step. If scan tool does not display CIRCUIT CLOSED, replace washer fluid level switch.
3. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool in ohmmeter mode, measure resistance at terminal No. 58 (Black/Tan wire) on connector. If resistance is less than 5 ohms, repair Black/Tan wire for short to ground. If resistance is 5 ohms or greater, replace BCM.
4. Disconnect washer fluid switch on bottom of reservoir. Connect jumper wire between connector terminals. Using scan tool, read washer fluid switch status. If scan tool displays CIRCUIT CLOSED, replace washer fluid level switch. If scan tool does not display CIRCUIT CLOSED, go to next step.
5. Remove jumper wire. Connect jumper wire between chassis ground and terminal "B" (Black/Tan wire) on washer fluid level switch connector. Using scan tool, read washer fluid switch status. If scan tool displays CIRCUIT CLOSED, repair open Black/Tan wire. If scan tool does not display CIRCUIT CLOSED, go to next step.
6. Access Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect connector.
7. Backprobing connector "B", connect jumper between terminal No. 58 (Black/Tan wire) and ground. Using scan tool read washer fluid switch status. If scan tool displays CIRCUIT CLOSED, repair open Black/Tan wire. If scan tool does not display CIRCUIT CLOSED, replace BCM.

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.

Interior lighting system consists of courtesy lights and illuminated entry and key-in light. Identify problem(s) listed in INTERIOR LIGHT SYSTEM DIAGNOSTIC TEST DIRECTORY table and perform indicated test(s).

INTERIOR LIGHT SYSTEM DIAGNOSTIC TEST DIRECTORY

INTERIOR LIGHT TEST 2A - COURTESY LIGHTS 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.

1. Ensure courtesy light switch on headlight switch is in middle position. Using scan tool, actuate courtesy light relay. If courtesy lights illuminate, go to «INTERIOR LIGHT TEST 2B»(ref-123787-S35604174572001101500000). If courtesy lights do not illuminate, go to next step.
2. Disconnect courtesy light relay. (Scheme 19)in EXTERIOR LIGHT TEST 4A. Using scan tool in voltmeter mode, measure voltage at terminal "A" on courtesy light relay socket. If voltage is 10 volts or less, replace junction block. (Scheme 16)in CHIME TEST 2A. If voltage is more than 10 volts, go to next step.
3. Using scan tool in voltmeter mode, measure voltage at terminal "E" on courtesy light relay socket. If voltage is 10 volts or less, replace junction block. If voltage is more than 10 volts, go to next step.
4. Disconnect voltmeter probe. Connect jumper wire between terminals "A" and "B" on courtesy light relay socket. If courtesy lights illuminate, go to next step. If courtesy lights do not illuminate, replace junction block.
5. Disconnect jumper wire. Install courtesy light relay. Access junction block connector "D". (Scheme 16)in CHIME TEST 2A. Using scan tool in voltmeter mode, backprobe connector "D". Measure voltage on terminal No. 34 (Brown/White wire). (Scheme 18)in EXTERIOR LIGHT TEST 2A. If voltage is 10 volts or less, replace courtesy light relay. If voltage is more than 10 volts, go to next step.
6. Remove headlight switch from dash. Do not disconnect connectors. Using scan tool in voltmeter mode, backprobe terminal No. 9 (Brown/White wire) on switch connector. If voltage is 10 volts or less, repair open Brown/White wire. If voltage is more than 10 volts, go to next step.
7. Backprobe terminal No. 3 (Brown/Light Green wire) on switch connector. If voltage is 10 volts or less, replace headlight switch. If voltage is more than 10 volts, go to next step.
8. Access junction block connector "D". (Scheme 16)in CHIME TEST 2A. Using scan tool in voltmeter mode, backprobe connector "D". Measure voltage on terminal No. 10 (Brown/Light Green wire). (Scheme 18)in EXTERIOR LIGHT TEST 2A. If voltage is 10 volts or less, repair open Brown/Light Green wire. If voltage is more than 10 volts, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.

INTERIOR LIGHT TEST 2B - COURTESY LIGHTS 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.

Stop courtesy light actuation. Open driver's door. Using scan tool, read left front door ajar switch status. If scan tool displays DRDOOR AJAR: CLOSED, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If scan tool does not display DRDOOR AJAR: CLOSED, go to INTERIOR LIGHT TEST 3A.

INTERIOR LIGHT TEST 3A - COURTESY LIGHTS 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.

1. Disconnect courtesy light relay. (Scheme 19)in EXTERIOR LIGHT TEST 4A. If courtesy lights are still illuminated, repair courtesy light relay output circuit (courtesy light relay terminal "B") for short to battery voltage. If courtesy lights are not illuminated, go to next step.
2. Using scan tool in ohmmeter mode, measure resistance at terminal "C" on relay socket. If resistance is 5 ohms or greater, replace courtesy light relay. If resistance is less than 5 ohms, go to next step.
3. Without disconnecting ohmmeter probe, disconnect headlight switch connectors. If resistance is less than 5 ohms, repair Brown/White wire) between relay terminal "C" and headlight switch 13-pin connector for short to ground. If resistance is 5 ohms or greater, go to next step.
4. Using scan tool in ohmmeter mode, measure resistance at terminal No. 3 (Brown/Light Green wire) on headlight switch 13-pin connector. If resistance is 5 ohms or greater, replace headlight switch. If resistance is less than 5 ohms, go to next step.
5. Disconnect Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. With ohmmeter probe still connected, observe resistance. If resistance is less than 5 ohms, repair Brown/Light Green wire for short to ground. If resistance is 5 ohms or greater, replace BCM.

INTERIOR LIGHT TEST 4A - COURTESY LIGHTS 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.

1. Rotate headlight switch to dome light position. Using scan tool, read dome lamp switch. If scan tool displays DOME LAMP SWITCH: CLOSED, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If scan tool does not display DOME LAMP SWITCH: CLOSED, go to next step.
2. Gain access to back of headlight switch. Do not disconnect connectors. Connect jumper wire between terminal No. 4 (Black/Light Blue wire) on 13-pin connector. If courtesy lights illuminate, replace headlight switch. If courtesy lights do not illuminate, go to next step.
3. Access junction block connector "A". (Scheme 16)in CHIME TEST 2A. Connect jumper wire between ground and terminal No. 2 (Black/Light Blue wire) on connector "A". If courtesy lights illuminate, repair open Black/Light Blue wire. If courtesy lights do not illuminate, 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.

1. Using scan tool, read diagnostic trouble codes. If any door lock code(s) are present, go to «POWER DOOR LOCK TEST 1B»(ref-123787-S14223496862001101500000) . If no codes are present, lower both front windows. Remove key from ignition. Close all doors. Lock and unlock doors from all door switches. 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-123787-S22002947022001101500000) table.
2. Insert key in ignition switch. Open left front door. Using door lock switch, lock doors. Doors should not lock. If doors did not lock, go to next step. If doors lock, go to «POWER DOOR LOCK TEST 26A»(ref-123787-S05196918372001101500000) .
3. If vehicle is not equipped with Remote Keyless Entry (RKE) system, go to next step. If vehicle is equipped with RKE, operate door locks using transmitter. If door lock system does not operate correctly, go to KEYLESS ENTRY SYSTEM - REMOTE article in the ACCESSORIES/SAFETY EQUIPMENT section. If no problems are found and system still does not operate correctly, go to «POWER DOOR LOCK TEST 27A»(ref-123787-S17834866682001101500000) .
4. 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 28A»(ref-123787-S42646114182001101500000) . If doors lock, system is currently functioning correctly.

POWER DOOR LOCK SYSTEM DIAGNOSTIC TEST DIRECTORY

POWER DOOR LOCK TEST 1B - SCAN TOOL MESSAGE DISPLAY

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.

If scan tool displays fault messages in TEST 1A, record messages displayed and perform appropriate test(s). See SCAN TOOL POWER DOOR LOCK FAULT MESSAGE DIRECTORY table.

SCAN TOOL POWER DOOR LOCK FAULT MESSAGE DIRECTORY

POWER DOOR LOCK TEST 2A - RIGHT FRONT DOOR MUX CIRCUIT SHORT TO GROUND

Note. Perform POWER DOOR LOCK TEST 1B before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Clear trouble codes as needed. See «DIAGNOSTIC PROCEDURE»(ref-123787-S26783275482001101500000). Turn ignition on. Wait 15 seconds. Using scan tool, read body control computer trouble codes (fault messages). If scan tool displays RT FRONT DOOR MUX CKT SHORT TO GND, go to next step. If scan tool does not display RT FRONT DOOR MUX CKT SHORT TO GND, system is currently operating correctly. Problem may be intermittent.
2. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool in ohmmeter mode, measure resistance at terminal No. 55 (White/Light Green wire) on connector "B". If resistance is 100 ohms or greater, replace BCM. If resistance is less than 100 ohms, repair White/Light Green wire for short to ground.

POWER DOOR LOCK TEST 3A - LEFT FRONT DOOR MUX CIRCUIT SHORT TO GROUND

Note. Perform POWER DOOR LOCK TEST 1B before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Clear trouble codes as needed. See «DIAGNOSTIC PROCEDURE»(ref-123787-S26783275482001101500000). Turn ignition on. Wait 15 seconds. Using scan tool, read body control computer trouble codes (fault messages). If scan tool displays LT FRONT DOOR MUX CKT SHORT TO GND, go to next step. If scan tool does not display LT FRONT DOOR MUX CKT SHORT TO GND, system is currently operating correctly. Problem may be intermittent.
2. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool in ohmmeter mode, measure resistance at terminal No. 45 (White/Dark Green wire) on connector "B". If resistance is 100 ohms or greater, replace BCM. If resistance is less than 100 ohms, repair White/Dark Green wire for short to ground.

POWER DOOR LOCK TEST 4A - LIFTGATE SWITCH MUX CIRCUIT SHORT TO GROUND

Note. Perform POWER DOOR LOCK TEST 1B before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Clear trouble codes as needed. See «DIAGNOSTIC PROCEDURE»(ref-123787-S26783275482001101500000). Turn ignition on. Wait 15 seconds. Using scan tool, read body control computer trouble codes (fault messages). If scan tool displays LIFTGATE DOOR MUX CKT SHORT TO GND, go to next step. If scan tool does not display LIFTGATE DOOR MUX CKT SHORT TO GND, system is currently operating correctly. Problem may be intermittent.
2. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool in ohmmeter mode, measure resistance at terminal No. 44 (White/Red wire) on connector "B". If resistance is 100 ohms or greater, replace BCM. If resistance is less than 100 ohms, repair White/Red wire for short to ground.

POWER DOOR LOCK TEST 5A - LEFT DOOR KEY CYLINDER DISARM SWITCH FAILURE

Note. Perform POWER DOOR LOCK TEST 1B before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Clear trouble codes as needed. See «DIAGNOSTIC PROCEDURE»(ref-123787-S26783275482001101500000) . Using scan tool, read driver's door zone switch voltage. If LF DOOR ZONE SWITCH voltage is about 2 volts, inspect driver's door key lock. Replace key lock as needed. If LF DOOR ZONE SWITCH voltage is not about 2 volts, go to next step.
2. Turn driver's door key cylinder switch to unlock position and observe voltage on scan tool. Do not hold key in unlock position for more than 7 seconds or code will set. If LF DOOR ZONE SWITCH voltage is about 2 volts, go to next step. If LF DOOR ZONE SWITCH voltage is not about 2 volts, replace driver's door key cylinder switch.
3. Operate driver's door key lock cylinder several times from unlock to lock position. Release key lock cylinder. With key lock cylinder in neutral position, observe scan tool voltage. If LF DOOR ZONE SWITCH voltage is about 5 volts, system is currently functioning correctly. If LF DOOR ZONE SWITCH voltage is not about 5 volts, replace driver's door key cylinder switch.

POWER DOOR LOCK TEST 6A - RIGHT DOOR KEY CYLINDER DISARM SWITCH FAILURE

Note. Perform POWER DOOR LOCK TEST 1B before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Clear trouble codes as needed. See «DIAGNOSTIC PROCEDURE»(ref-123787-S26783275482001101500000) . Using scan tool, read passenger door zone switch voltage. If RF DOOR ZONE SWITCH voltage is about 2 volts, inspect passenger's door key lock. Replace key lock as needed. If RF DOOR ZONE SWITCH voltage is not about 2 volts, go to next step.
2. Turn passenger's door key cylinder switch to unlock position and observe voltage on scan tool. Do not hold key in unlock position for more than 7 seconds or code will set. If RF DOOR ZONE SWITCH voltage is about 2 volts, go to next step. If RF DOOR ZONE SWITCH voltage is not about 2 volts, replace passenger's door key cylinder switch.
3. Operate passenger's door key lock cylinder several times from unlock to lock position. Release key lock cylinder. With key lock cylinder in neutral position, observe scan tool voltage. If RF DOOR ZONE SWITCH voltage is about 5 volts, system is currently functioning correctly. If RF DOOR ZONE SWITCH voltage is not about 5 volts, replace passenger's door key cylinder switch.

POWER DOOR LOCK TEST 7A - LIFTGATE KEY CYLINDER DISARM SWITCH FAILURE

Note. Perform POWER DOOR LOCK TEST 1B before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Clear trouble codes as needed. See «DIAGNOSTIC PROCEDURE»(ref-123787-S26783275482001101500000) . Using scan tool, read liftgate zone switch voltage. If LIFTGATE ZONE SWITCH voltage is about 2 volts, inspect liftgate key lock. Replace key lock as needed. If LIFTGATE ZONE SWITCH voltage is not about 2 volts, go to next step.
2. Turn liftgate key cylinder switch to unlock position and observe voltage on scan tool. Do not hold key in unlock position for more than 7 seconds or code will set. If LIFTGATE ZONE SWITCH voltage is about 2 volts, go to next step. If LIFTGATE ZONE SWITCH voltage is not about 2 volts, replace liftgate key cylinder switch.
3. Operate liftgate key lock cylinder several times from unlock to lock position. Release key lock cylinder. With key lock cylinder in neutral position, observe scan tool voltage. If LIFTGATE ZONE SWITCH voltage is about 5 volts, system is currently functioning correctly. If LIFTGATE ZONE SWITCH voltage is not about 5 volts, replace liftgate key cylinder switch.

POWER DOOR LOCK TEST 8A - LEFT DOOR LOCK SWITCH FAILURE

Note. Perform POWER DOOR LOCK TEST 1B before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Clear trouble codes as needed. See «DIAGNOSTIC PROCEDURE»(ref-123787-S26783275482001101500000) . Using scan tool, read driver's door zone switch voltage. If LF DOOR ZONE SWITCH voltage is about 3 volts, replace driver's door lock switch. If LF DOOR ZONE SWITCH voltage is not about 3 volts, go to next step.
2. Operate driver's door lock switch to lock position and observe voltage on scan tool. Do not hold switch in lock position for more than 7 seconds or code will set. If LF DOOR ZONE SWITCH voltage is about 3 volts, go to next step. If LF DOOR ZONE SWITCH voltage is not about 3 volts, replace driver's door lock switch.
3. Operate driver's door lock switch several times from unlock to lock position. Release switch. With switch in neutral position, observe scan tool voltage. If LF DOOR ZONE SWITCH voltage is about 5 volts, system is currently functioning correctly. If LF DOOR ZONE SWITCH voltage is not about 5 volts, replace driver's door lock switch.

POWER DOOR LOCK TEST 9A - RIGHT DOOR LOCK SWITCH FAILURE

Note. Perform POWER DOOR LOCK TEST 1B before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Clear trouble codes as needed. See «DIAGNOSTIC PROCEDURE»(ref-123787-S26783275482001101500000) . Using scan tool, read passenger's door zone switch voltage. If RF DOOR ZONE SWITCH voltage is about 3 volts, replace passenger's door lock switch. If RF DOOR ZONE SWITCH voltage is not about 3 volts, go to next step.
2. Operate passenger's door lock switch to lock position and observe voltage on scan tool. Do not hold switch in lock position for more than 7 seconds or code will set. If RF DOOR ZONE SWITCH voltage is about 3 volts, go to next step. If RF DOOR ZONE SWITCH voltage is not about 3 volts, replace passenger's door lock switch.
3. Operate passenger's door lock switch several times from unlock to lock position. Release switch. With switch in neutral position, observe scan tool voltage. If RF DOOR ZONE SWITCH voltage is about 5 volts, system is currently functioning correctly. If RF DOOR ZONE SWITCH voltage is not about 5 volts, replace passenger's door lock switch.

POWER DOOR LOCK TEST 10A - LEFT DOOR UNLOCK SWITCH FAILURE

Note. Perform POWER DOOR LOCK TEST 1B before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Clear trouble codes as needed. See «DIAGNOSTIC PROCEDURE»(ref-123787-S26783275482001101500000) . Using scan tool, read driver's door zone switch voltage. If LF DOOR ZONE SWITCH voltage is about one volt, replace driver's door lock switch. If LF DOOR ZONE SWITCH voltage is not about one volt, go to next step.
2. Operate driver's door lock switch to unlock position and observe voltage on scan tool. Do not hold switch in unlock position for more than 7 seconds or code will set. If LF DOOR ZONE SWITCH voltage is about one volt, go to next step. If LF DOOR ZONE SWITCH voltage is not about one volt, replace driver's door lock switch.
3. Operate driver's door lock switch several times from lock to unlock position. Release switch. With switch in neutral position, observe scan tool voltage. If LF DOOR ZONE SWITCH voltage is about 5 volts, system is currently functioning correctly. If LF DOOR ZONE SWITCH voltage is not about 5 volts, replace driver's door lock switch.

POWER DOOR LOCK TEST 11A - RIGHT DOOR UNLOCK SWITCH FAILURE

Note. Perform POWER DOOR LOCK TEST 1B before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Clear trouble codes as needed. See «DIAGNOSTIC PROCEDURE»(ref-123787-S26783275482001101500000) . Using scan tool, read passenger's door zone switch voltage. If RF DOOR ZONE SWITCH voltage is about one volt, replace passenger's door lock switch. If RF DOOR ZONE SWITCH voltage is not about one volt, go to next step.
2. Operate passenger's door lock switch to unlock position and observe voltage on scan tool. Do not hold switch in unlock position for more than 7 seconds or code will set. If RF DOOR ZONE SWITCH voltage is about one volt, go to next step. If RF DOOR ZONE SWITCH voltage is not about one volt, replace passenger's door lock switch.
3. Operate passenger's door lock switch several times from lock to unlock position. Release switch. With switch in neutral position, observe scan tool voltage. If RF DOOR ZONE SWITCH voltage is about 5 volts, system is currently functioning correctly. If RF DOOR ZONE SWITCH voltage is not about 5 volts, replace passenger's door lock switch.

POWER DOOR LOCK TEST 12A - LEFT DOOR KEY CYLINDER ARM SWITCH FAILURE

Note. Perform POWER DOOR LOCK TEST 1B before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Clear trouble codes as needed. See «DIAGNOSTIC PROCEDURE»(ref-123787-S26783275482001101500000) . Using scan tool, read driver's door zone switch voltage. If LF DOOR ZONE SWITCH voltage is about 4 volts, inspect driver's door key lock. Replace key lock as needed. If LF DOOR ZONE SWITCH voltage is not about 4 volts, go to next step.
2. Turn driver's door key cylinder switch to lock position and observe voltage on scan tool. Do not hold key in lock position for more than 7 seconds or code will set. If LF DOOR ZONE SWITCH voltage is about 4 volts, go to next step. If LF DOOR ZONE SWITCH voltage is not about 4 volts, replace driver's door key cylinder switch.
3. Operate driver's door key lock cylinder several times from unlock to lock position. Release key lock cylinder. With key lock cylinder in neutral position, observe scan tool voltage. If LF DOOR ZONE SWITCH voltage is about 5 volts, system is currently functioning correctly. If LF DOOR ZONE SWITCH voltage is not about 5 volts, replace driver's door key cylinder switch.

POWER DOOR LOCK TEST 13A - RIGHT DOOR KEY CYLINDER DISARM SWITCH FAILURE

Note. Perform POWER DOOR LOCK TEST 1B before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Clear trouble codes as needed. See «DIAGNOSTIC PROCEDURE»(ref-123787-S26783275482001101500000) . Using scan tool, read passenger's door zone switch voltage. If RF DOOR ZONE SWITCH voltage is about 4 volts, inspect passenger's door key lock. Replace key lock as needed. If RF DOOR ZONE SWITCH voltage is not about 4 volts, go to next step.
2. Turn passenger's door key cylinder switch to lock position and observe voltage on scan tool. Do not hold key in lock position for more than 7 seconds or code will set. If RF DOOR ZONE SWITCH voltage is about 4 volts, go to next step. If RF DOOR ZONE SWITCH voltage is not about 4 volts, replace passenger's door key cylinder switch.
3. Operate passenger's door key lock cylinder several times from unlock to lock position. Release key lock cylinder. With key lock cylinder in neutral position, observe scan tool voltage. If RF DOOR ZONE SWITCH voltage is about 5 volts, system is currently functioning correctly. If RF DOOR ZONE SWITCH voltage is not about 5 volts, replace passenger's door key cylinder switch.

POWER DOOR LOCK TEST 14A - LIFTGATE KEY CYLINDER ARM SWITCH FAILURE

Note. Perform POWER DOOR LOCK TEST 1B before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Clear trouble codes as needed. See «DIAGNOSTIC PROCEDURE»(ref-123787-S26783275482001101500000) . Using scan tool, read liftgate zone switch voltage. If LIFTGATE ZONE SWITCH voltage is about 4 volts, inspect liftgate key lock. Replace key lock as needed. If LIFTGATE ZONE SWITCH voltage is not about 4 volts, go to next step.
2. Turn liftgate key cylinder switch to lock position and observe voltage on scan tool. Do not hold key in unlock position for more than 7 seconds or code will set. If LIFTGATE ZONE SWITCH voltage is about 4 volts, go to next step. If LIFTGATE ZONE SWITCH voltage is not about 4 volts, replace liftgate key cylinder switch.
3. Operate liftgate key lock cylinder several times from unlock to lock position. Release key lock cylinder. With key lock cylinder in neutral position, observe scan tool voltage. If LIFTGATE ZONE SWITCH voltage is about 5 volts, system is currently functioning correctly. If LIFTGATE ZONE SWITCH voltage is not about 5 volts, replace liftgate key cylinder switch.

POWER DOOR LOCK TEST 15A - 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.

1. Using scan tool, actuate door lock relay. If doors lock, go to «POWER DOOR LOCK TEST 15B»(ref-123787-S09759700942001101500000). If doors do not lock, go to next step.
2. Remove and inspect Power Distribution Center (PDC) fuse No. 2. (Scheme 18)in EXTERIOR LIGHT TEST 2A. If fuse is open, go to step 7). Install fuse No. 2. Remove door lock relay from junction block. (Scheme 19)in EXTERIOR LIGHT TEST 4A.
3. Using scan tool in voltmeter mode, measure voltage on outside terminal of fuse No. 2 (component side of circuit). If voltage is 10 volts or less, repair open circuit between PDC and junction block. If voltage is more than 10 volts, go to next step.
4. Connect test light between door lock relay socket terminals "A" and "C". (Scheme 19)in EXTERIOR LIGHT TEST 4A. Using scan tool, actuate door lock relay. If test light flashes, go to next step. If test light does not flash, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.
5. Turn ignition off. Turn off all lights. Using scan tool in ohmmeter mode, measure resistance at terminal "E" on door lock relay socket. If resistance is 5 ohms or greater, repair open ground circuit. If resistance is less than 5 ohms, go to next step.
6. Turn ignition on. Turn on all lights and accessories. Using scan tool in voltmeter mode, measure voltage at terminal "E" on door lock relay socket. If voltage is more than one volt, repair open ground circuit. If voltage is one volt or less, replace door lock relay. NOTE: PDC fuse No. 2 also supplies voltage to power seat circuit.
7. Using scan tool in ohmmeter mode, measure resistance outside terminal of PDC fuse No. 2 (component side of circuit). If resistance is 5 ohms or greater, replace fuse. If resistance is less than 5 ohms, repair component side of circuit for short to ground.

POWER DOOR LOCK TEST 15B - ALL DOORS FAIL TO LOCK & UNLOCK FROM ANY SWITCH

Note. Perform POWER DOOR LOCK TEST 15A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool in voltmeter mode, measure voltage at terminal No. 45 (White/Dark Green wire) on connector "B". If voltage is more than.5 volt, repair White/Dark Green wire for short to battery voltage. If voltage is.5 volt or less, go to next step.
2. Using scan tool in ohmmeter mode, measure resistance at terminal No. 45 (White/Dark Green wire) on connector "B". Hold driver's door lock switch in unlock position and observe resistance value. If resistance is 300 ohms or greater, replace door lock switch and repeat «POWER DOOR LOCK TEST 1A»(ref-123787-S27848799562001101500000). If resistance is less than 300 ohms, go to next step.
3. Using scan tool in voltmeter mode, measure voltage at terminal No. 55 (White/Light Green wire) on BCM connector "B". If voltage is more than.5 volt, repair White/Light Green wire for short to battery voltage. If voltage is.5 volt or less, go to next step.
4. Using scan tool in voltmeter mode, measure voltage at terminal No. 44 (White/Red wire) on BCM connector "B". If voltage is more than.5 volt, repair White/Red wire for short to battery voltage. If voltage is.5 volt or less, replace BCM.

POWER DOOR LOCK TEST 16A - 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.

1. Remove door unlock relay. (Scheme 19)in EXTERIOR LIGHT TEST 4A. Using scan tool in ohmmeter mode, measure resistance at terminal "B" on door unlock relay. If resistance is less than 5 ohms, replace door unlock relay. If resistance is 5 ohms or greater, go to next step.
2. Access junction block connector "A". Do not disconnect connector. Using scan tool in ohmmeter mode, backprobe connector "A". Measure resistance on specified terminal. See UNLOCK RELAY OUTPUT CIRCUITS table. If resistance is 5 ohms or greater, repair suspect output open circuit. If resistance is less than 5 ohms, replace junction block.

UNLOCK RELAY OUTPUT CIRCUITS

POWER DOOR LOCK TEST 17A - 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.

1. If complaint is not with an interior front door lock switch, go to «POWER DOOR LOCK TEST 17B»(ref-123787-S03600340832001101500000) . Disconnect inoperative front door lock switch connector.
2. Using scan tool in voltmeter mode, measure voltage on switch connector middle terminal (White/Dark Green wire-left door, White/Light Green wire-right door). If voltage is more than 6 volts, repair White/Dark Green wire (left door) or White/Light Green wire (right door) for short to battery voltage. If voltage is 6 volts or less, go to next step.
3. If voltage measured is 4.5-6.0 volts, go to step 5). If voltage measured is less than 4.5 volts, determine if vehicle is equipped with Vehicle Theft Security System (VTSS). If vehicle is not equipped with VTSS, go to «POWER DOOR LOCK TEST 17C»(ref-123787-S14581908292001101500000) . If vehicle is equipped with VTSS, go to next step.
4. Determine if door locks operate correctly from door key cylinder switch. If locks do not operate, go to «POWER DOOR LOCK TEST 17C»(ref-123787-S14581908292001101500000) . If door locks operate correctly from door key cylinder switch, repair open door lock switch MUX circuit (White/Dark Green wire-left door, White/Light Green wire-right door).
5. Turn ignition off. Turn off all lights and accessories. Using scan tool in ohmmeter mode, measure resistance at terminal No. 3 (Black/Light Green wire) on front door lock switch connector. If resistance is less than 5 ohms, replace door lock switch. If resistance is 5 ohms or greater, repair open Black/Light Green.

POWER DOOR LOCK TEST 17B - 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.

1. Disconnect inoperative door key cylinder switch connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 1 (door switch MUX circuit) on inoperative key cylinder switch connector. Wire color is White with Dark Green (left door), Light Green (right door) or Red (liftgate) identifying stripe. Go to next step.
2. If voltage is less than 4.5 volts, go to next step. If voltage is 4.5 volts or greater, determine if door locks operate correctly when using interior door lock switch. If door lock operates, repair open suspect door lock MUX circuit. If door lock does not operate, go to «POWER DOOR LOCK TEST 17C»(ref-123787-S14581908292001101500000) .
3. Turn ignition off. Turn off all lights and accessories. Using scan tool in ohmmeter mode, measure resistance at terminal No. 2 (Black/Light Green wire) on suspect key cylinder switch connector. If resistance is 5 ohms or greater, repair open Black/Light Green wire. If resistance is less than 5 ohms, go to next step.
4. If problem is not with liftgate key cylinder switch, replace suspect door lock switch. If liftgate key cylinder switch is suspect, go to next step.
5. Using scan tool in voltmeter mode, measure voltage at terminal No. 1 (White/Red wire) on liftgate key cylinder switch connector. If voltage is more than 10 volts, repair White/Red wire for short to battery voltage. If voltage is 10 volts or less, replace liftgate key cylinder switch.

POWER DOOR LOCK TEST 17C - ALL DOORS FAIL TO LOCK & UNLOCK FROM ONE SWITCH

Note. Perform POWER DOOR LOCK TEST 17B before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

Access Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect con nector. Using scan tool in voltmeter mode, backprobe connector "B". Measure voltage on terminal for suspect door or liftgate. See DOOR SWITCH MUX CIRCUITS table. If voltage is 4.5 volts or less, replace BCM. If voltage is more than 4.5 volts, repair open MUX circuit.

DOOR SWITCH MUX CIRCUITS

POWER DOOR LOCK TEST 18A - 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.

1. If driver's door lock is operational, go to step 4). If driver's door lock is not operational, determine if vehicle is equipped with Remote Keyless Entry (RKE) system. If vehicle is equipped with RKE, go to next step. If vehicle is not equipped with RKE, ensure 30-amp jumper is installed in place of LF front door relay in junction block. (Scheme 19)in EXTERIOR LIGHT TEST 4A. Go to step 4).
2. Remove left front door unlock relay from junction block. (Scheme 19)in EXTERIOR LIGHT TEST 4A. Ensure ignition and all lights are off. Using scan tool in ohmmeter mode, measure resistance at terminal "E" on relay socket. If resistance is 5 ohms or greater, replace junction block. If resistance is less than 5 ohms, go to next step.
3. Using external ohmmeter, measure resistance between relay terminals "B" and "E". If resistance is 5 ohms or greater, replace left front door unlock relay. If resistance is less than 5 ohms, go to next step.
4. Install relay in junction block. Disconnect inoperative door lock motor connector. If a sliding door lock is inoperative, ensure door is closed before proceeding with testing. Using scan tool in ohmmeter mode, measure resistance on lock relay output circuit at lock motor connector. See LOCK RELAY OUTPUT CIRCUIT IDENTIFICATION table. If resistance is 5 ohms or greater, repair open lock output circuit. Ensure sliding door contacts are clean. If resistance is less than 5 ohms, go to next step. LOCK RELAY OUTPUT CIRCUIT IDENTIFICATION Location Terminal No. Wire Color Left Front 1 Brown/White Right Front 1 Brown/White Sliding Door 1 Brown/Yellow Liftgate 3 Brown/Yellow
5. Using scan tool in ohmmeter mode, measure resistance on unlock relay output circuit at lock motor connector. See UNLOCK RELAY OUTPUT CIRCUIT IDENTIFICATION table. If resistance is 5 ohms or greater, repair open unlock output circuit. Ensure sliding door contacts are clean. If resistance is less than 5 ohms, replace door lock motor.

UNLOCK RELAY OUTPUT CIRCUIT IDENTIFICATION

POWER DOOR LOCK TEST 19A - ALL 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.

1. Ensure ignition key is removed. Using scan tool, read key-in ignition status. If scan tool displays KEY IN IGNITION: OPEN, go to next step. If scan tool does not display KEY IN IGNITION: OPEN, go to «POWER DOOR LOCK TEST 19B»(ref-123787-S24383454622001101500000).
2. Remove door lock relay from junction block. (Scheme 19)in EXTERIOR LIGHT TEST 4A. Using external ohmmeter, measure resistance between relay terminals "A" and "C". If resistance is 60-80 ohms, go to next step. If resistance is not 60-80 ohms, replace relay.
3. Using scan tool in voltmeter mode, measure voltage on cavity "C" of door lock relay socket. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, replace junction block.
4. Connect test light between door lock relay socket terminals "A" and "C". (Scheme 19)in EXTERIOR LIGHT TEST 4A. Using scan tool, actuate door lock relay. If test light illuminates, replace door lock relay. If test light does not illuminate, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.

POWER DOOR LOCK TEST 19B - SHORTED KEY-IN IGNITION CIRCUIT

Note. Perform POWER DOOR LOCK TEST 19A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Disconnect key-in ignition switch connector. (Scheme 17)in CHIME TEST 4B. Using scan tool, read key-in ignition switch status. If scan tool displays KEY-IN IGNITION SW: CLOSED, go to next step. If scan tool does not display KEY-IN IGNITION SW: CLOSED, replace ignition switch. See STEERING COLUMN SWITCHES article in the ACCESSORIES/SAFETY EQUIPMENT section.
2. Turn ignition off. Disconnect Body Control Module (BCM) connector "A". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool in ohmmeter mode, measure resistance at terminal No. 4 (Light Blue wire) on BCM connector "A". If resistance is less than 5 ohms, repair Light Blue wire for short to ground. If resistance is 5 ohms or greater, replace BCM.

POWER DOOR LOCK TEST 20A - ALL DOORS FAIL TO 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.

1. Remove door unlock relay from junction block. (Scheme 19)in EXTERIOR LIGHT TEST 4A. Using external ohmmeter, measure resistance between relay terminals "A" and "C". If resistance is 60-80 ohms, go to next step. If resistance is not 60-80 ohms, replace relay.
2. Using scan tool in voltmeter mode, measure voltage at terminal "C" on door unlock relay socket. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, replace junction block.
3. Connect test light between door lock relay socket terminals "A" and "C". (Scheme 19)in EXTERIOR LIGHT TEST 4A. Using scan tool, actuate door unlock relay. If test light illuminates, replace door unlock relay. If test light does not illuminate, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.

POWER DOOR LOCK TEST 21A - LEFT FRONT DOOR FAILS TO UNLOCK

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.

1. Remove left front door unlock relay from junction block. (Scheme 19)in EXTERIOR LIGHT TEST 4A. Using external ohmmeter, measure resistance between relay terminals "A" and "C". If resistance is 60-80 ohms, go to next step. If resistance is not 60-80 ohms, replace relay.
2. Using scan tool in voltmeter mode, measure voltage on terminal "C" of left front door unlock relay socket. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, replace junction block.
3. Connect test light between left front door lock relay terminals "A" and "C". (Scheme 19)in EXTERIOR LIGHT TEST 4A. Using scan tool, actuate left front door unlock relay. If test light illuminates, replace left front door unlock relay. If test light does not illuminate, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.

POWER DOOR LOCK TEST 22A - SLIDING DOOR(S) & LIFTGATE FAIL TO LOCK

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.

Turn ignition off. Disconnect junction block connectors "A" and "B". (Scheme 16)in CHIME TEST 2A. Using external ohmmeter, measure resistance between ground and terminal No. 25 (Brown/Light Blue wire) on connector "B". If resistance is less than 5 ohms, repair Brown/Light Blue wire for short to ground. If resistance is 5 ohms or greater, repair circuit at terminal No. 32 (Brown/Light Blue wire) on junction block connector "B" for short to ground.

POWER DOOR LOCK TEST 23A - FRONT DOORS FAIL TO LOCK

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.

Turn ignition off. Disconnect junction block connectors "A" and "B". (Scheme 16)in CHIME TEST 2A. Using external ohmmeter, measure resistance between chassis ground and connector "B", terminal No. 23 (Brown/White wire). If resistance is less than 5 ohms, repair Brown/White wire for short to ground. If resistance is 5 ohms or greater, repair right front lock relay output circuit (Brown/White wire) between terminal No. 23 on connector "B" and right front lock motor for short to ground.

POWER DOOR LOCK TEST 24A - LIFTGATE & LEFT SLIDING DOOR FAIL TO UNLOCK

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.

Turn ignition off. Disconnect junction block connectors "A" and "B". (Scheme 16)in CHIME TEST 2A. Using external ohmmeter, measure resistance between ground and terminal No. 32 (Violet/Yellow wire) on connector "A". If resistance is less than 5 ohms, repair Violet/Yellow wire for short to ground. If resistance is 5 ohms or greater, repair liftgate unlock relay output circuit (Violet/Yellow wire) between terminal No. 10 on connector "A" and liftgate lock motor for short to ground.

POWER DOOR LOCK TEST 25A - RIGHT FRONT & RIGHT SLIDING DOORS FAIL TO UNLOCK

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.

Turn ignition off. Disconnect junction block connectors "A" and "B". (Scheme 16)in CHIME TEST 2A. Using external ohmmeter, measure resistance between ground and terminal No. 34 (Violet/White wire) on connector "A". If resistance is less than 5 ohms, repair Violet/White wire for short to ground. If resistance is 5 ohms or greater, repair right front unlock relay output circuit (Violet/White wire) between terminal No. 25 on connector "A" and right front lock motor for short to ground.

POWER DOOR LOCK TEST 26A - 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.

1. Open driver's door. Using scan tool, read driver's door ajar status. If scan tool displays DR DOOR AJAR: CLOSED, go to next step. If scan tool does not display DR DOOR AJAR: CLOSED, go to «DOOR AJAR TEST 3A»(ref-123787-S14469818892001101500000).
2. Ensure key is in ignition switch. Using scan tool, read key-in ignition status. If scan tool displays KEY-IN IGN: CLOSED, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If scan tool does not display KEY-IN IGN: CLOSED, go to next step.
3. Disconnect key-in ignition switch connector. (Scheme 17)in CHIME TEST 4B. Using scan tool in ohmmeter mode, measure resistance at terminal No. 2 (Black wire) on key-in ignition switch connector. If resistance is 5 ohms or greater, repair open Black wire. If resistance is less than 5 ohms, go to next step.
4. Connect jumper wire between key-in ignition switch connector terminals. Using scan tool, read key-in ignition status. If scan tool displays KEY-IN IGN: CLOSED, replace ignition switch. If scan tool does not display KEY-IN IGN: CLOSED, go to next step.
5. Access Body Control Module (BCM) connector "A". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect connector. Backprobe connector using a jumper wire. Connect jumper wire between ground and terminal No. 4 (Light Blue wire).
6. 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, go to next step.
7. Turn ignition off. Disconnect BCM connector "A". Inspect connector terminals and repair as needed. If connector is okay, replace BCM.

POWER DOOR LOCK TEST 27A - REMOTE KEYLESS ENTRY PROBLEM

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.

Note. After repairing Remote Keyless Entry (RKE) system, transmitters may have to be reprogrammed. See KEYLESS ENTRY SYSTEM - REMOTE article in the ACCESSORIES/SAFETY EQUIPMENT section.

1. Access RKE module under instrument panel cover. (Scheme 20) Turn ignition off. Disconnect RKE module connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 3 (Pink wire) on RKE harness connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
2. Using scan tool in ohmmeter mode, measure resistance at terminal No. 5 (Gray/Black wire) on RKE module harness connector. Grounding of circuit will cause RKE system to be inoperative. If resistance is less than 100 ohms, repair Gray/Black wire for short to ground. If resistance is 100 ohms or greater, go to next step.
3. Using scan tool in ohmmeter mode, measure resistance at terminal No. 4 (Black/Light Green wire) on RKE module harness connector. If resistance is 5 ohms or greater, repair open Black/Light Green wire. If resistance is less than 5 ohms, go to next step.
4. Ensure gear shift selector is in Park. Using scan tool in voltmeter mode, measure voltage at terminal No. 6 (Light Green/Red wire) on RKE module harness connector. If voltage is more than 4 volts, go to «POWER DOOR LOCK TEST 27B»(ref-123787-S31349307602001101500000). If voltage is 4 volts or less, go to next step.
5. Connect jumper wire between ground and terminal No. 6 (Light Green/Red wire) on RKE module harness connector. Disconnect Body Control Module (BCM) connector "A". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool in ohmmeter mode, measure resistance at terminal No. 1 (Light Green/Red wire) on connector "A". If resistance is 5 ohms or greater, repair open Light Green/Red wire. If resistance is less than 5 ohms, go to next step.
6. Remove jumper wire. Using scan tool in ohmmeter mode, measure resistance at terminal No. 1 (Light Green/Red wire) on connector "A". If resistance is 100 ohms or greater, replace BCM. If resistance is less than 100 ohms, repair Light Green/Red wire for short to ground.

Locating RKE Module. Scheme 20

POWER DOOR LOCK TEST 27B - REMOTE KEYLESS ENTRY PROBLEM

Note. Perform POWER DOOR LOCK TEST 27A 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. After repairing Remote Keyless Entry (RKE) system, transmitters may have to be reprogrammed. See KEYLESS ENTRY SYSTEM - REMOTE article in the ACCESSORIES/SAFETY EQUIPMENT section.

Connect jumper wire between ground and terminal No. 5 (Gray/Black wire) on RKE module harness connector. Disconnect Body Control Module (BCM) connector "A". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool in ohmmeter mode, measure resistance at terminal No. 37 (Gray/Black wire) on connector "A". If resistance is 5 ohms or greater, repair open Gray/Black wire. If resistance is less than 5 ohms, replace RKE module.

POWER DOOR LOCK TEST 28A - AUTOMATIC DOOR LOCK MALFUNCTION

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.

1. 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, enable auto door locks using scan tool and retest system.
2. Using scan tool, actuate door locks. If door locks do not operate, go to «POWER DOOR LOCK TEST 1A»(ref-123787-S27848799562001101500000) . If door locks operate, go to next step.
3. Ensure driver's door is closed. Using scan tool, read door ajar switch status. If scan tool displays DRDOOR AJAR: OPEN, go to next step. If scan tool does not display DRDOOR AJAR: OPEN, go to «POWER DOOR LOCK TEST 2A»(ref-123787-S33670862742001101500000) .
4. Ensure right front door is closed. Using scan tool, read door ajar switch status. If scan tool displays RFDOOR AJAR: OPEN, go to next step. If scan tool does not display RFDOOR AJAR: OPEN, go to «POWER DOOR LOCK TEST 4A»(ref-123787-S01196054162001101500000) .
5. Ensure left sliding door is closed. Using scan tool, read door ajar switch status. If scan tool displays LEFT SLIDING DOOR AJAR: OPEN, go to next step. If scan tool does not display LEFT SLIDING DOOR AJAR: OPEN, go to «POWER DOOR LOCK TEST 10A»(ref-123787-S08060007912001101500000) .
6. Ensure right sliding door is closed. Using scan tool, read door ajar switch status. If scan tool displays RIGHT SLIDING DOOR AJAR: OPEN, go to next step. If scan tool does not display RIGHT SLIDING DOOR AJAR: OPEN, go to «POWER DOOR LOCK TEST 6A»(ref-123787-S18103128112001101500000) .
7. Ensure liftgate is closed. Using scan tool, read door ajar switch status. If scan tool displays LIFTGATE AJAR: OPEN, go to next step. If scan tool does not display LIFTGATE AJAR: OPEN, go to «POWER DOOR LOCK TEST 8A»(ref-123787-S29165208362001101500000) .
8. Using scan tool read BCM monitors. Observe TP sensor while moving throttle. If TP sensor percentage does not increase while throttle is depressed, check for related PCM DTCs. See TESTS W/CODES article in the ENGINE PERFORMANCE section. If TP sensor percentage does increase, go to next step.
9. Lift and support vehicle. Start vehicle and place transmission in Drive. Using scan tool, read BCM monitors. Observe VSS reading while rotating drive wheels. If MPH increases as throttle is opened, turn ignition off. Circuit is currently functioning correctly. Retest system. If MPH does not increase, check for related PCM DTCs. See TESTS W/CODES article in the ENGINE PERFORMANCE section.

VTSS TEST 1A - IDENTIFYING VEHICLE THEFT SECURITY 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-1B - VERIFICATION PROCEDURE after each repair.

1. Determine if VTSS indictor light illuminates while driving vehicle. If light illuminates, go to «VTSS TEST 3A»(ref-123787-S09198658362001101500000) . If indicator light does not illuminate, go to next step.
2. Using scan tool select BODY, then BODY COMPUTER. Scan tool performs a CCD bus test. If scan tool is blank, displays a CCD bus failure message or displays NO RESPONSE, go to «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000) . If CCD bus test is okay, go to next step.
3. Read body control module fault messages. See SCAN TOOL MESSAGE DIRECTORY table. If no messages are displayed, go to next step. SCAN TOOL MESSAGE DIRECTORY Display Perform BATTERY POWER TO MODULE DISCONNECTED (1) «TEST 3A»(ref-123787-S40225623352001101500000) DOOR OR LIFTGATE MUX CKT SHORT TO GND «POWER DOOR LOCK TEST 1A»(ref-123787-S27848799562001101500000) FRONT DOOR OR LIFTGATE KEY CYL DISARM OR ARM SW FAILURE «POWER DOOR LOCK TEST 1A»(ref-123787-S27848799562001101500000) FRONT DOOR LOCK OR UNLOCK SWITCH FAILURE «POWER DOOR LOCK TEST 1A»(ref-123787-S27848799562001101500000) (1) See «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000) .
4. Using scan tool, select THEFT ALARM, then MONITOR DISPLAY. Read VTSS status. If scan tool displays NO RESPONSE, go to «VTSS TEST 2A»(ref-123787-S31013218282001101500000) . If VTSS mode is not DISARMED, go to «VTSS TEST 1B»(ref-123787-S18660009562001101500000) . If display is 1 NO RESPONSE/2 NO RESPONSE, go to «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000) . Go to next step.
5. Ensure all doors are closed and properly aligned. Fully lower both front windows. Using scan tool, actuate horn. If horn does not sound, go to «VTSS TEST 6A»(ref-123787-S04622204932001101500000) . If horn sounds, go to next step.
6. Using scan tool, actuate headlights, parking/tail lights and VTSS indicator light. If headlights or parking/tail lights fail to flash, go to «EXTERIOR LIGHT TEST 1A»(ref-123787-S15649231372001101500000) . If VTSS indicator light fails to flash, go to «VTSS TEST 7A»(ref-123787-S22534491822001101500000) . Go to next step.
7. Using scan tool, select THEFT ALARM, then MISCELLANEOUS. Select CHANGE MODE, then DIAGNOSTICS. VTSS should now be in diagnostic mode. Follow instructions displayed by scan tool. If TURN KEY TO ACC POSITION is not displayed, go to «VTSS TEST 4A»(ref-123787-S40750861272001101500000) . If TURN KEY TO ACC POSITION is displayed, go to next step.
8. If scan tool displays NO RESPONSE once ignition is turned to ACC position, go to «VTSS TEST 5A»(ref-123787-S17213664572001101500000) . If scan tool displays TURN KEY TO ACC POSITION for more than 15 seconds, go to «VTSS TEST 5A»(ref-123787-S17213664572001101500000) . If scan tool displays TURN KEY TO ACC POSITION for more than 15 seconds, go to next step.
9. Remove key from ignition switch. Wait 2 seconds after performing each of the following actions. Open, then close each door, liftgate and hood. Operate power door lock switch to lock, then unlock position. Rotate key both directions in each door and liftgate lock. Horn should sound after each action. If horn does not sound, see «VTSS SYMPTOM DIRECTORY»(ref-123787-S01740517062001101500000) table. If horn sounds, go to next step.
10. Turn ignition on. If horn does not sound, go to «VTSS TEST 4A»(ref-123787-S40750861272001101500000) . Using scan tool, select THEFT ALARM, then MONITOR DISPLAY. Read VTSS status. If VTSS mode is other than DISARMED, go to «VTSS TEST 1B»(ref-123787-S18660009562001101500000) . If display is 1 NO RESPONSE/2 NO RESPONSE, go to «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000) . If display is 1 NOT OK TO ARM VTSS/2 OK TO RUN ENGINE, 20 engine start cycles must be done before system is operational.

VTSS SYMPTOM DIRECTORY

VTSS TEST 1B - DISARMING VTSS SYSTEM

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.

1. Turn ignition off. Insert key in driver's door and turn to unlock position. Turn ignition on. Using scan tool, read VTSS status. If scan tool does not display CURRENT MODE DISARMED, go to next step. If scan tool displays CURRENT MODE DISARMED, system is currently functioning correctly. Go to «VTSS TEST 1A»(ref-123787-S01118955492001101500000) .
2. Turn ignition off. Insert key in right front door and turn to unlock position. Turn ignition on. Using scan tool, read VTSS status. If scan tool does not display CURRENT MODE DISARMED, go to «POWER DOOR LOCK TEST 17B»(ref-123787-S03600340832001101500000) . If scan tool displays CURRENT MODE DISARMED, system is currently functioning correctly. Go to «VTSS TEST 1A»(ref-123787-S01118955492001101500000) .

VTSS TEST 2A - DISARMING VTSS SYSTEM

Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1B - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, read body controller module information. If scan tool displays NS PREMIUM W/VTSS, see «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000). If scan tool does not display NS PREMIUM W/VTSS, go to next step.
2. If scan tool displays NS BODY PREMIUM, vehicle is equipped with this option. Using scan tool, select BODY CONTROLLER, then MISCELLANEOUS. Using scan tool, enable VTSS. If system is enabled, go to «VTSS TEST 1A»(ref-123787-S01118955492001101500000). If system is not enabled, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.

VTSS TEST 3A - VTSS INDICATOR LAMP ILLUMINATES WHILE DRIVING

Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1B - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Disconnect Powertrain Control Module (PCM) harness connectors. PCM is located between left inner fender and power distribution center. Inspect connector terminals No. 59 and 60. Repair as needed and go to next step.
2. Reconnect PCM harness connectors. Using scan tool, read PCM status. While observing scan tool, wiggle harness. If scan tool displays NO RESPONSE FROM PCM, inspect specified circuits between Body Control Module (BCM) and PCM for open. See CCD BUS CIRCUIT IDENTIFICATION table. If scan tool does not display NO RESPONSE FROM PCM, problem may be intermittent.

CCD BUS CIRCUIT IDENTIFICATION

VTSS TEST 4A - IGN CIRCUIT TO BCM

Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1B - VERIFICATION PROCEDURE after each repair.

Access junction block connector "C". (Scheme 16)in CHIME TEST 2A. Do not disconnect connector. Using scan tool in voltmeter mode, measure voltage on terminal No. 30 (Dark Green/Red wire). If voltage is more than 10 volts, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If voltage is 10 volts or less, repair open Dark Green/Red wire.

VTSS TEST 5A - ACC CIRCUIT TO BCM

Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1B - VERIFICATION PROCEDURE after each repair.

Access junction block connector "D". (Scheme 16)in CHIME TEST 2A. Do not disconnect connector. Ensure ignition is RUN position. Using scan tool in voltmeter mode, measure voltage on terminal No. 31 (Black/White wire). If voltage is more than 10 volts, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If voltage is 10 volts or less, repair open Black/White wire.

VTSS TEST 6A - HORN CIRCUIT MALFUNCTION

Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1B - VERIFICATION PROCEDURE after each repair.

1. Push horn button on steering wheel. If horn sounds, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If horn does not sound, go to next step.
2. Remove and inspect fuse No. 20 on Power Distribution Center (PDC). (Scheme 18)in EXTERIOR LIGHT TEST 2A. If fuse is open, go to «VTSS TEST 6B»(ref-123787-S01111557372001101500000). If fuse is okay, reinstall fuse. Go to next step.
3. Remove horn relay from PDC. Using scan tool in voltmeter mode, measure voltage on terminal "A" of horn relay socket. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, replace PDC.
4. Using scan tool in voltmeter mode, measure voltage on terminal "B" of horn relay socket. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, replace PDC.
5. Connect jumper wire between relay socket terminals "A" and "D". If horn sounds, go to next step. If horn does not sound, go to step 7).
6. Connect test light between relay terminals "A" and "C". Using scan tool, actuate horn. If test light flashes, replace horn relay. If test light does not flash, replace BCM.
7. Ensure jumper wire is still connected. Disconnect horns. Using scan tool in ohmmeter mode, measure resistance at terminal No. 1 (Black wire) on each horn harness connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open Black wire.
8. Using scan tool in voltmeter mode, measure voltage at terminal No. 2 (Dark Green/Red wire) on each horn connector. If voltage is more than 10 volts, replace horns. If voltage is 10 volts or less, repair open Dark Green/Red wire.

VTSS TEST 6B - HORN CIRCUIT MALFUNCTION

Note. Perform VTSS TEST 6A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1B - VERIFICATION PROCEDURE after each repair.

1. Replace horn fuse (Power Distribution Center (PDC) fuse No. 20). Depress horn button on steering wheel. Inspect horn fuse. If fuse is okay, system is currently functioning correctly. If fuse is blown and go to next step.
2. Disconnect horns. Remove horn relay from PDC. (Scheme 18)in EXTERIOR LIGHT TEST 2A. Using scan tool in ohmmeter mode, measure resistance at terminal "D" on relay connector. If resistance is less than 5 ohms, repair open Dark Green/Red wires between horns and relay. If resistance is 5 ohms or greater, replace horns.

VTSS TEST 7A - VTSS INDICATOR LIGHT DRIVER 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.

1. Turn ignition on. Once BCM has completed light check, determine if VTSS indicator light is on. If light is on, go to «VTSS TEST 7B»(ref-123787-S16739945912001101500000). If light is not on, go to next step.
2. Turn ignition off. Disconnect Body Control Module (BCM) connector "A". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Connect jumper wire between ground and terminal No. 16 (Black/Orange wire) on connector "A". If VTSS indicator light illuminates, replace BCM. If light does not illuminate, go to next step.
3. Disconnect information center harness connector. Inspect circuit board. Replace as needed. Remove VTSS indicator light bulb. Replace bulb as needed. Go to next step.
4. Using scan tool in voltmeter mode, measure voltage at terminal No. 12 (Pink wire) on information center connector. If voltage is more than 10 volts, repair open Black/Orange wire between information center and BCM. If voltage is 10 volts or less, repair open Pink wire.

VTSS TEST 7B - VTSS INDICATOR LIGHT DRIVER SHORT CIRCUIT

Note. Perform VTSS TEST 7A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1B - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, read PCM status. If scan tool does not display ACTIVE ON THE BUS, see «VEHICLE COMMUNICATIONS TESTS»(ref-123787-S40757884912001101500000). If scan tool displays ACTIVE ON THE BUS, disconnect Body Control Module (BCM) connector "A". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Go to next step.
2. If VTSS indicator light is not illuminated, replace BCM. If VTSS indicator light is illuminated, repair VTSS indicator light driver circuit for short to ground. Circuit is between BCM connector "A", terminal No. 16 (Black/Orange wire) and junction block P33 connector, terminal No. 16 (Pink wire).

VTSS TEST 8A - HOOD AJAR SWITCH SENSE SHORT CIRCUIT

Note. Perform VTSS TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1B - VERIFICATION PROCEDURE after each repair.

1. Ensure hood is closed and correctly aligned. Using scan tool, read hood ajar switch status. If scan tool displays CLOSED, go to next step. If scan tool does not display CLOSED, go to «VTSS TEST 8B»(ref-123787-S33754138752001101500000).
2. Disconnect hood ajar switch. Using scan tool, read hood ajar switch status. If scan tool displays CLOSED, go to next step. If scan tool does not display CLOSED, replace hood ajar switch.
3. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool in ohmmeter mode, measure resistance at terminal No. 43 (Brown/Tan wire) on connector "B". If resistance is less than 5 ohms, repair Brown/Tan wire for short to ground. If resistance is 5 ohms or greater, replace BCM.

VTSS TEST 8B - HOOD AJAR SWITCH SENSE CIRCUIT OPEN

Note. Perform VTSS TEST 8A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1B - VERIFICATION PROCEDURE after each repair.

1. Disconnect hood ajar switch connector. Connect jumper wire between ground and terminal No. 1 (Brown/Tan wire) on connector. Using scan tool, read hood ajar switch status. If scan tool displays CLOSED, replace hood ajar switch. If scan tool does not display CLOSED, go to next step.
2. Access Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect connector. Connect jumper wire between ground and terminal No. 43 (Brown/Tan wire) on connector. Using scan tool, read hood ajar switch status. If scan tool displays CLOSED, repair open Brown/Tan wire. If scan tool does not display CLOSED, replace BCM.

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.

Turn ignition on and verify operation for front and rear window windshield wipers. 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.

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.

1. Using scan tool, actuate front wiper relay. 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-123787-S25995284462001101500000).
2. Using scan tool, stop front wiper low speed actuation. Locate Power Distribution Center (PDC) on left front fender next to battery. Remove and inspect wiper fuse No. 9 (30-amp). (Scheme 18)in EXTERIOR LIGHTS TEST 2A. If fuse is okay, go to next step. If fuse is open, go to «WINDSHIELD WIPER TEST 2C»(ref-123787-S10230148332001101500000).
3. Using scan tool in voltmeter mode, check voltage at outside terminal (fused B+) on fuse No. 9 socket. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair or replace PDC.
4. Reinstall wiper fuse No. 9. Remove front wiper ON relay from PDC and ensure connector is clean and not damaged. Using scan tool in voltmeter mode, check voltage at terminal "D" on relay socket. (Scheme 19)in EXTERIOR LIGHTS TEST 4A. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair or replace PDC.
5. Connect a jumper wire between terminals "B"and "D" on wiper ON relay socket. If wiper motor operates, disconnect jumper wire and go to «WINDSHIELD WIPER TEST 2D»(ref-123787-S35831138112001101500000). If wiper motor does not operate, go to next step.
6. Disconnect wiper HI/LO relay, located in PDC. Ensure connector is clean and not damaged. Ensure jumper wire is still connected between terminals "B" and "D" on wiper ON relay. Using scan tool in voltmeter mode, check voltage at terminal "B" on wiper HI/LO relay socket. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair or replace PDC.
7. Disconnect jumper wire from front wiper ON relay socket. Connect a jumper wire between terminal "D" on wiper ON relay socket and terminal No. "E" 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-123787-S19927851462001101500000).

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.

1. Stop wiper motor actuation. Using scan tool, read intermittent wiper voltage. If scan tool does not display INTRMT WIPE: 0.0-3.0V, go to next step. If scan tool displays INTRMT WIPE: 3.1V or greater, repair open ground circuit between Body Control Module (BCM) and multi-function switch.
2. Disconnect multifunction switch 12-pin connector. (Scheme 17)in CHIME TEST 4B. Ensure connector is clean and not damaged. Using scan tool in voltmeter mode, check voltage at terminal No. 2 (Dark Green/Yellow wire) on multifunction switch connector. If voltage is more than 3 volts, replace multifunction switch. If voltage is 3 volts or less, go to next step.
3. Turn ignition off. Disconnect Body Control Module (BCM) connector "A". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool in ohmmeter mode, measure resistance at terminal No. 2 (Dark Green/Yellow wire) on multifunction switch connector. If resistance is 5 ohms or less, repair Dark Green/Yellow wire for short to ground. If resistance is greater than 5 ohms, go to next step.
4. Connect jumper wire between ground and terminal No. 7 on BCM connector "A". Measure resistance at terminal No. 2 (Dark Green/Yellow wire) on multifunction switch connector. If resistance is less than 5 ohms, replace BCM. If resistance is 5 ohms or greater, repair open Dark Green/Yellow wire between multifunction switch connector and BCM.

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.

1. Remove front wiper ON relay from Power Distribution Center (PDC). Ensure connector is clean and not damaged. (Scheme 18)in EXTERIOR LIGHT TEST 2A. Remove HI/LO wiper relay and ensure connector is clean and not damaged. Using scan tool in ohmmeter mode, measure resistance at terminal "D" on front wiper ON relay socket. If resistance is 5 ohms or greater, go to next step. If resistance is less than 5 ohms, replace PDC.
2. Using scan tool in ohmmeter mode, measure resistance at terminal "B" on front wiper ON relay socket. If resistance is more than 5 ohms, go to next step. If resistance is less than 5 ohms, replace PDC.
3. Disconnect wiper module connector. (Scheme 21) Using scan tool in ohmmeter mode, measure resistance at terminal "E" on wiper HI/LO 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 Brown/White wire between terminal No. 1 on wiper module connector and terminal "E" on wiper HI/LO relay. Replace wiper fuse No. 9 (30-amp).
4. Using scan tool in ohmmeter mode, check resistance at terminal "D" on wiper HI/LO relay. If resistance is less than 5 ohms, repair short to ground in Red/Yellow wire between terminal "C" on wiper HI/LO relay socket and terminal No. 5 on wiper module connector. Replace wiper fuse No. 9 (30-amp). If resistance is 5 ohms or greater, replace wiper motor and wiper fuse No. 9 (30-amp).

Locating Wiper Module Connector. Scheme 21

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.

1. Remove jumper wire from front wiper ON relay. Using scan tool in voltmeter mode, measure voltage at terminal "A" on front wiper ON relay socket. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair or replace Power Distribution Center (PDC).
2. Reinstall wiper ON relay. Access Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect connector. Connect jumper wire between ground and terminal No. 73 (Red/Violet wire) on BCM connector "B".
3. If wiper motor operates, replace BCM. If wiper motor does not operate, remove wiper ON relay. Do not disconnect jumper wire. Using scan tool in ohmmeter mode, measure resistance at terminal "C" on relay socket. If resistance is less than 5 ohms, replace relay. If resistance is 5 ohms or greater, repair open Red/Violet wire between BCM and front wiper ON relay socket.

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.

1. Disconnect wiper module connector. (Scheme 21)in WINDSHIELD WIPER TEST 2C. Ensure jumper wire between wiper ON relay socket terminals "D" and "E" is connected.
2. Using scan tool in voltmeter mode, check voltage on wiper module terminal No. 1 (Brown/White wire). If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open in Brown/White wire between HI/LO wiper relay and wiper motor module.
3. Ensure ignition is off. Ensure all lights and accessories are off. Using scan tool in ohmmeter mode, check resistance on wiper module terminal No. 7 (Black wire). If resistance is less than 5 ohms, replace wiper motor. If resistance is 5 ohms or greater, repair open Black wire.

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.

1. Disconnect wiper HI/LO relay from Power Distribution Center (PDC). (Scheme 18)in EXTERIOR LIGHT TEST 2A. Using scan tool in voltmeter mode, measure voltage at terminal "C" on wiper HI/LO relay. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair or replace PDC.
2. Connect a jumper wire between terminals "B" and "D" on wiper HI/LO relay socket. If wiper motor does not operate in high speed, leave jumper wire connected and go to next step. If wiper motor operates in high speed, go to step 4).
3. Disconnect wiper module connector. (Scheme 21)in WINDSHIELD WIPER TEST 2C. Ensure connector is clean and not damaged. Using scan tool in voltmeter mode, measure voltage at terminal No. 5 (Red/Yellow wire) on wiper module connector. If voltage is more than 10 volts, replace wiper motor. If voltage is 10 volts or less, repair open in Red/Yellow wire between HI/LO wiper relay and wiper motor module.
4. Disconnect jumper wire. Using scan tool in ohmmeter mode, measure resistance at terminal "A" on wiper HI/LO relay. Move wiper switch to HI position. If resistance is less than 5 ohms, replace wiper HI/LO relay. If resistance is 5 ohms or greater, go to next step.
5. Disconnect multifunction switch. (Scheme 17)in CHIME TEST 4B. Connect jumper wire between ground and terminal No. 3 (White wire) on multifunction switch connector. Go to next step.
6. Using scan tool in ohmmeter mode, measure resistance at terminal "A" on wiper HI/LO relay socket. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open White wire between PDC and multifunction switch.
7. Remove jumper wire. Using scan tool in ohmmeter mode, measure resistance at terminal No. 1 (Black wire) on multifunction switch connector. If resistance is 5 ohms or greater, repair open Black wire. If resistance is less than 5 ohms, replace multi-function switch.

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.

1. 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 in low speed, go to step 4).
2. Disconnect wiper HI/LO relay from Power Distribution Center (PDC). Connect a jumper wire between terminals "B" and "E" on wiper HI/LO relay. (Scheme 18)in EXTERIOR LIGHT TEST 2A. Using scan tool, actuate wiper motor in low speed. If wiper motor operates in low speed, replace HI/LO wiper relay. If wiper motor does not operate in low speed, go to next step.
3. Disconnect wiper module connector and ensure connector is clean and not damaged. (Scheme 21)in WINDSHIELD WIPER TEST 2C. Using scan tool in voltmeter mode, check voltage on wiper motor 4-pin connector, terminal No. 1 (Brown/White wire). If voltage is more than 10 volts, replace wiper motor. If voltage is 10 volts or less, repair open in Brown/White wire.
4. Using scan tool, stop wiper motor actuation. Move wiper switch to LOW speed position. Access Body Control Module (BCM) connector "A". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect connector. Go to next step.
5. Using scan tool in voltmeter mode, backprobe terminal No. 7 (Dark Green/Red wire) on connector "A". If voltage is more than 6 volts, replace BCM. If voltage is 6 volts or less, 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.

1. Turn ignition on. Move wiper switch through all 6 intermittent positions. If wipers were inoperative in all positions, go to next step. If wipers were only inoperative in some switch positions, replace multifunction switch.
2. Using scan tool, monitor intermittent wiper voltage at each position of wiper switch. If voltage changes each time a different position is chosen, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If voltage does not change, replace multifunction switch.

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.

1. Operate wipers 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 currently operating correctly. Using scan tool, clear trouble codes and try to reproduce fault.
2. Turn ignition off. Access Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Remove connector cover. Do not disconnect connector. Go to next step.
3. Using scan tool in voltmeter mode, measure voltage on terminal No. 41 (Dark Green/White wire). Turn ignition on. Turn wiper switch to LOW speed position. Observe scan tool voltage reading. If voltage pulsates, replace BCM. If voltage does not pulsate, go to next step.
4. Turn ignition off. Disconnect scan tool voltmeter probe. Backprobing BCM connector "B", connect jumper wire between ground and terminal No. 41 (Dark Green/White wire). Disconnect wiper module connector. (Scheme 21)in WINDSHIELD WIPER TEST 2C.
5. Using an external ohmmeter, measure resistance between chassis ground and wiper module connector, terminal No. 4 (Dark Green/White wire). If resistance is less than 5 ohms, replace wiper motor. If resistance is 5 ohms or greater, repair open Dark Green/White wire between wiper motor and BCM.

WINDSHIELD WIPER TEST 6B - FRONT WIPER PARK CIRCUIT SHORT

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.

1. Operate wipers in intermittent mode. Using scan tool, monitor wiper park switch. If scan tool displays wiper park switch toggles from CLOSED to OPEN, system is currently operating correctly. Clear any stored trouble codes and try to reproduce fault. If scan tool does not display that wiper park switch toggles from CLOSED to OPEN, go to next step.
2. Turn ignition off. Disconnect wiper module connector. (Scheme 21)in WINDSHIELD WIPER TEST 2C. Using scan tool in voltmeter mode, measure voltage at terminal No. 4 (Dark Green/White wire) on module connector. If voltage is more than 4 volts, replace wiper motor. If voltage is 4 volts or less, go to next step.
3. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using scan tool in ohmmeter mode, measure resistance at terminal No. 4 (Dark Green/White wire) on module connector. If resistance is less than 5 ohms, repair Dark Green/White wire for short to ground. If resistance is 5 ohms or greater, 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.

1. Ensure windshield washer fluid reservoir is full. Turn ignition on. Momentarily push and release wash button on stalk switch. If washer pump does not operate, go to step 3). If washer pump operates, but wipers do not operate, go to next step. If washer pump and wipers operate, system is currently operating correctly.
2. Using scan tool, monitor front washer switch while pushing switch. If front washer switch toggles from OFF to ON, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If front washer switch does not toggle from OFF to ON, replace junction block.
3. Locate and disconnect washer pump 2-pin connector at bottom of washer fluid reservoir. Ensure connector is clean and not damaged. Using scan tool in voltmeter mode, check voltage on washer pump connector, terminal No. 1 (Dark Blue wire). If voltage is 10 volts or less, go to next step. If voltage is more than 10 volts, go to step 5).
4. Access junction block connector "B". (Scheme 16)in CHIME TEST 2A. Do not disconnect connector. Using scan tool in voltmeter mode, measure voltage on terminal No. 9 (Dark Blue wire). If voltage is 10 volts or less, go to next step. If voltage is more than 10 volts, repair open Dark Blue wire.
5. Disconnect junction block connector "B". Using scan tool in ohmmeter mode, measure resistance on terminal No. 9 (Dark Blue wire). If resistance is less than 5 ohms, repair Dark Blue wire for short to ground. If resistance is 5 ohms or greater, repair or replace or junction block.
6. Reconnect front washer pump connector. Access junction block connector "B". (Scheme 16)in CHIME TEST 2A. Do not disconnect connector. Using scan tool in voltmeter mode, measure voltage on terminal No. 28 (Brown wire). If voltage is 10 volts or less, repair open Brown wire. If voltage is more than 10 volts, go to next step.
7. Disconnect scan tool probe. Connect jumper wire between chassis ground and junction block connector "B", terminal No. 28 (Brown wire). If washer pump operates, go to next step. If washer pump does not operate, replace washer motor.
8. Move jumper wire to junction block connector "D", terminal No. 13 (Brown wire). If washer pump operates, go to next step. If washer pump does not operate, replace junction block.
9. Disconnect jumper wire. Disconnect multifunction switch. (Scheme 17)in CHIME TEST 4B. Using scan tool in voltmeter mode, measure voltage on terminal No. 11 (Brown wire). If voltage is 10 volts or less, repair open Brown wire. If voltage is more than 10 volts, replace multifunction switch.

WINDSHIELD WIPER TEST 8A - WIPER CONSTANTLY OPERATING WITH SWITCH 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.

1. Ensure ignition and wiper switch are in OFF position. Using scan tool, read intermittent wiper voltage. If voltage is.1 volts or less, go to next step. If voltage is more than.1 volts, replace multi-function switch.
2. Replace front wiper ON relay in Power Distribution Center (PDC) with known good relay. (Scheme 18)in EXTERIOR LIGHTS TEST 2A. If wipers stop operating, replace relay. If wipers continue to operate, go to next step.
3. Remove wiper ON relay. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Using external ohmmeter, measure resistance between ground and terminal "C" on wiper relay socket. If resistance is less than 100 ohms, repair wiper ON relay control circuit (Red/Violet wire) for short to ground. If resistance is 100 ohms or greater, replace BCM.

WINDSHIELD WIPER TEST 9A - REAR WIPER NOT OPERATING

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.

1. Turn ignition on. If instrument cluster gauges do not operate, go to «INSTRUMENT CLUSTER TEST 1A»(ref-123787-S33761371112001101500000). If gauges operate, depress rear wiper switch to ON position. If indicator light on switch illuminates, go to next step. If indicator light does not illuminate, go to «WINDSHIELD WIPER TEST 9B»(ref-123787-S29361966762001101500000).
2. Using scan tool, read rear wiper switch voltage. If voltage is about 2.5 volts, go to next step. If voltage is not about 2.5 volts, go to «WINDSHIELD WIPER TEST 9C»(ref-123787-S01516907632001101500000).
3. Disconnect rear wiper motor connector. Using scan tool in ohmmeter mode, measure resistance on terminal No. 3 (Black wire). If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open Black wire.
4. Ensure rear wiper switch is still on. Using scan tool in voltmeter mode, measure voltage at terminal No. 2 (Brown/Pink wire) on rear wiper motor connector. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open Brown/Pink wire.
5. Move voltmeter probe to terminal No. 1 (Brown/Light Green wire). If voltage is more than 10 volts, replace rear wiper motor. If voltage is 10 volts or less, go to next step.
6. Turn ignition off. Connect jumper wire from ground to terminal No. 1 (Brown/Light Green wire) on rear wiper motor connector. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.
7. Using scan tool in ohmmeter mode, measure resistance at terminal No. 49 (Brown/Light Green wire) on connector "B". If resistance is less than 5 ohms, replace BCM. If resistance is 5 ohms or greater, repair open Brown/Gray wire.

WINDSHIELD WIPER TEST 9B - REAR WIPER NOT OPERATING

Note. Perform WINDSHIELD WIPER TEST 9A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Remove fuse No. 8 from junction block. (Scheme 19)in EXTERIOR LIGHTS TEST 4A. Replace as needed. Go to next step. If fuse is okay, go to step 3).
2. Disconnect Heater, Ventilation and Air Conditioning (HVAC) control module 21-pin Blue connector (integral with instrument panel unit). Using scan tool in voltmeter mode, measure voltage on HVAC connector, terminal No. 10 (Black/Orange wire). If voltage is more than 10 volts, replace HVAC module. If voltage is 10 volts or less, repair open Black/Orange wire.
3. Disconnect Heater, Ventilation and Air Conditioning (HVAC) control module 21-pin Blue connector (integral with instrument panel unit). Using scan tool in ohmmeter mode, measure resistance on HVAC connector, terminal No. 10 (Black/Orange wire). If resistance is less than 5 ohms, repair Black/Orange wire for short to ground. If resistance is 5 ohms or greater, replace HVAC module.

WINDSHIELD WIPER TEST 9C - REAR WIPER NOT OPERATING

Note. Perform WINDSHIELD WIPER TEST 9A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-1A - VERIFICATION PROCEDURE after each repair.

1. Disconnect Body Control Module (BCM) connector "A". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Ensure rear wiper switch is in ON position.
2. Using scan tool in voltmeter mode, measure voltage at terminal No. 38 (Yellow/White wire) on connector "A". If voltage is more than 4 volts, replace BCM. If voltage is 4 volts or less, go to next step.
3. Connect jumper wire between ground and terminal No. 38 (Yellow/White wire) on connector "A". Disconnect Heater, Ventilation and Air Conditioning (HVAC) control module 21-pin Blue connector (integral with instrument panel unit). Using scan tool in ohmmeter mode, measure resistance at terminal No. 2 (Yellow/White wire) on HVAC connector. If resistance is 5 ohms or more, repair open Yellow/White wire. If resistance is less than 5 ohms, replace HVAC module.

WINDSHIELD WIPER TEST 10A - REAR WIPER &/OR WASHER OPERATING CONTINUOUSLY

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.

1. Ensure rear wiper switch is off. Using scan tool, monitor rear wiper switch voltage. If voltage is more than 4.2 volts, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If voltage is 4.2 volts or less, go to next step.
2. Determine if washer motor runs for 10 seconds each time ignition switch is turned to ON position. If motor runs, replace BCM. If motor does not run, disconnect rear wiper motor connector.
3. Using scan tool in voltmeter mode, measure voltage on rear wiper motor connector, terminal No. 1 (Brown/Light Green wire). If no voltage is displayed, replace wiper motor. If any voltage is displayed, go to next step.
4. Disconnect Body Control Module (BCM) connector "B". (Scheme 16)in CHIME TEST 2A. Using scan tool in voltmeter mode, measure voltage on rear wiper motor connector, terminal No. 1 (Brown/Light Green wire). If no voltage is displayed, replace BCM. If any voltage is displayed, repair Brown/Light Green wire for short to battery voltage.

WINDSHIELD WIPER TEST 11A - REAR WIPER NOT OPERATING 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.

1. Press intermittent rear wiper switch to ON position. If switch indicator light does not illuminate, replace Heating, Ventilation and Air Conditioning (HVAC) control module (integral with instrument panel unit). If light does illuminate, go to next step.
2. Using scan tool, monitor rear wiper switch voltage. If voltage is about 1.3 volts, go to next step. If voltage is not about 1.3 volts, replace HVAC control module.
3. Disconnect rear wiper motor connector. Connect test light between ground and terminal No. 1 (Brown/Gray wire) on rear wiper motor connector. Ensure intermittent switch is still in ON position. Monitor test light for 30 seconds (minimum). If test light cycles on, and then off, replace rear wiper motor. If test light does not illuminate, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.

WINDSHIELD WIPER TEST 12A - REAR WIPER 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.

1. Ensure rear wiper switch is in OFF position. If any indicator light is illuminated, replace Body Control Module (BCM). BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. If all indicator lights are off, go to next step.
2. Using scan tool, monitor rear wiper switch voltage. If voltage is less than one volt, go to next step. If voltage is one volt or greater, go to «WINDSHIELD WIPER TEST 10A»(ref-123787-S38905273702001101500000).
3. Disconnect rear wiper motor connector. Connect test light between ground and terminal No. 1 (Brown/Gray wire) on rear wiper motor connector. Turn intermittent switch to ON position. Monitor test light for 30 seconds (minimum). If test light cycles on, and then off, replace rear wiper motor. If test light does not illuminate, replace BCM.

WINDSHIELD WIPER TEST 13A - REAR WASHER MOTOR INOPERATIVE

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.

1. Using scan tool, monitor rear wiper switch MUX voltage. Press and hold rear washer switch. If voltage is not about 3.8 volts, replace Heating, Ventilation and Air Conditioning (HVAC) control module. If voltage is about 3.8 volts, go to next step.
2. Disconnect Body Control Module (BCM) connector "B". BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A. Connect jumper wire between ground and terminal No. 50 (Black/White wire) on BCM connector "B". If rear washer motor operates, replace BCM. If rear washer does not operate, go to next step.
3. Do not disconnect jumper wire. Disconnect rear washer pump connector at washer fluid reservoir in engine compartment. Using scan tool in voltmeter mode, measure voltage at terminal No. 1 (Dark Blue wire) on rear washer pump connector. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair open Dark Blue wire.
4. Using scan tool in ohmmeter mode, measure resistance at terminal No. 2 (Black/White wire) on rear washer pump connector. If resistance is less than 5 ohms, replace rear washer pump. If resistance is 5 ohms or greater, repair open Black/White wire.

WINDSHIELD WIPER TEST 14A - REAR WIPER MUX CIRCUIT ERROR

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.

1. Erase trouble code. Turn ignition on. Operate rear wiper for one minute (minimum). Using scan tool read Diagnostic Trouble Codes (DTCs). If rear wiper MUX circuit error code is present, go to next step. If code is not present, system is currently functioning correctly.
2. Disconnect Heater, Ventilation and Air Conditioning (HVAC) control module 21-pin Blue connector (integral with instrument panel control). Using scan tool in ohmmeter mode, measure resistance at terminal No. 21 (Black/Light Green wire) on HVAC connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open Black/Light Green wire.
3. Using scan tool, monitor rear wiper switch voltage. If scan tool displays 5 volts, repair Yellow/White wire between Body Control Module (BCM) terminal No. 38 and HVAC Blue connector, terminal No. 2 for short to battery voltage. If scan tool does not display 5 volts, replace BCM. BCM is located with junction block under driver's side instrument panel. (Scheme 16)in CHIME TEST 2A.

TEST VER-1A - VERIFICATION PROCEDURE

1. Reconnect all previously disconnected components and wiring. Turn 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).
2. Operate system that was malfunctioning to verify correct operation. If system does not operate properly, go to «SYMPTOM ID TEST 1A»(ref-123787-S35836732712001101500000) . If system operates properly, read fault messages using scan tool. If any codes are present, go to «SYMPTOM ID TEST 1A»(ref-123787-S35836732712001101500000) . If no codes are present, repair is complete.

TEST VER-1B - VERIFICATION PROCEDURE

To verify VTSS system operation is correct, ensure all liftgate and doors are closed. Open driver's door. Remove and retain ignition key. Lock doors with power lock system. Close driver's door. VTSS indicator light should flash. If indicator light does not flash, go to VTSS TEST 1A .

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.

NO RESPONSE DIAGNOSIS

BUS FAULT MESSAGES

TEST 2A - NO RESPONSE FROM AIR BAG CONTROL MODULE

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. Using scan tool in voltmeter mode, measure voltage on Air Bag Control Module (ABCM) side of fuse No. 27 (Dark Blue/Yellow wire) in power distribution center. If voltage is 10 volts or less, go to step 7). If voltage is more than 10 volts, go to next step.
2. Disconnect battery and wait 2 minutes. Disconnect ABCM connector. ABCM is located under center of instrument panel. Connect battery. Turn ignition on.
3. Measure voltage on ABCM connector, terminal No. 6 (Light Green/Yellow wire). If voltage is 10 volts or less, go to next step. If voltage is more than 10 volts, repair open Light Green/Yellow wire.
4. Using scan tool in ohmmeter mode, measure resistance on ABCM connector, terminal No. 11 (Black/Light Green wire). If resistance is 15 ohms or more, repair open Black/Light Green wire. If resistance is less than 15 ohms, go to next step.
5. Do not disconnect scan tool from Data Link Connector (DLC). Turn ignition off. Using external ohmmeter, measure resistance of Violet/Brown wire between ABCM 13-pin connector terminal No. 4 and DLC terminal No. 3. If resistance is 5 ohms or more, repair open Violet/Brown wire. If resistance is less than 5 ohms, go to next step.
6. Measure resistance of White/Black wire between ABCM 13-pin connector terminal No. 3 and DLC terminal No. 11. If resistance is 5 ohms or more, repair open White/Black wire. If resistance is less than 5 ohms, go to AIR BAG SYSTEM TEST 15A in AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section.
7. Using scan tool in voltmeter mode, measure voltage on component side of fuse No. 27 in power distribution center. If voltage is 10 volts or less, repair open ignition switch output circuit between fuse and ignition switch. If voltage is more than 10 volts, go to next step.
8. Turn ignition off. Remove ignition switch fuse. Using scan tool in ohmmeter mode, measure resistance on ABCM side of fuse No. 27 (Dark Blue/Yellow wire) in power distribution center. If resistance is 5 ohms or more, replace fuse No. 27. If resistance is less than 5 ohms, go to next step.
9. Disconnect battery and wait 2 minutes. Disconnect ABCM 13-pin connector. Measure resistance on ABCM connector, terminal No. 6 (Light Green/Yellow wire). If resistance is less than 5 ohms, repair Light Green/Yellow wire for short to ground and replace fuse No. 27. If resistance is 5 ohms or more, replace ABCM and fuse No. 27.

TEST 3A - NO RESPONSE FROM BODY CONTROL MODULE

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. If fault message is BATTERY POWER TO MODULE DISCONNECTED, go to «TEST 3C»(ref-123787-S42406921692001101500000) . If no fault message exist, remove and inspect junction block fuses No. 2 and 3. If either fuse is open, go to «TEST 3B»(ref-123787-S15791058452001101500000) . If both fuses are okay, go to next step.
2. Turn ignition off. Disconnect Body Control Module (BCM) connectors. BCM is connected to junction block. Connect jumper wire between ground and BCM Black connector "A", terminal No. 3 (Violet/Brown wire).
3. Turn ignition on. 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/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
4. Move jumper wire to BCM Black connector "A", terminal No. 34 (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, go to next step.
5. Remove jumper wire. Turn ignition off. Using scan tool in ohmmeter mode, measure resistance on BCM Black connector "A", terminal No. 10 (Black/Light Green wire). If resistance is 15 ohms or more, repair open Black/Light Green wire. If resistance is less than 15 ohms, go to next step.
6. Disconnect BCM from junction block. Turn ignition on. Using scan tool in voltmeter mode, measure voltage on terminal No. 8 of junction block internal 23-pin connector. If voltage is more than 10 volts, replace BCM. If voltage is 10 volts or less, go to next step.
7. Measure voltage on terminal No. 30 (Dark Green/Red wire) of junction block Black connector "C". If voltage is more than 10 volts, replace junction block. If voltage is 10 volts or less, repair open Dark Green/Red wire.

TEST 3B - NO RESPONSE FROM BODY CONTROL MODULE

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. Inspect fuse No. 2 (gauge) in junction block. If fuse is okay, go to step 3). If fuse is open, turn ignition off. Replace fuse. Turn ignition on. Inspect fuse No. 2. If fuse is open, go to next step. If fuse is okay, circuit is currently operating correctly.
2. Turn ignition off. Remove Body Control Module (BCM) from junction block. Junction block is located under left side of instrument panel. Replace fuse No. 2. Turn ignition on. Inspect fuse No. 2. If fuse is okay, replace BCM. If fuse is open, repair fused ignition switch output circuit for short to ground. Replace fuse.
3. Turn ignition off. Replace fuse No. 3 (rear wiper) in junction block. Turn ignition on. Inspect fuse No. 3. If fuse is okay, circuit is currently operating correctly. If fuse is open, go to next step.
4. Turn ignition off. Remove BCM from junction block. Replace fuse No. 3. Turn ignition on. Inspect fuse No. 3. If fuse is okay, replace BCM. If fuse is open, repair fused ignition switch output circuit for short to ground. Replace fuse.

TEST 3C - NO RESPONSE FROM BODY CONTROL MODULE

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

Turn ignition off. Remove Body Control Module (BCM) from junction block. Junction block is located under left side of instrument panel. Turn ignition on. Using scan tool in voltmeter mode, measure voltage on junction block internal connector, terminal No. 9. If voltage is more than 10 volts, replace BCM. If voltage is 10 volts or less, replace junction block.

TEST 4A - NO RESPONSE FROM INSTRUMENT CLUSTER

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, read body controller ignition unlock switch status. If scan tool does not display CLOSED, go to «TEST 3A»(ref-123787-S40225623352001101500000) . If scan tool displays CLOSED, go to next step.
2. Disconnect instrument cluster 13-pin connector. Turn ignition on. Using scan tool in voltmeter mode, measure voltage on terminal No. 11 (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.
3. Measure voltage on terminal No. 2 (Pink wire). If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
4. Connect jumper wire between instrument cluster 13-pin connector, terminal No. 10 (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, repair open Violet/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
5. Connect jumper between instrument cluster 13-pin connector, terminal No. 9 (White/Black wire) and ground. 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 instrument cluster circuit board. Using scan tool, recalibrate gauges.

TEST 5A - COMPASS/MINI TRIP MODULE DISPLAYING "NO RESPONSE"

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Disconnect compass/mini trip module 6-pin connector. Using scan tool in ohmmeter mode, measure resistance on terminal No. 3 (Black/Light Green wire). If resistance is 5 ohms or more, repair open Black/Light Green wire. If resistance is less than 5 ohms, go to next step.
2. Turn ignition on. Using scan tool in voltmeter mode, measure voltage on terminal No. 4 (Black/Orange wire). If voltage is 10 volts or less, repair open Black/Orange wire. If voltage is more than 10 volts, go to next step.
3. Connect jumper wire between compass/mini trip module 6-pin connector, terminal No. 1 (White/Black 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 White/Black wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
4. Move jumper wire to terminal No. 6 (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 compass/mini trip module.

TEST 6A - NO RESPONSE FROM POWERTRAIN CONTROL MODULE

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. If engine does not run, see appropriate article in ENGINE PERFORMANCE section. If engine runs, turn ignition off. Disconnect Powertrain Control Module (PCM). PCM is located on left fenderwell, next to power distribution center. Turn ignition on. Connect jumper wire between ground and PCM connector, terminal No. 59 (Violet/Brown wire).
2. 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/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
3. Move jumper wire to terminal No. 60 (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 PCM.

TEST 7A - NO RESPONSE FROM RADIO

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. If radio screen is not blank, go to step 5). If radio screen is blank, remove and inspect radio fuse No. 8 in junction block. If fuse is open, go to «TEST 7B»(ref-123787-S30444357072001101500000) . If fuse is okay, go to next step.
2. Install fuse. Disconnect radio Gray connector. Using scan tool in voltmeter mode, measure voltage on terminal No. 7 (Pink wire). If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
3. Measure voltage on 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.
4. Inspect ground strap and antenna for correct installation. Repair as needed. If ground strap and antenna are okay, replace radio.
5. Disconnect 2-pin CCD BUS connector on back of radio. Connect jumper wire between terminal No. 2 (White/Black 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 White/Black wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
6. 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 7B - NO RESPONSE FROM RADIO

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

Turn ignition off. Disconnect radio Gray connector. Using scan tool in ohmmeter mode, measure resistance on terminal No. 6 (Red/White wire). If resistance is less than 5 ohms, repair Red/White wire for short to ground. Replace fuse No. 11 in junction block. If resistance is 5 ohms or more, replace radio. Replace fuse No. 11.

TEST 8A - NO RESPONSE FROM TRANSMISSION CONTROL MODULE

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. Determine if transmission is operating correctly before proceeding with following test. See Transmission Service & Repair manual as needed.
2. Turn ignition off. Disconnect Transmission Control Module (TCM). TCM is located on right fenderwell, next to washer reservoir. Turn ignition on. Connect jumper wire between ground and TCM connector, terminal No. 43 (Violet/Brown wire).
3. 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/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
4. Move jumper wire to TCM connector 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 TCM.

TEST 9A - NO RESPONSE FROM ANTI-LOCK BRAKE CONTROLLER

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Disconnect anti-lock brake controller connector. Anti-lock brake controller is located under left front of vehicle, behind transaxle. Turn ignition on. Using an external voltmeter, measure voltage on anti-lock brake controller connector terminal No. 23 (White/Pink wire). If voltage is 10 volts or less, repair open White/Pink wire. If voltage is more than 10 volts, go to next step.
2. Measure voltage on anti-lock brake controller connector terminal No. 25 (Red/Dark Green wire). If voltage is 10 volts or less, repair open Red/Dark Green wire. If voltage is more than 10 volts, go to next step.
3. Using an external ohmmeter, measure resistance between anti-lock brake controller connector terminal No. 24 (Black wire) and ground. If resistance is 10 ohms or more, repair open Black wire. If resistance is less than 10 ohms, go to next step.
4. Connect jumper wire between ground and anti-lock brake controller connector, terminal No. 20 (Violet/Brown wire). Turn ignition on. 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/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
5. Move jumper wire to anti-lock brake controller connector, terminal No. 19 (White/Tan wire). Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open White/Tan wire. If scan tool displays BUS SHORT TO GROUND, replace anti-lock brake controller.

TEST 10A - BUS SHORT TO BATTERY

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Disconnect Transmission Control Module (TCM), if equipped. TCM is located next to washer fluid reservoir. 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.
2. Turn ignition off and disconnect Powertrain Control Module (PCM). PCM is located next power distribution center. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to «TEST 10B»(ref-123787-S10938362372001101500000) . If scan tool displays BUS SHORT TO BATTERY, go to next step.
3. Turn ignition off and disconnect CCD radio 2-pin connector. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, isolate CCD radio 2-pin connector and tape to harness. If scan tool displays BUS SHORT TO BATTERY, go to next step.
4. Turn ignition off. Disconnect compass/mini-trip module. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to «TEST 10D»(ref-123787-S21427692712001101500000) . If scan tool displays BUS SHORT TO BATTERY, go to next step.
5. Turn ignition off. Disconnect anti-lock brake controller. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, replace anti-lock brake controller. If scan tool displays BUS SHORT TO BATTERY, go to next step.
6. Turn ignition off. Disconnect instrument cluster. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to «TEST 10E»(ref-123787-S37066237102001101500000) . If scan tool displays BUS SHORT TO BATTERY, go to next step.
7. Turn ignition off. Disconnect Body Control Module (BCM) connectors. BCM is located on back of junction block. Junction block is located under left side of instrument panel. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to «TEST 10C»(ref-123787-S12176261842001101500000) . If scan tool displays BUS SHORT TO BATTERY, go to next step.
8. Turn ignition off and wait 5 minutes. Disconnect Air Bag Control Module (ABCM) 13-pin connector. ABCM is located under center of instrument panel. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, replace ABCM. If scan tool displays BUS SHORT TO BATTERY, go to next step.
9. Turn ignition off. Using scan tool in voltmeter mode, measure voltage on BCM Connector "A", terminal No. 3 (Violet/Brown wire). If voltage is more than 8 volts, repair Violet/Brown wire for short to voltage. If voltage is 8 volts or less, go to next step.
10. Measure voltage on terminal No. 34 (White/Black wire). If voltage is more than 8 volts, repair White/Black wire for short to voltage. If voltage is less than 8 volts, replace scan tool cable or scan tool as necessary.

TEST 10B - BUS SHORT TO BATTERY

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Using scan tool in ohmmeter mode, measure resistance between Powertrain Control Module (PCM) connector terminals No. 44 (Orange wire) and No. 59 (Violet/Brown wire). PCM is located on left inner fenderwell, near battery. If resistance is less than 5 ohms, repair short between Orange wire and Violet/Brown wire. If resistance is 5 ohms or more, go to next step.
2. Measure resistance between PCM connector terminals No. 44 (Orange wire) and No. 60 (White/Black wire). If resistance is less than 5 ohms, repair short between Orange wire and White/Black wire. If resistance is 5 ohms or more, replace PCM.

TEST 10C - BUS SHORT TO BATTERY

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Using external ohmmeter, measure resistance between Body Control Module (BCM) connector "A", terminals No. 3 (Violet/Brown wire) and No. 17 (Red/Yellow wire). If resistance is less than 5 ohms, repair short between Violet/Brown wire and Red/Yellow wire. If resistance is 5 ohms or more, go to next step.
2. Measure resistance between BCM connector terminals No. 17 (Red/Yellow wire) and No. 34 (White/Black wire). If resistance is less than 5 ohms, repair short between Red/Yellow wire and White/Black wire. If resistance is 5 ohms or more, go to next step.
3. Using scan tool in ohmmeter mode, measure resistance on BCM connector "A", terminal No. 10 (Black/Light Green wire). If resistance is 5 ohms or more, repair open Black/Light Green wire. If resistance is less than 5 ohms, replace BCM.

TEST 10D - BUS SHORT TO BATTERY

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

Turn ignition off. Using scan tool in ohmmeter mode, measure resistance on compass/mini-trip computer connector, terminal No. 3 (Black/Light Green wire). If resistance is 5 ohms or more, repair open Black/Light Green wire circuit. If resistance is less than 5 ohms, replace compass/mini-trip computer.

TEST 10E - BUS SHORT TO BATTERY

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

Turn ignition off. Using scan tool in ohmmeter mode, measure resistance on instrument cluster 13-pin connector, terminal No. 7 (Black/Light Green wire). If resistance is 5 ohms or more, repair open Black/Light Green wire circuit. If resistance is less than 5 ohms, replace instrument cluster.

TEST 11A - BUS SHORT TO 5 VOLTS

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Disconnect Transmission Control Module (TCM), if equipped. TCM is located next to washer fluid reservoir. 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.
2. Turn ignition off and disconnect Powertrain Control Module (PCM). PCM is located next power distribution center on left inner fenderwell. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, go to «TEST 11B»(ref-123787-S03179479682001101500000) . If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
3. 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.
4. Turn ignition off. Disconnect compass/mini-trip module. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, replace compass/mini-trip module. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
5. Turn ignition off. Disconnect anti-lock brake controller. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, replace anti-lock brake controller. If scan tool displays BUS SHORT 5 VOLTS, go to next step.
6. Turn ignition off. Disconnect instrument cluster. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, replace instrument cluster. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
7. Turn ignition off. Disconnect Body Control Module (BCM) connectors. BCM is located on back of junction block under left side of instrument panel. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, go to «TEST 11C»(ref-123787-S24022577472001101500000) . If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
8. Turn ignition off and wait 5 minutes. Disconnect Air Bag Control Module (ABCM) 13-pin connector. ABCM is located under center of instrument panel. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, replace ABCM. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
9. Using scan tool in voltmeter mode, measure voltage on BCM Connector "A", terminal No. 3 (Violet/Brown wire). If voltage is more than 4 volts, repair Violet/Brown wire for short to voltage. If voltage is 4 volts or less, go to next step.
10. Measure voltage on terminal No. 34 (White/Black wire). If voltage is more than 4 volts, repair White/Black wire for short to voltage. If voltage is less than 4 volts, replace scan tool cable or scan tool as necessary.

TEST 11B - BUS SHORT TO 5 VOLTS

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Using 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 and Violet/White wire. If resistance is 5 ohms or more, go to next step.
2. 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 more, replace PCM.

TEST 11C - BUS SHORT TO 5 VOLTS

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Using external ohmmeter, measure resistance between Body Control Module (BCM) connector "A", terminal No. 3 (Violet/Brown wire) and connector "B", terminal No. 78 (Light Green/Red wire). If resistance is less than 5 ohms, repair short between Violet/Brown wire and Light Green/Red wire. If resistance is 5 ohms or more, go to next step.
2. Measure resistance between BCM connector "A", terminal No. 34 (White/Black wire) and connector "B", terminal No. 78 (Light Green/Red wire). If resistance is less than 5 ohms, repair short between White/Black wire and Light Green/Red wire. If resistance is 5 ohms or more, go to next step.
3. Measure resistance between BCM connector "A", terminals No. 3 (Violet/Brown wire) and terminal No. 4 (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 more, go to next step.
4. Measure resistance between BCM connector "A", terminals No. 4 (Light Blue wire) and No. 34 (White/Black wire). If resistance is less than 5 ohms, repair short between Light Blue wire and White/Black wire. If resistance is 5 ohms or more, go to next step.
5. Measure resistance between BCM connector "A", terminal No. 3 (Violet/Brown wire) and connector "B", terminal No. 79 (Tan wire). If resistance is less than 5 ohms, repair short between Violet/Brown wire and Tan wire. If resistance is 5 ohms or more, go to next step.
6. Measure resistance between BCM connector "A", terminal No. 34 (White/Black wire) and connector "B", terminal No. 79 (Tan wire). If resistance is less than 5 ohms, repair short between White/Black wire and Tan wire. If resistance is 5 ohms or more, go to next step.
7. Measure resistance between BCM connector "A", terminal No. 3 (Violet/Brown wire) and connector "B", terminal No. 48 (Tan/Red wire). If resistance is less than 5 ohms, repair short between Violet/Brown wire and Tan/Red wire. If resistance is 5 ohms or more, go to next step.
8. Measure resistance between BCM connector "A", terminal No. 34 (White/Black wire) and connector "B", terminal No. 48 (Tan/Red wire). If resistance is less than 5 ohms, repair short between White/Black wire and Tan/Red wire. If resistance is 5 ohms or more, replace BCM.

TEST 12A - BUS SHORT TO GROUND

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

Note. For appropriate wire color tracers (example, Black/*), see WIRING DIAGRAMS .

1. 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-123787-S22541512262001101500000) . If scan tool displays BUS SHORT TO GROUND, go to next step.
2. Turn ignition off. Disconnect Transmission Control Module (TCM), if equipped. TCM is located next to washer fluid reservoir. 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.
3. Turn ignition off and disconnect Powertrain Control Module (PCM). PCM is located next power distribution center on left inner fenderwell. 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.
4. 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.
5. Turn ignition off. Disconnect compass/mini-trip module. Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace compass/mini-trip module. If scan tool displays BUS SHORT TO GROUND, go to next step.
6. Turn ignition off. 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.
7. Turn ignition off. Disconnect anti-lock brake controller. Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace anti-lock brake controller. If scan tool displays BUS SHORT TO GROUND, go to next step.
8. Turn ignition off. Disconnect Body Control Module (BCM) connectors. BCM is located on back of junction block, under left side of instrument panel. Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace BCM. If scan tool displays BUS SHORT TO GROUND, go to next step.
9. Turn ignition off and wait 5 minutes. Disconnect Air Bag Control Module (ABCM) 13-pin connector. ABCM is located under center of instrument panel. 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.
10. Using external ohmmeter, measure resistance between BCM connector "A", terminal No. 3 (Violet/Brown wire) and ground. If resistance is 5 ohms or more, repair White/Black wire for short to ground. If resistance is less than 5 ohms, repair Violet/Brown wire for short to ground.

TEST 13A - BUS (+) & BUS (-) SHORTED TOGETHER

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Disconnect Transmission Control Module (TCM), if equipped. TCM is located next to washer fluid reservoir. 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.
2. Turn ignition off and disconnect Powertrain Control Module (PCM). PCM is located next power distribution center, on left inner fender panel. 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.
3. 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.
4. Turn ignition off. Disconnect compass/mini-trip module. Turn ignition on. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace compass/mini-trip module. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step.
5. Turn ignition off. Disconnect anti-lock brake controller. Turn ignition on. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace anti-lock brake controller. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step.
6. Turn ignition off. 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.
7. Turn ignition off. Disconnect Body Control Module (BCM) connectors. BCM is located on back of junction block, under left side of instrument panel. Turn ignition on. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace BCM. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step.
8. Turn ignition off and wait 5 minutes. Disconnect Air Bag Control Module (ABCM) connector. ABCM is located under center of instrument panel. Turn ignition on. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace ABCM. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step.
9. Turn ignition off. Using external ohmmeter, measure resistance between BCM connector "A", terminals No. 3 (Violet/Brown wire) and No. 34 (White/Black wire). If resistance is 5 ohms or more, replace scan tool cable or scan tool. If resistance is less than 5 ohms, repair Violet/Brown wire for short to White/Black wire ground.

TEST 14A - NO TERMINATION

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Disconnect Body Control Module (BCM). BCM is connected to junction block, under left side of instrument panel. Disconnect BCM connectors and remove from junction block.
2. Using an external ohmmeter, measure resistance between BCM component terminals No. 3 and 34. If resistance is not 100-140 ohms, replace BCM. If resistance is 100-140 ohms, go to next step.
3. Connect jumper wire between ground and BCM connector "A", terminal No. 3 (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, repair open Violet/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
4. Move jumper wire to BCM connector "A", terminal No. 34 (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, go to next step.
5. Disconnect Powertrain Control Module (PCM) connectors. PCM is located next to power distribution center, on left inner fender panel. Using an external ohmmeter, measure resistance between PCM component terminals No. 59 and 60. If resistance is not 100-140 ohms, replace PCM. If resistance is 100-140 ohms, go to next step.
6. 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, repair open Violet/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
7. Move jumper wire to PCM connector, terminal No. 60 (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 scan tool cable or scan tool.

TEST 15A - BUS BIAS LEVEL OR BUS (+/-) OPEN

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

Note. Ignition off during bus test is most common cause for this trouble code.

1. If ignition was off during BUS test, turn ignition on. If ignition was on during BUS test, turn ignition on, engine off. Disconnect scan tool. Using an external voltmeter, measure voltage between ground and Data Link Connector (DLC) terminal No. 3 (Violet/Brown 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.
2. Measure voltage between ground and DLC terminal No. 11 (White/Black 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.
3. Connect scan tool to DLC. Disconnect Body Control Module (BCM) connectors. BCM is connected to junction block, under left side of instrument panel. Using an external ohmmeter, measure resistance between BCM component terminals No. 3 and 34. If resistance is not 100-140 ohms, replace BCM. If resistance is 100-140 ohms, go to next step.
4. Connect jumper wire between ground and BCM connector "A", terminal No. 3 (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, repair open Violet/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
5. Move jumper wire to BCM connector "A", terminal No. 34 (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, go to next step.
6. Disconnect Powertrain Control Module (PCM) connectors. PCM is located next to power distribution center, on left inner fender panel. Using an external ohmmeter, measure resistance between PCM component terminals No. 59 and 60. If resistance is not 100-140 ohms, replace PCM. If resistance is 100-140 ohms, go to next step.
7. 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, repair open Violet/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
8. Move jumper wire to PCM connector, terminal No. 60 (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, go to next step.
9. Using an external ohmmeter, measure resistance between ground and PCM connector, terminal No. 59 (Violet/Brown wire). If resistance is less than 50 ohms, repair Violet/Brown wire for short to ground. If resistance is 50 ohms or more, go to next step.
10. Measure resistance between ground and PCM connector, terminal No. 60 (White/Black wire). If resistance is less than 50 ohms, repair White/Black wire for short to ground. If resistance is 50 ohms or more, replace BCM.

TEST 16A - NO BUS BIAS

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

Note. Ignition off during bus test is most common cause for this trouble code.

1. If ignition was off during BUS test, turn ignition on. If ignition was on during BUS test, turn ignition on, engine off. Disconnect scan tool. Using an external voltmeter, measure voltage between ground and Data Link Connector (DLC) terminal No. 3 (Violet/Brown 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.
2. Measure voltage between ground and DLC terminal No. 11 (White/Black 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.
3. Turn ignition off. Disconnect Body Control Module (BCM) connectors. Using external ohmmeter, measure resistance between BCM component terminals No. 3 and 34. If resistance is not 100-140 ohms, replace BCM. If resistance is 100-140 ohms, go to next step.
4. Connect jumper wire between ground and BCM connector "A", terminal No. 3 (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, repair open Violet/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
5. Move jumper wire to BCM connector "A", terminal No. 34 (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, go to next step.
6. Disconnect Powertrain Control Module (PCM) connectors. PCM is located next to power distribution center, on left inner fender panel. Using external ohmmeter, measure resistance between PCM component terminals No. 59 and 60. If resistance is not 100-140 ohms, replace PCM. If resistance is 100-140 ohms, go to next step.
7. Using scan tool in voltmeter mode, measure voltage on terminal No. 9 of junction block internal 23-pin connector, under left side of instrument panel. If voltage is 10 volts or less, repair fused B+ circuit as needed. If voltage is more than 10 volts, go to next step.
8. Measure voltage on terminal No. 8 of junction block internal 23-pin connector. 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.
9. Using scan tool in ohmmeter mode, measure resistance on BCM connector "A", terminal No. 10 (Black/Light Green wire). If resistance is 5 ohms or more, repair open Black/Light Green wire. If resistance is less than 5 ohms, replace BCM.

TEST 17A - NOT RECEIVING BUS MESSAGE CORRECTLY

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Perform TEST VER-2A - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Disconnect Transmission Control Module (TCM), if equipped. TCM is located next to washer fluid reservoir. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGE CORRECTLY, replace TCM. If scan tool displays NOT RECEIVING BUS MESSAGE CORRECTLY, go to next step.
2. Turn ignition off and disconnect Powertrain Control Module (PCM). PCM is located next power distribution center, on left inner fender panel. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGE CORRECTLY, replace PCM. If scan tool displays NOT RECEIVING BUS MESSAGE CORRECTLY, go to next step.
3. Turn ignition off and disconnect CCD radio 2-pin connector. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGE CORRECTLY, isolate CCD radio 2-pin connector and tape to harness. If scan tool displays NOT RECEIVING BUS MESSAGE CORRECTLY, go to next step.
4. Turn ignition off. Disconnect compass/mini-trip module. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGE CORRECTLY, replace compass/mini-trip module. If scan tool displays NOT RECEIVING BUS MESSAGE CORRECTLY, go to next step.
5. Turn ignition off. Disconnect instrument cluster. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGE CORRECTLY, replace instrument cluster. If scan tool displays NOT RECEIVING BUS MESSAGE CORRECTLY, go to next step.
6. Turn ignition off and wait 5 minutes. Disconnect Air Bag Control Module (ABCM) 13-pin connector. ABCM is located under center of instrument panel. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGE CORRECTLY, replace ABCM. If scan tool displays NOT RECEIVING BUS MESSAGE CORRECTLY, go to next step.
7. Turn ignition off. Disconnect Body Control Module (BCM) connectors. BCM is located on back of junction block, under left side of instrument panel. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGE CORRECTLY, replace BCM. If scan tool displays NOT RECEIVING BUS MESSAGE CORRECTLY, replace scan tool cable or scan tool.

TEST VER-2A - VERIFICATION PROCEDURE

1. Reconnect all previously disconnected components and wiring. Turn 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).
2. Operate system that was malfunctioning to verify correct operation. If system does not operate properly, go to «SYMPTOM ID TEST 1A»(ref-123787-S35836732712001101500000) in DIAGNOSTIC TESTING. If system operates properly, read fault messages using scan tool. If any codes are present, go to «SYMPTOM ID TEST 1A»(ref-123787-S35836732712001101500000) in DIAGNOSTIC TESTING. If no codes are present, repair is complete.

BCM Wiring Diagram (1 Of 2). Scheme 22

BCM Wiring Diagram (2 Of 2). Scheme 23