Body Control Computer: Diagnosis Dodge Intrepid I

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»(ref-138303-S35968194562002040400000) 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. The «VEHICLE COMMUNICATIONS TESTS»(ref-138303-S02939324142002040400000) should only be used when instructed to do so by another test. Always start at «SYMPTOM ID TEST 1A»(ref-138303-S35968194562002040400000) .
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 .

1. Connect scan tool to Data Link Connector (DLC). DLC is located under instrument cluster, right of steering column. If scan tool screen is blank, go to «TEST 115A»(ref-138303-S16994948052002040400000) . If scan tool is not blank, go to next step.
2. Turn ignition on. Using scan tool, select Body System. If scan tool does not display BUS OPERATIONAL, see «VEHICLE COMMUNICATIONS TESTS»(ref-138303-S02939324142002040400000) . If scan tool displays BUS OPERATIONAL, go to next step.
3. Select BODY COMPUTER. If scan tool does not display BUS OPERATIONAL, see «VEHICLE COMMUNICATIONS TESTS»(ref-138303-S02939324142002040400000) . If scan tool displays BUS OPERATIONAL, go to next step.
4. If scan tool displays TURN IGNITION ON, go to «TEST 112A»(ref-138303-S20922198162002040400000) . If scan tool does not display TURN IGNITION ON, go to next step.
5. If scan tool displays NO RESPONSE, go to «TEST 113A»(ref-138303-S32045693792002040400000) . If scan tool does not display NO RESPONSE, go to next step.
6. Using scan tool, select INPUT/OUTPUT and read IGN RUN/START status. If scan tool displays OPEN, go to «TEST 112A»(ref-138303-S20922198162002040400000) . If scan tool does not display OPEN, go to next step.
7. Using scan tool, select READ DTCS. If any fault messages are displayed, go to «SYMPTOM ID TEST 1B»(ref-138303-S09392184722002040400000) . If no fault messages are displayed, see SYSTEM DIAGNOSTIC TEST DIRECTORY table for specific system diagnosis. When diagnosing a vehicle with many apparent failures, start at top of table and perform indicated tests. Failures may occur separately or in various combinations. After repairs, ensure failure or group of failures have been corrected.

SYSTEM DIAGNOSTIC TEST DIRECTORY

SYMPTOM ID TEST 1B - IDENTIFYING DIAGNOSTIC TROUBLE CODES

Note. TEST 2A through TEST 28A are related to A/C-heater systems. For A/C-heater system test procedures, see A/C-HEATER SYSTEM article in the AIR CONDITIONING & HEAT section.

If scan tool displays fault messages in SYMPTOM ID TEST 1A, record messages displayed and perform appropriate test(s) listed in SCAN TOOL MESSAGE DIRECTORY table.

SCAN TOOL MESSAGE DIRECTORY

TEST 29A - DIAGNOSING CHIME SYSTEM

Note. TEST 2A through TEST 28A are related to A/C-heater systems. For A/C-heater system test procedures, see A/C-HEATER SYSTEM article in the AIR CONDITIONING & HEAT section.

Diagnosis of chime (warning) system is separated into 4 categories. Identify problem area(s) listed in TEST 29A DIAGNOSTIC DIRECTORY table and perform the indicated test(s).

TEST 29A DIAGNOSTIC DIRECTORY

TEST 30A - CHIME INOPERATIVE AT ALL TIMES

Note. Perform TEST 29A before proceeding with this test. For connector terminal Identification, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition on. Ensure all doors are closed. Using scan tool, actuate chime. If chime does not sound, replace Body Control Module (BCM). BCM is located behind right kick panel. If chime sounds, go to next step.
2. Using scan tool, stop actuating chime. Turn ignition off. Remove key from ignition switch. Turn headlights on and open left front door. If chime does not sound, go to «TEST 31A»(ref-138303-S24768602952002040400000) . If chime sounds, go to next step.
3. Turn headlights off. Ensure left front seat belt is unfastened. Close left front door. Insert key in ignition switch. Turn ignition on. If chime does not sound, go to «TEST 32A»(ref-138303-S41643276052002040400000) . If chime sounds, go to next step.
4. Turn ignition off. Leave key in ignition switch. Open left front door. If chime does not sound, go to «TEST 33A»(ref-138303-S05822410472002040400000) . If chime sounds, system is currently operating properly.

TEST 31A - CHIME INOPERATIVE WITH EXTERNAL LAMPS ON

Note. Perform TEST 29A before proceeding with this test. For connector terminal Identification, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn headlights on. Using scan tool, read headlight status. If scan tool displays HEADLAMPS ON, go to step 4). If scan tool does not display HEADLAMPS ON, go to next step.
2. Turn headlights off. Turn ignition off. Disconnect Body Control Module (BCM) Bone connector. BCM is located behind right kick panel. Turn headlights on. Go to next step.
3. Using scan tool in voltmeter mode, measure voltage at terminal No. 23 (Black/Yellow wire) on BCM Bone connector. If voltage is more than 10 volts, replace BCM. If voltage is 10 volts or less, repair open Black/Yellow wire.
4. Ensure left front door is open. Using scan tool, read left front door ajar switch status. If scan tool displays LFDOOR AJAR: CLOSED, go to «TEST 39A»(ref-138303-S05134413122002040400000) . If scan tool does not display LFDOOR AJAR: CLOSED, replace BCM.

TEST 32A - CHIME INOPERATIVE WITH SEAT BELT UNFASTENED

Note. Perform TEST 29A before proceeding with this test. For connector terminal Identification, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Ensure left front seat belt is unfastened and fully retracted. Using scan tool, read seat belt switch status. If scan tool does not display SEAT BELT: CLOSED, go to «TEST 72A»(ref-138303-S19644544562002040400000) . If scan tool displays SEAT BELT: CLOSED, go to next step.
2. Fasten left front seat belt. If scan tool does not display SEAT BELT: OPEN, go to «TEST 71A»(ref-138303-S36773092442002040400000) . If scan tool displays SEAT BELT: OPEN, replace BCM.

TEST 33A - CHIME INOPERATIVE WITH KEY IN IGNITION

Note. Perform TEST 29A before proceeding with this test. For connector terminal Identification, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition on. Open left front door. Using scan tool, read left front door ajar status. If scan tool does not display LF DOOR AJAR: CLOSED, go to «TEST 39A»(ref-138303-S05134413122002040400000). If scan tool displays LF DOOR AJAR: CLOSED, go to next step.
2. Using scan tool, read key in ignition status. If scan tool displays KEY IN IGN: CLOSED, replace Body Control Module (BCM). If scan tool does not display KEY IN IGN: CLOSE, go to next step.
3. Disconnect ignition switch connector. (Scheme 17) Using scan tool in ohmmeter mode, measure resistance at terminal No. 4 (Black wire) on ignition switch connector. If resistance is more than 5 ohms, repair open Black wire. If resistance is 5 ohms or less, go to next step.
4. Connect jumper wire between terminals No. 4 (Black wire) and No. 6 (Light Blue wire) on ignition switch connector. (Scheme 17) 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 BCM connectors. DO NOT disconnect connectors. Backprobe jumper wire between terminal No. 20 (Light Blue wire) on BCM Bone connector and ground. Using scan tool, read key in ignition status. If scan tool displays KEY IN IGN: CLOSED, repair open Light Blue wire. If scan tool does not display KEY IN IGN: CLOSED, replace BCM.

Locating Ignition Switch Connector. Scheme 17

TEST 34A - DIAGNOSING COURTESY LAMP CIRCUIT

Diagnosis of the courtesy lamp system is separated into 8 categories. Identify problem area(s) listed in TEST 34A DIAGNOSTIC DIRECTORY table and perform the indicated test(s).

TEST 34A DIAGNOSTIC DIRECTORY

TEST 35A - COURTESY LAMP SYSTEM & POWER SUPPLY

Note. Perform TEST 34A before proceeding with this test. For connector terminal Identification, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, actuate courtesy lamps. If courtesy lamps illuminate, go to step 6). If courtesy lamps do not illuminate, go to next step.
2. Using scan tool, stop courtesy lamps actuation. Turn ignition off. Disconnect Body Control Module (BCM) Bone connector. BCM is located behind right kick panel. Go to next step.
3. Using scan tool in voltmeter mode, measure voltage at terminal No. 19 (Pink wire) on BCM Bone connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
4. Using scan tool in voltmeter mode, measure voltage at terminal No. 12 (Yellow wire) on BCM Bone connector. If voltage is more than 10 volts, replace BCM. If voltage is 10 volts or less, go to next step.
5. Disconnect any inoperative lamp assembly. Using scan tool in voltmeter mode, measure voltage at Pink wire on courtesy lamp assembly connector. If voltage is more than 10 volts, repair open Yellow wire between courtesy light and BCM. If voltage is 10 volts or less, repair open Pink wire.
6. Using scan tool, stop courtesy lamp actuation. Open left front door. Using scan tool, read left front door ajar switch status. If scan tool displays LFDOOR AJAR: CLOSED, replace body control module. If scan tool does not display LFDOOR AJAR: CLOSED, go to «TEST 39A»(ref-138303-S05134413122002040400000) .

TEST 35B - COURTESY LAMP OUTPUT FAILURE

Note. Perform SYMPTOM ID TEST 1B - IDENTIFYING DIAGNOSTIC TROUBLE CODES before proceeding with this test. For connector terminal Identification, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect courtesy lamp at driver's door. Remove fuse No. 13 at junction block. Using external voltmeter, measure voltage between ground and terminal No. 1 (Yellow wire) on courtesy lamp connector. Go to next step.
2. If voltage is more than 10 volts, repair Yellow wire for short to battery voltage. If voltage is 10 volts or less, replace body control module.

TEST 36A - ONE INOPERATIVE COURTESY LAMP

Note. Perform TEST 34A before proceeding with this test. For connector terminal Identification, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Remove inoperative courtesy lamp. If lamp is open, replace lamp. If lamp is okay, disconnect inoperative lamp assembly. Go to next step.
2. Using scan tool in voltmeter mode, measure voltage at Pink wire on lamp assembly connector. If voltage is more than 10 volts, repair open ground circuit of inoperative lamp assembly. If voltage is 10 volts or less, repair open Pink wire.

TEST 37A - COURTESY LAMPS ON AT ALL TIMES

Note. Perform TEST 34A or TEST 53A before proceeding with this test. For connector terminal Identification, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Ensure all doors are aligned correctly against switches. If doors are misaligned or misadjusted, align or adjust door(s) as necessary. Ensure courtesy lamp switch (located next to headlight switch) is off. Ensure all doors are closed. Go to next step.
2. Using scan tool, read left front door ajar switch status. If scan tool displays LFDOOR AJAR: CLOSED, go to «TEST 39B»(ref-138303-S10892539412002040400000). If scan tool does not display LFDOOR AJAR: CLOSED, go to next step.
3. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, go to «TEST 40B»(ref-138303-S01955053742002040400000). If scan tool does not display DOOR AJAR: CLOSED, go to next step.
4. Using scan tool, read dome lamp switch status. If scan tool displays DOME LAMP SW: CLOSED, go to «TEST 38B»(ref-138303-S20397644352002040400000). If scan tool does not display DOME LAMP SW: CLOSED, check if vehicle is equipped with Remote Keyless Entry (RKE) module. (Scheme 18) If vehicle is equipped with RKE module, go to step 6). If vehicle is not equipped with RKE module, go to next step.
5. Turn ignition off. Disconnect Body Control Module (BCM) connectors. BCM is located behind right kick panel. If courtesy lamps go off, replace BCM. If courtesy lamps remain on, repair short to ground in Yellow wire between courtesy lights and terminal No. 12 on BCM Bone connector.
6. Ensure all doors are closed. Turn ignition off. Disconnect RKE module connector. If courtesy lamps go off, replace RKE module. If courtesy lamps remain on, go to next step.
7. Disconnect Body Control Module (BCM) Gray connector. BCM is located behind right kick panel. If courtesy lamps go off, repair short to ground in White wire between RKE module and BCM Gray connector. If courtesy lamps remain on, go to next step.
8. Disconnect BCM Bone connector. If courtesy lamps go off, replace BCM. If courtesy lamps remain on, repair short to ground in Yellow wire between courtesy lights and terminal No. 12 on BCM Bone connector.

Locating RKE Module. Scheme 18

TEST 38A - OPEN COURTESY LAMP SWITCH CIRCUIT

Note. Perform TEST 34A before proceeding with this test. For connector terminal Identification, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn courtesy lamp dash switch on. Using scan tool, read dome lamp switch status. If scan tool displays DOME LAMP SW: CLOSED, replace Body Control Module (BCM). BCM is located behind right kick panel. If scan tool does not display DOME LAMP SW: CLOSED, go to next step.
2. Disconnect headlight switch 8-pin connector from behind switch. Connect jumper wire between courtesy lamp switch 8-pin connector terminals No. 2 (Black wire) and No. 3 (Yellow/Red wire). Using scan tool, read dome lamp switch status. If scan tool displays DOME LAMP SW: CLOSED, replace courtesy lamp dash switch. If scan tool does not display DOME LAMP SW: CLOSED, go to next step.
3. Disconnect jumper wire. Connect jumper wire between headlight switch 8-pin connector terminal No. 3 (Yellow/Red wire) and ground. Using scan tool, read dome lamp switch status. If scan tool displays DOME LAMP SW: CLOSED, repair open Black wire. If scan tool does not display DOME LAMP SW: CLOSED, go to next step.
4. Disconnect jumper wire. Access BCM connectors. Connect jumper wire between ground and BCM Gray connector terminal No. 11 (Yellow/Red wire). Using scan tool, read courtesy lamp switch status. If scan tool displays DOME LAMP SW: CLOSED, repair open Yellow/Red wire. If scan tool does not display DOME LAMP SW: CLOSED, replace BCM.

TEST 38B - SHORTED COURTESY LAMP SWITCH CIRCUIT

Note. Perform TEST 37A before proceeding with this test. For connector terminal Identification, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect headlight switch 8-pin connector. Using scan tool, read dome lamp switch status. If scan tool does not display DOME LAMP SW: CLOSED, replace courtesy lamp dash switch. If scan tool displays DOME LAMP SW: CLOSED, go to next step.
2. Disconnect Body Control Module (BCM) Gray connector. BCM is located behind right kick panel. Using scan tool in ohmmeter mode, measure resistance on BCM Gray connector terminal No. 11 (Yellow/Red wire). If resistance is less than 5 ohms, repair short to ground in Yellow/Red wire. If resistance is 5 ohms or greater, replace BCM.

TEST 39A - OPEN LEFT FRONT DOOR AJAR CIRCUIT

Note. Perform TEST 31A , 33A, 34A or 93A before proceeding with this test. For connector terminal Identification, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect left front door ajar switch connector. Inspect left front door ajar switch connector ground strap for damage or corrosion. Repair ground strap as necessary. If ground strap is okay, go to next step.
2. Connect jumper wire between ground and Tan wire on left front door ajar switch connector. Using scan tool, read left front door ajar switch status. If scan tool displays LFDOOR AJAR: CLOSED, replace left front door ajar switch. If scan tool does not display LFDOOR AJAR CLOSED, go to next step.
3. Disconnect jumper wire. Gain access to Body Control Module (BCM). BCM is located behind right kick panel. Connect jumper wire between ground and terminal No. 6 (Tan wire) on BCM Gray connector. Using scan tool, read left front door ajar switch status. If scan tool displays LFDOOR AJAR: CLOSED, repair open Tan wire. If scan tool does not display LFDOOR AJAR: CLOSED, replace BCM.

TEST 39B - SHORTED LEFT FRONT DOOR AJAR CIRCUIT

Note. Perform TEST 37A or 94A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect left front door ajar switch connector. Using scan tool, read left front door ajar switch status. If scan tool does not display LF DOOR AJAR: CLOSED, replace left front door switch. If scan tool displays LF DOOR AJAR: CLOSED, go to next step.
2. Gain access to Body Control Module (BCM). BCM is located behind right kick panel. Disconnect BCM Gray connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 6 (Tan wire) on BCM Gray connector. If resistance is less than 5 ohms, repair short to ground in Tan wire. If resistance is 5 ohms or greater, replace BCM.

TEST 40A - RIGHT FRONT DOOR AJAR CIRCUIT

Note. Perform TEST 34A or 93A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect right front door ajar switch connector. Check right front door ajar switch connector ground strap for damage or corrosion. Repair ground strap as necessary. If ground strap is okay, go to next step.
2. Connect jumper wire between ground and Tan/Red wire on right front door ajar switch connector. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, replace right front door ajar switch. If scan tool does not display DOOR AJAR: CLOSED, go to next step.
3. Disconnect jumper wire. Gain access to Body Control Module (BCM). BCM is located behind right kick panel. Connect jumper wire between ground and terminal No. 3 Tan/Red wire on BCM Gray connector. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, repair open Tan/Red wire. If scan tool does not display DOOR AJAR: CLOSED, replace BCM.

TEST 40B - SHORTED DOOR AJAR CIRCUITS

Note. Perform TEST 37A or 94A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect right front door ajar switch connector. Using scan tool, read door ajar switch status. If scan tool does not display DOOR AJAR: CLOSED, replace right front door switch. If scan tool displays DOOR AJAR: CLOSED, go to next step.
2. Disconnect right rear door ajar switch connector. Using scan tool, read door ajar switch status. If scan tool does not display DOOR AJAR: CLOSED, replace right rear door switch. If scan tool displays DOOR AJAR: CLOSED, go to next step.
3. Disconnect left rear door ajar switch connector. Using scan tool, read door ajar switch status. If scan tool does not display DOOR AJAR: CLOSED, replace left rear door switch. If scan tool displays DOOR AJAR: CLOSED, go to next step.
4. Gain access to Body Control Module (BCM). BCM is located behind right kick panel. Disconnect BCM Gray connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 3 (Tan/Red wire) on BCM Gray connector. If resistance is less than 5 ohms, repair short to ground in Tan/Red wire. If resistance is 5 ohms or greater, replace BCM.

TEST 41A - LEFT REAR DOOR AJAR CIRCUIT

Note. Perform TEST 34A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect left rear door ajar switch connector. Check left rear door ajar switch connector ground strap for damage or corrosion. Repair ground strap as necessary. If ground strap is okay, go to next step.
2. Connect jumper wire between ground and Tan/Red wire on left rear door ajar switch connector. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, replace left rear door ajar switch. If scan tool does not display DOOR AJAR: CLOSED, go to next step.
3. Disconnect jumper wire. Gain access to Body Control Module (BCM). BCM is located behind right kick panel. Connect jumper wire between ground and terminal No. 3 (Tan/Red wire) on BCM Gray connector. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, repair open Tan/Red wire. If scan tool does not display DOOR AJAR: CLOSED, replace BCM.

TEST 42A - RIGHT REAR DOOR AJAR CIRCUIT

Note. Perform TEST 34A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect right rear door ajar switch connector. Check right rear door ajar switch connector ground strap for damage or go to next step.
2. Connect jumper wire between ground and Tan/Red wire on right rear door ajar switch connector. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, replace right rear door ajar switch. If scan tool does not display DOOR AJAR: CLOSED, go to next step.
3. Disconnect jumper wire. Gain access to Body Control Module (BCM). BCM is located behind right kick panel. Connect jumper wire between ground and terminal No. 3 (Tan/Red wire) on BCM Gray connector. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, repair open Tan/Red wire. If scan tool does not display DOOR AJAR: CLOSED, replace BCM.

TEST 43A - IDENTIFYING VEHICLE HEADLIGHT SYSTEM

Automatic (AUTO) headlight system is identified by an "A" located next to headlight switch. If vehicle is not equipped with AUTO headlight system, go to TEST 44A . If vehicle is equipped with AUTO headlight system, go to TEST 47A .

TEST 44A - DIAGNOSING HEADLIGHT TIME DELAY SYSTEM PROBLEMS (WITHOUT AUTO HEADLIGHTS)

Diagnosis of the headlight time delay system is separated into 2 categories. Identify problem area(s) listed in TEST 44A DIAGNOSTIC DIRECTORY table and perform the indicated test(s).

TEST 44A DIAGNOSTIC DIRECTORY

TEST 45A - HEADLIGHTS WILL NOT TURN OFF

Note. Perform TEST 44A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect headlight switch 8-pin connector from behind switch. If headlights go off, replace headlight switch. If headlights do not go off, go to next step.
2. Turn ignition off. Disconnect Body Control Module (BCM) connectors. BCM is located behind right kick panel. If headlights go off, replace BCM. If headlights do not go off, go to next step.
3. Disconnect headlight time delay relay from junction block. (Scheme 19) Junction block is located behind end cover, on left side of instrument panel. If headlights do not go off, repair short to battery voltage in Light Green wire between fuse No. 5 and headlight switch. If headlights go off, go to next step.
4. Using scan tool in ohmmeter mode, measure resistance of headlight delay relay connector terminal "E" (Red/Dark Blue wire). (Scheme 19) If resistance is less than 5 ohms, repair short to ground in Red/Dark Blue wire. If resistance is more than 5 ohms, replace headlight delay relay.

Identifying Fuses & Relays. Scheme 19

TEST 46A - HEADLIGHT TIME DELAY WILL NOT TURN ON

Note. Perform TEST 44A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition on. Using scan tool, actuate headlight time delay relay. If headlights do not toggle on and off, go to «TEST 46B»(ref-138303-S03035220452002040400000). If headlights toggle on and off, go to next step.
2. Using scan tool, stop headlight time delay relay actuation. Turn headlight switch on. If headlights do not come on, repair open Light Green (headlight switch output) wire. If headlights come on, go to next step.
3. Using scan tool, read headlight switch status while turning headlight switch off then back on. If scan tool reading corresponds with headlight switch position, HEADLAMPS OFF (switch off) then HEADLAMPS ON (switch on), replace Body Control Module (BCM). BCM is located behind right kick panel. If scan tool reading does not correspond to headlight switch position, go to next step.
4. Remove fuse No. 5 from junction block. (Scheme 19) Junction block is located behind end cover, on left side of instrument panel. Using scan tool in voltmeter mode, measure voltage at headlight switch output terminal (Light Green wire) on fuse No. 5 connector. If voltage is 10 volts or less, repair open Light Green wire. If voltage is more than 10 volts, go to next step.
5. Turn headlight switch off. Inspect fuse No. 5. If fuse is open, go to step 7). If fuse is okay, turn ignition off. Disconnect BCM connectors. Turn headlight switch on. Go to next step.
6. Using scan tool in voltmeter mode, measure voltage at terminal No. 3 (Red/Light Green wire) on BCM Bone connector. If voltage is 10 volts or less, repair open Red/Light Green wire between fuse No. 5 and BCM. If voltage is more than 10 volts, replace BCM.
7. Turn ignition off. Disconnect Body Control Module (BCM) connectors. BCM is located behind right kick panel. Using scan tool in ohmmeter mode, measure resistance at terminal No. 3 (Red/Light Green wire) on BCM Bone connector. If resistance is less than 5 ohms, repair short to ground in Red/Light Green wire and replace fuse No. 5. If resistance is 5 ohms or greater, replace BCM and replace fuse No. 5.

TEST 46B - HEADLIGHT TIME DELAY WILL NOT TURN ON

Note. Perform TEST 46A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, stop headlight relay actuation. Turn ignition off. Disconnect Body Control Module (BCM) connectors. BCM is located behind right kick panel. Connect jumper wire between ground and terminal No. 2 (Red/Dark Blue wire) on BCM Gray connector. If headlights illuminate, replace BCM. If headlights do not illuminate, go to next step.
2. Disconnect jumper wire. Remove headlight time delay relay from junction block. (Scheme 19) Junction block is located behind end cover, on left side of instrument panel. Using scan tool in voltmeter mode, measure voltage at terminal "A" (Red/White wire) on headlight time delay relay socket. If voltage is 10 volts or less, repair open Red/White wire. If voltage is more than 10 volts, go to next step.
3. Using scan tool in voltmeter mode, measure voltage at terminal "C" (Red/White wire) on headlight time delay relay socket. If voltage is 10 volts or less, repair open Red/White wire. If voltage is more than 10 volts, go to next step.
4. Connect jumper wire between terminals "A" (Red/White wire) and "B" (Light Green wire) on headlight time delay relay socket. If headlights do not illuminate, repair open Light Green wire. If headlights illuminate, go to next step.
5. Disconnect jumper wire. Using an external ohmmeter, measure resistance between terminal "E" on headlight time delay relay socket and terminal No. 2 (Red/Dark Blue wire) on BCM Gray connector. If resistance is 5 ohms or greater, repair open Red/Dark Blue wire. If resistance is less than 5 ohms, replace headlight time delay relay.

TEST 47A - IDENTIFYING HEADLIGHT SYSTEM PROBLEMS (WITH AUTO HEADLIGHT SYSTEM)

Note. Automatic (AUTO) headlight system is identified by an "A" located next to headlight switch. AUTO headlight system will operate only if headlight switch is in "A" position. Headlight time delay will operate only if ignition switch is turned off while headlights are still on and are turned off within 45 seconds.

Diagnosis of AUTO headlight system is separated into 7 categories. Identify problem area(s) listed in TEST 47A DIAGNOSTIC DIRECTORY table and perform the indicated test(s).

TEST 47A DIAGNOSTIC DIRECTORY

TEST 48A - HEADLIGHT & PARKING LAMPS INOPERATIVE IN AUTO MODE

Note. Perform TEST 47A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn headlight switch on. If headlights do not illuminate, repair headlights as necessary. If headlights illuminate, go to next step. NOTE: TEST 2A through TEST 24A are related to Automatic Temperature Control (ATC) system. For automatic A/C-heater system test procedures, see A/C-HEATER SYSTEM article in the AIR CONDITIONING & HEAT section.
2. Turn headlight switch off. Using scan tool, read DTCs. See «DIAGNOSTIC PROCEDURE»(ref-138303-S39166835342002040400000). If scan tool displays ATC SUN LOAD SENSOR FAILURE, go to TEST 14A in A/C-HEATER SYSTEM article in the AIR CONDITIONING & HEAT section. If scan tool does not display ATC SUN SENSOR LOAD FAILURE, go to next step.
3. Using scan tool, actuate headlight relay. If headlights do not toggle on and off, go to step 7). If headlights toggle on and off, go to next step.
4. Using scan tool, stop headlight relay actuation. Turn headlight switch to "A" position. Using scan tool, read AUTO headlight status. If scan tool displays AUTO HEADLIGHT STATE: ON, go to «TEST 48B»(ref-138303-S27990791542002040400000). If scan tool does not display AUTO HEADLIGHT STATE: ON, go to next step.
5. Ensure headlight switch is in "A" position. Remove headlight switch from dash. Leave headlight switch connectors connected. Using scan tool in voltmeter mode, measure voltage at terminal No. 1 (Yellow wire) on headlight switch 8-pin connector. If voltage is 10 volts or less, replace headlight switch. If voltage is more than 10 volts, go to next step.
6. Turn ignition off. Disconnect Body Control Module (BCM) Black connector. BCM is located behind right kick panel. Ensure headlight switch is in "A" position. Using scan tool in voltmeter mode, measure voltage at terminal No. 11 (Yellow wire) on BCM Black connector. If voltage is 10 volts or less, repair open Yellow wire. If voltage is more than 10 volts, replace BCM.
7. Using scan tool, stop headlight relay actuation. Turn ignition off. Disconnect Body Control Module (BCM) Gray connector. BCM is located behind right kick panel. Connect jumper wire between ground and terminal No. 2 (Red/Dark Blue wire) on BCM Gray connector. If headlights illuminate, replace BCM. If headlights do not illuminate, go to next step.
8. Disconnect jumper wire. Disconnect headlight delay relay from junction block. (Scheme 19) Junction block is located behind end cover, on left side of instrument panel. Using scan tool in voltmeter mode, measure voltage at terminal "A" (Red/White wire) on headlight delay relay socket. If voltage is 10 volts or less, repair open Red/White wire. If voltage is more than 10 volts, go to next step.
9. Using scan tool in voltmeter mode, measure voltage at terminal "C" (Red/White wire) headlight delay relay socket. If voltage is 10 volts or less, repair open Red/White wire. If voltage is more than 10 volts, go to next step.
10. Connect jumper wire between terminals "A" (Red/White wire) and "B" (Light Green wire) on headlight delay relay socket. If headlights do not illuminate, repair open Light Green wire. If headlights illuminate, go to next step.
11. Disconnect jumper wire. Using an external ohmmeter, measure resistance between terminal "E" on headlight delay relay socket and terminal No. 2 (Red/Dark Blue wire) on BCM Gray connector. If resistance is 5 ohms or greater, repair open Red/Dark Blue wire. If resistance is less than 5 ohms, replace headlight delay relay.

TEST 48B - AUTO HEADLIGHT SUN SENSOR INPUT CIRCUIT

Note. Perform TEST 47A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Cover sun sensor. Sun sensor is located at center of upper dash. Using scan tool, read auto headlight sensor voltage. If scan tool displays more than 4.8 volts, go to step 4). If scan tool displays 4.8 volts or less, go to next step.
2. Disconnect sun sensor connector. For dash removal and installation procedure, see appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. Using scan tool, read auto headlight sensor voltage. If scan tool displays AUTO HEADLIGHT SENSOR: 5.0V, replace sun sensor. If scan tool does not display AUTO HEADLIGHT SENSOR: 5.0V, go to next step.
3. Turn ignition off. Disconnect Body Control Module (BCM) Gray connector. BCM is located behind right kick panel. Using scan tool in ohmmeter mode, measure resistance at terminal No. 20 (Dark Blue/Red wire) on BCM Gray connector. If resistance is less than 5 ohms, repair short to ground in Dark Blue/Red wire. If resistance is 5 ohms or greater, replace BCM.
4. Using scan tool in monitors mode, read ENGINE INFO. If scan tool displays NR (no response), go to «TEST 114A»(ref-138303-S27816358042002040400000) . If scan tool does not display NR, observe scan tool while starting engine. If engine speed increases to more than 450 RPM when starting engine, replace BCM. If engine speed does not increase, replace Powertrain Control Module (PCM).

TEST 49A - HEADLIGHTS INOPERATIVE IN AUTO MODE

Note. Perform TEST 47A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, actuate headlight relay. If headlights toggle on and off, replace Body Control Module (BCM). BCM is located behind right kick panel. If headlights do not toggle on and off, go to next step.
2. Turn ignition off. Disconnect BCM Gray connector. Connect jumper wire between ground and terminal No. 2 (Red/Dark Blue wire) on BCM Gray connector. If headlights illuminate, replace BCM. If headlights do not illuminate, go to next step.
3. Disconnect jumper wire. Remove headlight time delay relay from junction block. (Scheme 19) Junction block is located behind end cover, on left side of instrument panel. Using scan tool in voltmeter mode, measure voltage at terminal "A" (Red/White wire) on headlight time delay relay socket. If voltage is 10 volts or less, repair open Red/White wire. If voltage is more than 10 volts, go to next step.
4. Using scan tool in voltmeter mode, measure voltage at terminal "C" (Red/White wire) on headlight time delay relay socket. If voltage is 10 volts or less, repair open Red/White wire. If voltage is more than 10 volts, go to next step.
5. Connect jumper wire between terminals "A" (Red/White wire) and "B" (Light Green wire) on headlight time delay relay socket. If headlights do not illuminate, repair open Light Green wire. If headlights illuminate, go to next step.
6. Disconnect jumper wire. Using an external ohmmeter, measure resistance between terminal "E" on headlight time delay relay socket and terminal No. 2 (Red/Dark Blue wire) on BCM Gray connector. If resistance is 5 ohms or greater, repair open Red/Dark Blue wire. If resistance is less than 5 ohms, replace headlight time delay relay.

TEST 50A - PARKING LAMPS INOPERATIVE IN AUTO MODE

Note. Perform TEST 47A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, actuate parking lamp relay. If parking lamps toggle on and off, replace Body Control Module (BCM). BCM is located behind right kick panel. If parking lamps do not toggle on and off, go to next step.
2. Turn ignition off. Disconnect BCM Gray connector. Connect jumper wire between ground and terminal No. 24 (Light Blue wire) on BCM Gray connector. If parking lamps illuminate, replace BCM. If parking lamps do not illuminate, go to next step.
3. Disconnect jumper wire. Remove parking lamp relay. Parking lamp relay is located behind dash, below parking lamp switch. Using scan tool in voltmeter mode, measure voltage at terminal "B" (Pink/Red wire) on parking lamp relay socket. If voltage is 10 volts or less, repair open Pink/Red wire. If voltage is more than 10 volts, go to next step.
4. Using scan tool in voltmeter mode, measure voltage at terminal "C" (Pink/Red wire) on parking lamp relay socket. If voltage is 10 volts or less, repair open Pink/Red wire. If voltage is more than 10 volts, go to next step.
5. Connect jumper wire between terminals "B" (Pink/Red wire) and "D" (Black/Yellow wire) on parking lamp relay socket. If parking lamps do not illuminate, repair open Black/Yellow wire. If parking lamps illuminate, go to next step.
6. Disconnect jumper wire. Using an external ohmmeter, measure resistance between terminal No. 24 (Light Blue wire) on BCM Gray connector and terminal "A" on parking lamp relay socket. If resistance is 5 ohms or greater, repair open Light Blue wire. If resistance is less than 5 ohms, replace parking lamp relay.

TEST 51A - HEADLIGHTS & PARKING LAMPS DO NOT TURN OFF

Note. Perform TEST 47A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Ensure headlight switch is in OFF position. Using scan tool, read AUTO headlight switch status. If scan tool does not display AUTO HEADLIGHT STATE: ON, go to step 3). If scan tool displays AUTO HEADLIGHT STATE: ON, go to next step.
2. Disconnect headlight switch connector from behind switch. Using scan tool, read AUTO headlight switch status. If scan tool does not display AUTO HEADLIGHT STATE: ON, replace headlight switch. If scan tool displays AUTO HEADLIGHT STATE: ON, repair short to battery voltage in Yellow wire.
3. Ensure ignition is off. Disconnect Body Control Module (BCM) Gray connector. BCM is located behind right kick panel. If headlights go out, go to step 6). If headlights do not go out, go to next step.
4. Disconnect headlight time delay relay from junction block. (Scheme 19) Junction block is located behind end cover, on left side of instrument panel. If headlights do not go out, repair short to battery voltage in Yellow wire. If headlights go out, go to next step.
5. Using scan tool in ohmmeter mode, measure resistance at terminal "E" (Red/Dark Blue wire) on headlight time delay relay socket. If resistance is less than 5 ohms, repair short to ground in Red/Dark Blue wire. If resistance is 5 ohms or greater, replace headlight time delay relay.
6. If parking lamps go out, replace BCM. If parking lamps do not go out, remove parking lamp relay. Parking lamp relay is located behind dash, below parking lamp switch. If parking lamps do not go out, repair short to battery voltage in Black/Yellow wires. If parking lamps go out, go to next step.
7. Using scan tool in ohmmeter mode, measure resistance at terminal "A" (Light Blue wire) on parking lamp relay socket. If resistance is less than 5 ohms, repair short to ground in Light Blue wire. If resistance is 5 ohms or greater, replace parking lamp relay.

TEST 52A - PARKING LAMPS WILL NOT TURN OFF

Note. Perform TEST 47A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect headlight switch connector from behind switch. If parking lamps go out, replace headlight switch. If parking lamps do not go out, turn ignition off. Go to next step.
2. Disconnect Body Control Module (BCM) Gray connector. If parking lamps go out, replace BCM. If parking lamps do not go out, go to next step.
3. Disconnect parking lamp relay. Parking lamp relay is located behind dash, below parking lamp switch. If parking lamps do not go out, repair short to battery voltage in Black/Yellow wire. If parking lamps go out, go to next step.
4. Using scan tool in ohmmeter mode, measure resistance at terminal "A" (Light Blue wire) on parking lamp relay socket. If resistance is less than 5 ohms, repair short to ground in Light Blue wire. If resistance is 5 ohms or greater, replace parking lamp relay.

TEST 53A - INOPERATIVE ILLUMINATED ENTRY

Note. Perform SYMPTOM ID TEST 1A - IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Open left front door. If all courtesy lamps do not operate, go to «TEST 34A»(ref-138303-S16936976942002040400000). If all courtesy lamps operate, go to next step.
2. Close left front door. If courtesy lamps remain on, go to «TEST 37A»(ref-138303-S27324579262002040400000). If courtesy lamps do not remain on, go to next step. NOTE: Illuminated entry system operates by using Remote Keyless Entry (RKE) transmitter only, not by lifting door handle.
3. Close all doors. Lock left front door and wait 60 seconds. Using RKE transmitter, unlock left front door. If courtesy lamps come on and fade off after 30-40 seconds, system is operating properly at this time. If courtesy lamps do not come on and fade off after 30-40 seconds, go to next step.
4. Ensure ignition is off. Disconnect RKE module. (Scheme 18) Turn ignition off. Close all doors and wait 60 seconds. Connect jumper wire between ground and terminal "H" (White wire) on RKE module Blue connector. If courtesy lamps illuminate, replace RKE module. If courtesy lamps do not illuminate, go to next step.
5. Disconnect jumper wire. Access Body Control Module (BCM). BCM is located behind right kick panel. Ensure ignition switch is in OFF position. Wait 60 seconds. Connect jumper wire between ground and terminal No. 15 (White wire) on BCM Gray connector. If courtesy lamps illuminate, repair open White wire. If courtesy lamps do not illuminate, replace BCM.

TEST 54A - IDENTIFYING INSTRUMENT CLUSTER PROBLEMS

Diagnosis of the instrument cluster is separated into 7 categories. Identify problem area(s) listed in INSTRUMENT CLUSTER DIAGNOSTIC TEST DIRECTORY table and perform indicated test(s).

INSTRUMENT CLUSTER DIAGNOSTIC TEST DIRECTORY

TEST 55A - INSTRUMENT CLUSTER GAUGE PROBLEM

Note. Perform TEST 54A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, actuate each gauge in instrument cluster from low to high. If scan tool displays NO RESPONSE FROM AIR BAG MODULE, see appropriate AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section. If any gauges do not pass actuation test, go to «TEST 66A»(ref-138303-S12260570042002040400000) . If gauges pass actuation test, go to next step.
2. Stop actuation test. Check temperature operation. If temperature gauge is not operating properly, go to «TEST 65A»(ref-138303-S06143983792002040400000) . If temperature gauge is operating properly, go to next step.
3. Check fuel gauge operation. If fuel gauge is not operating properly, go to «TEST 67A»(ref-138303-S33410585652002040400000) . If fuel gauge is operating properly, go to next step.
4. Check speedometer operation. If speedometer is not operating properly, go to «TEST 69A»(ref-138303-S41785927382002040400000) . If speedometer is operating properly, go to next step.
5. Start engine. Using scan tool, read engine speed (RPM). If scan tool displays more than 400 RPM, replace instrument cluster. If scan tool displays less than 400 RPM, go to next step.
6. If scan tool displays RPM: NO RESPONSE, go to «TEST 114A»(ref-138303-S27816358042002040400000) . If scan tool does not display RPM: NO RESPONSE, replace body control module.

TEST 56A - ALL GAUGES INOPERATIVE

Note. Perform TEST 54A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn the ignition switch to the OFF position. Remove and inspect fuse No. 17. (Scheme 19) If the fuse is open (blown), proceed to «TEST 56B»(ref-138303-S09116329742002040400000). If fuse is okay, reinstall fuse. Go to next step.
2. Turn ignition on. Using scan tool in voltmeter mode, measure voltage at fused ignition switch output terminal (Red/White wire) on fuse No. 17 socket. If voltage is 10 volts or less, go to step 7). If voltage is more than 10 volts, go to next step.
3. Turn ignition off. Disconnect instrument cluster Black connector. Turn ignition on. Using scan tool in voltmeter mode, measure voltage at terminal No. 6 (Red/White wire) on instrument cluster Black connector. If voltage is 10 volts or less, repair open Red/White wire. If voltage is more than 10 volts, go to next step.
4. Connect a jumper wire between ground and terminal No. 3 (Violet/Brown wire) on instrument cluster Black connector. Using scan tool, perform CCD bus test. If scan tool does not display BUS SHORTED TO GROUND, repair open Violet/Brown wire between Body Control Module (BCM) and instrument cluster. If scan tool displays BUS SHORTED TO GROUND, go to next step.
5. Connect a jumper wire between ground and terminal No. 2 (White/Black wire) on instrument cluster Black connector. Using scan tool, perform CCD bus test. If scan tool does not display BUS SHORTED TO GROUND, repair open White/Black wire between BCM and instrument cluster. If scan tool displays BUS SHORTED TO GROUND, go to next step.
6. Close all doors. Turn ignition off and remove key. Wait 30 seconds. Using scan tool in ohmmeter mode, measure resistance at terminal No. 1 (Black/Light Green wire) on instrument cluster Black connector. If resistance is 100 ohms or greater, repair open Black/Light Green wire. If resistance is less than 100 ohms, replace instrument cluster.
7. Turn ignition off. Disconnect ignition switch connector. (Scheme 17) Turn ignition on. Using scan tool in voltmeter mode, measure voltage at terminal No. 9 (Red wire) on ignition switch connector. If voltage is 10 volts or less, repair open Red wire. If voltage is more than 10 volts, go to next step.
8. Turn ignition off. Using an external ohmmeter, measure resistance between terminal No. 8 (Red/White wire) on ignition switch connector and ignition switch output terminal on fuse No. 17 socket. If resistance is 5 ohms or greater, repair open Red/White wire. If resistance is less than 5 ohms, replace ignition switch.

TEST 56B - ALL GAUGES INOPERATIVE

Note. Perform TEST 56A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool in ohmmeter mode, measure resistance at fused ignition switch output terminal (Red/White wire) on fuse No. 17 socket. (Scheme 19) If resistance is 5 ohms or greater, replace fuse. If resistance is less than 5 ohms, go to next step.
2. Disconnect instrument cluster connectors. Using scan tool in ohmmeter mode, measure resistance at fused ignition switch output terminal (Red/White wire) on fuse No. 17 socket. If resistance is 5 ohms or greater, replace instrument cluster and fuse. If resistance is less than 5 ohms, go to next step.
3. Disconnect Transmission Control Module (TCM) connector. TCM is located in engine compartment between left front fender and battery. Using scan tool in ohmmeter mode, measure resistance at fused ignition switch output terminal (Red/White wire) on fuse No. 17 socket. If resistance is 5 ohms or greater, replace TCM and fuse. If resistance is less than 5 ohms, go to next step.
4. Disconnect Body Control Module (BCM) connector. BCM is located behind right kick panel. Using scan tool in ohmmeter mode, measure resistance at fused ignition switch output terminal (Red/White wire) on fuse No. 17 socket. If resistance is 5 ohms or greater, replace BCM and fuse. If resistance is less than 5 ohms, go to next step.
5. Determine if vehicle is flexible fuel equipped. If vehicle is flex fuel, go to next step. If vehicle is not flex fuel, repair short to ground in Red/White wire and replace fuse.
6. Disconnect flex fuel module in trunk. Using scan tool in ohmmeter mode, measure resistance at fused ignition switch output terminal (Red/White wire) on fuse No. 17 socket. If resistance is 5 ohms or greater, replace flex fuel module and fuse. If resistance is less than 5 ohms, repair short to ground in Red/White wire and replace fuse.

TEST 57A - INSTRUMENT CLUSTER SENSE CIRCUITS

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. If speedometer does not operate, go to «TEST 69A»(ref-138303-S41785927382002040400000) . If speedometer operates properly, replace odometer. If speedometer operates improperly and vehicle is not a Dodge, go to «TEST 57B»(ref-138303-S06895773932002040400000) . If vehicle is a Dodge, go to next step.
2. Using scan tool, read cluster ID. If scan tool displays CLUSTER ID: DODGE, go to step 6). If scan tool does not display CLUSTER ID: DODGE, turn ignition off. Disconnect instrument cluster connectors. Go to next step.
3. Connect jumper wire between ground and terminal No. 10 (Orange/Dark Blue wire) on instrument cluster Black connector. If scan tool displays CLUSTER ID: DODGE, replace instrument cluster. If scan tool does not display CLUSTER ID: DODGE, disconnect jumper wire. Go to next step.
4. Gain access to Body Control Module (BCM). BCM is located behind right kick panel. DO NOT disconnect connectors. Connect jumper wire between ground and terminal No. 12 (Orange/Dark Blue wire) on BCM Gray connector. If scan tool displays CLUSTER ID: DODGE, repair open Orange/Dark Blue wire. If scan tool does not display CLUSTER ID: DODGE, go to next step.
5. Turn ignition off. Disconnect and inspect BCM Gray connector. Repair connector as necessary. If connector is okay, replace BCM. NOTE: English speedometer head displays MPH letters larger than KM/H letters.
6. If speedometer is an English unit, go to step 9). If speedometer is not an English unit, use scan tool to read instrument cluster mode status. If scan tool displays MIC MODE: KM/H, repair or replace instrument cluster as necessary. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If scan tool does not display MIC MODE: KM/H, go to next step.
7. Disconnect instrument cluster connectors. Using scan tool, read MIC (mechanical instrument cluster) mode status. If scan tool displays MIC MODE: KM/H, repair or replace instrument cluster as necessary. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If scan tool does not display MIC MODE: KM/H, go to next step.
8. Ensure ignition is off. Disconnect Body Control Module (BCM) connectors. Using scan tool in ohmmeter mode, measure resistance of BCM Gray connector terminal No. 7 (Light Blue wire). If resistance is less than 5 ohms, repair short to ground in Light Blue wire. If resistance is 5 ohms or greater, replace BCM.
9. Using scan tool, read MIC (mechanical instrument cluster) mode status. If scan tool displays MIC MODE: MPH, repair or replace instrument cluster as necessary. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If scan tool does not display MIC MODE: MPH, go to next step.
10. Ensure ignition is off. Disconnect instrument cluster connectors and BCM connectors. Using scan tool in voltmeter mode, measure voltage at terminal No. 7 (Light Blue wire) on BCM Gray connector. If voltage is more than 10 volts, repair short to battery voltage in Light Blue wire and replace instrument cluster. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If voltage is 10 volts or less, go to next step.
11. Reconnect BCM connectors. Connect jumper wire between ground and terminal No. 9 (Light Blue wire) instrument cluster Black connector. If scan tool displays MIC MODE: MPH, replace instrument cluster. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If scan tool does not display MIC MODE: MPH, go to next step.
12. Disconnect jumper wire. Connect jumper wire between ground and terminal No. 7 (Light Blue wire) on BCM Gray connector. If scan tool displays MIC MODE: MPH, repair open Light Blue wire. If scan tool does not display MIC MODE: MPH, go to next step.
13. Ensure ignition off. Disconnect and inspect BCM Gray connector. Repair connector as necessary. If connector is okay, replace BCM.

TEST 57B - INSTRUMENT CLUSTER SENSE CIRCUITS

Note. Perform TEST 57A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, read cluster ID. If scan tool displays CLUSTER ID: CHRY/EAGL, go to step 3). If scan tool does not display CLUSTER ID: CHRY/EAGL, turn ignition off. Disconnect instrument cluster connectors. Using scan tool, read cluster ID. If scan tool displays CLUSTER ID: CHRY/EAGL, replace instrument cluster. If scan tool does not display CLUSTER ID: CHRY/EAGL, go to next step.
2. Disconnect Body Control Module (BCM) connectors. BCM is located behind right kick panel. Using scan tool in ohmmeter mode, measure resistance at terminal No. 12 (Orange/Dark Blue wire) on BCM Gray connector. If resistance is less than 5 ohms, repair short to ground in Orange/Dark Blue wire. If resistance is 5 ohms or greater, replace BCM. NOTE: Metric speedometer head displays KM/H letters larger than MPH letters.
3. If speedometer is not a metric unit, go to step 6). If speedometer is a metric unit, use scan tool to read instrument cluster mode status. If scan tool displays MIC MODE: KM/H, repair or replace instrument cluster as necessary. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If scan tool does not display MIC MODE: KM/H, go to next step.
4. Ensure ignition switch is in OFF position. Disconnect instrument cluster connectors. If scan tool displays MIC MODE: KM/H, repair or replace instrument cluster as necessary. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If scan tool does not display MIC MODE: KM/H, go to next step.
5. Disconnect BCM connectors. Using scan tool in ohmmeter mode, measure resistance at terminal No. 7 (Light Blue wire) on BCM Gray connector. If resistance is less than 5 ohms, repair short to ground in Light Blue wire. If resistance is 5 ohms or greater, replace BCM.
6. Using scan tool, read MIC mode status. If scan tool displays MIC MODE: MPH, repair or replace instrument cluster as necessary. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If scan tool does not display MIC MODE: MPH, go to next step.
7. Ensure ignition switch is in OFF position. Disconnect instrument cluster connectors and BCM connectors. Turn ignition on. Using scan tool in voltmeter mode, measure voltage at terminal No. 7 (Light Blue wire) on BCM Gray connector. If voltage is more than 10 volts, repair short to battery voltage in Light Blue wire and replace instrument cluster. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If voltage is 10 volts or less, go to next step.
8. Reconnect BCM connectors. Connect jumper wire between ground terminal No. 9 (Light Blue wire) and instrument cluster Black connector. If scan tool displays MIC MODE: MPH, repair or replace instrument cluster. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If scan tool does not display MIC MODE: MPH, go to next step.
9. Disconnect jumper wire. Gain access to BCM. Connect jumper wire between ground and terminal No. 7 (Light Blue wire) on BCM Gray connector. If scan tool displays MIC MODE: MPH, repair open Light Blue wire. If scan tool does not display MIC MODE: MPH, replace BCM.

TEST 58A - IDENTIFYING WARNING LAMP PROBLEMS

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Note. Oil pressure warning lamp and brake warning lamp cannot be actuated using scan tool.

Note. When actuating problem lamp, if scan tool displays NO RESPONSE FROM AIR BAG MODULE, see appropriate AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section.

1. Using scan tool, actuate each instrument cluster warning lamp. If warning lamps turn on then off, actuator test passes. Go to next step. If actuator test fails, go to «TEST 58B»(ref-138303-S04530623582002040400000) .
2. Stop actuation test. Identify faulty lamp. Perform appropriate test listed in DIAGNOSING WARNING LAMP PROBLEMS table. If no warning lamp problems exist, system is operating properly at this time.

DIAGNOSING WARNING LAMP PROBLEMS

TEST 58B - INSTRUMENT CLUSTER PRINTED CIRCUIT BOARD

Note. Perform TEST 58A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, stop actuation test. Turn ignition off. Disconnect instrument cluster. Remove and inspect inoperative lamp. Replace lamp if necessary. If lamp is okay, go to next step.
2. Inspect instrument cluster printed circuit board. Replace printed circuit board if necessary. If printed circuit board is okay, repair or replace instrument cluster. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.

TEST 59A - COMMUNICATION WITH TRANSMISSION CONTROL MODULE

Note. Perform SYMPTOM ID TEST 1B - IDENTIFYING DIAGNOSTIC TROUBLE CODES or TEST 58A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, read body computer DTCs. If scan tool displays TRANS PRNDL MESSAGE TEST FAILED, go to step 4). If scan tool does not display TRANS PRNDL MESSAGE TEST FAILED, go to next step.
2. Using scan tool, actuate PRNDL lamps. If each lamp illuminates individually then all at once, test is successful. Go to next step. If test fails, repair or replace instrument cluster. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.
3. Using scan tool, select Transmission Control Module (TCM). Select monitors in state displays. Monitor Shift Lever Position (SLP) state of shift lever status. Apply parking brake. Move gear shift lever through all positions. If SLP state matches gear shift lever position, repair or replace instrument cluster. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If SLP state does not match gear shift lever position, see TRANSMISSION ELECTRONIC DIAGNOSIS article in the AUTOMATIC TRANSMISSION section. NOTE: Low battery or momentary Chrysler Collision Detection (CCD) bus failure may cause DTCs to set.
4. Using scan tool, erase DTCs. Start and run engine for 2 minutes. Turn engine off. Turn ignition on. Using scan tool, read body computer DTCs. If TRANS PRNDL MESSAGE TEST FAILED DTC is not present, system is operating properly at this time. If TRANS PRNDL MESSAGE TEST FAILED DTC is present, go to next step.
5. Turn ignition off. Disconnect Transmission Control Module (TCM) connector. TCM is located in engine compartment between left front fender and battery. Turn ignition on. Using scan tool in voltmeter mode, connect a jumper wire between ground and terminal No. 43 (Violet/Brown wire) on TCM connector. Using scan tool, perform CCD bus test. If scan tool does not display BUS SHORTED TO GROUND, repair open Violet/Brown wire. If scan tool displays BUS SHORTED TO GROUND, go to next step.
6. Disconnect jumper wire. Connect jumper wire between ground and terminal No. 4 (White/Black wire) TCM connector. If scan tool does not display BUS SHORTED TO GROUND, repair open White/Black wire. If scan tool does not display BUS SHORTED TO GROUND, replace TCM.

TEST 60A - DIAGNOSING INSTRUMENT CLUSTER ILLUMINATION PROBLEM

Note. Perform TEST 54A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, read Body Control Module (BCM) DTCs. If scan tool displays PANEL LAMP PWM OUTPUT FAILURE, go to «TEST 60B»(ref-138303-S38310083232002040400000) . If scan tool does not display PANEL LAMP PWM OUTPUT FAILURE, go to next step.
2. Ensure parking lamp switch is in OFF position. If parking lamps illuminate with parking lamp switch in OFF position, go to «TEST 60C»(ref-138303-S39153139312002040400000) . If parking lamps do not illuminate, go to next step.
3. Turn parking lamps on. If parking lamps do not illuminate, go to «TEST 61A»(ref-138303-S21717969562002040400000) . If parking lamps illuminate, go to next step.
4. Move dimmer switch to high. If both turn signal indicators and high beam indicator do not illuminate with parking lamps on, go to step 6). If both turn signal indicators and high beam indicator illuminate with parking lamps on, go to next step.
5. Turn parking lamps off. Ensure ignition switch is in OFF position. Disconnect instrument cluster connectors. Using scan tool in ohmmeter mode, measure resistance at terminal No. 3 (Black wire) on instrument cluster Gray connector. If resistance is 5 ohms or greater, repair open Black wire. If resistance is less than 5 ohms, repair or replace instrument cluster. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.
6. Using scan tool, read panel lamp sensor voltage. Rotate dimmer switch to low, then high. If voltage changes evenly between 10 and zero volts, go to «TEST 62A»(ref-138303-S11977879672002040400000) . If voltage does not change evenly between 10 and zero volts, and scan tool displays 0.0 VOLT, go to «TEST 63A»(ref-138303-S01315789592002040400000) . If scan tool does not displays 0.0 VOLT, and panel lamps illuminate properly, system is operating properly at this time. If panel lamps do not illuminate properly, go to next step.
7. Disconnect headlight switch connector. Disconnect Body Control Module (BCM) connectors. BCM is located behind right kick panel. Turn ignition on. Using scan tool in voltmeter mode, measure voltage at terminal No. 4 (Orange/Dark Blue wire) on BCM Bone connector. If voltage is more than 10 volts, repair short to battery voltage in Orange/Dark Blue wire. If voltage is less than 10 volts, replace BCM.

TEST 60B - PARKING LAMP SWITCH OUTPUT CIRCUIT SHORT TO GROUND

Note. Perform TEST 60A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Note. Low battery or momentary Chrysler Collision Detection (CCD) bus failure may cause DTCs to set.

1. Using scan tool, erase DTCs. Start engine. Turn parking lamps on. Allow engine to run for 2 minutes. Turn parking lamps off. Turn engine off. Turn ignition on. Using scan tool, read Body Control Module (BCM) DTCs. If PANEL LAMP PWM OUTPUT FAILURE DTC is not present, system is operating properly at this time. If PANEL LAMP PWM OUTPUT FAILURE is present, go to next step.
2. Turn ignition off. Disconnect BCM connectors. BCM is located behind right kick panel. Using scan tool in ohmmeter mode, measure resistance at terminal No. 8 (Orange wire) on BCM Gray connector. If resistance is 5 ohms or greater, replace BCM. If resistance is less than 5 ohms, go to next step.
3. Disconnect headlight switch connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 8 (Orange wire) on BCM Gray connector. If resistance is 5 ohms or greater, replace headlight switch. If resistance is less than 5 ohms, go to next step.
4. Disconnect radio connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 8 (Orange wire) on BCM Gray connector. If resistance is 5 ohms or greater, replace radio. If resistance is less than 5 ohms, go to next step.
5. Disconnect Automatic Temperature Control (ATC) head connector (if equipped). ATC head is located behind A/C-heater control panel. Using scan tool in ohmmeter mode, measure resistance at terminal No. 8 (Orange wire) on BCM Gray connector. If resistance is 5 ohms or greater, replace ATC head. If resistance is less than 5 ohms, go to next step.
6. Disconnect manual A/C climate control head connector (if equipped). Manual A/C climate control head is located behind A/C-heater control panel. Using scan tool in ohmmeter mode, measure resistance at terminal No. 8 (Orange wire) on BCM connector. If resistance is 5 ohms or greater, replace manual A/C climate control head. If resistance is less than 5 ohms, go to next step.
7. Disconnect instrument cluster connectors. Using scan tool in ohmmeter mode, measure resistance at terminal No. 8 (Orange wire) on BCM connector. If resistance is 5 ohms or greater, replace instrument cluster. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If resistance is less than 5 ohms, repair short to ground in Orange wire.

TEST 60C - PARKING LAMP SWITCH OUTPUT CIRCUIT SHORT TO BATTERY

Note. Perform TEST 60A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect headlight switch connector. If parking lamps turn off, replace parking lamp switch. If parking lamps do not turn off, go to next step.
2. If vehicle is equipped with a parking lamp relay go to next step. Parking lamp relay is located behind dash, below parking lamp switch. If vehicle is not equipped with a parking lamp relay, repair short to battery voltage in Black/Yellow wire between BCM and headlight switch.
3. Disconnect parking lamp relay. If parking lamps do not turn off, repair short to battery voltage in Black/Yellow wire between Body Control Module (BCM) and parking lamp relay. If parking lamps turn off, go to next step.
4. Ensure ignition is off. Using an external ohmmeter, measure resistance between component terminals "B" and "D" on parking lamp relay. If resistance is less than 5 ohms, replace parking light relay. If resistance is 5 ohms or greater, go to next step.
5. Disconnect BCM connectors. Using scan tool in ohmmeter mode, measure resistance at terminal "A" (Light Blue wire) on parking lamp relay socket. If resistance is less than 5 ohms, repair short to ground in Light Blue wire. If resistance is 5 ohms or greater, replace BCM.

TEST 61A - PARKING LAMP SWITCH POWER SUPPLY

Note. Perform TEST 60A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Note. Low battery or momentary Chrysler Collision Detection (CCD) bus failure may cause DTCs to set.

1. Remove and inspect fuse No. 9. (Scheme 19) If fuse is open, go to «TEST 64A»(ref-138303-S28867162352002040400000). If fuse is okay, use scan tool in voltmeter mode to measure voltage at fused B+ terminal (Pink/White wire) on fuse No. 9 socket. If voltage is more than 10 volts, go to step 4). If voltage is 10 volts or less, go to next step.
2. Gain access to Power Distribution Center (PDC). PDC is located in engine compartment in front of left strut tower. Remove and inspect fuse "F". (Scheme 20) If fuse is open, repair short to ground in Pink/White wire and replace fuse. If fuse is okay, go to next step.
3. Using scan tool in voltmeter mode, measure voltage at B+ terminal (Black wire) on fuse "F" connector. If voltage is 10 volts or less, repair or replace PDC as necessary. If voltage is more than 10 volts, repair open Black wire.
4. Reinstall fuse. Disconnect headlight switch. Using scan tool in voltmeter mode, measure voltage at terminal No. 4 (Pink/Red wire) on headlight switch 7-pin connector. If voltage is 10 volts or less, repair open Pink/Red wire. If voltage is more than 10 volts, go to next step.
5. Connect jumper wire between terminals No. 4 (Pink/Red wire) and No. 5 (Black/Yellow wire) on headlight switch 7-pin connector. If parking lamps illuminate, replace headlight switch. If parking lamps do not illuminate, go to next step.
6. Turn ignition off. Disconnect Body Control Module (BCM) connector. BCM is located behind right kick panel. Using scan tool in voltmeter mode, measure voltage at terminal No. 23 (Black/Yellow wire) on BCM Bone connector. If voltage is 10 volts or less, repair open Black/Yellow wire between headlight switch and BCM. If voltage is more than 10 volts, repair open Black/Yellow wire between headlight switch and parking lamps.

Identifying PDC Fuses. Scheme 20

TEST 62A - OPEN PANEL LAMPS DRIVER CIRCUIT

Note. Perform TEST 60A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Ensure parking lamps are on. Using scan tool in voltmeter mode, measure voltage backprobing terminal No. 8 (Orange wire) on Body Control Module (BCM) Gray connector. Rotate dimmer switch from low to high. If voltage does not increase from zero to 12 volts, replace BCM. If voltage increases from zero to 12 volts, go to next step.
2. Disconnect instrument cluster connectors. Using scan tool in voltmeter mode, measure voltage at terminal No. 1 (Orange wire) on instrument cluster Gray connector. If voltage is 5 volts or less, repair open Orange wire. If voltage is more than 5 volts, go to next step.
3. If problem exists in instrument cluster dimming only, replace instrument cluster. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If problem does not exist in instrument panel dimming only, go to next step.
4. Remove and inspect inoperative panel lamp. Replace lamp if necessary. If lamp is okay, repair open Orange wire between BCM and inoperative lamp or repair open Black wire to inoperative lamp.

TEST 63A - DIAGNOSING PARKING LAMP SWITCH

Note. Perform TEST 60A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Disconnect headlight switch connector. Disconnect Body Control Module (BCM) connectors. Using scan tool in ohmmeter mode, measure resistance at terminal No. 5 (Orange/Dark Blue wire) on headlight switch 8-pin connector. If resistance is less than 5 ohms, repair short to ground in Orange/Dark Blue wire. If resistance is 5 ohms or greater, go to next step.
2. Using an external ohmmeter, measure resistance between terminal No. 5 (Orange/Dark Blue wire) on headlight switch connector and terminal No. 4 on BCM Bone connector. If resistance is 5 ohms or greater, repair open Orange/Dark Blue wire. If resistance is less than 5 ohms, go to next step.
3. Using scan tool in ohmmeter mode, measure resistance at terminal No. 2 (Black wire) on headlight switch 8-pin connector. If resistance is 5 ohms or greater, repair open Black wire. If resistance is less than 5 ohms, go to next step.
4. Using an external ohmmeter, measure resistance between terminals No. 2 and No. 5 on parking lamp/headlight switch. (Scheme 21) Slowly rotate dimmer switch from low to high. If resistance does not change from more than 9000 ohms to less than 2000 ohms, replace parking lamp/headlight switch. If resistance changes from more than 9000 ohms to less than 2000 ohms, replace BCM.

Testing Parking Lamp/Headlight Switch. Scheme 21

TEST 64A - PARKING LAMP SWITCH OUTPUT CIRCUIT SHORT TO GROUND

Note. Perform TEST 61A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Replace fuse No. 9. (Scheme 19) Turn parking lamps on. If parking lamps illuminate without blowing fuse, repair is complete. If fuse blows, go to next step.
2. Turn parking lamps off. Using scan tool in ohmmeter mode, measure resistance at fused B+ terminal (Pink/Red wire) on fuse No. 9 connector. If resistance is 5 ohms or greater, repair short to ground in Pink/Red wire and replace fuse. If resistance is less than 5 ohms, go to next step.
3. Disconnect headlight switch connector. Using scan tool in ohmmeter mode, measure resistance at fused B+ terminal (Pink/Red wire) on fuse No. 9 connector. If resistance is 5 ohms or greater, replace headlight switch and replace fuse. If resistance is less than 5 ohms, go to next step.
4. Disconnect instrument cluster connectors. If resistance is 5 ohms or greater, repair or replace instrument cluster as necessary and replace fuse. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If resistance is less than 5 ohms, go to next step.
5. Disconnect Body Control Module (BCM) connectors. Measure resistance of fuse No. 9 connector (Pink/Red wire). If resistance is 5 ohms or greater, replace BCM and replace fuse. If resistance is less than 5 ohms, go to next step.
6. If vehicle is equipped with parking lamp relay, go to next step. Parking lamp relay is located behind dash, below parking lamp switch. If vehicle is not equipped with parking lamp relay, repair short to ground in Pink/Red wire and replace fuse.
7. Disconnect parking lamp relay. Using scan tool in ohmmeter mode, measure resistance at fused B+ terminal (Pink/Red wire) on fuse No. 9 connector. If resistance is 5 ohms or greater, replace parking lamp relay and replace fuse. If resistance is less than 5 ohms, repair short to ground in Pink/Red wire.

TEST 65A - FAULTY TEMPERATURE GAUGE/LAMP

Note. Perform TEST 55A or 58A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Ensure engine cooling system is operating properly. Repair as necessary. If engine cooling system is okay, go to next step.
2. Using scan tool, select engine controller. If scan tool does not display ENGINE CONTROLLER ACTIVE ON THE BUS, go to «TEST 114A»(ref-138303-S27816358042002040400000) . If scan tool displays ENGINE CONTROLLER ACTIVE ON THE BUS, go to next step.
3. Using scan tool, read Powertrain Control Module (PCM) trouble codes. If scan tool displays ECT SENSOR VOLTAGE TOO HIGH, see TESTS W/CODES article in the ENGINE PERFORMANCE section. If scan tool does not display ECT SENSOR VOLTAGE TOO HIGH, go to next step.
4. If scan tool displays ECT SENSOR VOLTAGE TOO LOW, see TESTS W/CODES article in the ENGINE PERFORMANCE section. If scan tool does not display ECT SENSOR VOLTAGE TOO LOW, replace PCM. PCM is located under air cleaner.

TEST 66A - FAULTY GAUGE

Note. Perform TEST 55A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Using scan tool, stop actuation test. Turn ignition off. Remove faulty gauge(s). Inspect printed circuit board and its connectors. If printed circuit board is not okay, replace defective circuit board. If printed circuit board is okay, replace defective gauge(s).

TEST 68A - FUEL GAUGE/LAMP EMPTY AT ALL TIMES

Note. Perform SYMPTOM ID TEST 1B - IDENTIFYING DIAGNOSTIC TROUBLE CODES or TEST 67A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Ensure fuel tank is not empty before proceeding. If problem exists in fuel warning lamp only, replace Body Control Module (BCM). If problem does not exist in fuel warning lamp only, go to next step.
2. Turn ignition off. If vehicle is flex fuel equipped, go to «TEST 68B»(ref-138303-S31375512962002040400000) . If vehicle is not flex fuel, turn ignition on. Using scan tool, read ignition voltage. If scan tool displays 0.0 volts, go to «TEST 68C»(ref-138303-S42443295872002040400000) . If scan tool does not display 0.0 volts, go to next step.
3. Read fuel level voltage status. If scan tool displays less than 1 volt, go to «TEST 68D»(ref-138303-S02860946702002040400000) . If scan tool displays 1 volt or greater, turn ignition off. Access fuel pump connector. Connector is located on top of fuel tank and is accessible by removing access cover in floor of trunk. Disconnect fuel pump connector. Go to next step.
4. Turn ignition on. Connect jumper wire between fuel pump connector terminals No. 2 (Dark Blue wire) and No. 3 (Black/Tan wire). Using scan tool, read fuel level sensor voltage. If scan tool displays less than 1 volt, replace fuel level sensor. If voltage is 1 volt or greater, disconnect jumper wire. Go to next step.
5. Connect jumper wire between fuel pump connector terminal No. 2 (Dark Blue wire) and chassis ground. If scan tool displays less than 1 volt, repair open Dark Blue wire. If voltage is 1 volt or greater, disconnect jumper wire. Go to next step.
6. With BCM connectors connected, connect jumper wire between BCM Gray connector terminal No. 23 (Dark Blue wire) and chassis ground. If scan tool displays less than 1 volt, repair open Dark Blue wire. If voltage is 1 volt or greater, disconnect jumper wire. Go to next step.
7. Turn ignition off. Disconnect and inspect BCM Gray connector. Repair connector as necessary. If connector is okay, replace BCM.

TEST 68B - FUEL GAUGE/LAMP EMPTY AT ALL TIMES

Note. Perform TEST 68A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition on. Using scan tool, read ignition voltage status. If voltage is 0.0 volts, go to «TEST 68C»(ref-138303-S42443295872002040400000). If voltage is not 0.0 volts, go to next step.
2. Disconnect flex fuel module connector. Flex fuel module is located in trunk, behind rear seat. Connect jumper wire between ground and terminal No. 4 (Dark Blue wire) on flex fuel module connector. Using scan tool, read fuel level voltage. If voltage is one volt or greater, go to next step. If scan tool displays less than one volt, go to step 4).
3. Access Body Control Module (BCM) Gray connector. BCM is located behind right kick panel. DO NOT disconnect connectors. Backprobe jumper wire between ground and terminal No. 23 (Dark Blue wire) on BCM Gray connector. Read fuel level voltage. If scan tool displays less than one volt, repair open Dark Blue wire. If voltage is one volt or greater, replace BCM.
4. Disconnect jumper wire. Using scan tool in ohmmeter mode, measure resistance at terminal No. 5 (Black/Tan wire) on flex fuel module connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open Black/Tan wire.
5. Using scan tool in voltmeter mode, measure voltage at terminal No. 6 (Red/White wire) on flex fuel module connector. If voltage is greater than 10 volts, go to next step. If voltage is 10 volts or less, repair open Red/White wire.
6. Disconnect fuel pump connector. Using external ohmmeter, measure resistance between terminal No. 2 (Light Blue/Red wire) on flex fuel module connector and terminal No. 3 (Black/Tan wire) on fuel pump connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open Line 1 circuit between flex fuel module and fuel pump.
7. Using external ohmmeter, measure resistance between terminal No. 3 (Light Blue/Black wire) on flex fuel module connector and terminal No. 2 (Dark Blue wire) on fuel pump connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or greater, repair open Line 2 circuit between flex fuel module and fuel pump.
8. Connect fuel pump connector. Using external ohmmeter, measure resistance between terminals No. 2 (Light Blue/Red wire) and No. 3 (Light Blue/Black wire) on flex fuel module connector. If resistance is 1000 ohms or greater, replace fuel level sensor. If resistance is less than 1000 ohms, go to next step.
9. Disconnect flex fuel module 8-pin connector to fuel tank and to main harness. (Scheme 22) Connect main harness 8-pin connector to fuel tank 8-pin connector, bypassing flex fuel module. If fuel gauge operates correctly, replace flex fuel module. If fuel gauge does not operate correctly, replace fuel level sensor.

Scheme 22

TEST 68D - FUEL LEVEL VOLTAGE BELOW 1 VOLT

Note. Perform TEST 67A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Access fuel pump connector. Connector is located on top of fuel tank and is accessible by removing access cover in floor of trunk. Disconnect fuel pump connector. Using scan tool, read fuel level voltage status.
2. If scan tool displays 1 volt or greater, replace fuel level sending unit. If voltage is less than 1 volt, turn ignition off. Disconnect Body Control Module (BCM) Gray harness connector. BCM is located behind right kick panel. Go to next step.
3. Using scan tool, read fuel level voltage status. If scan tool displays 1 volt or greater, repair fuel level sensor signal circuit (Dark Blue wire) for short to ground. If voltage is less than 1 volt, replace BCM.

TEST 69A - FAULTY SPEEDOMETER

Note. Perform TEST 54A , 55A or 57A before proceeding with this test. For connector ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. If speedometer operates, go to «TEST 57A»(ref-138303-S27287712762002040400000) . If speedometer does not operate, turn ignition on. Using scan tool, select body systems tests. Select PCM monitor. If scan tool does not display ACTIVE ON THE BUS, go to «TEST 114A»(ref-138303-S27816358042002040400000) . If scan tool displays ACTIVE ON THE BUS, go to next step.
2. Raise and support vehicle. Start engine. If vehicle is equipped with traction control, turn traction control system off. On all vehicles, place gear shift lever in Drive. Go to next step.
3. Using scan tool, read Vehicle Speed Sensor (VSS) signal. If scan tool displays increased vehicle speed as vehicle is accelerated, replace body control module. If scan tool does not display increased vehicle speed as vehicle is accelerated, see TESTS W/CODES article in the ENGINE PERFORMANCE section.

TEST 70A - OIL PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND

Note. Perform TEST 58A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition on. If oil warning lamp does not illuminate, go to «TEST 70B»(ref-138303-S21845227242002040400000) . If oil warning lamp illuminates, turn ignition off. Check engine oil level. Adjust oil level if necessary. If oil level is within specification, go to next step.
2. Remove oil pressure switch. Switch is located on lower left side of engine. Connect hand-held oil pressure gauge in place of switch and start engine. If gauge reading is less than 4 psi (.28 kg/cm 2 ) at idle, check mechanical condition of engine for low oil pressure. Repair as necessary. If gauge reading is 4 psi (.28 kg/cm 2 ) or more at idle, go to next step.
3. Allow engine to reach normal operating temperature. If gauge reading is less than 4 psi (.28 kg/cm 2 ) with warm engine and at idle, check mechanical condition of engine for low oil pressure. Repair as necessary. If gauge reading is 4 psi (.28 kg/cm 2 ) or more with warm engine and at idle, go to next step.
4. Check if oil pressure warning lamp is off. If oil pressure warning lamp is off, replace oil pressure switch. If oil pressure warning lamp is on, go to next step.
5. Turn ignition off. Disconnect instrument cluster Gray connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 5 (Gray wire) on instrument cluster Gray connector. If resistance is less than 5 ohms, repair short to ground in Gray wire. If resistance is 5 ohms or greater, repair or replace instrument cluster as necessary. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.

TEST 70B - OPEN OIL PRESSURE SWITCH SENSE CIRCUIT

Note. Perform TEST 58A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect oil pressure switch connector, located next to oil filter. Connect jumper wire between ground and terminal No. 2 (Gray wire) on oil pressure switch connector. If oil pressure warning lamp illuminates, replace oil pressure switch. If oil pressure warning lamp does not illuminate, go to next step.
2. Leave jumper wire connected. Disconnect instrument cluster Gray connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 5 (Gray wire) on instrument cluster Gray connector. If resistance is 5 ohms or greater, repair open Gray wire. If resistance is less than 5 ohms, go to next step.
3. Remove and inspect oil pressure warning lamp. Replace lamp if necessary. If lamp is okay, repair or replace instrument cluster as necessary. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.

TEST 71A - SEAT BELT SWITCH CIRCUIT SHORT TO GROUND

Note. Perform TEST 32A or 58A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition on. Ensure left front seat belt is not fastened. Using scan tool, read seat belt switch status. If scan tool does not display SEAT BELT: CLOSED, go to «TEST 72A»(ref-138303-S19644544562002040400000) . If scan tool displays SEAT BELT: CLOSED, go to next step.
2. Fasten left front seat belt. If scan tool displays SEAT BELT OPEN, system is operating properly at this time. If scan tool does not display SEAT BELT: OPEN, go to next step.
3. Disconnect left front seat belt switch connector. Connector is located on left side door pillar, just behind seat. Using scan tool, read seat belt switch status. If scan tool does not display SEAT BELT: CLOSED, replace left front seat belt switch. If scan tool displays SEAT BELT: CLOSED, go to next step.
4. Turn ignition off. Disconnect Body Control Module (BCM) Gray connector. BCM is located behind right kick panel. Using scan tool in ohmmeter mode, measure resistance at terminal No. 5 (Light Green/Red wire) on BCM Gray connector. If resistance is less than 5 ohms, repair short to ground in Light Green/Red wire. If resistance is 5 ohms or greater, replace BCM.

TEST 72A - OPEN SEAT BELT SWITCH CIRCUIT

Note. Perform TEST 32A or 71A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect left front seat belt switch connector. Connector is located on left side door pillar, just behind seat. Connect jumper wire between seat belt switch connector terminals. Using scan tool, read seat belt switch status. If scan tool displays SEAT BELT: CLOSED, replace left front seat belt switch. If scan tool does not display SEAT BELT: CLOSED, go to next step.
2. Connect jumper wire between ground and terminal No. 1 (Light Green/Red wire) on seat belt switch connector. If scan tool displays SEAT BELT: CLOSED, repair open Black wire. If scan tool does not display SEAT BELT: CLOSED, go to next step.
3. Access Body Control Module (BCM). BCM is located behind right kick panel. DO NOT disconnect connectors. Backprobe a jumper wire between ground and terminal No. 5 (Light Green/Red wire) on BCM Gray connector. If scan tool displays SEAT BELT: CLOSED, repair open Light Green/Red wire. If scan tool does not display SEAT BELT: CLOSED, replace BCM.

TEST 73A - DIAGNOSING PARKING BRAKE WARNING LAMP

Note. Perform TEST 58A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. If vehicle is equipped with Anti-Lock Brake System (ABS), see BRAKE SYSTEM - ANTI-LOCK article in the BRAKES section. If vehicle is not equipped with ABS, disengage parking brake if set. Ensure parking brake lever moves freely. If BRAKE warning lamp does not illuminate with empty brake fluid reservoir, go to «TEST 73B»(ref-138303-S07286710922002040400000) . Turn ignition on. If BRAKE warning lamp illuminates, go to «TEST 73E»(ref-138303-S35261448862002040400000) . If BRAKE warning lamp does not illuminate, go to next step.
2. Depress parking brake. If BRAKE warning lamp does not illuminate, go to «TEST 73C»(ref-138303-S33128105542002040400000) . If BRAKE warning lamp illuminates, release parking brake. Crank engine while monitoring BRAKE warning lamp. If BRAKE warning lamp does not illuminate, go to «TEST 73D»(ref-138303-S02116698382002040400000) . If BRAKE warning lamp illuminates, system is currently operating properly.

TEST 73B - OPEN BRAKE FLUID LEVEL SWITCH CIRCUIT

Note. Perform TEST 73A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect brake fluid level switch connector. Brake fluid level switch connector is located at brake fluid reservoir. Connect jumper wire between brake fluid level switch connector terminals. Turn ignition on. If BRAKE warning lamp illuminates, replace brake fluid level switch. If BRAKE warning lamp does not illuminate, disconnect jumper wire. Go to next step.
2. Connect jumper wire between ground and terminal No. 2 (Gray/Black wire) on brake fluid level switch connector. If BRAKE warning lamp illuminates, repair open Black wire. If BRAKE warning lamp does not illuminate, go to next step.
3. Leave jumper wire connected. Turn ignition off. Disconnect instrument cluster Gray connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 6 (Gray/Black wire) on instrument cluster Gray connector. If resistance is 5 ohms or greater, repair open Gray/Black wire. If resistance is less than 5 ohms, go to next step.
4. Remove and inspect BRAKE warning lamp. Replace lamp if necessary. If lamp is okay, repair or replace instrument cluster. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.

TEST 73C - OPEN PARKING BRAKE SWITCH CIRCUIT

Note. Perform TEST 73A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect parking brake switch connector. Connector is located above brake pedal bracket. Connect jumper wire between ground and parking brake switch connector (Gray/Black wire). If BRAKE warning lamp illuminates, replace parking brake switch. If BRAKE warning lamp does not illuminate, go to next step.
2. Leave jumper wire connected. Turn ignition off. Disconnect instrument cluster Gray connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 6 (Gray/Black wire) on instrument cluster Gray connector. If resistance is 5 ohms or greater, repair open Gray/Black wire. If resistance is less than 5 ohms, go to next step.
3. Remove and inspect BRAKE warning lamp. Replace lamp if necessary. If lamp is okay, repair or replace instrument cluster. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.

TEST 73D - OPEN PARKING BRAKE SWITCH CIRCUIT

Note. Perform TEST 73A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Disconnect instrument cluster Gray connector. Remove and inspect BRAKE warning lamp. Replace lamp if necessary. If lamp is okay, depress parking brake. Place gear shift lever in Drive. Go to next step.
2. Using scan tool in ohmmeter mode, measure resistance at terminal No. 6 (Gray/Black wire) on instrument cluster Gray connector while cranking engine. If resistance is less than 5 ohms, repair or replace instrument cluster as necessary. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If resistance is 5 ohms or greater, go to next step.
3. Disconnect ignition switch connector. (Scheme 17) Using an external ohmmeter, measure resistance between terminal No. 6 (Gray/Black wire) on instrument cluster Gray connector and terminal No. 7 on ignition switch connector. If resistance is 5 ohms or greater, repair open Gray/Black wire. If resistance is less than 5 ohms, replace ignition switch.

TEST 73E - SHORTED PARKING BRAKE CIRCUIT

Note. Perform TEST 73A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Check and adjust brake fluid level as necessary. Disconnect parking brake switch connector. Connector is located above brake pedal bracket. If BRAKE warning lamp does not illuminate, replace parking brake switch. If BRAKE warning lamp illuminates, go to next step.
2. Disconnect brake fluid level switch connector. Brake fluid level switch connector is located at brake fluid reservoir. If BRAKE warning lamp does not illuminate, replace brake fluid level switch. If BRAKE warning lamp illuminates, go to next step.
3. Turn ignition off. Disconnect instrument cluster Gray connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 6 (Gray/Black wire) on instrument cluster Gray connector. If resistance is 5 ohms or greater, repair or replace instrument cluster as necessary. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section. If resistance is less than 5 ohms, go to next step.
4. Disconnect ignition switch connector. (Scheme 17) Using scan tool in ohmmeter mode, measure resistance at terminal No. 6 (Gray/Black wire) on instrument cluster Gray connector. If resistance is less than 5 ohms, repair short to ground in Gray/Black wire. If resistance is 5 ohms or greater, replace ignition switch.

TEST 74A - GAUGES DO NOT GO TO ZERO WITH KEY OFF

Note. Perform TEST 54A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Turn ignition off. Disconnect instrument cluster Black connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 8 (Pink/Red wire) on instrument cluster Black connector. If voltage is 10 volts or less, repair open Pink/Red wire. If voltage is more than 10 volts, replace instrument cluster.

TEST 75A - IDENTIFYING KEY-IN LAMP PROBLEMS

Diagnosis of key-in lamp system is separated into 2 categories. Identify problem area(s) listed in TEST 75A DIAGNOSTIC DIRECTORY table and perform the indicated test(s).

TEST 75A DIAGNOSTIC DIRECTORY

TEST 76A - INOPERATIVE KEY-IN LAMP

Note. Perform TEST 75A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Close all doors, wait 60 seconds. Open and close left front door. If key-in lamp illuminates, then goes off after 30 seconds, system is operating properly at this time. If key-in lamp does not illuminate, and courtesy lamps do not illuminate when left front door is open, go to «TEST 34A»(ref-138303-S16936976942002040400000) . If courtesy lamps illuminate when left front door is open, go to next step.
2. Turn ignition on. Using scan tool, actuate key-in lamp. If key-in lamp flashes on and off, replace BCM. If key-in lamp does not flash on and off, go to next step.
3. Using scan tool, stop key-in lamp actuation. Remove key-in lamp and inspect key-in lamp and socket. If lamp is open or socket is damaged, repair as necessary. If lamp and socket are okay, go to next step.
4. Reinstall key-in lamp. Disconnect key-in lamp connector (on steering column). Using scan tool in voltmeter mode, measure voltage at terminal No. 1 (Pink wire) on key-in lamp connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
5. Reconnect key-in lamp connector. Disconnect Body Control Module (BCM) Bone connector. BCM is located behind right kick panel. Using scan tool in voltmeter mode, measure voltage at terminal No. 5 (Yellow/Red wire) on BCM Bone connector. If voltage is more than 10 volts, replace BCM. If voltage is 10 volts or less, go to next step.
6. Disconnect key-in lamp connector (on steering column). Using an external ohmmeter, measure resistance between terminal No. 2 (Yellow/Red wire) on key-in lamp connector and terminal No. 5 on BCM Bone connector. If resistance is 5 ohms or greater, repair open Yellow/Red wire. If resistance is less than 5 ohms, replace key-in lamp assembly.

TEST 77A - KEY-IN LAMP ON CONSTANTLY

Note. Perform TEST 75A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Turn ignition off. Disconnect Body Control Module (BCM) Bone connector. If key-in lamp goes off, replace BCM. If key-in lamp does not go off, repair short to ground in Yellow/Red wire.

TEST 78A - DIAGNOSING MESSAGE CENTER

Note. Perform SYMPTOM ID TEST 1A before proceeding with this test. For connector ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Diagnosis of the message center system is separated into 6 categories. Identify problem area(s) listed in TEST 78A DIAGNOSTIC DIRECTORY table and perform the indicated test(s).

TEST 78A DIAGNOSTIC DIRECTORY

TEST 79A - LOW WASHER FLUID LAMP CIRCUIT

Note. Perform TEST 78A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Wait 60 seconds. Check if washer fluid reservoir is full. Add washer fluid as necessary. If washer fluid reservoir is low and low washer fluid lamp does not come on, go to «TEST 79B»(ref-138303-S31807348722002040400000) . If washer fluid reservoir is full, go to next step.
2. Turn ignition on. Wait 60 seconds and observe message center. If low washer fluid lamp does not come on, system is operating properly at this time. If low washer fluid lamp comes on, go to next step.
3. Using scan tool, read washer fluid status. If scan tool displays WASH FLUID: OK, go to step 6). If scan tool does not display WASH FLUID: OK, go to next step.
4. Disconnect washer fluid level switch connector from bottom of washer fluid reservoir. If scan tool displays WASH FLUID: OK, replace washer fluid level switch. If scan tool does not display WASH FLUID: OK, go to next step.
5. Turn ignition off. Disconnect Body Control Module (BCM) Gray connector. BCM is located behind right kick panel. Using scan tool in ohmmeter mode, measure resistance at terminal No. 17 (Black/Tan wire) on BCM Gray connector. If resistance is less than 5 ohms, repair short to ground in Black/Tan wire. If resistance is 5 ohms or greater, replace BCM.
6. Turn ignition off. Disconnect Body Control Module (BCM) Bone connector. Turn ignition on. Observe message center. If low washer fluid lamp comes on, repair short to ground in Red wire. If low washer fluid lamp does not come on, replace BCM.

TEST 79B - INOPERATIVE LOW WASHER FLUID LAMP

Note. Perform TEST 78A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, actuate low washer fluid lamp. If low washer fluid lamp toggles on then off, go to step 6). If low washer fluid lamp does not toggle on then off, go to next step.
2. Using scan tool, stop low washer fluid lamp actuation. Disconnect message center connector. Connector is located under left side of dash, near instrument cluster connector. Remove and inspect low washer fluid lamp. If lamp is open, replace low washer fluid lamp. If lamp is okay, go to next step.
3. Ensure ignition switch is in ON position. Using scan tool in voltmeter mode, measure voltage at terminal No. 4 (Dark Blue/White wire) on message center connector. If voltage is 10 volts or less, repair open Dark Blue/White wire. If voltage is more than 10 volts, go to next step.
4. Reinstall low washer fluid lamp. Reconnect message center connector. Connect jumper wire between ground and terminal No. 6 (Red wire) on message center connector. If low washer fluid lamp does not illuminate, replace message center. If low washer fluid lamp illuminates, go to next step.
5. Turn ignition off. Disconnect Body Control Module (BCM) Bone connector. BCM is located behind right kick panel. Connect jumper wire between ground and terminal No. 6 (Red wire) on BCM Bone connector. Turn ignition on. If low washer fluid lamp does not illuminate, repair open Red wire. If low washer fluid lamp illuminates, replace BCM.
6. Using scan tool, stop low washer fluid lamp actuation. Disconnect washer fluid level connector from bottom of washer fluid reservoir. Connect jumper wire between washer fluid level connector terminals. Go to next step.
7. Using scan tool, read washer fluid switch status. If scan tool displays WASH FLUID: LOW, replace washer fluid level switch. If scan tool does not display WASH FLUID: LOW, disconnect jumper wire. Go to next step.
8. Connect jumper wire between ground and terminal No. 2 (Black/Tan wire) on washer fluid level connector. If scan tool displays WASH FLUID: LOW, repair open Black/Tan wire. If scan tool does not display WASH FLUID: LOW, go to next step.
9. Gain access to Body Control Module (BCM). BCM is located behind right kick panel. Leave BCM connectors connected. Connect jumper wire between ground and terminal No. 17 (Black/Tan wire) on BCM Gray connector. If scan tool displays WASH FLUID: LOW, repair open Black/Tan wire. If scan tool does not display WASH FLUID: LOW, replace BCM.

TEST 80A - DOOR AJAR LAMP CIRCUIT

Note. Perform TEST 78A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Close all doors. Using scan tool, read left front door ajar status. If scan tool displays LF DOOR AJAR: CLOSED, go to «TEST 39B»(ref-138303-S10892539412002040400000) . If scan tool does not display LF DOOR AJAR: CLOSED, go to next step.
2. Using scan tool, read door ajar status. If scan tool displays DOOR AJAR: CLOSED, go to «TEST 40B»(ref-138303-S01955053742002040400000) . If scan tool does not display DOOR AJAR: CLOSED, go to next step.
3. Open left front door. Using scan tool, read left front door ajar status. If scan tool displays LF DOOR AJAR: OPEN, go to «TEST 39A»(ref-138303-S05134413122002040400000) . If scan tool does not display LF DOOR AJAR: OPEN, go to next step.
4. Using scan tool, read door ajar status. While observing scan tool, open and close all doors except left front door. If scan tool door ajar status does not change each time a door is opened or closed, go to «TEST 34A»(ref-138303-S16936976942002040400000) . If door ajar status changes each time a door is opened or closed, go to next step.
5. Ensure all doors are closed. If door ajar lamp does not illuminate, go to step 7). If door ajar lamp illuminates, go to next step.
6. Disconnect Body Control Module (BCM) Gray connector. BCM is located behind right kick panel. If door ajar lamp does not illuminate, replace BCM. If door ajar lamp illuminates, repair short to ground in Pink/Black wire.
7. Turn ignition on. Disconnect message center connector. Connector is located under left side of dash, near instrument cluster connector. Remove and inspect message center door ajar lamp. If lamp is open, replace lamp. If lamp is okay, go to next step.
8. Using scan tool in voltmeter mode, measure voltage at terminal No. 4 (Dark Blue/White wire) on message center connector. If voltage is 10 volts or less, repair open Dark Blue/White wire. If voltage is more than 10 volts, go to next step.
9. Turn ignition off. Disconnect BCM Gray connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 1 (Pink/Black wire) on message center connector. If voltage is more than 0.1 volt, repair short to voltage in Pink/Black wire and replace BCM. If voltage is 0.1 volt or less, go to next step.
10. Using an external ohmmeter, measure resistance between terminal No. 9 (Pink/Black wire) on BCM Gray connector and terminal No. 1 on message center connector. If resistance is 5 ohms or greater, repair open Pink/Black wire. If resistance is less than 5 ohms, go to next step.
11. Inspect circuit board behind message center. If circuit board is damaged, replace circuit board. If circuit board is okay, replace BCM.

TEST 81A - DIAGNOSING OVERHEAD TRAVEL INFORMATION SYSTEM (OTIS)

Note. Perform SYMPTOM ID TEST 1A - IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Connect scan tool to Data Link Connector (DLC). DLC is located under instrument cluster, next to center console. If Overhead Travel Information System (OTIS) is blank or if scan tool displays NO RESPONSE, go to «TEST 82A»(ref-138303-S01879778762002040400000) . If OTIS screen is not blank and scan tool does not display NO RESPONSE, go to next step.
2. Using scan tool, select OTIS AUTO SELF TEST. If any OTIS segment fails to illuminate, or OTIS screen displays FAIL or CCD, replace OTIS module. If OTIS segments illuminate, and OTIS screen does not display FAIL or CCD, go to next step.
3. Rotate instrument cluster dimmer control to low. If OTIS does not respond to instrument cluster dimmer control, replace OTIS module. If OTIS responds to dimmer control, go to next step.
4. Check if compass is inoperative or wrong. If compass is operating properly, go to step 6). If compass is inoperative or wrong, go to next step.
5. 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.
6. Determine problem with OTIS and perform appropriate test listed in DIAGNOSING OTIS table.

DIAGNOSING OTIS

TEST 82A - BLANK SCREEN OR NO RESPONSE CONDITION ON OTIS

Note. Perform SYMPTOM ID TEST 1A - IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS or TEST 81A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Disconnect OTIS 4-pin connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 3 (Black/Light Green wire) on OTIS 4-pin 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.
2. Turn ignition on. Using scan tool in voltmeter mode, measure voltage at terminal No. 4 (Dark Blue/White wire) on OTIS 4-pin connector. If voltage is 10 volts or less, repair open Dark Blue/White wire. If voltage is more than 10 volts, go to next step.
3. Connect jumper wire between ground and terminal No. 1 (White/Black wire) on OTIS 4-pin connector. Using scan tool, read CCD bus status. If scan tool does not display BUS SHORTED TO GROUND, repair open White/Black wire. If scan tool displays BUS SHORTED TO GROUND, disconnect jumper wire. Go to next step.
4. Connect jumper wire between ground and terminal No. 2 (Violet/Brown wire) on OTIS 4-pin connector. If scan tool does not display BUS SHORTED TO GROUND, repair open Violet/Brown wire. If scan tool displays BUS SHORTED TO GROUND, replace OTIS module.

TEST 83A - OTIS AMBIENT TEMPERATURE SENSOR

Note. Perform SYMPTOM ID TEST 1A - IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS or TEST 81A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, read outside temperature. If scan tool does not display 185°F, go to step 4). If scan tool displays 185°F, go to next step.
2. Disconnect ambient (outside) temperature sensor connector. Sensor is located behind front bumper, left of center. Turn ignition off, then back on. If scan tool temperature display drops to -70°F, replace ambient temperature sensor. If scan tool temperature display does not drop to-70°F, go to next step.
3. Turn ignition off. Disconnect Body Control Module (BCM) Gray connector. BCM is located behind right kick panel. Using scan tool in ohmmeter mode, measure resistance at terminal No. 10 (Violet/Light Green wire) on BCM Gray connector. If resistance is less than 100 ohms, repair short to ground in Violet/Light Green wire. If resistance is 100 ohms or greater, replace BCM.
4. Disconnect ambient (outside) temperature sensor connector. Sensor is located behind front bumper, left of center. If scan tool does not display -70°F, go to «TEST 84A»(ref-138303-S12716848132002040400000) . If scan tool displays -70°F, go to next step.
5. Connect a jumper wire between ambient temperature sensor connector terminals. Turn ignition off, then back on. Using scan tool, read outside temperature. If scan tool displays 183°F, replace ambient temperature sensor. If scan tool does not display 183°F, go to next step.
6. Connect jumper wire between ground and terminal No. 2 (Violet/Light Green wire) on ambient temperature sensor connector. Turn ignition off, then back on. If scan tool displays 183°F, go to step 8). If scan tool does not display 183°F, go to next step.
7. Leave jumper wire connected. Turn ignition off. Disconnect Body Control Module (BCM) Gray connector. BCM is located behind right kick panel. Using scan tool in ohmmeter mode, measure resistance at terminal No. 10 (Violet/Light Green wire) on BCM Gray connector. If resistance is 5 ohms or greater, repair open Violet/Light Green wire. If resistance is less than 5 ohms, replace BCM.
8. Turn ignition off. Disconnect Body Control Module (BCM) Bone connector. BCM is located behind right kick panel. Connect a jumper wire between ground and terminal No. 1 (Gray/Tan wire) on ambient temperature sensor connector. Go to next step.
9. Using scan tool in ohmmeter mode, measure resistance at terminal No. 15 (Gray/Tan wire) on BCM Bone connector. If resistance is 5 ohms or greater, repair open Gray/Tan wire. If resistance is less than 5 ohms, replace BCM.

TEST 84A - OTIS AMBIENT TEMPERATURE SENSOR

Note. Perform TEST 81A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect and remove ambient temperature sensor. Sensor is located behind front bumper, left of center. Using external ohmmeter, measure resistance between sensor terminals and compare with the «AMBIENT TEMPERATURE SENSOR SPECIFICATIONS»(ref-138303-S26597850662002040400000) table. Go to next step. AMBIENT TEMPERATURE SENSOR SPECIFICATIONS K/Ohms Ambient Temperature 29.3-36.0 32°F (0°C) 18.0-22.0 50°F (10°C) 11.4-13.6 68°F (20°C) 9.1-10.8 77°F (25°C) 7.4-8.7 86°F (30°C) 4.9-5.7 104°F (40°C) 3.3-3.8 122°F (50°C)
2. If resistance measurement does not correspond with the «AMBIENT TEMPERATURE SENSOR SPECIFICATIONS»(ref-138303-S26597850662002040400000) 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 (Gray/Tan wire) on ambient temperature connector. If resistance is 30 ohms or greater, go to next step. If resistance is less than 30 ohms, go to «TEST 84B»(ref-138303-S13798650512002040400000) .
4. Connect jumper wire between ground and terminal No. 1 (Gray/Tan wire) on ambient sensor connector. Ensure ignition is off. Disconnect Body Control Module (BCM) Bone connector. BCM is located behind right kick panel. Go to next step.
5. Using scan tool in ohmmeter mode, measure resistance at terminal No. 15 (Gray/Tan wire) on BCM Bone connector. If resistance is less than 5 ohms, replace BCM. If resistance is 5 ohms or greater, repair open Gray/Tan wire.

TEST 84B - INCORRECT AMBIENT TEMPERATURE READING

Note. Perform TEST 84A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect Body Control Module (BCM) Bone and Gray connectors. BCM is located behind right kick panel. Using scan tester in ohmmeter mode, measure resistance at terminal No. 15 (Gray/Tan wire) on BCM Bone connector. If resistance is less than 500 k/ohms, repair Gray/Tan wire for partial short to ground. If resistance is 500 k/ohms or greater, go to next step.
2. Using scan tester in ohmmeter mode, measure resistance at terminal No. 10 (Violet/Light Green wire) on BCM Gray 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, go to next step.
3. Using external ohmmeter, measure resistance between terminal No. 15 (Gray/Tan wire) on BCM Bone connector and terminal No. 10 (Violet/Light Green wire) on BCM Gray connector. If resistance is less than 500 k/ohms, repair Violet/Light Green wire for short to Gray/Tan wire. If resistance is 500 k/ohms or greater, replace BCM.

TEST 85A - TESTING OTIS MILEAGE & DISTANCE FUNCTIONS

Note. Perform TEST 81A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, read Body Control Module (BCM) DTCs. If scan tool displays NO VEHICLE SPEED SENSOR SIGNAL, see TESTS W/CODES article in the ENGINE PERFORMANCE section. If scan tool does not display NO VEHICLE SPEED SENSOR SIGNAL, go to next step.
2. If scan tool displays THROTTLE POSITION SENSOR VOLTAGE HIGH, see TESTS W/CODES article in the ENGINE PERFORMANCE section. If scan tool does not display THROTTLE POSITION SENSOR VOLTAGE HIGH, go to next step.
3. If scan tool displays THROTTLE POSITION SENSOR VOLTAGE LOW, see TESTS W/CODES article in the ENGINE PERFORMANCE section. If scan tool does not display THROTTLE POSITION SENSOR VOLTAGE LOW, replace BCM.

TEST 86A - TESTING OTIS SWITCHES

Note. Perform TEST 81A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Leave key in ignition switch. Open left front door. If chime does not sound, go to «TEST 33A»(ref-138303-S05822410472002040400000) . If chime sounds, go to next step.
2. Turn ignition on. Close left front door. Press each OTIS button and listen for beep. If beep is not heard, replace OTIS module. If beep is heard, switches are currently working properly.

TEST 87A - IDENTIFYING DOOR LOCK PROBLEM

Note. Perform TEST 81A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. If vehicle is equipped with Remote Keyless Entry (RKE) module, go to «TEST 95A»(ref-138303-S02134162422002040400000). To locate RKE module (Scheme 18) If vehicle is not equipped with RKE module, open front windows. Close all doors. Go to next step. 2) Lock and unlock both front doors at door lock switches. If doors fail to lock or unlock properly, perform appropriate test listed in TEST 87A DIAGNOSTIC DIRECTORY table. If doors lock and unlock properly, go to next step. TEST 87A DIAGNOSTIC DIRECTORY Complaint Perform All Doors Fail To Lock/Unlock From Any Switch «TEST 88A»(ref-138303-S26267208082002040400000) One Door Fails To Lock/Unlock From Any Switch «TEST 89A»(ref-138303-S42203257172002040400000) All Doors Fail To Lock/Unlock From One Switch «TEST 90A»(ref-138303-S18202754212002040400000) All Doors Fail To Lock From Any Switch «TEST 91A»(ref-138303-S08312194512002040400000) All Doors Fail To Lock From One Switch (1) All Doors Fail To Unlock From Any Switch «TEST 92A»(ref-138303-S20011324742002040400000) All Doors Fail To Unlock From One Switch (1) (1) Replace defective switch.
2. Turn ignition off. Leave key in ignition switch. Open left front door. Lock doors from any switch. If doors lock, go to «TEST 93A»(ref-138303-S05896239412002040400000). If doors do not lock, go to next step.
3. If vehicle is equipped with speed sensitive locks, drive vehicle with all doors closed. Reach a vehicle speed greater than 15 MPH. If doors do not lock, go to «TEST 94A»(ref-138303-S21465082272002040400000). If doors lock, system is operating properly at this time.

TEST 88A - ALL DOORS FAIL TO LOCK & UNLOCK FROM ANY SWITCH

Note. Perform TEST 87A or 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, actuate door lock relay. If doors do not lock, go to «TEST 88B»(ref-138303-S16946348552002040400000) . If doors lock, use scan tool to read door lock switch voltage. If voltage is more than 0.2 volt, go to «TEST 88C»(ref-138303-S26229506312002040400000) . If voltage is 0.2 volt or less, go to next step.
2. Using scan tool, read door lock switch voltage while depressing a door lock switch to LOCK position. If voltage is more than 1.7 volts, replace Body Control Module (BCM). BCM is located behind right kick panel. If voltage is 1.7 volts or less, go to next step.
3. Turn ignition off. Disconnect BCM Bone connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 9 (Orange/Violet wire) while depressing any door lock switch. If voltage is more than 10 volts, replace BCM. If voltage is 10 volts or less, go to next step.
4. Remove right front door trim panel. Disconnect door lock switch connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 4 (Pink wire) on door lock switch connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
5. Using scan tool in ohmmeter mode, measure resistance at terminal No. 1 (Orange/Violet wire) on door lock switch connector. If resistance is less than 5 ohms, repair short to ground in Orange/Violet wire. If resistance is 5 ohms or greater, go to next step.
6. Connect jumper wire between terminals No. 1 (Orange/Violet wire) and No. 4 (Pink wire) on door lock switch connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 9 (Orange/Violet wire) on BCM Bone connector. If voltage is 10 volts or less, repair open Orange/Violet wire. If voltage is more than 10 volts, replace both front door switches.

TEST 88B - ALL DOORS FAIL TO LOCK & UNLOCK FROM ANY SWITCH

Note. Perform TEST 88A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, read door lock switch voltage. If voltage is more than 0.2 volt, go to «TEST 88C»(ref-138303-S26229506312002040400000). If voltage is 0.2 volt or less, remove door lock relay and door unlock relay from junction block. (Scheme 19) Junction block is located behind end cover, on left side of instrument panel. Go to next step.
2. Using scan tool in voltmeter mode, measure voltage at terminal "B" (Red wire) on door lock relay socket. If voltage is 10 volts or less, repair open Red wire. If voltage is more than 10 volts, go to next step.
3. Using scan tool in ohmmeter mode, measure resistance at terminals "D" (Black wire), and "E" (Black wire) on door lock relay socket and door unlock relay socket. If resistance is 5 ohms or greater at any terminal, repair open Black wire. If resistance is less than 5 ohms, go to next step.
4. Using an external ohmmeter, measure resistance between component terminals "A" and terminal "D" on door lock relay and door unlock relay. If resistance is more than 5 ohms, replace relay. If resistance is less than 5 ohms, go to next step.
5. Using an external ohmmeter, measure resistance between component terminals "C" and terminal "E" on door lock relay and door unlock relay. If resistance is not 65-85 ohms, replace relay. If resistance is 65-85 ohms, go to next step.
6. Disconnect Remote Keyless Entry (RKE) module. (Scheme 18) Using scan tool in ohmmeter mode, measure resistance at terminal "A" (Orange/Black wire) on door lock relay socket. If resistance is less than 5 ohms, repair short to ground in Orange/Black wire. If resistance is 5 ohms or greater, go to next step.
7. Measure resistance at terminal "A" (Pink/Black wire) on door unlock relay connector. If resistance is less than 5 ohms, repair short to ground in Pink/Black wire. If resistance is 5 ohms or greater, go to next step.
8. Reinstall door unlock relay. Measure resistance at terminal "A" (Orange/Black wire) on door lock relay socket. If resistance is 5 ohms or greater, repair open Orange/Black wire. If resistance is less than 5 ohms, go to next step.
9. Gain access to Body Control Module (BCM). BCM is located behind right kick panel. Leave BCM connectors connected. Using test light, backprobe terminal No. 18 (Orange/White wire) on BCM Gray connector. Using scan tool, actuate door lock relay. If test light flashes, repair open Orange/White wire. If test light does not flash, go to next step.
10. Stop relay actuation. Turn ignition off. Disconnect and inspect BCM Gray connector. Repair connector as necessary. If connector is okay, replace BCM.

TEST 88C - SHORTED SWITCH CIRCUIT

Note. Perform TEST 88B or 91A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Remove left front door trim panel. Disconnect door lock switch connector. Using scan tool, read door lock switch voltage. If voltage is 0.2 volt or less, replace left front door lock switch. If voltage is more than 0.2 volt, go to next step.
2. Remove right front door trim panel. Disconnect door lock switch connector. Using scan tool, read door lock switch voltage. If voltage is 0.2 volt or less, replace right front door lock switch. If voltage is more than 0.2 volt, go to next step.
3. Turn ignition off. Disconnect Body Control Module (BCM). BCM is located behind right kick panel. Using scan tool in voltmeter mode, measure voltage at terminal No. 9 (Orange/Violet wire) on BCM Bone connector. If voltage is more than 0.2 volt, repair short to voltage in Orange/Violet wire. If voltage is 0.2 volt or less, replace BCM.

TEST 89A - ONE DOOR FAILS TO LOCK & UNLOCK FROM ANY SWITCH

Note. Perform TEST 87A or 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Remove key from ignition switch. Remove appropriate door trim panel. Inspect linkage from door lock to door latch. Repair linkage as necessary. If linkage is okay, go to next step.
2. Disconnect door lock motor connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 1 (Orange/Black wire) on door lock motor connector. Depress door lock switch to LOCK position. If voltage is 10 volts or less, repair open Orange/Black wire. If voltage is more than 10 volts, go to next step.
3. Measure voltage at terminal No. 2 (Pink/Black wire) on door lock motor connector. Depress door lock switch to UNLOCK position. If voltage is 10 volts or less, repair open Pink/Black wire. If voltage is more than 10 volts, replace door lock motor.

TEST 90A - ALL DOORS FAIL TO LOCK & UNLOCK FROM ONE SWITCH

Note. Perform TEST 87A or 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Remove appropriate door trim panel. Disconnect door lock switch connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 4 (Pink wire) on door lock switch connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
2. Connect jumper wire between terminals No. 1 (Orange/Violet wire) and No. 4 (Pink wire) on door lock switch connector. Using scan tool, read door lock switch voltage. If voltage is 8 volts or less, repair open Orange/Violet wire. If voltage is more than 8 volts, replace door lock switch.

TEST 91A - ALL DOORS FAIL TO LOCK FROM ANY SWITCH

Note. Perform TEST 87A or 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, read door lock switch voltage. If voltage is more than 0.2 volt, go to «TEST 88C»(ref-138303-S26229506312002040400000). If voltage is 0.2 volt or less, remove door lock relay from junction block. (Scheme 19) Junction block is located behind end cover, on left side of instrument panel. Go to next step.
2. Using scan tool, actuate door lock relay. Using test light, measure voltage at terminal "C" (Orange/White wire) on door lock relay connector. If test light does not flash, go to step 5). If test light flashes, go to next step.
3. Stop relay actuation. Remove door unlock relay. Using scan tool in ohmmeter mode, measure resistance at terminal "D" (Black wire) on door unlock relay connector. If resistance is 5 ohms or greater, repair open Black wire. If resistance is less than 5 ohms, go to next step.
4. Using an external ohmmeter, measure resistance between terminals "A" (Pink/Black wire) and "D" (Black wire) on door unlock relay connector. If resistance is 5 ohms or greater, replace door unlock relay. If resistance is less than 5 ohms, replace door lock relay.
5. Gain access to Body Control Module (BCM). BCM is located behind right kick panel. Leave BCM connectors connected. Using test light, backprobe terminal No. 18 (Orange/White wire) on BCM Gray connector. Using scan tool, actuate door lock relay. If test light flashes, repair open Orange/White wire. If test light does not flash, go to next step.
6. Stop actuation. Turn ignition off. Disconnect BCM Gray connector. Disconnect Remote Keyless Entry (RKE) module. (Scheme 18) Using scan tool in ohmmeter mode, measure resistance at terminal No. 18 (Orange/White wire) on BCM Gray connector. If resistance is less than 5 ohms, repair short to ground in Orange/White wire. If resistance is 5 ohms or greater, replace BCM.

TEST 92A - ALL DOORS FAIL TO UNLOCK FROM ANY SWITCH

Note. Perform TEST 87A or 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Remove door unlock relay from junction block. (Scheme 19) Junction block is located behind end cover, on left side of instrument panel. Using scan tool, actuate door unlock relay. Go to next step.
2. Using test light, probe terminal "C" (Pink/Violet wire) on door unlock relay socket. If test light does not flash, go to step 5). If test light flashes, go to next step.
3. Stop actuation. Remove door lock relay. Using scan tool in ohmmeter mode, measure resistance at terminal "D" (Black wire) on door lock relay connector. If resistance is 5 ohms or greater, repair open Black wire. If resistance is less than 5 ohms, go to next step.
4. Using an external ohmmeter, measure resistance between component terminals "A" (Orange/Black wire) and "D" (Black wire) on door lock relay. If resistance is 5 ohms or greater, replace door lock relay. If resistance is less than 5 ohms, replace door unlock relay.
5. Gain access to Body Control Module (BCM). BCM is located behind right kick panel. Leave BCM connectors connected. Using test light, backprobe terminal No. 21 (Pink/Violet wire) on BCM Gray connector. Using scan tool, actuate door unlock relay. If test light flashes, repair open Pink/Violet wire. If test light does not flash, go to next step.
6. Stop actuation. Turn ignition off. Disconnect BCM Gray connector. Disconnect Remote Keyless Entry (RKE) module. (Scheme 18) Using scan tool in ohmmeter mode, measure resistance at terminal No. 21 (Pink/Violet wire) on BCM Gray connector. If resistance is less than 5 ohms, repair short to ground in Pink/Violet wire. If resistance is 5 ohms or greater, replace BCM.

TEST 93A - REPAIRING INOPERATIVE DOOR LOCK INHIBIT SWITCH

Note. Perform TEST 87A or 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Open left front door. Using scan tool, read left front door ajar status. If scan tool does not display LF DOOR AJAR: CLOSED, go to «TEST 39A»(ref-138303-S05134413122002040400000). If scan tool displays LF DOOR AJAR: CLOSED, go to next step.
2. Using scan tool, read key in ignition status. If scan tool displays KEY IN IGN: CLOSED, replace Body Control Module (BCM). If scan tool does not display KEY IN IGN: CLOSED, go to next step.
3. Disconnect ignition switch connector. (Scheme 17) Using scan tool in ohmmeter mode, measure resistance at terminal No. 4 (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.
4. Connect a jumper wire between terminals No. 4 (Black wire) and No. 6 (Light Blue wire) on ignition switch connector. Using scan tool, read key in ignition switch 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.
5. With BCM connectors connected, backprobe jumper wire between ground and terminal No. 20 (Light Blue wire) on BCM Bone connector. Using scan tool, read key in ignition status. If scan tool displays KEY IN IGN: CLOSED, repair open Light Blue wire. If scan tool does not display KEY IN IGN: CLOSED, go to next step.
6. Turn ignition off. Disconnect and inspect BCM bone connector. Repair connector as necessary. If connector is okay, replace BCM.

TEST 94A - DIAGNOSING AUTOMATIC SPEED SENSITIVE DOOR LOCKS

Note. Perform TEST 87A or 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, read Automatic (AUTO) door lock status. If scan tool does not display AUTO DOOR LOCKS ARE ENABLED, use scan tool to enable door locks. If scan tool displays AUTO DOOR LOCKS ARE ENABLED, ensure all doors are close. Go to next step.
2. Using scan tool, read left front door ajar status. If scan tool displays LF DOOR AJAR: CLOSED, go to «TEST 39B»(ref-138303-S10892539412002040400000) . If scan tool does not display LF DOOR AJAR: CLOSED, go to next step.
3. Using scan tool, read door ajar status. If scan tool displays DOOR AJAR: CLOSED, go to «TEST 40B»(ref-138303-S01955053742002040400000) . If scan tool does not display DOOR AJAR: CLOSED, go to next step.
4. Turn ignition on. Using scan tool, select system test. If scan tool displays PCM INACTIVE ON BUS, go to «TEST 114A»(ref-138303-S27816358042002040400000) . If scan tool does not display PCM INACTIVE ON BUS, go to next step.
5. Using scan tool, read ENGINE INFO. If TPS percentage does not increase as throttle is opened, see TESTS W/CODES article in the ENGINE PERFORMANCE section. If TPS percentage increases as throttle is opened, go to next step.
6. Raise and support vehicle. Ensure traction control is off (if equipped). Close all doors. Start engine and shift vehicle into Drive. Using scan tool, read ENGINE INFO. If MPH does not increase as throttle is opened, see TESTS W/CODES article in the ENGINE PERFORMANCE section. If MPH increases as throttle is opened and doors lock, system is operating properly at this time. If doors do not lock, replace BCM.

TEST 95A - IDENTIFYING POWER DOOR LOCK & REMOTE KEYLESS ENTRY PROBLEM

Note. Perform TEST 87A or 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Lower both front windows. Remove key from ignition switch. Close all doors. Lock and unlock doors from both front door switches. If doors fail to lock or unlock properly, perform appropriate test listed in TEST 95A DIAGNOSTIC DIRECTORY table. If doors lock and unlock properly, go to next step. TEST 95A DIAGNOSTIC DIRECTORY Problem Perform All Doors Fail To Lock & Unlock From Any Switch «TEST 88A»(ref-138303-S26267208082002040400000) All Locks Fail To Operate Correctly, Trunk May Open Or Fail To Close On Lock Command «TEST 102B»(ref-138303-S09558928092002040400000) One Door (1) Fails To Lock & Unlock From Any Switch «TEST 89A»(ref-138303-S42203257172002040400000) All Doors Fail To Lock & Unlock From One Switch «TEST 90A»(ref-138303-S18202754212002040400000) All Doors Fail To Lock From Any Switch «TEST 91A»(ref-138303-S08312194512002040400000) All Doors Fail To Lock From One Switch (2) All Doors Fail To Unlock From Any Switch «TEST 92A»(ref-138303-S20011324742002040400000) All Doors Fail To Unlock From One Switch (2) Left Front Door Fails To Lock & Unlock From Any Switch «TEST 96A»(ref-138303-S26858699142002040400000) Left Front Door Fails To Lock From Any Switch «TEST 97A»(ref-138303-S39155355762002040400000) Left Front Door Fails To Unlock From Any Switch «TEST 98A»(ref-138303-S33463203022002040400000) All Doors (1) Fail To Lock & Unlock «TEST 99A»(ref-138303-S12674216242002040400000) All Doors (1) Fail To Lock «TEST 100A»(ref-138303-S14232019102002040400000) All Doors (1) Fail To Unlock «TEST 101A»(ref-138303-S14508711752002040400000) (1) Except left front door. (2) Replace defective switch.
2. Using Remote Keyless Entry (RKE) transmitter, operate door locks and trunk lock. If door locks and trunk lock do not operate properly, replace transmitter batteries or substitute a known-good transmitter. If RKE transmitter still does not operate properly, go to «TEST 102A»(ref-138303-S34923470932002040400000) . If RKE transmitter operates properly, go to next step.
3. Insert key in ignition switch. Open left front door. Lock doors from either switch. If doors lock with key in ignition switch, go to «TEST 93A»(ref-138303-S05896239412002040400000) . If doors do not lock with key in ignition switch, go to next step.
4. If vehicle is equipped with speed sensitive locks, drive vehicle with all doors closed. Reach a vehicle speed more than 15 MPH. If doors do not lock at more than 15 MPH, go to «TEST 94A»(ref-138303-S21465082272002040400000) . If doors lock, system is operating properly at this time.

TEST 96A - LEFT FRONT DOOR FAILS TO LOCK & UNLOCK FROM ANY SWITCH

Note. Perform TEST 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Remove key from ignition switch. Gain access to Remote Keyless Entry (RKE) module. (Scheme 18) Disconnect RKE module Black connector. Go to next step.
2. Using scan tool in ohmmeter mode, measure resistance at terminal "H" (Black wire) on RKE module Black connector. If resistance is 5 ohms of greater, repair open Black wire. If resistance is less than 5 ohms, go to next step.
3. Connect jumper wire between terminals "G" (Pink/Black wire) and "H" (Black wire) on RKE module Black connector. Depress left front door lock switch to LOCK position. If left front door lock operates, replace RKE module. If left front door lock does not operate, go to next step.
4. Remove jumper cable. Using scan tool in voltmeter mode, measure voltage at terminal "A" (Pink wire) on RKE module Black connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
5. Measure voltage at terminal "C" (Orange/White wire) on RKE module Black connector. Depress and hold door lock switch to LOCK position. If voltage is 10 volts or less, repair open Orange/White wire. If voltage is more than 10 volts, go to next step.
6. Release door lock switch. Measure voltage at terminal "E" (Pink/Violet wire) on RKE module Black connector. Depress and hold door lock switch to UNLOCK position. If voltage is 10 volts or less, repair open Pink/Violet wire. If voltage is more than 10 volts, go to next step.
7. Reconnect RKE module Black connector. Using scan tool in voltmeter mode, backprobe terminal "G" (Pink/Black wire) on RKE module Black connector. Depress and hold door lock switch to UNLOCK position. If voltage is 10 volts or less, replace RKE module. If voltage is more than 10 volts, go to next step.
8. Release lock switch. Remove left front door trim panel. Disconnect left front door lock motor connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 1 (Orange/Black wire) on left front door lock motor connector. Depress and hold door lock switch to LOCK position. If voltage is 10 volts or less, repair open Orange/Black wire. If voltage is more than 10 volts, go to next step.
9. Release lock switch. Measure voltage at terminal No. 2 (Pink/Violet wire) on door lock motor connector. Depress door lock switch to UNLOCK position. If voltage is 10 volts or less, repair open Pink/Violet wire. If voltage is more than 10 volts, replace door lock motor.

TEST 97A - LEFT FRONT DOOR LOCK PROBLEM

Note. Perform TEST 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Gain access to Remote Keyless Entry (RKE) module. (Scheme 18) Disconnect RKE module Black connector. Go to next step.
2. Connect jumper wire between terminals "G" (Pink/Black wire) and "H" (Black wire) on RKE module Black connector. Remove key from ignition switch. Depress left front door lock switch to LOCK position. If left front door lock operates, replace RKE module. If left front door lock does not operate, repair open Black wire.

TEST 98A - LEFT FRONT DOOR UNLOCK PROBLEM WITH REMOTE KEYLESS ENTRY (RKE)

Note. Perform TEST 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Gain access to Remote Keyless Entry (RKE) module. (Scheme 18) Disconnect RKE module Black connector. Go to next step.
2. Using scan tool in voltmeter mode, measure voltage at terminal "A" (Pink wire on RKE module Black connector). 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 at terminal "E" (Pink/Violet wire) on RKE module Black connector. Depress and hold left front door lock switch to UNLOCK position. If voltage is 10 volts or less, repair open Pink/Violet wire. If voltage is more than 10 volts, replace RKE module.

TEST 99A - ALL DOORS (EXCEPT LEFT FRONT) FAIL TO LOCK & UNLOCK

Note. Perform TEST 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Remove door unlock relay from junction block. (Scheme 19) Junction block is located behind end cover, on left side of instrument panel. Go to next step.
2. Using scan tool in ohmmeter mode, measure resistance at terminal "A" (Pink/Black wire) on door unlock relay socket. If resistance is 10 ohms or greater, repair open Pink/Black wire. If resistance is less than 10 ohms, go to next step.
3. Measure resistance at terminals "D" (Black wire) and "E" (Black wire) on door unlock relay socket. If resistance is 5 ohms or greater in either wire, repair appropriate open Black wire. If resistance is less than 5 ohms, replace unlock relay.

TEST 100A - ALL DOORS (EXCEPT LEFT FRONT) FAIL TO LOCK

Note. Perform TEST 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Remove key from ignition switch. Remove door lock relay from junction block. (Scheme 19) Junction block is located behind end cover, on left side of instrument panel. Go to next step.
2. Using scan tool in ohmmeter mode, measure resistance at terminal "E" (Black wire) on door lock relay socket. If resistance is 5 ohms or greater, repair open Black wire. If resistance is less than 5 ohms, go to next step.
3. Using scan tool in voltmeter mode, measure voltage at terminal "C" (Orange/White wire) on door lock relay socket. Depress and hold door lock switch to LOCK position. If voltage is 10 volts or less, repair open Orange/White wire. If voltage is more than 10 volts, replace door lock relay.

TEST 101A - ALL DOORS (EXCEPT LEFT FRONT) FAIL TO UNLOCK

Note. Perform TEST 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Remove door unlock relay from junction block. (Scheme 19) Junction block is located behind end cover, on left side of instrument panel. Go to next step.
2. Using scan tool in ohmmeter mode, measure resistance at terminal "E" (Black wire) on door unlock relay socket. If resistance is 5 ohms or greater, repair open Black wire. If resistance is less than 5 ohms, go to next step.
3. Using scan tool in voltmeter mode, measure voltage at terminal "C" (Pink/Violet wire) on door unlock relay socket. Depress and hold door lock switch to UNLOCK position. If voltage is 10 volts or less, repair open Pink/Violet wire. If voltage is more than 10 volts, replace door unlock relay.

TEST 102A - REMOTE KEYLESS ENTRY PROBLEM

Note. Perform TEST 95A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Determine problem with Remote Keyless Entry (RKE) system and perform appropriate test listed in DIAGNOSING RKE SYSTEM table.

DIAGNOSING RKE SYSTEM

TEST 102B - PROBLEM WITH REMOTE KEYLESS ENTRY

Note. Perform TEST 102A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Gain access to Remote Keyless Entry (RKE) module. (Scheme 18) Disconnect RKE module Black connector. Go to next step.
2. Using scan tool in ohmmeter mode, measure resistance at terminal "H" (Black wire) on RKE Black connector. If resistance is less than 5 ohms, replace RKE module. If resistance is 5 ohms or greater, repair open Black wire.

TEST 102D - PROGRAMMING RKE TRANSMITTER

Note. Perform TEST 102A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. When RKE module is put in programming mode, all transmitters that will be used must be programmed. Ensure transmitter(s) have good batteries. Go to next step.
2. Using scan tool, select PROGRAM RKE under MISCELLANEOUS. If door locks cycle, go to next step. This indicates that module is in programming mode. If door do not cycle, inspect enable circuit. Repair as needed. If enable circuit is okay, replace RKE module.
3. Press any button on transmitter. Locks will cycle. Press any button on additional transmitter (if applicable). Locks will cycle. Exit PROGRAM RKE on scan tool. Turn ignition off.

TEST 102E - REMOTE KEYLESS ENTRY PROBLEM

Note. Perform TEST 102A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Gain access to Remote Keyless Entry (RKE) module. (Scheme 18) Turn ignition off and remove key. Disconnect RKE module Black connector. Turn ignition on. Go to next step.
2. Using scan tool in voltmeter mode, measure voltage at terminal "A" (Pink wire) on RKE module Black connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
3. Using scan tool in ohmmeter mode, measure resistance at terminal "D" (Dark Green wire) on RKE module Black connector. If resistance is 1500 ohms or less, repair short to ground in Dark Green wire. If resistance is more than 1500 ohms, go to next step.
4. Using scan tool in voltmeter mode, measure voltage at terminal "G" (Pink/Black wire) on RKE module Black connector. Press and hold door lock switch in LOCK position. If voltage is 10 volts or less, repair open Pink/Black wire. If voltage is more than 10 volts, go to next step. Release door lock switch.
5. Measure voltage at terminal "E" (Pink/Violet wire) on RKE module Black connector. Press and hold door lock switch in UNLOCK position. If voltage is 10 volts or less, repair open Pink/Violet wire. If voltage is more than 10 volts, go to next step. Release door lock switch.
6. Measure voltage at terminal "C" (Orange/White wire) on RKE module Black connector. Press and hold door lock switch in LOCK position. If voltage is 10 volts or less, repair open Orange/White wire. If voltage is more than 10 volts, replace RKE module.

TEST 102F - INOPERATIVE RKE HORN CHIRP

Note. Perform TEST 102A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Note. Horn chirp may have been cancelled when transmitters were previously programmed.

1. Reprogram all transmitters. See «TEST 102D»(ref-138303-S06124653472002040400000). Gain access to Remote Keyless Entry (RKE) module. (Scheme 18) Connect test light between terminals "A" (Pink wire) and "B" (Black/Red wire) on RKE Black connector. Go to next step.
2. Depress horn button on steering wheel. If test light flashed, replace RKE module. If test light did not flash, repair open Black/Red wire.

TEST 102G - CANCELING RKE HORN CHIRP

Note. Perform TEST 102A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition on. Ensure shifter is in Park position. Using scan tool, select PROGRAM RKE under MISCELLANEOUS. If door locks cycle, go to next step. This indicates that module is in programming mode. If door locks do not cycle, inspect enable circuit. Repair as needed. If enable circuit is okay, replace RKE module.
2. Press any button on transmitter. Locks will cycle. Press any button on additional transmitter (if applicable). Locks will cycle. Press transmitter LOCK, then UNLOCK button 3 times.
3. Each time UNLOCK button is pressed, the locks will cycle and trunk will unlock. Exit programming mode. To reinstate horn chirp, reprogram all transmitters.

TEST 102H - CHANGING REAR RELEASE TO SINGLE BUTTON DEPRESS

Note. Perform TEST 102A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition on. Ensure shifter is in Park position. Using scan tool, select PROGRAM RKE under MISCELLANEOUS. If door locks cycle, go to next step. This indicates that module is in programming mode. If door locks do not cycle, inspect enable circuit. Repair as needed. If enable circuit is okay, replace RKE module.
2. Press any button on transmitter. Locks will cycle. Press any button on additional transmitter (if applicable). Locks will cycle. Press transmitter UNLOCK button 6 times.
3. Horn will sound 2 chirps. Exit programming mode. To reinstate horn chirp, reprogram all transmitters.

TEST 103A - DIAGNOSING WIPER SYSTEM PROBLEMS

Note. Perform SYMPTOM ID TEST 1A - IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Diagnosis of the wiper system is separated into 8 categories. With ignition switch in ON position, operate wiper system in following modes: High Speed Low Speed Intermittent Speed Wash Mode (Wipers Off)
2. Identify problem area(s) listed in TEST 103A DIAGNOSTIC TEST DIRECTORY table and perform indicated test(s) in order listed.

TEST 103A DIAGNOSTIC TEST DIRECTORY

TEST 104A - WIPER SWITCH, CONTROLLER & POWER SUPPLY

Note. Perform TEST 103A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS . Drive vehicle to update OTIS and perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, actuate wiper motor low speed test. If wiper motor operates in low speed mode, go to «TEST 104B»(ref-138303-S17257698972002040400000). If wiper motor does not operate in low speed mode, go to next step.
2. Stop wiper motor low speed mode actuation test. Using scan tool, actuate wiper motor high speed test. If wiper motor operates in high speed mode, go to «TEST 104B»(ref-138303-S17257698972002040400000). If wiper motor does not operate in high speed mode, go to next step.
3. Stop high speed mode actuation test. Access Power Distribution Center (PDC). PDC is located on left front fender apron. Inspect "E" cartridge fuse in PDC. (Scheme 20) If fuse is blown, go to «TEST 104C»(ref-138303-S06696557322002040400000). If fuse is okay, go to next step.
4. Remove "E" cartridge fuse from PDC. Using scan tool in voltmeter mode, measure voltage on "E" cartridge fuse connector (Black wire). If voltage is less than 10 volts, repair open Black wire between "E" cartridge fuse and battery positive terminal. If voltage is more than 10 volts, go to next step.
5. Install "E" cartridge fuse. Remove intermittent wiper relay (relay No. 6) from PDC. Using scan tool in voltmeter mode, measure voltage on intermittent wiper relay socket terminal "D" (Red/Dark Blue wire). If voltage is 10 volts or less, repair open Red/Dark Blue wire between fuse "E" and ON/OFF wiper relay. If voltage is more than 10 volts, go to next step.
6. Connect a jumper wire between terminals "B" (Light Green/Black wire) and "D" (Red/Dark Blue wire) on ON/OFF wiper relay socket. If wiper motor operates, go to «TEST 104D»(ref-138303-S02659723632002040400000). If wiper motor does not operate, go to next step.
7. Remove HI/LO wiper relay (relay No. 10) from PDC. Ensure jumper wire is still connected between terminals "B" (Light Green/Black wire) and "D" (Red/Dark Blue wire) on ON/OFF wiper relay socket. Using scan tool in voltmeter mode, measure voltage at terminal "B" (Light Green/Black wire) on HI/LO wiper relay socket. If voltage is 10 volts or less, repair open Light Green/Black wire between intermittent wiper relay and HI/LO wiper relay. If voltage is more than 10 volts, go to next step.
8. Remove jumper wire from intermittent wiper relay terminals. Connect jumper wire between terminal "D" (Red/Yellow wire) on intermittent wiper relay socket and terminal "E" (Brown/White wire) on HI/LO wiper relay socket. If wiper motor does not operate in low speed mode, go to «TEST 104E»(ref-138303-S37168470282002040400000). If wiper motor operates in low speed mode, replace HI/LO wiper relay.

TEST 104B - WIPER SWITCH MODE SENSE CIRCUIT

Note. Perform TEST 104B before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Stop wiper motor actuation test. Using scan tool, read ON/OFF (intermittent) wiper sensor status. Observe scan tool while gradually moving wiper switch from off to high position. If scan tool displays more than INTRMT WIPE: 0V (zero volts), replace Body Control Module (BCM). If scan tool displays INTRMT WIPE: 0V (zero volts), go to next step.
2. Disconnect multifunction switch connector. Connector is located on upper part of steering column, behind trim cover. Using scan tool in voltmeter mode, measure voltage at terminal No. 3 (Dark Blue wire) on multifunction switch connector. If voltage is less than 10 volts, repair open Dark Blue wire between switch and fuse No. 10. If voltage is more than 10 volts, go to next step.
3. Disconnect BCM Bone connector. BCM is located behind right kick panel. Using scan tool in ohmmeter mode, measure resistance at terminal No. 16 (Dark Green/Red wire) of BCM Bone connector. If resistance is less than 5 ohms, repair short to ground in Dark Green/Red wire. If resistance is 5 ohms or greater, go to next step.
4. Using an external ohmmeter, measure resistance between terminal No. 1 (Dark Green/Red wire) on switch connector and terminal No. 16 on BCM Bone connector. If resistance is 5 ohms or greater, repair open Dark Green/Red wire between multifunction switch and BCM. If resistance is less than 5 ohms, go to next step.
5. Reconnect multifunction switch connector. Turn wiper switch to low or high position. Using scan tool in voltmeter mode, backprobe terminal No. 16 (Dark Green/Red wire) on multifunction switch connector. If voltage is 10 volts or less, replace multifunction switch. If voltage is more than 10 volts, replace BCM.

TEST 104C - WIPER MOTOR OUTPUT CIRCUIT SHORT

Note. Perform TEST 104A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Remove ON/OFF (intermittent) wiper relay (relay No. 6) and HI/LO wiper relay (relay No.10) from Power Distribution Center (PDC). (Scheme 20) PDC is located on left front fender apron. Using scan tool in ohmmeter mode, measure resistance at terminal "D" (Red/Dark Blue wire) on intermittent wiper relay socket. If resistance is less than 5 ohms, repair short to ground in Red/Dark Blue wire and replace fuse "E". If resistance is 5 ohms or greater, go to next step.
2. Using scan tool in ohmmeter mode, measure resistance at terminal "B" (Light Green/Black wire) on intermittent wiper relay socket. If resistance is less than 5 ohms, repair short to ground in Light Green/Black wire and replace fuse "E". If resistance is 5 ohms or greater, go to next step.
3. Disconnect wiper motor connector. Connector is located on engine compartment firewall, just right of power brake booster. Using scan tool in ohmmeter mode, measure resistance at terminal "E" (Brown/White wire) on HI/LO wiper relay socket. If resistance is less than 5 ohms, repair short to ground in Brown/White wire and replace fuse "E". If resistance is 5 ohms or greater, go to next step.
4. Using scan tool in ohmmeter mode, measure resistance at terminal "D" (Red/Yellow wire) on HI/LO wiper relay socket. If resistance is less than 5 ohms, repair short to ground in Red/Yellow wire and replace fuse "E". If resistance is 5 ohms or greater, replace wiper motor and replace "E" cartridge fuse.

TEST 104D - ON/OFF (INTERMITTENT) WIPER MOTOR RELAY & CONTROL CIRCUIT

Note. Perform TEST 104A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Remove jumper wire. Using scan tool in voltmeter mode, measure voltage at terminal "A" (Dark Blue wire) on socket. If voltage is less than 10 volts, go to «TEST 104F»(ref-138303-S41350434142002040400000) . If voltage is 10 volts or greater, go to next step.
2. Connect ON/OFF (intermittent) wiper relay. Access Body Control Module (BCM). BCM is located behind right kick panel. With BCM connectors connected, backprobe a jumper wire between ground and terminal No. 1 (Dark Green/Yellow wire) on BCM bone connector. If wiper motor operates, replace BCM. If wiper motor does not operate, go to next step.
3. Leave jumper wire connected. Remove intermittent wiper relay. Using an external ohmmeter, measure resistance between ground terminal "C" (Dark Green/Yellow wire) on intermittent relay socket. If resistance is less than 5 ohms, replace intermittent wiper relay. If resistance is 5 ohms or greater, repair open Dark Green/Yellow wire.

TEST 104E - INOPERATIVE WIPER MOTOR LOW SPEED

Note. Perform TEST 104A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect wiper motor connector. Connector is located on engine compartment firewall, just right of power brake booster. Ensure jumper wire is connected between terminal "D" (Red/Dark Blue wire) on ON/OFF (intermittent) wiper relay (relay No. 6) socket and terminal "E" (Brown/White wire) on HI/LO wiper relay (relay No. 10) in Power Distribution Center (PDC). PDC is located on left front fender apron. Go to next step.
2. Using scan tool in voltmeter mode, measure voltage at terminal No. 4 (Brown/White wire) on wiper motor connector. If voltage is 10 volts or less, repair open Brown/White wire between HI/LO wiper relay and wiper motor. If voltage is more than 10 volts, go to next step.
3. Using scan tool in ohmmeter mode, measure resistance at terminal No. 3 (Black wire) on wiper motor connector. If resistance is 5 ohms or greater, repair open Black wire. If resistance is less than 5 ohms, replace wiper motor.

TEST 104F - WIPER SWITCH POWER SUPPLY

Note. Perform TEST 104D before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Remove and inspect fuse No. 10 in junction block. (Scheme 19) Junction block is located behind end cover, on left side of instrument panel. If fuse is blown, go to «TEST 104G»(ref-138303-S08705727412002040400000). If fuse is not blown, go to next step.
2. Using scan tool in voltmeter mode, measure voltage at ignition switch output terminal (Black/White wire) on fuse No. 10. If voltage is more than 10 volts, repair open Dark Blue wire (fused ignition switch output circuit). If voltage is 10 volts or less, repair open Black/White wire.

TEST 104G - WIPER SWITCH POWER SUPPLY SHORT TO GROUND

Note. Perform TEST 104F before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Disconnect multifunction switch connector. Connector is located on upper part of steering column, behind trim cover. Using scan tool in ohmmeter mode, measure resistance at terminal No. 3 (Dark Blue wire) on multifunction switch connector. If resistance is less than 5 ohms, repair short to ground in Dark Blue wire and replace fuse No. 10. If resistance is 5 ohms or greater, go to next step.
2. Using an external ohmmeter, measure resistance between component terminals "A" and "C" on HI/LO wiper relay. If resistance is less than 10 ohms, replace HI/LO wiper relay and fuse No. 10. If resistance is 10 ohms or greater, go to next step.
3. Using an external ohmmeter, measure resistance between component terminals "A" and "C" on ON/OFF (intermittent) wiper relay. If resistance is less than 10 ohms, replace intermittent wiper relay and fuse No. 10. If resistance is 10 ohms or greater, replace multifunction switch and fuse No. 10.

TEST 108A - OPEN PARK SWITCH SENSE CIRCUIT

Note. Perform SYMPTOM ID TEST 1A - IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS or TEST 103A before proceeding with this test. For connector ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Place wiper switch in intermittent speed position. Using scan tool, read wiper park switch status. Observe scan tool closely, up to 30 seconds, during the following steps. If scan tool reading toggles between WIPER PK SW CLOSED and WIPER PK SW OPEN, system is operating properly. Clear DTCs and try to reproduce fault. If scan tool reading does not toggle at least once, go to next step.
2. Turn ignition off. Gain access to Body Control Module (BCM). BCM is located behind right kick panel. Leave BCM connectors connected. Using scan tool in voltmeter mode, backprobe terminal No. 2 (Tan/Red wire) on BCM Bone connector. Turn wiper switch to low speed. Observe scan tool display during wiper operation. If voltage pulsates, replace BCM. If voltage does not pulsate, go to next step.
3. Turn ignition off. Disconnect scan tool probe. With BCM connectors connected, backprobe a jumper wire between terminal No. 2 (Tan/Red wire) on BCM Bone connector and ground. Go to next step.
4. Disconnect wiper motor connector. Connector is located on engine compartment firewall, just right of power brake booster. Using an external ohmmeter, measure resistance between ground and terminal No. 1 (Tan/Red wire) on wiper motor connector. If resistance is 5 ohms or greater, repair open Tan/Red wire. If resistance is less than 5 ohms, replace wiper motor.

TEST 110A - WIPERS OPERATE IN HIGH SPEED ONLY

Note. Perform TEST 103A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Remove HI/LO wiper relay (relay No. 10) from Power Distribution Center (PDC). PDC is located on left front fender apron. (Scheme 20) Go to next step.
2. Substitute a known-good relay. Turn wipers on and observe wiper operation. If wipers operate properly in low and high speeds, replace original HI/LO wiper relay. If wipers do not operate properly, go to next step.
3. Turn ignition off. Disconnect Body Control Module (BCM) Bone connector. BCM is located behind right kick panel. Remove substitute HI/LO wiper relay. Go to next step.
4. Using scan tool in ohmmeter mode, measure resistance at terminal No. 18 (Violet wire) on BCM Bone connector. If resistance is less than 5 ohms, repair short to ground in Violet wire. If resistance is 5 ohms or greater, replace BCM.

TEST 111A - WIPERS OPERATE CONSTANTLY WITH IGNITION ON

Note. Perform TEST 103A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition on and wiper switch off. Using scan tool, read intermittent wiper voltage. If voltage is less than 1 volt, go to step 5). If voltage is more than 1 volt, go to next step.
2. Gain access to Body Control Module (BCM). BCM is located behind right kick panel. Turn ignition off. Disconnect BCM bone connector. Go to next step.
3. Turn ignition on. Using scan tool in voltmeter mode, measure voltage at terminal No. 16 (Dark Green/Red wire) on BCM Bone connector. If voltage is 10 volts or less, replace BCM. If voltage is more than 10 volts, go to next step.
4. Turn ignition off. Disconnect multifunction switch connector. Connector is located on upper part of steering column, behind trim cover. Turn ignition on. Measure voltage at terminal No. 16 (Dark Green/Red wire) on BCM Bone connector. If voltage is more than 10 volts, repair short to voltage in Dark Green/Red wire. If voltage is 10 volts or less, replace multifunction switch.
5. Turn ignition off. Remove intermittent wiper relay (relay No. 6) from Power Distribution Center (PDC). PDC is located on left front fender apron. (Scheme 20) If wipers still operate, go to step 9). If wipers stop operating, go to next step.
6. Substitute a known-good relay. Turn ignition on. If wipers do not operate constantly, replace original HI/LO wiper relay. If wipers operate constantly, go to next step.
7. Turn ignition off. Disconnect Body Control Module (BCM) Bone connector. BCM is located behind right kick panel. Turn ignition on. If wipers do not operate constantly, go to next step. If wipers operate constantly, repair Dark Green/Yellow wire between BCM and ON/OFF wiper relay.
8. Disconnect wiper motor connector. Connector is located on engine compartment firewall, just right of power brake booster. Using an external ohmmeter, measure resistance between ground and terminal No. 1 (Tan/Red wire) on wiper motor connector. If resistance is 1000 ohms or greater, go to next step. If resistance is less than 1000 ohms, repair open Tan/Red wire.
9. Connect BCM Bone connector. Turn ignition on. Using voltmeter, measure voltage between ground and terminal No. 1 (Tan/Red wire) on wiper motor connector. If voltage is 6 volts or less, replace BCM. If voltage is greater than 6 volts, repair Tan/Red wire for short to voltage.
10. Turn ignition off. Remove substitute HI/LO wiper relay. Turn ignition on. Using voltmeter, measure voltage between ground and terminal "B" (Light Green/Black wire) on HI/LO wiper relay socket. If voltage is 1 volt or less, go to next step. If voltage is greater than 1 volt, repair Light Green/Black wire for short to voltage. Replace HI/LO wiper relay and ON/OFF wiper relay.
11. Using voltmeter, measure voltage between ground and terminal "E" (Brown/White wire) on HI/LO wiper relay socket. If voltage is 1 volt or less, repair Red/Yellow wire (HI/LO wiper relay HI speed output circuit) for short to voltage. Replace HI/LO wiper relay and ON/OFF wiper relay. If voltage is greater than 1 volt, repair Brown/White wire for short to voltage. Replace HI/LO wiper relay and ON/OFF wiper relay.

TEST 112A - TESTING FUSED IGNITION SWITCH OUTPUT TO BODY CONTROL MODULE (BCM)

Note. Perform SYMPTOM ID TEST 1A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Remove and inspect fuse No. 14 from junction block. (Scheme 19) Junction block is located behind end cover, on left side of instrument panel. If fuse is open, go to step 4). If fuse is okay, go to next step.
2. Turn ignition off. Using scan tool in ohmmeter mode, measure resistance at fused ignition switch output terminal (Dark Blue/White wire) of fuse No. 14 terminal. If resistance is 5 ohms or greater, replace fuse. If resistance is less than 5 ohms, go to next step.
3. Disconnect Body Control Module (BCM) Bone connector. BCM is located behind right kick panel. Using scan tool in ohmmeter mode, measure resistance at terminal No. 13 (Dark Blue/White wire) on BCM Bone connector. If resistance is less than 5 ohms, repair short to ground in Dark Blue/White wire and replace fuse No. 14. If resistance is more than 5 ohms, replace BCM and replace fuse No. 14.
4. Using scan tool in voltmeter mode, measure voltage at ignition switch output terminal (Dark Blue wire) on fuse No. 14 terminal. If voltage is 10 volts or less, repair open Dark Blue wire. If voltage is more than 10 volts, reinstall fuse No. 14. Go to next step.
5. Turn ignition off. Disconnect Body Control Module (BCM) Bone connector. BCM is located behind right kick panel. Turn ignition on. Using scan tool in voltmeter mode, measure voltage at terminal No. 13 (Dark Blue/White wire) on BCM Bone connector. If voltage is 10 volts or less, repair open Dark Blue/White wire and replace fuse No. 14. If voltage is more than 10 volts, replace BCM.

TEST 113A - BODY CONTROL MODULE (BCM) NO RESPONSE CONDITION

Note. Perform SYMPTOM ID TEST 1A or 1B before proceeding with this test. For connector ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Disconnect Body Control Module (BCM) Bone connector. BCM is located behind right kick panel. Using scan tool in voltmeter mode, measure voltage at terminal No. 19 (Pink wire) on BCM Bone 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. 21 (Black wire) on BCM Bone connector. If resistance is 5 ohms or greater, repair open Black wire. If resistance is less than 5 ohms, go to next step.
3. Using scan tool in ohmmeter mode, measure resistance at terminal No. 14 (Black/Light Green wire) on BCM Bone connector. If resistance is 100 ohms or greater, repair open Black/Light Green wire. If resistance is less than 100 ohms, go to next step.
4. If this test is being conducted to check for BATTERY POWER TO MODULE DISCONNECTED trouble code, replace BCM. If testing is for a NO RESPONSE trouble code, go to next step.
5. Using an external ohmmeter, measure resistance between terminal No. 3 (Violet/Brown wire) on Data Link Connector (DLC) and terminal No. 8 on BCM Bone connector. If resistance is 5 ohms or greater, repair open Violet/Brown wire. If resistance is less than 5 ohms, go to next step.
6. Using an external ohmmeter, measure resistance between terminal No. 11 (White/Black wire) on DLC and terminal No. 7 on BCM Bone connector. If resistance is 5 ohms or greater, repair open White/Black wire. If resistance is less than 5 ohms, replace BCM.

TEST 114A - POWERTRAIN CONTROL MODULE NO RESPONSE CONDITION

Note. Perform TEST 15A in A/C-HEATER SYSTEM article in the AIR CONDITIONING & HEAT section, TEST 25A or 48A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Disconnect Powertrain Control Module (PCM) connector. PCM is located under air filter housing, in front of left front strut. Check PCM and connector terminals. Repair terminals as necessary. If terminals are okay, go to next step.
2. DO NOT disconnect scan tool from Data Link Connector (DLC). Using an external ohmmeter, measure resistance between terminal No. 26 (Violet/Brown wire) on PCM connector and terminal No. 3 on DLC. If resistance is 5 ohms or greater, repair open Violet/Brown wire. If resistance is less than 5 ohms, go to next step.
3. Measure resistance between terminal No. 46 (White/Black wire) on PCM connector and terminal No. 11 on DLC. If resistance is 5 ohms or greater, repair open White/Black wire. If resistance is less than 5 ohms, replace PCM.

TEST 115A - REPAIRING SCAN TOOL BLANK SCREEN

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

1. Turn ignition off. Disconnect scan tool from Data Link Connector (DLC). Using an external voltmeter, measure voltage between ground and terminal No. 16 (Pink wire) on DLC. If voltage is 10 volts or less, repair Pink wire as necessary. If voltage is more than 10 volts, go to next step.
2. Using an external ohmmeter, measure resistance between ground and terminal No. 4 (Black/Light Green wire) on DLC. If resistance is 20 ohms or greater, repair open Black/Light Green wire). If resistance is less than 20 ohms, go to next step.
3. Substitute a known-good scan tool cable. If scan tool display is not blank, replace defective scan tool cable. If scan tool display is blank, go to next step.
4. Substitute a known-good scan tool cartridge. If scan tool display is not blank, replace defective scan tool cartridge. If scan tool display is blank, replace scan tool.

TEST 141A - IDENTIFYING VEHICLE THEFT SECURITY SYSTEM (VTSS) PROBLEMS

Note. Perform SYMPTOM ID TEST 1A - IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. If VTSS indicator light stays on constant, perform «TEST 155A»(ref-138303-S22306594232002040400000) . Connect scan tool to Data Link Connector (DLC), located at right of steering column. Select THEFT ALARM. If scan tool screen is blank or displays a bus failure message, see «VEHICLE COMMUNICATIONS TESTS»(ref-138303-S02939324142002040400000) . If scan tool displays NO RESPONSE, go to «TEST 142A»(ref-138303-S25170158732002040400000) . If scan tool displays MONITOR DISPLAY, go to next step.
2. Using scan tool, select THEFT ALARM, and then MONITOR DISPLAY. Read Vehicle Theft Security System (VTSS) status. If VTSS status is not DISARMED, go to «TEST 141B»(ref-138303-S28300323512002040400000) . If VTSS status is DISARMED, go to next step.
3. Using scan tool, select BODY and then BODY CONTROLLER. Read Diagnostic Trouble Codes (DTCs). If BATTERY POWER TO MODULE fault message is displayed, see «VEHICLE COMMUNICATIONS TESTS»(ref-138303-S02939324142002040400000) . If scan tool does not display BATTERY POWER TO MODULE DTC, go to next step.
4. Using scan tool, select THEFT ALARM, MISCELLANEOUS, CHANGE MODE and then DIAGNOSTICS to put VTSS in diagnostics mode. If scan tool does not display PUT IGNITION IN OFF POSITION, go to «TEST 143A»(ref-138303-S29407011542002040400000) . If scan tool displays PUT IGNITION IN OFF POSITION, go to next step. NOTE: When theft alarm enters into diagnostics mode, horn should sound 2 times, and VTSS indicator light and headlights should flash. If horn fails to sound, go to «TEST 144A»(ref-138303-S26206279462002040400000) . If VTSS indicator light fails to flash, go to «TEST 145A»(ref-138303-S06439213722002040400000) . If headlights fail to flash, go to «TEST 146A»(ref-138303-S15728839542002040400000) .
5. Remove key from ignition switch. Open and close each door, depress power door lock switch to LOCK and UNLOCK positions, and rotate key in left and right front doors to UNLOCK position. If horn does not sound after each action, go to appropriate test. See VTSS DIAGNOSTIC TESTING table. VTSS DIAGNOSTIC TESTING Failed Component Perform Left Front Door «TEST 147A»(ref-138303-S18758475472002040400000) Right Front Door «TEST 148A»(ref-138303-S27988278242002040400000) Right Rear Door «TEST 149A»(ref-138303-S24932395172002040400000) Left Rear Door «TEST 150A»(ref-138303-S10614402192002040400000) Power Door Lock Switch Lock Position «TEST 151A»(ref-138303-S31817648402002040400000) Power Door Lock Switch Unlock Position «TEST 152A»(ref-138303-S30711520142002040400000) Left Front Door Key Cylinder «TEST 153A»(ref-138303-S34730974182002040400000) Right Front Door Key Cylinder «TEST 154A»(ref-138303-S02125977252002040400000)
6. Turn ignition switch to ON position. If horn sounds, go to next step. If horn does not sound, perform «TEST 143A»(ref-138303-S29407011542002040400000) .
7. Using scan tool, select THEFT ALARM and then MONITOR DISPLAY. Read VTSS status. If VTSS status is disarmed, system is okay. If VTSS status is other than DISARMED, perform «TEST 141B»(ref-138303-S28300323512002040400000) .
8. If scan tool displays that PCM is 1 NO RESPONSE/2 NO RESPONSE, perform «TEST 155A»(ref-138303-S22306594232002040400000) . If PCM is 1 NOT OK TO ARM VTSS/2 OK TO RUN ENGINE, replace Powertrain Control Module (PCM). If a problem with Remote Keyless Entry (RKE) is suspected, perform «TEST 156A»(ref-138303-S37490145232002040400000) .

TEST 141B - DISARMING VTSS SYSTEM

Note. Perform TEST 141A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. Turn ignition switch to OFF position. Rotate key in left front door to UNLOCK position. Turn ignition switch to ON position. Using scan tool, read VTSS status. If scan tool displays CURRENT MODE DISARMED, system is functioning properly. Go to «TEST 141A»(ref-138303-S27724405952002040400000) . If scan tool does not display CURRENT MODE DISARMED, go to next step.
2. Turn ignition off. Rotate key in left front door to UNLOCK position again. Turn ignition switch to ON position. Using scan tool, read VTSS status. If scan tool displays CURRENT MODE DISARMED, go to TEST 153A. If scan tool does not display CURRENT MODE DISARMED, replace Body Control Module (BCM).

TEST 142A - REPAIRING NO RESPONSE CONDITION

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

Note. Perform TEST 141A before proceeding with this test.

1. Turn ignition switch to OFF position. Disconnect Body Control Module (BCM) Black connector. Ensure connector is clean and undamaged. BCM is located behind right kick panel. Inspect terminal No. 24 (Violet/Yellow wire) on BCM Black connector. If terminal No. 24 does not have a wire, vehicle is not equipped with Vehicle Theft Security System (VTSS). If terminal No. 24 has a wire, go to next step.
2. Reconnect BCM connectors. Backprobe jumper wire between terminal No. 24 (Violet/Yellow wire) on BCM Black connector and ground. Turn ignition switch to ON position. Using scan tool, enable VTSS. If VTSS is not enabled, replace BCM. If VTSS is enabled, disconnect jumper wire and go to «TEST 141A»(ref-138303-S27724405952002040400000) .

TEST 143A - REPAIRING IGNITION CIRCUIT

Note. Perform TEST 141A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. Remove and inspect fuse No. 14. (Scheme 19) If fuse is okay, go to step 3). If fuse is open, turn ignition switch to OFF position. Using scan tool in ohmmeter mode, measure resistance at fused ignition terminal (Dark Blue wire) on fuse No. 14. If resistance is 5 ohms or greater, replace fuse. If resistance is less than 5 ohms, go to next step.
2. Disconnect Body Control Module (BCM) Bone connector. Ensure connector is clean and undamaged. Measure resistance at terminal No. 13 (Dark Blue/White wire) on BCM Bone connector. If resistance is less than 5 ohms, repair Dark Blue/White wire for short to ground. Replace fuse. If resistance is 5 ohms or greater, replace BCM and fuse No. 14.
3. Using scan tool in voltmeter mode, measure voltage at fused ignition terminal (Dark Blue wire) on fuse No. 14. If voltage is 10 volts or less, repair open Dark Blue wire. If voltage is more than 10 volts, go to next step.
4. Reinstall fuse No. 14. Turn ignition switch to OFF position. Disconnect BCM Bone connector. Ensure connector is clean and undamaged. Turn ignition switch to ON position, with engine off. Measure voltage at terminal No.13 (Dark Blue/White wire) on BCM Bone connector. If voltage is 10 volts or less, repair open Dark Blue/White wire. If voltage is more than 10 volts, replace BCM.

TEST 144A - REPAIRING HORN CIRCUIT

Note. Perform TEST 141A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. Depress horn button on steering wheel. If horn does not sound, go to step 4). If horn sounds, go to next step.
2. Using scan tool, read trunk key cylinder switch status. If scan tool does not display CLOSED, go to «TEST 144C»(ref-138303-S00256017232002040400000). If scan tool displays CLOSED, go to next step.
3. Turn ignition switch to OFF position. Disconnect Body Control Module (BCM) connectors. Ensure connector is clean and undamaged. BCM is located behind right kick panel. Using scan tool in voltmeter mode, measure voltage at terminal No. 8 (Black/Red wire) on BCM Black connector. If voltage is 10 volts or less, repair open Black/Red wire. If voltage is more than 10 volts, replace BCM.
4. Turn ignition switch to OFF position. Disconnect Body Control Module (BCM) connectors. Ensure connector is clean and undamaged. Connect jumper wire between terminal No. 8 (Black/Red wire) on BCM Black connector and ground. If horn sounds, replace BCM. If horn does not sound, go to next step.
5. Remove horn relay. (Scheme 19) Using scan tool in voltmeter mode, measure voltage at terminal "A" (Red wire) on horn relay connector. If voltage is 10 volts or less, go to «TEST 144B»(ref-138303-S26439897552002040400000). If voltage is more than 10 volts, go to next step.
6. Measure voltage at terminal "E" (Red wire) on horn relay connector. If voltage is 10 volts or less, repair open Red wire. If voltage is more than 10 volts, go to next step.
7. Using an external ohmmeter, measure resistance between terminal No. 8 (Black/Red wire) on BCM Black connector and terminal "C" on horn relay connector. If resistance is 5 ohms or greater, repair open Black/Red wire. If resistance is less than 5 ohms, go to next step.
8. Connect jumper wire between terminal "A" (Red wire) and terminal "B" (Dark Green/Red wire) on horn relay connector. If horn sounds, replace horn relay. If horn does not sound, repair open Dark Green/Red wire.

TEST 144B - REPAIRING BATTERY FEED CIRCUIT

Note. Perform TEST 144A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. Remove and inspect fuse No. 8. (Scheme 19) If fuse is open, go to step 3). If fuse is okay, go to next step.
2. Using scan tool in voltmeter mode, measure voltage at supply voltage terminal (Pink/White wire) on fuse No. 8 connector. If voltage is more than 10 volts, repair open fused voltage circuit (Red wire) on fuse No. 8. If voltage is 10 volts or less, repair open Pink/White wire.
3. Using scan tool in ohmmeter mode, measure resistance at terminal "A" (Red wire) on horn relay connector. If resistance is less than 5 ohms, repair short to ground in Red wire, and replace fuse. If resistance is 5 ohms or greater, replace fuse.

TEST 144C - REPAIRING TRUNK KEY CYLINDER SWITCH SENSE CIRCUIT

Note. Perform TEST 144A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. Disconnect trunk key cylinder switch connector. Ensure connector is clean and undamaged. Connect jumper wire across switch connector terminals. Using scan tool, read trunk key cylinder switch status. If scan tool displays CLOSED, replace trunk key cylinder switch. If scan tool does not display CLOSED, go to next step.
2. Connect jumper wire between trunk key cylinder switch connector Violet/Yellow wire and ground. If scan tool displays CLOSED, repair open Black wire. If scan tool does not display CLOSED, go to next step.
3. Locate Body Control Module (BCM) behind right kick panel. Connect jumper wire between BCM Black connector terminal No. 24 (Violet/Yellow wire) and ground. If scan tool displays CLOSED, repair open Violet/Yellow wire. If scan tool does not display CLOSED, replace BCM.

TEST 145A - REPAIRING VTSS INDICATOR LIGHT

Note. Perform TEST 141A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, read VTSS status. If scan tool displays engine controller 1) NO RESPONSE / 2) NO RESPONSE, go to «TEST 155A»(ref-138303-S22306594232002040400000) . If scan tool does not display engine controller 1) NO RESPONSE / 2) NO RESPONSE, go to next step.
2. If VTSS indicator light stays on constantly, go to «TEST 145B»(ref-138303-S13331006222002040400000) . If VTSS indicator light does not stay on, turn ignition switch to OFF position. Disconnect Body Control Module (BCM) Black connector. Ensure connector is clean and undamaged. BCM is located behind right kick panel. Connect jumper wire between terminal No. 10 (Black/Orange wire) on BCM Black connector and ground. If VTSS indicator light stays on, replace BCM. If indicator light does not stay on, go to next step.
3. Disconnect Automatic Temperature Control (ATC) Sun Sensor/VTSS indicator light connector. Ensure connector is clean and undamaged. Using scan tool in voltmeter mode, measure voltage at terminal No. 1 (Pink wire) on ATC Sun Sensor/VTSS indicator light connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
4. Using an external ohmmeter, measure resistance between terminal No. 10 (Black/Orange wire) on BCM Black connector and terminal No. 2 on ATC Sun Sensor/VTSS indicator light connector. If resistance is 5 ohms or greater, repair open Black/Orange wire. If resistance is less than 5 ohms, replace VTSS indicator light.

TEST 145B - REPAIRING VTSS INDICATOR LIGHT

Note. Perform TEST 144A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

Disconnect Body Control Module (BCM) Black connector. Ensure connector is clean and undamaged. BCM is located behind right kick panel. If VTSS indicator light does not stay on, replace BCM. If VTSS indicator light stays on, repair Black/Orange wire at terminal No. 10 for short to ground.

TEST 146A - REPAIRING HEADLIGHT CIRCUIT

Note. Perform TEST 141A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, read key in ignition switch status. If scan tool does not display CLOSED, go to «TEST 146C»(ref-138303-S39722066952002040400000). If scan tool displays CLOSED and parking lights do not flash, go to «TEST 146B»(ref-138303-S00479911482002040400000). If scan tool displays CLOSED and parking lights flash, go to next step.
2. Actuate headlight relay using scan tool. If headlights toggle on and off, replace Body Control Module (BCM). BCM is located behind right kick panel. If headlights do not toggle on and off, turn ignition switch to OFF position. Disconnect BCM Gray connector. Ensure connector is clean and undamaged. Go to next step.
3. Connect jumper wire between terminal No. 2 (Red/Dark Blue wire) on BCM Gray connector and ground. If headlights come on, replace BCM. If headlights do not come on, disconnect jumper wire. Go to next step.
4. Remove headlight delay relay. (Scheme 19) Using scan tool in voltmeter mode, measure voltage at terminal "A" (Red/White wire) on headlight delay relay connector. If voltage is 10 volts or less, repair open Red/White wire. If voltage is more than 10 volts, go to next step.
5. Measure voltage at terminal "C" (Red/White wire) on headlight delay relay connector. If voltage is 10 volts or less, repair open Red/White wire. If voltage is more than 10 volts, go to next step.
6. Connect jumper wire between terminals "A" (Red/White wire) and "B" (Light Green wire) on headlight delay relay connector. If headlights do not come on, repair open Light Green wire. If headlights come on, disconnect jumper wire and go to next step.
7. Using an external ohmmeter, measure resistance between terminal No. 2 (Red/Dark Blue wire) on BCM Gray connector and terminal "E" on headlight delay relay connector. If resistance is 5 ohms or greater, repair open Red/Dark Blue wire. If resistance is less than 5 ohms, replace headlight delay relay.

TEST 146B - REPAIRING PARKING LIGHT CIRCUIT

Note. Perform TEST 146A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, actuate parking light relay. If parking lights toggle on and off, replace Body Control Module (BCM). BCM is located behind right kick panel. If parking lights do not toggle on and off, turn ignition switch to OFF position. Disconnect BCM Gray connector. Ensure connector is clean and undamaged. Go to next step.
2. Connect jumper wire between terminal No 24 (Light Blue wire) on BCM Gray connector and ground. If parking lights illuminate, replace BCM. If parking lights do not illuminate, disconnect jumper wire. Go to next step.
3. Disconnect parking light relay. Relay is located behind dash, below headlight switch. Ensure connector is clean and undamaged. Using scan tool in voltmeter mode, measure voltage at terminal "B" (Pink/Red wire) on parking light relay connector. If voltage is 10 volts or less, repair open Pink/Red wire. If voltage is more than 10 volts, go to next step.
4. Measure voltage at terminal "C" (Pink/Red wire) on parking light relay connector. If voltage is 10 volts or less, repair open Pink/Red wire. If voltage is more than 10 volts, go to next step.
5. Connect jumper wire between terminals "B" (Pink/Red wire) and "D" (Black/Yellow wire) on parking light relay connector. If parking lights do not illuminate, repair open Black/Yellow wire. If parking lights illuminate, disconnect jumper wire and go to next step.
6. Using an external ohmmeter, measure resistance between terminal No. 24 (Light Blue wire) on BCM Gray connector and terminal "A" on parking light relay. If resistance is 5 ohms or greater, repair open Light Blue wire. If resistance is less than 5 ohms, replace parking light relay.

TEST 146C - REPAIRING KEY IN IGNITION CIRCUIT

Note. Perform TEST 146A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. Disconnect ignition switch connector. (Scheme 17) Ensure connector is clean and undamaged. Using scan tool in ohmmeter mode, measure resistance at terminal No. 4 (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. Connect jumper wire between terminals No. 4 (Black wire) and No. 6 (Light Blue wire) on ignition switch connector. Using scan tool, read key in ignition switch 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.
3. Backprobe jumper wire between terminal No. 20 (Light Blue wire) on Body Control Module (BCM) connector and ground. Using scan tool, read key in ignition switch 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.
4. Turn ignition switch to OFF position. Disconnect BCM Bone connector. Ensure connector is clean and undamaged. If any terminals are damaged, repair connector as necessary. If terminals are okay, replace BCM.

TEST 147A - REPAIRING LEFT FRONT DOOR AJAR SWITCH CIRCUIT

Note. Perform TEST 141A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

Ensure all doors are closed. Using scan tool, read left front door ajar switch status. If scan tool displays LFDOOR AJAR: CLOSED, go TEST 39B . If scan tool does not display LFDOOR AJAR: CLOSED, go to TEST 39A .

TEST 148A - REPAIRING RIGHT FRONT DOOR AJAR SWITCH CIRCUIT

Note. Perform TEST 141A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

Ensure all doors are closed. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, go TEST 40B . If scan tool does not display DOOR AJAR: CLOSED, go to TEST 40A.

TEST 149A - REPAIRING RIGHT REAR DOOR AJAR SWITCH CIRCUIT

Note. Perform TEST 141A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

Ensure all doors are closed. Using scan tool, read door ajar switch 6status. If scan tool displays DOOR AJAR: CLOSED, go TEST 40B . If scan tool does not display DOOR AJAR: CLOSED, go to TEST 42A .

TEST 150A - REPAIRING LEFT REAR DOOR AJAR SWITCH CIRCUIT

Note. Perform TEST 141A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

Ensure all doors are closed. Using scan tool, read door ajar switch status. If scan tool displays DOOR AJAR: CLOSED, go TEST 40B . If scan tool does not display DOOR AJAR: CLOSED, go to TEST 41A .

TEST 151A - DOOR LOCK SWITCH (LOCK) OUTPUT CIRCUIT

Note. Perform TEST 141A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

Turn ignition switch to ON position. Using scan tool, read door lock switch voltage. While monitoring scan tool, depress and hold door lock switch in LOCK position. If voltage is 1.6 volts or less, go to TEST 90A . If voltage is more than 1.6 volts, replace body control module.

TEST 152A - DOOR LOCK SWITCH (UNLOCK) OUTPUT CIRCUIT

Note. Perform TEST 141A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

Turn ignition switch to ON position. Using scan tool, read door lock switch voltage. While monitoring scan tool, depress and hold door lock switch in UNLOCK position. If voltage is 4.5 volts or less, go to TEST 90A . If voltage is more than 4.5 volts, replace body control module.

TEST 153A - REPAIRING VTSS DISARM CIRCUIT (LEFT DOOR)

Note. Perform TEST 141A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, read disarm signal voltage. If scan tool displays VOLTAGE 0, go to «TEST 153B»(ref-138303-S20256873672002040400000) . If scan tool does not display VOLTAGE 0, disconnect left front door key cylinder switch connector. Ensure connector is clean and undamaged. Go to next step.
2. Connect jumper wire across door key cylinder switch connector terminals. Using scan tool, read disarm signal voltage. If scan tool displays VOLTAGE 0, replace left front door key cylinder switch. If scan tool does not display VOLTAGE 0, disconnect jumper wire and go to next step.
3. Connect jumper wire between terminal No. 2 (Light Green/Orange wire) on door key cylinder switch connector and ground. If scan tool displays VOLTAGE 0, repair open ground circuit (Black wire). If scan tool does not display VOLTAGE 0, disconnect jumper wire and go to next step.
4. Backprobe jumper wire between terminal No. 3 (Light Green/Orange wire) on Body Control Module (BCM) Black connector and ground. If scan tool displays VOLTAGE 0, repair open Light Green/Orange wire. If scan tool does not display VOLTAGE 0, replace BCM.

TEST 153B - REPAIRING VTSS DISARM CIRCUIT

Note. Perform TEST 153A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. Disconnect left front door key cylinder switch connector. Using scan tool, read disarm signal voltage. If scan tool displays VBATT or 12 volts, replace left front key cylinder switch. If scan tool does not display VBATT or 12 volts, go to next step.
2. Disconnect right front door key cylinder switch connector. Ensure connector is clean and undamaged. Using scan tool, read disarm signal voltage. If scan tool displays VBATT or 12 volts, replace right front door key cylinder switch. If scan tool does not display VBATT or 12 volts, go to next step.
3. Disconnect Body Control Module (BCM) connector. BCM is located behind right kick panel. Ensure connector is clean and undamaged. Using scan tool in ohmmeter mode, measure resistance at terminal No. 3 (Light Green/Orange wire) on BCM Black connector. If resistance is less than 5 ohms, repair short to ground in Light Green/Orange wire. If resistance is more than 5 ohms, replace BCM.

TEST 154A - REPAIRING VTSS DISARM CIRCUIT (RIGHT DOOR)

Note. Perform TEST 141A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. Using scan tool, read disarm signal voltage. If scan tool displays VOLTAGE 0, go to «TEST 153B»(ref-138303-S20256873672002040400000) . If scan tool does not display VOLTAGE 0, disconnect right front door key cylinder switch connector. Ensure connector is clean and undamaged. Go to next step.
2. Connect jumper wire across door key cylinder switch connector terminals. Using scan tool, read disarm signal voltage. If scan tool displays VOLTAGE 0, replace right front door key cylinder switch. If scan tool does not display VOLTAGE 0, disconnect jumper wire and go to next step.
3. Connect jumper wire between terminal No. 2 (Light Green/Orange wire) on door key cylinder switch and ground. If scan tool displays VOLTAGE 0, repair open ground circuit (Black wire). If scan tool does not display VOLTAGE 0, disconnect jumper wire and go to next step.
4. Connect jumper wire between terminal No. 3 (Light Green/Orange wire) on Body Control Module (BCM) Black connector and ground. If scan tool displays VOLTAGE 0, repair open Light Green/Orange wire. If scan tool does not display VOLTAGE 0, replace BCM.

TEST 155A - NO RESPONSE FROM PCM

Note. Perform TEST 141A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. Turn ignition switch to OFF position. Disconnect Powertrain Control Module (PCM), located below air cleaner at right front corner of engine compartment. Ensure connector is clean and undamaged. Go to next step.
2. Connect a jumper wire between terminal No. 59 (Violet/Brown wire) on PCM connector and ground. Using scan tool, perform CCD bus test. If scan tool does not show bus short to ground, repair open Violet/Brown wire. If scan tool shows a short to ground, go to next step.
3. Remove jumper and connect a jumper between terminal No. 60 (White/Black wire) on PCM connector and ground. Using scan tool, perform CCD bus test. If scan tool does not show bus short to ground, repair open White/Black wire. If scan tool shows a short to ground, replace PCM.

TEST 156A - REPAIRING RKE ARM FUNCTION

Note. Perform TEST 141A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. If problem exists with disarm function, go to «TEST 156B»(ref-138303-S35380554772002040400000). If problem exists with arm function, turn ignition switch to OFF position. Disconnect Remote Keyless Entry (RKE) module connector. (Scheme 18) Ensure connector is clean and undamaged. Turn ignition switch to ON position. Go to next step.
2. Using external voltmeter, measure voltage between ground and terminal "A" (Pink wire) on RKE module connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step
3. Turn ignition switch to OFF position. Using external ohmmeter, measure resistance between ground and terminal "H" (Black wire) on RKE module connector. If resistance is 5 ohms or greater, repair open Black wire. If resistance is less than 15 ohms, go to next step.
4. Measure resistance between ground and terminal "C" (Orange/White wire) on RKE module connector. If resistance is less than 5 ohms, repair short to ground in Orange/White wire. If resistance is 5 ohms or greater, go to next step.
5. Ensure all doors are closed. Connect jumper wire between terminals "A" (Pink wire) and "C" (Orange/White wire) on RKE module connector. If Vehicle Theft Security System (VTSS) indicator light flashes, replace RKE module. If VTSS indicator light does not flash, remove jumper wire and go to next step.
6. Using external voltmeter, measure voltage between ground and terminal "C" (Orange/White wire) on RKE module. While monitoring voltage, depress door lock switch to LOCK position. If voltage is less than 9 volts, repair open Orange/White wire. If voltage is more than 9 volts, replace body control module.

TEST 156B - REPAIRING RKE DISARM FUNCTION

Note. Perform TEST 156A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-3A - VERIFICATION PROCEDURE after each repair.

1. Disconnect Remote Keyless Entry (RKE) module connector. (Scheme 18)in TEST 37A. Ensure connector is clean and undamaged. Using external voltmeter, measure voltage between ground and terminal "H" (White wire) on RKE module connector. If voltage is more than 4 volts, replace RKE module. If voltage is less than 4 volts, go to next step.
2. Using external ohmmeter, measure resistance between ground and terminal "H" (White wire) on RKE module connector. If resistance is less than 5 ohms, repair short to ground in White wire. If resistance is 5 ohms or greater, go to next step.
3. Access Body Control Module (BCM). With connectors connected, backprobe jumper wire between terminal No. 15 (White wire) on BCM Gray connector and ground. If courtesy lights illuminate, repair open White wire. If courtesy lights do not illuminate, replace BCM.

TEST VER-1 - VERIFICATION PROCEDURE

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS .

1. Reconnect all previously disconnected components and connectors. If neither battery nor Body Control Module (BCM) have been disconnected, and no work has been done on Automatic Temperature Control (ATC) system, ensure ignition is on and go to step 3). If battery or BCM have been disconnected, or if any work has been done on Automatic Temperature Control (ATC) system, go to next step.
2. DO NOT move vehicle in following step. Start engine. Using scan tool, calibrate ATC doors. Go to next step.
3. Using scan tool, erase DTCs. Turn ignition off and wait 5 seconds. Fully operate system that was malfunctioning by turning switch on, opening door, etc. If system operates properly, go to next step. If system does not operate properly, return to «SYMPTOM ID TEST 1A»(ref-138303-S35968194562002040400000) .
4. Using scan tool, read BCM DTCs. If any DTCs are present, return to «SYMPTOM ID TEST 1B»(ref-138303-S09392184722002040400000) . If no DTCs are present and original complaint cannot be duplicated, repair is complete.

TEST VER-3A - VERIFICATION PROCEDURE

Reconnect all previously disconnected components and connectors. Ensure all repairs have been made. Close all doors, trunk and hood. Open driver's door, and remove ignition key. Using power door lock, lock all doors and then close driver's door. If VTSS indicator light flashes, system is operational. If VTSS indicator does not flash, there is still a problem. Go to TEST 141A .

Test 132A - Bus Fault Messages

Battery must be fully charged before proceeding. Connect scan tool to Data Link Connector (DLC) to retrieve messages. Refer to the BUS FAULT MESSAGES table and proceed to appropriate test number.

BUS FAULT MESSAGES

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Test 133A - Bus Short To Battery

1. Turn ignition off. Disconnect Transmission Control Module (TCM), if equipped. TCM is located at left front corner of engine compartment. 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 under air cleaner. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to TEST 133B. If scan tool displays BUS SHORT TO BATTERY, go to next step.
3. Turn ignition off and disconnect anti-lock brake controller, if equipped. Controller is located on left fenderwell of engine compartment, behind anti-lock brake pump motor. If scan tool does not display BUS SHORT TO BATTERY, go to TEST 133E. If scan tool displays BUS SHORT TO BATTERY, go to next step.
4. Disconnect Overhead Traveler Information System (OTIS) module connector, if equipped. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to TEST 133D. If scan tool displays BUS SHORT TO BATTERY, go to next step.
5. Turn ignition off and disconnect auto temp control head connector, if equipped. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to TEST 133F. If scan tool displays BUS SHORT TO BATTERY, go to next step.
6. Turn ignition off and disconnect instrument cluster. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to TEST 133G. If scan tool displays BUS SHORT TO BATTERY, go to next step.
7. Disconnect Body Control Module (BCM) connectors. BCM is located behind right kick panel. Turn ignition on. If scan tool does not display BUS SHORT TO BATTERY, go to TEST 133C. If scan tool displays BUS SHORT TO BATTERY, go to next step.
8. Turn ignition off and wait 5 minutes. Disconnect Air Bag System 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. Disconnect scan tool from Data Link Connector (DLC). Using an external voltmeter, measure voltage on BCM Bone connector, terminal No. 8 (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 BCM Bone connector, terminal No. 7 (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.

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Test 133B - Bus Short To Battery

1. Using an external ohmmeter, measure resistance between Powertrain Control Module (PCM) connector, terminals No. 44 (Orange wire) and No. 59 (Violet/Brown wire). If resistance is less than 5 ohms, repair short between Orange/White wire and Violet/Brown wire. If resistance is 5 ohms or greater, go to next step.
2. Measure resistance between PCM connector, terminals No. 44 (Orange/White wire) and No. 60 (White/Black wire). If resistance is less than 5 ohms, repair short between Orange/White wire and White/Black wire. If resistance is 5 ohms or greater, replace PCM.

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Test 133C - Bus Short To Battery

1. Using an external ohmmeter, measure resistance between BCM Gray connector, terminal No. 6 (Tan wire) and BCM Bone connector, terminal No. 8 (Violet/Brown wire). If resistance is less than 5 ohms, repair short between Tan wire and Violet/Brown wire. If resistance is 5 ohms or greater, go to next step.
2. Measure resistance between BCM Gray connector, terminal No. 6 (Tan wire) and BCM Bone connector, terminal No. 7 (White/Black wire). If resistance is less than 5 ohms, repair short between Tan wire and White/Black wire. If resistance is 5 ohms or greater, go to next step.
3. Measure resistance between BCM Gray connector, terminal No. 3 (Tan/Red wire) and BCM Bone connector, terminal No. 8 (Violet/Brown wire). If resistance is less than 5 ohms, repair short between Tan/Red wire and Violet/Brown wire. If resistance is 5 ohms or greater, go to next step.
4. Measure resistance between BCM Gray connector, terminal No. 3 (Tan/Red wire) and BCM Bone connector, terminal No. 7 (White/Black wire). If resistance is less than 5 ohms, repair short between Tan/Red wire and White/Black wire. If resistance is 5 ohms or greater, go to next step.
5. Measure resistance between BCM Bone connector, terminals No. 5 (Yellow/Red wire) and No. 8 (Violet/Brown wire). If resistance is less than 5 ohms, repair short between Yellow/Red wire and Violet/Brown wire. If resistance is 5 ohms or greater, go to next step.
6. Measure resistance between BCM Bone connector, terminals No. 5 (Yellow/Red wire) and No. 7 (White/Black wire). If resistance is less than 5 ohms, repair short between Yellow/Red wire and White/Black wire. If resistance is 5 ohms or greater, go to next step.
7. Using scan tool in ohmmeter mode, measure resistance on BCM Bone connector, terminal No. 14 (Black/Light Green wire). If resistance is 5 ohms or greater, repair open Black/Light Green wire. If resistance is less than 5 ohms, go to next step.
8. Using scan tool in ohmmeter mode, measure resistance on BCM Bone connector, terminal No. 15 (Gray/Tan wire). If resistance is 5 ohms or greater, repair open Gray/Tan wire. If resistance is less than 5 ohms, replace BCM.

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Test 133D - Bus Short To Battery

Ensure all doors are closed and courtesy lights are off. Using scan tool in ohmmeter mode, measure resistance on Overhead Travel Information System (OTIS) module connector, terminal No. 3 (Black/Light Green wire). If resistance is 5 ohms or greater, repair open Black/Light Green wire. If resistance is less than 5 ohms, replace OTIS module.

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Test 133E - Bus Short To Battery

Ensure all doors are closed and courtesy lights are off. Using scan tool in ohmmeter mode, measure resistance on anti-lock brake controller connector, terminals No. 11, 12 and 24 (Black wires). If resistance is 5 ohms or greater, repair applicable open Black wire. If resistance is less than 5 ohms, replace anti-lock brake controller.

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Test 133F - Bus Short To Battery

Ensure all doors are closed and courtesy lights are off. Using scan tool in ohmmeter mode, measure resistance on auto temp control head connector, terminal No. 6 (Black/Light Green wire). If resistance is 30 ohms or greater, repair open Black/Light Green wire. If resistance is less than 30 ohms, replace auto temp control head module.

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Test 133G - Bus Short To Battery

Ensure all doors are closed and courtesy lights are off. Using scan tool in ohmmeter mode, measure resistance on instrument cluster, terminal No. 1 (Black/Light Green wire). If resistance is 5 ohms or greater, repair open Black/Light Green wire. If resistance is less than 5 ohms, replace instrument cluster.

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Test 134A - Bus Short To 5 Volts

1. Turn ignition off. Disconnect Transmission Control Module (TCM), if equipped. TCM is located at left front corner of engine compartment. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, replace TCM. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
2. Turn ignition off and disconnect Powertrain Control Module (PCM). PCM is located under air cleaner. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, go to TEST 134B. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
3. Turn ignition off and disconnect anti-lock brake controller, if equipped. Controller is located on left fenderwell of engine compartment, behind anti-lock brake pump motor. If scan tool does not display BUS SHORT TO 5 VOLTS, replace anti-lock brake controller. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
4. Disconnect Overhead Traveler Information System (OTIS) module connector, if equipped. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, replace OTIS module. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
5. Turn ignition off and disconnect auto temp control head connector, if equipped. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, replace auto temp control head. If scan tool displays BUS SHORT TO 5 VOLTS, go to next step.
6. Turn ignition off and 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 and disconnect Body Control Module (BCM) connectors. BCM is located behind right kick panel. Turn ignition on. If scan tool does not display BUS SHORT TO 5 VOLTS, go to TEST 134C. 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. Disconnect scan tool from Data Link Connector (DLC). Using an external voltmeter, measure voltage on BCM Bone connector, terminal No. 8 (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 BCM Bone connector, terminal No. 7 (White/Black wire). If voltage is more than 4 volts, repair White/Black wire for short to voltage. If voltage is 4 volts or less, replace scan tool cable or scan tool as necessary.

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Test 134B - Bus Short To 5 Volts

1. Using an external ohmmeter, measure resistance between Powertrain Control Module (PCM) connector, terminals No. 59 (Violet/Brown wire) and No. 61 (Violet/White wire). If resistance is less than 5 ohms, repair short between Violet/Brown wire and Violet/White wire. If resistance is 5 ohms or greater, go to next step.
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 greater, replace PCM.

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Test 134C - Bus Short To 5 Volts

1. Using an external ohmmeter, measure resistance between BCM Gray connector, terminal No. 13 (Light Green/Black wire) and BCM Bone connector, terminal No. 8 (Violet/Brown wire). If resistance is less than 5 ohms, repair short between Light Green/Black wire and Violet/Brown wire. If resistance is 5 ohms or greater, go to next step.
2. Measure resistance between BCM Gray connector, terminal No. 13 (Light Green/Black wire) and BCM Bone connector, terminal No. 7 (White/Black wire). If resistance is less than 5 ohms, repair short between Light Green/Black wire and White/Black wire. If resistance is 5 ohms or greater, go to next step.
3. Measure resistance between BCM Gray connector, terminal No. 5 (Light Green/Red wire) and BCM Bone connector, terminal No. 8 (Violet/Brown wire). If resistance is less than 5 ohms, repair short between Light Green/Red wire and Violet/Brown wire. If resistance is 5 ohms or greater, go to next step.
4. Measure resistance between BCM Gray connector, terminal No. 5 (Light Green/Red wire) and BCM Bone connector, terminal No. 7 (White/Black wire). If resistance is less than 5 ohms, repair short between Light Green/Red wire and White/Black wire. If resistance is 5 ohms or greater, go to next step.
5. Measure resistance between BCM Bone connector, terminals No. 20 (Light Blue wire) and No. 8 (Violet/Brown wire). If resistance is less than 5 ohms, repair short between Light Blue wire and Violet/Brown wire. If resistance is 5 ohms or greater, go to next step.
6. Measure resistance between BCM Bone connector, terminals No. 20 (Light Blue wire) and No. 7 (White/Black wire). If resistance is less than 5 ohms, repair short between Yellow/Red wire and White/Black wire. If resistance is 5 ohms or greater, replace BCM.

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Test 135A - Bus Short To Ground

1. Back probe jumper wire between Data Link Connector (DLC) ground terminals No. 4 (Black wire) and No. 5 (Black/Light Green wire). If scan tool does not display BUS SHORT TO GROUND, repair open ground wire. See «WIRING DIAGRAMS»(ref-138303-S04048204072002040400000) . 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 at left front corner of engine compartment. 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 under air cleaner. Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace PCM. If scan tool displays BUS SHORT TO GROUND, go to next step.
4. Turn ignition off and disconnect anti-lock brake controller, if equipped. Controller is located on left fenderwell of engine compartment, behind anti-lock brake pump motor. 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.
5. Disconnect Overhead Traveler Information System (OTIS) module connector, if equipped. Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace OTIS module. If scan tool displays BUS SHORT TO GROUND, go to next step.
6. Turn ignition off and disconnect auto temp control head connector, if equipped. Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace auto temp control head. If scan tool displays BUS SHORT TO GROUND, go to next step.
7. Turn ignition off and disconnect instrument cluster. Turn ignition on. If scan tool does not display BUS SHORT TO GROUND, replace instrument cluster. If scan tool displays BUS SHORT TO GROUND, go to next step.
8. Disconnect Body Control Module (BCM) connectors. BCM is located behind right kick 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. Disconnect scan tool from DLC. Using an external ohmmeter, measure resistance on BCM Bone connector, terminal No. 8 (Violet/Brown wire). If resistance is less than 5 ohms, repair Violet/Brown wire for short to ground. If resistance is 5 ohms or greater, go to next step.
11. Measure resistance on BCM Bone connector, terminal No. 7 (White/Black wire). If resistance is less than 5 ohms, repair White/Black wire for short to ground. If resistance is 5 ohms or greater, replace scan tool cable or scan tool as necessary.

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Test 136A - Bus (+) & Bus (-) Shorted Together

1. Turn ignition off. Disconnect Transmission Control Module (TCM) connector. TCM is located at left front corner of engine compartment. 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 under air cleaner assembly. 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 anti-lock brake controller, if equipped. Controller is located on left fenderwell of engine compartment, behind anti-lock brake pump motor. 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.
4. Turn ignition off and disconnect Overhead Travel Information System (OTIS) module, if equipped. Turn ignition on. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace OTIS module. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step.
5. Turn ignition off and disconnect ATC head (A/C-heater control panel), if equipped. Turn ignition on. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace ATC head. If scan tool displays BUS (+) & BUS (-) SHORTED TOGETHER, go to next step.
6. Disconnect instrument cluster. Turn ignition on. If scan tool does not display BUS (+) & BUS (-) SHORTED TOGETHER, replace instrument cluster. If scan tool displays (+) & BUS (-) SHORTED TOGETHER, go to next step.
7. Disconnect Body Control Module (BCM) connectors. BCM is located behind right kick 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) 13-pin 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. Disconnect scan tool from Data Link Connector (DLC). Using an external ohmmeter, measure resistance between DLC terminals No. 3 (Violet/Brown wire) and No. 11 (White/Black wire). If resistance is less than 5 ohms, repair short between White/Black wire and Violet/Brown wire. If resistance is 5 ohms or greater, replace scan tool cable or scan tool as necessary.

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Test 137A - No Termination

1. Turn ignition off, and disconnect scan tool. Disconnect Body Control Module (BCM) connectors. BCM is located behind right kick panel.
2. Using an external ohmmeter, measure resistance between BCM component connector, terminals No. 7 and 8. If resistance is not 100-140 ohms, replace BCM. If resistance is 100-140 ohms, go to next step.
3. Turn ignition on. Connect jumper wire between BCM Bone connector, terminal No. 8 (Violet/Brown wire) and ground. Using scan tool, select BODY, BODY COMPUTER, then SYSTEM TEST. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open Violet/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
4. Move jumper wire to BCM Bone connector, terminal No. 7 (White/Black wire). 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). PCM is located under air cleaner assembly. Using an external ohmmeter, measure resistance between PCM component connector, 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 PCM connector, terminal No. 59 (Violet/Brown wire) and ground. Using scan tool, 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). 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 or scan tool cable.

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

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

Test 138A - Bus Bias Level Or Bus (+/-) Open

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 DLC terminal No. 3 (Violet/Brown wire). If voltage is not 2.3-2.6 volts, go to step 3).
2. If voltage is 2.3-2.6 volts, 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. Disconnect Body Control Module (BCM) connectors. BCM is located behind right kick panel. Using an external ohmmeter, measure resistance between BCM component connector, terminals No. 7 and 8. If resistance is not 100-140 ohms, replace BCM. If resistance is 100-140 ohms, go to next step.
4. Turn ignition on. Connect jumper wire between BCM Bone connector, terminal No. 8 (Violet/Brown wire) and ground. Using scan tool, select BODY, BODY COMPUTER, then SYSTEM TEST. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open Violet/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
5. Move jumper wire to BCM Bone connector, terminal No. 7 (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, remove jumper wire and go to next step.
6. Disconnect Powertrain Control Module (PCM). PCM is located under air cleaner assembly. Using an external ohmmeter, measure resistance between PCM component connector, 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 PCM connector, terminal No. 59 (Violet/Brown wire) and ground. Using scan tool, 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. 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 OPERATIONAL, replace BCM. If scan tool displays BUS OPERATIONAL, replace ABCM.

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

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

Test 139A - No Bus Bias

1. If ignition was off during BUS test, turn ignition on, engine off. If ignition was on during BUS test, turn ignition off. Disconnect scan tool. Turn ignition on. Using an external voltmeter, check voltage between chassis ground and Data Link Connector (DLC) connector terminal No. 3 (Violet/Brown wire). If voltage is not 2.3-2.6 volts, go to step 3).
2. If voltage is 2.3-2.6 volts, check voltage between chassis ground and DLC connector 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 cartridge as necessary.
3. Turn ignition off. Disconnect Body Control Module (BCM). BCM is located behind right kick panel. Using an external ohmmeter, check resistance between BCM Bone connector terminals No. 7 and No. 8. If resistance is not 100-140 ohms, replace BCM. If resistance is 100-140 ohms, go to next step.
4. Turn ignition on. Connect jumper wire between BCM Bone connector, terminal No. 8 (Violet/Brown wire) and ground. Using scan tool, select BODY, BODY COMPUTER, then SYSTEM TEST. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open Violet/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
5. Move jumper wire to BCM Bone connector, terminal No. 7 (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, remove jumper wire and go to next step.
6. Using external voltmeter, measure voltage on BCM Bone connector, terminal No. 19 (Pink wire). If voltage is 10 volts or less, repair Pink wire as necessary. If voltage is more than 10 volts, go to next step.
7. Turn ignition on. Measure voltage on BCM Bone connector, terminal No. 13 (Dark Blue/White wire). If voltage is 10 volts or less, repair open Dark Blue/White wire. If voltage is more than 10 volts, go to next step.
8. Turn ignition off. Using external ohmmeter, measure resistance of BCM Bone connector, terminal No. 14 (Black/Light Green wire). If resistance is 5 ohms or more, repair open to ground in Black/Light Green wire. If resistance is less than 5 ohms, replace BCM.

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring schematics, see WIRING DIAGRAMS in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE after each repair.

Test 140A - Not Receiving Bus Messages Correctly

1. Turn ignition off. Disconnect Transmission Control Module (TCM). TCM is located at left front corner of engine compartment. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGES CORRECTLY, replace TCM. If scan tool displays NOT RECEIVING BUS MESSAGES CORRECTLY, go to next step.
2. Turn ignition off and disconnect Powertrain Control Module (PCM). PCM is located under air cleaner assembly. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGES CORRECTLY, replace PCM. If scan tool displays NOT RECEIVING BUS MESSAGES CORRECTLY, go to next step.
3. Turn ignition off and disconnect anti-lock brake controller, if equipped. Controller is located on left fenderwell of engine compartment, behind anti-lock brake pump motor. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGES CORRECTLY, replace controller. If scan tool displays NOT RECEIVING BUS MESSAGES CORRECTLY, go to next step.
4. Disconnect Overhead Travel Information System (OTIS) module, if equipped. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGES CORRECTLY, replace OTIS module. If scan tool displays NOT RECEIVING BUS MESSAGES CORRECTLY, go to next step.
5. Turn ignition off and disconnect auto temp control head connector, if equipped. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGES CORRECTLY, replace auto temp control head. If scan tool displays NOT RECEIVING BUS MESSAGES CORRECTLY, go to next step.
6. Turn ignition off and disconnect instrument cluster. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGES CORRECTLY, replace instrument cluster. If scan tool displays NOT RECEIVING BUS MESSAGES CORRECTLY, go to next step.
7. Disconnect Body Control Module (BCM) connectors. BCM is located behind right kick panel. Turn ignition on. If scan tool does not display NOT RECEIVING BUS MESSAGES CORRECTLY, go to next step. If scan tool displays NOT RECEIVING BUS MESSAGES CORRECTLY, 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 NOT RECEIVING BUS MESSAGES CORRECTLY, replace ABCM. If scan tool displays NOT RECEIVING BUS MESSAGES CORRECTLY, replace scan tool cable or scan tool.