Body Control Modules: Other — Dodge Intrepid II (1997-2004)

MECHANICAL INSTRUMENT CLUSTER (MIC)

Instrument cluster includes a speedometer, tachometer, fuel gauge, oil pressure gauge, water temperature gauge, voltmeter, Vacuum Fluorescent (VF) display and a series of warning lights.

Body Control Module (BCM) sends signals necessary for the cluster to position gauges. Cluster receives these messages through the PCI bus and translates them into gauge positions. BCM sends status of all indicator lights and dimming level to instrument cluster over PCI bus when ignition switch is in RUN or START positions. Malfunction indicator light (CHECK ENGINE) status is sent to BCM from PCM over PCI bus. Vacuum fluorescent odometer/trip display works when ignition switch is in RUN or START positions. BCM stores mileage information that odometer displays. If PCI bus is not functioning, odometer will display NO BUS instead of the mileage numbers. BCM sends mileage message and dimming level message to vacuum fluorescent display when ignition switch is in the ACC position. All other instrument cluster features only work when the ignition switch is in the RUN position.

MEMORY HEATED SEAT & MIRROR SYSTEM

The Memory Heated Seat/Mirror Module (MHSMM) mounted under driver's seat, reads all seat switch, mirror switch and radio station preset inputs programmed by driver. Functionality includes memory preset capability for a second driver. Two stored sets of preferences can be recalled upon request.

The MHSMM monitors memory switches and stores desired positions in memory. MHSMM will activate seat and mirror motors in response to a recall request from individual memory switch or Remote Keyless Entry (RKE) fob.

OVERHEAD TRAVEL INFORMATION SYSTEM (OTIS)

The OTIS provides vehicle operator with supplementary information on a Vacuum Fluorescent (VF) display. The OTIS is located in overhead console. Vehicle operator selects and resets display functions through the use of 4 buttons (US/M, STEP, C/T and RESET). The OTIS obtains most of its information over the PCI bus.

The OTIS powers up when it senses vehicle (battery) voltage on the ignition input circuit. The OTIS blanks the display, then illuminates all segments of the VF display. During this time, the OTIS sends and receives information over the PCI bus to determine what to display after its 2-second initialization period. OTIS will display dashes (- - -) for any of the screens for which it did not receive bus messages during the 2-second initialization period. Dashes will be replaced by valid information if and when it is received.

PCI BUS SYSTEM

The Programmable Communication Interface (PCI bus) multiplex system consists of a single wire. The BCM acts as a splice to connect each module and DLC. Each module uses its local ground as bus reference. If more than one module is trying to access the PCI bus at one time, the code being sent determines which message has higher priority, and is then allowed to access bus first. Communication over the bus is essential to proper operation of vehicles on-board diagnostic systems and Diagnostic Readout Box (DRBIII(R)). Problems with operation of bus or DRBIII(R) must be corrected before proceeding with diagnostic testing.

VEHICLE THEFT SECURITY SYSTEM (VTSS)

VTSS monitors vehicle doors, hood, trunk key cylinder and ignition for unauthorized operation/entry. When alarm is triggered, the horn will sound for 3 minutes and the parking lights will flash for 15-18 minutes.

When an unauthorized entry into vehicle occurs, the VTSS module signals Powertrain Control Module (PCM) through the PCI bus that it is not okay to start the engine. The PCM then "zeros out" the pulse width of the fuel injectors, thus preventing the engine from starting (start/stall condition). The engine will NOT start until VTSS is disarmed.

PROGRAMMING

Note. Programming procedures are written specifically for Chrysler's Diagnostic Readout Box (DRBIII(R)) scan tool. A generic scan tool may not be capable of performing all necessary functions.

A/C CONTROL HEAD

If any repairs were made to heating and A/C system, disconnect negative battery cable or use scan tool to recalibrate HVAC doors.

Turn ignition on for at least 15 seconds (to learn VIN). On vehicles equipped with Vehicle Theft Security System (VTSS), use scan tool to enable VTSS. Using scan tool, program all other options as necessary.

MEMORY HEATED SEAT/MIRROR MODULE

Connect scan tool to Data Link Connector (DLC). Using scan tool, reset guard bands. Using memory set switch, reprogram both memory position. Remove key from ignition switch. Close all door. Wait 30 seconds. Verify both memory positions can be recalled.

POWERTRAIN CONTROL MODULE

Note. Sentry Key Immobilizer Module (SKIM) will only remain in secured access mode for 60 seconds. If incorrect unique Personal Identification Number (PIN) is entered 3 times, SKIM will be locked for one hour. To unlock SKIM, turn ignition on for one hour. When SKIM is locked, scan tool will display BUS +/- SIGNALS OPEN.

Obtain vehicle's unique Personal Identification Number (PIN) assigned to SKIM module from vehicle owner or manufacturer. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, enter correct VIN and mileage into PCM. Go to next step.
Using scan tool, clear DTCs from Anti-Lock Brake System (ABS) module and Occupant Restraint Controller (ORC) module. Using scan tool, select SKIM MODULE REPLACEMENT. Enter 4-digit PIN number to put SKIM in access mode. Using scan tool, transfer vehicle secret key data to from SKIM to PCM. Go to next step.
Attempt to start vehicle. If vehicle starts and stays running, system is operating correctly and customer's complaint cannot be duplicated, repair is complete. If vehicle does not start or stay running, repair by symptom. See appropriate TROUBLE SHOOTING - NO CODES article in ENGINE PERFORMANCE.

REMOTE TRANSMITTER

If one remote transmitter is already programmed, use customer learn method. See CUSTOMER LEARN METHOD . If no remote transmitters are programmed, use scan tool method. See SCAN TOOL METHOD .

Customer Learn Method

Using a programmed remote transmitter, press and hold unlock button for 4-10 seconds. While still holding unlock button, press panic button and same remote transmitter. Chime will sound to indicate programming mode has been entered. Once programming mode is enter, press any button on each remote transmitter to be programmed. Chime will sound to indicate when a remote transmitter has been programmed. To exit programming, turn ignition off.

Memory Positions

Note. Memory Heated Seat and Mirror Module (MHSMM) communicates with the Remote Keyless Entry (RKE) system though the PCI bus (Violet/Yellow wire). MHSMM settings can be programmed and recalled by the RKE system.

Set seat and mirrors to desired position. Press set button on memory set switch. Press and release desired memory switch button (1 or 2). Press and release unlock button on desired remote transmitter. Do not press any buttons for 10 seconds. Set desired radio station presets.

SENTRY KEYS

If 2 sentry keys are already programmed, use customer learn method. See CUSTOMER LEARN METHOD . If no sentry keys are programmed, use scan tool method. See SCAN TOOL METHOD .

Note. If no sentry keys have been previously programmed, scan tool method must be used to program the first 2 keys into system. See SCAN TOOL METHOD . The following steps must be completed in proper order. SKIS will automatically exit CUSTOMER LEARN programming mode if time allotted is exceeded, or if 8 keys have already been programmed.

Obtain 2 programmed sentry keys from owner. Ensure new sentry key blank is cut before proceeding. Insert one of the 2 valid sentry keys into ignition. Turn ignition on.
After 3 seconds, but no more than 15 seconds, turn ignition off. Remove key. Insert second valid sentry key. Turn ignition on.
About 10 seconds after completion of step 2) , VTSS LED indicator will flash and a single tone will be heard. This indicates system has entered customer learn programming mode.
Within 50 seconds, turn ignition off. Remove valid sentry key. Insert blank sentry key. Turn ignition on. After about 10 seconds, a single tone will be heard. VTSS LED indicator will stop flashing and stay on for about 3 seconds to indicate sentry key has been successfully programmed.
SKIS will return to normal operation immediately following exit from customer learn programming mode. Repeat procedure for each additional sentry key to be programmed.

SKIM MODULE

CAUTION

If wrong country code is programmed into SKIM when requested, SKIM must be replaced.

Obtain vehicle's unique Personal Identification Number (PIN) assigned to SKIM module from vehicle owner or manufacturer. Remove all test equipment and jumper wires. Connect any disconnected components. Go to next step.
Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, select SKIM MODULE REPLACEMENT. Enter 4-digit PIN number to put Sentry Key Immobilizer Module (SKIM) in access mode. Go to next step.
Using scan tool, select THEFT ALARM, SKIM, MISCELLANEOUS, then select desired procedure and follow steps displayed on scan tool. If SKIM has been replaced, ensure all keys and remote transmitters to be used with vehicle are programmed into SKIM. See «SENTRY KEYS»(ref-3597-S12714674722000051100000) and «REMOTE TRANSMITTER»(ref-3597-S28689115432000051100000) .

TRANSMISSION CONTROL MODULE

Connect scan tool to Data Link Connector (DLC). Start engine and let idle. Press and hold brake pedal down. Using scan tool, select TRANSMISSION, MISCELLANEOUS, then QUICK LEARN PROCEDURE. Follow steps displayed on scan tool to complete quick learn procedure.

CHIME SYSTEMS

CAUTION

Always turn ignition off before disconnecting any control module connectors. Failure to do so could result in damage to control module. When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Chime Inoperative At All Times

Turn ignition on. Close all doors. Connect scan tool to Data Link Connector (DLC). Using scan tool, activate chime. If chime does not sound, replace Body Control Module (BCM). If chime sounds, BCM is not receiving signal(s) to operate chime. Repair by symptom.

Chime Inoperative With Seat Belt Unfastened

Turn ignition off. Disconnect seat belt switch harness connector. Turn all lights off. Close all doors. Ensure all courtesy lights are off. Measure resistance between ground and Black wire terminal at seat belt switch harness connector. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between seat belt switch and ground.
Turn ignition on. Measure voltage at Light Green/Red wire terminal at seat belt switch harness connector. If voltage is greater than 5.3 volts, go to next step. If voltage is less than 5.3 volts, go to step 4.
Check Light Green/Red wire between Body Control Module (BCM) and seat belt switch for short to voltage. If problem exists, repair wiring as necessary. If problem does not exist, replace BCM.
Turn ignition off. Connect seat belt switch harness connector. Connect scan tool to Data Link Connector (DLC). Ensure seat belt is not fastened. Turn ignition on. Using scan tool, monitor seat belt switch status. If CLOSED is not displayed, go to next step. If CLOSED is displayed, replace Body Control Module (BCM).
Turn ignition off. Disconnect seat belt switch harness connector. Using a fused jumper wire, ground Light Green/Red wire terminal at seat belt switch harness connector. Turn ignition on. Using scan tool, monitor seat belt switch status. If CLOSED is not displayed, go to next step. If CLOSED is displayed, replace seat belt switch.
Turn ignition off. Disconnect BCM harness connector C4. Measure resistance in Light Green/Red wire between seat belt switch harness connector and terminal No. 15 at BCM harness connector C4. (Scheme 7) If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Light Green/Red wire between seat belt switch and BCM.

Scheme 7

Chime Sounds With Driver's Door Open (Ignition Key Removed)

Ensure all exterior lights are off. Remove key from ignition switch. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, monitor key-in ignition status. If CLOSED is displayed, go to next step. If CLOSED is not displayed, replace Body Control Module (BCM).
Turn ignition off. Disconnect ignition switch harness connector. Turn ignition on. Using scan tool, monitor key-in ignition status. If CLOSED is displayed, go to next step. If CLOSED is not displayed, replace ignition switch.
Turn ignition off. Disconnect BCM harness connector C2. Measure resistance between ground and terminal No. 24 (Light Blue wire) at BCM harness connector C2. (Scheme 7) If resistance is greater than 100 ohms, replace BCM. If resistance is 100 ohms or less, repair short to ground in Light Blue wire between ignition switch and BCM.

Chime Sounds With Seat Belt Fastened

Turn ignition off. Fasten driver's seat belt. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, monitor seat belt switch status. If CLOSED is displayed, go to next step. If CLOSED is not displayed, replace Body Control Module (BCM).
Turn ignition off. Disconnect seat belt switch harness connector. Turn ignition on. Using scan tool, monitor seat belt switch status. If CLOSED is displayed, go to next step. If CLOSED is not displayed, replace seat belt switch.
Turn ignition off. Disconnect BCM harness connector C4. Measure resistance between ground and terminal No. 15 (Light Green/Red wire) at BCM harness connector C4. (Scheme 7) If resistance is greater than 100 ohms, replace BCM. If resistance is 100 ohms or less, repair short to ground in Light Green/Red wire between seat belt switch and BCM.

COMMUNICATIONS

CAUTION

Note. For communication system wiring diagram, see DATA LINK CONNECTORS article in WIRING DIAGRAMS.

ATC Messages Not Received

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Body Control Module (BCM). If scan tool communicates with BCM, go to next step. If scan tool does not communicate with BCM, repair communication concern. See «NO RESPONSE FROM BODY CONTROL MODULE (BUS +/- SIGNAL OPEN)»(ref-3597-S01081123762000051100000).
Turn ignition off. Remove and inspect fuse No. 17 (10-amp) in junction block. If fuse is blown, go to next step. If fuse is okay, go to step 5.
Measure resistance between ground and output cavity at fuse No. 17. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace fuse No. 17.
Disconnect Automatic Temperature Control (ATC) head harness connector. Measure resistance between ground and terminal No. 10 (White wire) at ATC head harness connector. (Scheme 8) If resistance is greater than 5 ohms, replace fuse No. 17 and ATC head. If resistance is 5 ohms or less, replace fuse and repair short to ground in White wire between ATC head and fuse No. 17.
Turn ignition on. Measure voltage at input side of fuse No. 17. If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Turn ignition off. Install fuse No. 17. Disconnect Automatic Temperature Control (ATC) head harness connector. Turn ignition on. Measure voltage at terminal No. 10 (White wire) at ATC head harness connector. (Scheme 8) If battery voltage exists, go to next step. If battery voltage does not exist, repair open in White wire between ATC head and fuse No. 17.
Turn ignition off. Measure resistance between ground and terminals No. 1 (Black/Light Green wire) and No. 3 (Black wire) at ATC head harness connector. If both resistances are 5 ohms or less, go to next step. If either resistance is greater than 5 ohms, repair open in appropriate wire between ground and ATC head.
Connect Diagnostic Readout Box (DRBIII(R)) to Data Link Connector (DLC). Connect Scope Input Cable (CH7058) to channel one connector on DRBIII(R). Connect Red and Black leads and Cable Probe Adapter (CH7062) to scope input cable. Using DRBIII(R), access lab scope 12-volt square wave and set to 20-volt range. Go to next step.
Connect Black lead to ground and Red lead to terminal No. 2 (Violet/Yellow wire) at ATC head harness connector. Turn ignition on. If voltage does not pulse from zero to 7.5 volts, go to next step. If voltage pluses from zero to 7.5 volts, replace ATC head.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C1. Measure resistance in Violet/Yellow wire between terminal No. 2 at ATC head harness connector and terminal No. 4 at BCM harness connector C1. (Scheme 7)and (Scheme 8). If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Violet/Yellow wire between BCM and MHSMM.

Scheme 8

Battery Voltage To Module Disconnected

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Connect scan tool to Data Link Connector (DLC). Using scan tool, clear DTCs. Turn ignition on. Using scan tool, retrieve DTCs. If this DTC resets, go to next step. If this DTC is not reset, problem is intermittent.
Turn ignition off. Disconnect Body Control Module (BCM) from back of junction block. Turn ignition on. Measure voltage at terminal No. 7 at BCM connector on back of junction block. (Scheme 9) If battery voltage does not exist, go to next step. If battery voltage exists, replace BCM.
Check operation of courtesy lights. If courtesy light operate, replace junction box. If courtesy lights do not operate, go to next step.
Check fuse No. 19 (10-amp) in junction box. If fuse is okay, go to next step. If fuse is blown, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Check voltage to fuse No. 19 (10-amp) in junction box. If battery voltage exists, replace junction box. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.

Scheme 9

EATX Bus Communication Failure

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Transmission Control Module (TCM). If scan tool communicates with TCM, go to next step. If scan tool does not communicate with TCM, repair communication concern. See «NO RESPONSE FROM TRANSMISSION CONTROL MODULE (TCM)»(ref-3597-S33869684662000051100000) .
Using scan tool, clear DTCs. Turn ignition on for approximately one minute. Using scan tool, retrieve DTCs. If this DTC resets, replace BCM. If this DTC does not reset, problem is intermittent.

EEPROM Constant Checksum Failure

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, clear DTCs. Turn ignition off, then on. Using scan tool, retrieve DTCs. If this DTC resets, replace BCM. If this DTC is not reset, problem is intermittent.

Internal Base/Premium Select Failure

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

MHSMM Messages Not Received

Note. After making any repairs, perform MEMORY SYSTEM VERIFICATION TEST under VERIFICATION TESTS.

Connect scan tool to Data Link Connector (DLC). Using scan tool, attempt to communicate with Body Control Module (BCM). If scan tool communicates with BCM, go to next step. If scan tool does not communicate with BCM, repair communication concern. See «NO RESPONSE FROM BODY CONTROL MODULE (BUS +/- SIGNAL OPEN)»(ref-3597-S01081123762000051100000).
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C4 (2-pin connector). Turn ignition on. Measure voltage at terminal No. 2 (Red wire) at MHSMM harness connector C4. (Scheme 10) If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Turn ignition off. Ensure all accessories and courtesy lights are off. Measure resistance between ground and terminal No. 1 (Black wire) at MHSMM harness connector C4. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between MHSMM and ground.
Disconnect MHSMM harness connector C1. Connect Diagnostic Readout Box (DRBIII(R)) to Data Link Connector (DLC). Connect Scope Input Cable (CH7058) to channel one connector on DRBIII(R). Connect Red and Black leads and Cable Probe Adapter (CH7062) to scope input cable. Using DRBIII(R), access lab scope 12-volt square wave and set to 20-volt range. Go to next step.
Connect Black lead to ground and Red lead to terminal No. 26 (Violet/Yellow wire) at MHSMM harness connector C1. (Scheme 10) Turn ignition on. If voltage does not pulse from zero to 7.5 volts, go to next step. If voltage pluses from zero to 7.5 volts, replace MHSMM.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C4. Measure resistance in Violet/Yellow wire between terminal No. 26 at MHSMM harness connector C1 and terminal No. 9 at BCM harness connector C4. (Scheme 7)and (Scheme 10). If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Violet/Yellow wire between BCM and MHSMM.

Scheme 10

MIC Message Not Received

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Connect scan tool to Data Link Connector (DLC). Using scan tool, attempt to communicate with Body Control Module (BCM). If scan tool communicates with BCM, go to next step. If scan tool does not communicate with BCM, repair communication concern. See «NO RESPONSE FROM BODY CONTROL MODULE (BUS +/- SIGNAL OPEN)»(ref-3597-S01081123762000051100000).
Turn ignition off. Disconnect instrument cluster harness connectors. Turn ignition on. Measure voltage at terminal No. 1 (Pink/Red wire) at instrument cluster harness connector C1. (Scheme 11) If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Turn ignition off. Measure resistance between ground and terminal No. 6 (Black/Light Green wire) at instrument cluster harness connector C1. (Scheme 11) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black/Light Green wire between ground and instrument cluster.
Measure resistance between ground and terminal No. 6 (Black wire) at instrument cluster harness connector C2. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between ground and instrument cluster.
Connect Diagnostic Readout Box (DRBIII(R)) to Data Link Connector (DLC). Connect Scope Input Cable (CH7058) to channel one connector on DRBIII(R). Connect Red and Black leads and Cable Probe Adapter (CH7062) to scope input cable. Using DRBIII(R), access lab scope 12-volt square wave and set to 20-volt range. Go to next step.
Connect Black lead to ground and Red lead to terminal No. 5 (Violet/Yellow wire) at instrument cluster harness connector C1. Turn ignition on. If voltage does not pulse from zero to 7.5 volts, go to next step. If voltage pluses from zero to 7.5 volts, replace instrument cluster.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C1. Measure resistance in Violet/Yellow wire between terminal No. 5 at instrument cluster harness connector C1 and terminal No. 13 at BCM harness connector C1. (Scheme 7)and (Scheme 11). If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Violet/Yellow wire between BCM and instrument cluster.

Scheme 11

No PCI Messages From CD Changer

Information is not available from manufacturer.

OTIS Messages Not Received

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Overhead Travel Information System (OTIS) module. If scan tool communicates with OTIS module, go to next step. If scan tool does not communicate with OTIS module, repair communication concern. See «BUS +/- SIGNALS OPEN FROM OR BLANK SCREEN ON OTIS»(ref-3597-S11732416542000051100000) .
Using scan tool, clear DTCs. Turn ignition off. Turn ignition on for approximately one minute. Using scan tool, retrieve DTCs. If this DTC resets, replace Body Control Module (BCM). If this DTC is not reset, problem is intermittent.

Post Failure

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Connect scan tool to Data Link Connector (DLC). Using scan tool, clear DTCs. Turn ignition on. Using scan tool, retrieve DTCs. If this DTC resets, replace BCM. If this DTC is not reset, problem is intermittent.

SBEC Bus Communication Failure

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Attempt to start vehicle. If vehicle starts and continues to run, go to next step. If vehicle does not start and continue to run, repair no start condition as necessary. See appropriate BASIC DIAGNOSTIC PROCEDURES article in ENGINE PERFORMANCE.
Turn ignition off. Connect scan tool to Data Link Connector (DLC). Using scan tool, clear DTCs. Start vehicle and let idle for at least one minute. Using scan tool, retrieve DTCs. If this DTC resets, replace BCM. If this DTC is not reset, problem is intermittent.

SKIM Messages Not Received

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Attempt to start vehicle. If vehicle starts and continues to run, go to next step. If vehicle does not start and continue to run, repair no start condition as necessary. See appropriate BASIC DIAGNOSTIC PROCEDURES article in ENGINE PERFORMANCE.
Turn ignition off. Connect scan tool to Data Link Connector (DLC). Using scan tool, clear DTCs. Start vehicle and let idle for at least one minute. Using scan tool, retrieve DTCs. If this DTC resets, replace BCM. If this DTC is not reset, problem is intermittent.

Bus +/- Signal Open From SKIM

Note. After making any repairs, perform SKIS VERIFICATION TEST under VERIFICATION TESTS.

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Sentry Key Immobilizer Module (SKIM). If scan tool does not communicate with SKIM, go to next step. If scan tool communicates with SKIM, problem is intermittent.
Turn ignition off. Disconnect SKIM harness connector. Measure voltage at terminal No. 6 (Pink wire) at SKIM harness connector. (Scheme 12) If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Turn ignition on. Measure voltage at terminal No. 4 (Dark Blue/White wire) at SKIM harness connector. If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Turn ignition off. Measure resistance between ground and terminal No. 2 (Black/Light Green wire) at SKIM harness connector. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black/Light Green wire between ground and SKIM.
Connect Diagnostic Readout Box (DRBIII(R)) to Data Link Connector (DLC). Connect Scope Input Cable (CH7058) to channel one connector on DRBIII(R). Connect Red and Black leads and Cable Probe Adapter (CH7062) to scope input cable. Using DRBIII(R), access lab scope 12-volt square wave and set to 20-volt range. Go to next step.
Connect Black lead to ground and Red lead to terminal No. 2 (Violet/Yellow wire) at SKIM harness connector. Turn ignition on. If voltage does not pulse from zero to 7.5 volts, go to next step. If voltage pluses from zero to 7.5 volts, replace SKIM.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C1. Measure resistance in Violet/Yellow wire between terminal No. 2 at SKIM harness connector and terminal No. 12 at BCM harness connector C1. (Scheme 7)and (Scheme 12). If resistance is greater than 5 ohms, repair open in Violet/Yellow wire between SKIM and BCM. If resistance is 5 ohms or less, replace BCM.

Scheme 12

Bus +/- Signals Open From Or Blank Screen On OTIS

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Body Control Module (BCM). If scan tool communicates with BCM, go to next step. If scan tool does not communicate with BCM, repair communication concern. See «NO RESPONSE FROM BODY CONTROL MODULE (BUS +/- SIGNAL OPEN)»(ref-3597-S01081123762000051100000).
Turn ignition off. Disconnect Overhead Travel Information System (OTIS) module harness connector. Turn ignition on. Measure voltage at terminal No. 2 (Dark Blue/White wire) at OTIS module harness connector. (Scheme 13) If battery voltage exists, go to next step. If battery voltage does not exist, repair open in Pink wire between junction block and OTIS module.
Turn ignition off. Measure resistance between ground and terminal No. 3 (Black/Light Green wire) at OTIS module harness connector. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black/Light Green wire between ground and OTIS module.
Connect Diagnostic Readout Box (DRBIII(R)) to Data Link Connector (DLC). Connect Scope Input Cable (CH7058) to channel one connector on DRBIII(R). Connect Red and Black leads and Cable Probe Adapter (CH7062) to scope input cable. Using DRBIII(R), access lab scope 12-volt square wave and set to 20-volt range. Go to next step.
Connect Black lead to ground and Red lead to terminal No. 5 (Violet/Yellow wire) at OTIS module harness connector. Turn ignition on. If voltage does not pulse from zero to 7.5 volts, go to next step. If voltage pluses from zero to 7.5 volts, replace OTIS module.
Turn ignition off. Disconnect Body Control Module (BCM) from back of junction block. Measure resistance in Violet/Yellow wire between terminal No. 5 at OTIS module harness connector and terminal No. 10 at BCM connector on back of junction block. (Scheme 9)and (Scheme 13). If resistance is greater than 5 ohms, repair open in Violet/Yellow wire between OTIS module and BCM. If resistance is 5 ohms or less, replace BCM.

Scheme 13

Fused Ignition Switch Output To BCM

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Turn ignition off. Remove and inspect fuse No. 14 (10-amp) in junction block. If fuse is blown, go to next step. If fuse is okay, go to step 6.
Measure resistance between ground and output side of fuse No. 14 at junction block. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace fuse No. 14.
Disconnect junction block harness connector C11. (Scheme 14) Measure resistance between ground and output side of fuse No. 14 at junction block. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Disconnect junction block harness connectors C4 and C7. (Scheme 9) Measure resistance between ground and output side of fuse No. 14 at junction block. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Disconnect Body Control Module (BCM) from back of junction block. Measure resistance between ground and output side of fuse No. 14 at junction block. If resistance is 5 ohms or less, replace junction block. If resistance is greater than 5 ohms, replace BCM.
Turn ignition on. Measure voltage at input side of fuse No. 14 at junction block. If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Turn ignition off. Install fuse No. 14. Disconnect Body Control Module (BCM) from back of junction block. Ensure all junction block connectors are connected. Turn ignition on. Measure voltage at terminal No. 5 at BCM connector on back junction block. (Scheme 9) If battery voltage does not exist, replace junction block. If battery voltage exists, replace BCM.

Scheme 14

No Response From Body Control Module (Bus +/- Signal Open)

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Turn ignition off. Disconnect junction block harness connector C2. (Scheme 9) Measure resistance between ground and terminal No. 8 (Black/Orange wire) at junction block harness connector C2. (Scheme 15) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black/Orange wire between ground and junction block.
Disconnect junction block harness connector C3. (Scheme 9) Measure resistance between ground and terminal No. 4 (Black/Light Green wire) at junction block harness connector C3. (Scheme 16) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black/Light Green wire between ground and junction block.
Disconnect Body Control Module (BCM) from back for junction block. Turn ignition on. Measure voltage at terminal No. 7 at BCM connector on back of junction block. If battery voltage exists, go to next step. If battery voltage does not exist, replace junction block.
Turn ignition off. Connect junction block harness connector C2. Measure resistance between ground and terminal No. 1 at BCM connector on back of junction block. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace junction block.
Connect junction block harness connector C3. Measure resistance between ground and terminal No. 20 at BCM connector on back of junction block. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace junction block.
Disconnect BCM harness connector C1. Measure resistance between ground and terminal No. 2 (Violet/Yellow wire) at Data Link Connector (DLC). see scheme 12 If resistance is greater than 1000 ohms, go to next step. If resistance is 1000 ohms or less, repair short to ground in Violet/Yellow wire between BCM and DLC.
Turn ignition on. Measure voltage at terminal No. 2 (Violet/Yellow wire) at DLC. If voltage does not exist, go to next step. If voltage exists, repair short to voltage in Violet/Yellow wire between BCM and DLC.
Measure resistance in Violet/Yellow wire between terminal No. 2 at DLC and terminal No. 14 at BCM harness connector C1. (Scheme 7)and see scheme 12. If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Violet/Yellow wire between BCM and DLC.

Scheme 15

Scheme 16

No Response From CAB

Note. After making any repairs, perform ANTI-LOCK BRAKE SYSTEM VERIFICATION TEST under VERIFICATION TESTS.

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Body Control Module (BCM). If scan tool communicates with BCM, go to next step. If scan tool does not communicate with BCM, repair communication concern. See «NO RESPONSE FROM BODY CONTROL MODULE (BUS +/- SIGNAL OPEN)»(ref-3597-S01081123762000051100000).
Turn ignition off. Remove and inspect fuse No. 17 (10-amp) in junction block. If fuse is blown, go to next step. If fuse is okay, go to step 5.
Ensure fuse No. 17 is still removed. Disconnect Controller Anti-Lock Brake (CAB) harness connector. Measure resistance between ground and output side of fuse No. 17 at junction block. If resistance is greater than 1000 ohms, go to next step. If resistance is 1000 ohms or less, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Connect CAB harness connector. Measure resistance between ground and output side of fuse No. 17 at junction block. If resistance is greater than 1000 ohms, replace fuse No. 17. If resistance is 1000 ohms or less, replace CAB.
Disconnect Controller Anti-Lock Brake (CAB) harness connector. Disconnect BCM harness connector C3. Measure resistance in Yellow/Violet wire between terminal No. 20 at CAB harness connector and terminal No. 2 at BCM harness connector C3. (Scheme 7)and (Scheme 17). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Yellow/Violet wire between CAB and BCM.
Measure resistance between ground and terminal No. 8 (Black wire) at CAB harness connector. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between CAB and ground.
Measure resistance between ground and terminal No. 24 (Black wire) at CAB harness connector. If resistance is 5 ohms or less, replace CAB. If resistance is greater than 5 ohms, repair open in Black wire between CAB and ground.

Scheme 17

No Response From ORC

Note. After making any repairs, perform AIR BAG VERIFICATION TEST under VERIFICATION TESTS.

Turn ignition off. Disconnect negative battery cable. Wait at least 2 minutes. Disconnect Occupant Restraint Controller (ORC) harness connector. Measure resistance between ground and terminal No. 16 (Black/Light Green wire) at ORC harness connector. (Scheme 18) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black/Light Green wire between ground and ORC.
Measure resistance between ground and pin No. 16 at ORC connector (component side). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace ORC.
Connect negative battery cable. Turn ignition on. Measure voltage at terminal No. 14 (Light Green/Yellow wire) at ORC harness connector. If battery voltage exists, go to next step. If battery voltage does not exists, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Measure voltage at terminal No. 15 (Dark Blue/Yellow wire) at ORC harness connector. If battery voltage exists, go to next step. If battery voltage does not exists, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C1. Measure resistance in Violet/Yellow wire between terminal No. 21 at ORC harness connector and terminal No. 7 at BCM harness connector C1. (Scheme 7)and (Scheme 18). If resistance is 5 ohms or less, replace ORC. If resistance is greater than 5 ohms, repair open in Violet/Yellow wire between ORC and BCM.

Scheme 18

No Response From Powertrain Control Module (PCI Bus)

Note. After making any repairs, perform POWERTRAIN VERIFICATION TEST under VERIFICATION TESTS.

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Body Control Module (BCM). If scan tool communicates with BCM, go to next step. If scan tool does not communicate with BCM, repair communication concern. See «NO RESPONSE FROM BODY CONTROL MODULE (BUS +/- SIGNAL OPEN)»(ref-3597-S01081123762000051100000).
Turn ignition off. Disconnect Powertrain Control Module (PCM) harness connectors. Turn ignition on. Connect at test light between ground and terminal No. 20 (Dark Blue/White wire) at PCM harness connector C1. (Scheme 19) If test light illuminates, go to next step. If test light does not illuminate, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Turn ignition off. Connect at test light between ground and terminal No. 46 (Red/White wire) at PCM harness connector C2. If test light illuminates, go to next step. If test light does not illuminate, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Connect at test light between positive battery terminal and terminal No. 10 (Black/Tan wire) at PCM harness connector C1. If test light illuminates, go to next step. If test light does not illuminate, repair open in Black/Tan wire between ground and PCM.
Connect at test light between positive battery terminal and terminal No. 50 (Black/Tan wire) at PCM harness connector C2. If test light illuminates, go to next step. If test light does not illuminate, repair open in Black/Tan wire between ground and PCM.
Connect at test light between positive battery terminal and terminal No. 47 (Black/White wire) at PCM harness connector C2. If test light illuminates, go to next step. If test light does not illuminate, repair open in Black/White wire between ground and PCM.
Connect Diagnostic Readout Box (DRBIII(R)) to Data Link Connector (DLC). Connect Scope Input Cable (CH7058) to channel one connector on DRBIII(R). Connect Red and Black leads and Cable Probe Adapter (CH7062) to scope input cable. Using DRBIII(R), access lab scope 12-volt square wave and set to 20-volt range. Go to next step.
Connect Black lead to ground and Red lead to terminal No. 59 (Violet/Yellow wire) at PCM harness connector C2. Turn ignition on. If voltage does not pulse from zero to 7.5 volts, go to next step. If voltage pluses from zero to 7.5 volts, replace PCM.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C4. Measure resistance in Violet/Yellow wire between terminal No. 59 at PCM harness connector C2 and terminal No. 1 at BCM harness connector C3. (Scheme 7)and (Scheme 19). If resistance is greater than 5 ohms, repair open in Violet/Yellow wire between PCM and BCM. If resistance is 5 ohms or less, replace BCM.

Scheme 19

No Response From Radio

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Body Control Module (BCM). If scan tool communicates with BCM, go to next step. If scan tool does not communicate with BCM, repair communication concern. See «NO RESPONSE FROM BODY CONTROL MODULE (BUS +/- SIGNAL OPEN)»(ref-3597-S01081123762000051100000).
Turn ignition off. Remove and inspect fuse No. 4 (10-amp) in junction block. If fuse is okay, go to next step. If fuse is blown, go to step 9.
Install fuse No. 4. Disconnect radio harness connector C2. Turn ignition on. Measure voltage at terminal No. 6 (Red wire) radio harness connector C2. (Scheme 20) If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Turn ignition off. Measure voltage at terminal No. 7 (Pink wire) at radio harness connector C2. If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Ensure radio ground circuit and antenna are correctly installed. If problem does not exist, go to next step. If problem exists, repair as necessary.
Disconnect radio harness connector C3. Connect Diagnostic Readout Box (DRBIII(R)) to Data Link Connector (DLC). Connect Scope Input Cable (CH7058) to channel one connector on DRBIII(R). Connect Red and Black leads and Cable Probe Adapter (CH7062) to scope input cable. Using DRBIII(R), access lab scope 12-volt square wave and set to 20-volt range. Go to next step.
Connect Black lead to ground and Red lead to terminal No. 1 (Violet/Yellow wire) at radio harness connector C3. Turn ignition on. If voltage does not pulse from zero to 7.5 volts, go to next step. If voltage pluses from zero to 7.5 volts, replace radio.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C1. Measure resistance in Violet/Yellow wire between terminal No. 1 at radio harness connector C3 and terminal No. 5 at BCM harness connector C1. (Scheme 7)and (Scheme 20). If resistance is greater than 5 ohms, repair open in Violet/Yellow wire between radio module and BCM. If resistance is 5 ohms or less, replace BCM.
Disconnect radio harness connector C2. Measure resistance between ground and output side of fuse No. 4 in junction block. If resistance is greater than 100 ohms, go to next step. If resistance is 100 ohms or less, repair short to ground in power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Connect all disconnected connectors. Install fuse No. 4. Operate radio. If fuse blows, replace radio. If fuse does not blow, problem is intermittent.

Scheme 20

No Response From Transmission Control Module (TCM)

Note. After making any repairs, perform TRANSMISSION VERIFICATION TEST under VERIFICATION TESTS.

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Body Control Module (BCM). If scan tool communicates with BCM, go to next step. If scan tool does not communicate with BCM, repair communication concern. See «NO RESPONSE FROM BODY CONTROL MODULE (BUS +/- SIGNAL OPEN)»(ref-3597-S01081123762000051100000).
Using scan tool, retrieve Diagnostic Trouble Codes (DTCs) from all module. If no DTCs exist, go to next step. If any DTCs exist, perform appropriate test. See «DIAGNOSTIC TROUBLE CODE IDENTIFICATION»(ref-3597-S09284152172000051100000) table under SELF-DIAGNOSTIC SYSTEM.
Using scan tool, attempt to communicate with all other modules. If scan tool communicates with all other modules, go to next step. If scan tool does not communicate with all other modules, perform appropriate test. See «DIAGNOSTIC TROUBLE CODE IDENTIFICATION»(ref-3597-S09284152172000051100000) table under SELF-DIAGNOSTIC SYSTEM.
Turn ignition off. Disconnect Transmission Control Module (TCM) harness connector. Turn ignition on. Measure voltage at terminal No. 11 (Red/White wire) at TCM harness connector. (Scheme 21) If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Remove starter relay in Power Distribution Center (PDC). (Scheme 22) Measure voltage at terminal No. 8 (Yellow wire) at TCM harness connector while turning ignition switch to start position. If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Turn ignition off. Measure voltage at terminal No. 56 (Red/Light Blue wire) at TCM harness connector. If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Turn ignition off. Measure resistance between ground and terminals No. 53 (Black wire) and No. 57 (Black/Red wire) at TCM harness connector. If both resistances are 5 ohms or less, go to next step. If any resistance is greater than 5 ohms, repair open in appropriate wire between ground and TCM.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C3. Measure resistance in Violet/Yellow wire between terminal No. 43 at TCM harness connector and terminal No. 7 at BCM harness connector C3. (Scheme 7)and (Scheme 21). If resistance is greater than 5 ohms, repair open in Violet/Yellow wire between TCM and BCM. If resistance is 5 ohms or less, replace TCM.

Scheme 21

Scheme 22

Odometer Displays NO BUS

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Attempt to start vehicle. If vehicle starts and runs, go to next step. If vehicle does not start and run, repair communication concern. See «PCI BUS COMMUNICATION FAILURE»(ref-3597-S05458504802000051100000) .
Connect scan tool to Data Link Connector (DLC). Using scan tool, attempt to communicate with instrument cluster. If scan tool communicates with instrument cluster, replace instrument cluster. If scan tool does not communicate with instrument cluster, repair communication concern. See «MIC MESSAGE NOT RECEIVED»(ref-3597-S22452487512000051100000) .

PCI Bus Communication Failure

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Body Control Module (BCM), instrument cluster, Controller Anti-Lock Brake (CAB), and Occupant Restraint Controller (ORC). If communications was established with any of these modules, go to next step. If communications was not established with any of these modules, go to step 3.
Turn ignition off. Check PCI bus wire (Violet/Yellow wire) between BCM and module(s) that communication was not established for opens and shorts. See DATA LINK CONNECTORS article in WIRING DIAGRAMS. Also, check power and ground circuit to module(s) that communication was not established. See POWER DISTRIBUTION and GROUND DISTRIBUTION articles in WIRING DIAGRAMS. If problem exists, repair as necessary. If problem does not exist, problem is intermittent.
Attempt to start vehicle. If vehicle starts and runs, go to next step. If vehicle does not start and run, go to step 5.
Turn ignition off. Disconnect BCM harness connector C1. Measure resistance in Violet/Yellow wire between terminal No. 2 at DLC and terminal No. 14 at BCM harness connector C1. (Scheme 7)and see scheme 12. If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Violet/Yellow wire between DLC and BCM.
Turn ignition off. Connect all disconnected components. Turn ignition on. Measure voltage at terminal No. 2 (Violet/Yellow wire) at DLC harness connector. see scheme 12 If voltage is greater than 7 volts, go to next step. If voltage is 7 volts or less, go to step 9.
Turn ignition off. Disconnect BCM harness connector and disconnect BCM from back of junction block. Turn ignition on. Measure voltage at terminal No. 2 (Violet/Yellow wire) at BCM harness connector C1. If voltage is 7 volts or less, go to next step. If voltage is greater than 7 volts, repair short to voltage in Violet/Yellow wire between DLC and BCM.
Measure voltage at each PCI bus terminals (Violet/Yellow wire) at appropriate BCM harness connector. See «PCI BUS MODULE IDENTIFICATION»(ref-3597-S08970376152000051100000) table. (Scheme 7)and (Scheme 9). If voltage is greater than 7 volts at any terminal, go to next step. If voltage is 7 volts or less at all terminals, replace BCM.
Disconnect appropriate module(s) for circuit that voltage existed at in step 7). See «PCI BUS MODULE IDENTIFICATION»(ref-3597-S08970376152000051100000) table. Measure voltage at appropriate terminal(s) at appropriate BCM harness connector. If voltage is greater than 7 volts, repair short to voltage in appropriate wire. If voltage is 7 volts or less, replace appropriate module(s).
Turn ignition off. Disconnect BCM harness connector and disconnect BCM from back of junction block. Measure resistance between ground and terminal No. 2 (Violet/Yellow wire) at DLC. If resistance is greater than 1000 ohms, go to next step. If resistance is 1000 ohms or less, repair short to ground in Violet/Yellow wire between DLC and BCM.
Measure resistance between ground and each PCI bus terminals (Violet/Yellow wire) at appropriate BCM harness connector. See «PCI BUS MODULE IDENTIFICATION»(ref-3597-S08970376152000051100000) table. (Scheme 7)and (Scheme 9). If resistance is 1000 ohms or less at any terminal, go to next step. If resistance is greater than 1000 ohms at all terminals, replace BCM.
Disconnect appropriate module(s) for circuit that resistance was 1000 ohms or less at in step 10). See «PCI BUS MODULE IDENTIFICATION»(ref-3597-S08970376152000051100000) table. Measure resistance between ground and appropriate terminal(s) at appropriate BCM harness connector. If resistance is 1000 ohms or less, repair short to ground in appropriate wire. If resistance is greater than 1000 ohms, replace appropriate module(s).

BCM Terminal No.		Disconnect Module
Back Of Junction Block (1)
10		Overhead Travel Information System
Connector C1 (2)
4		Temperature Control Head
5		Radio
7		Occupant Restraint Controller
12		Sentry Key Immobilizer Module
13		Instrument Cluster
Connector C3 (2)
1 (C3)		Powertrain Control Module
2		Controller Anti-Lock Brake
7		Transmission Control Module
Connector C4 (2)
9		Memory Heated Seat/Mirror Module
(1) (Scheme 9) (2) (Scheme 7)

(1)	(Scheme 9)

(2)	(Scheme 7)

PCI BUS MODULE IDENTIFICATION

ELECTRICALLY HEATED SYSTEMS

CAUTION

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Note. For electrically heated systems wiring diagrams, see WIRING DIAGRAMS in REAR WINDOW DEFOGGERS and/or POWER SEATS articles.

Driver Heated Seat Switch Open/Shorted To Ground

Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Turn ignition on. Measure voltage at terminal No. 18 (Tan/Dark Green wire) at MHSMM harness connector C1. (Scheme 10) If battery voltage does not exist, go to next step. If battery voltage exists, replace MHSMM.
Turn ignition off. Disconnect driver's heated seat switch harness connector. Measure resistance in Tan/Dark Green wire between terminal No. 6 at driver's heated seat switch harness connector and terminal No. 18 at MHSMM harness connector C1. (Scheme 10)and (Scheme 23). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Tan/Dark Green wire between driver's heated seat switch and MHSMM.
Measure resistance between ground and terminal No. 18 (Tan/Dark Green wire) at MHSMM harness connector C1. If resistance is greater than 1000 ohms, replace driver's heated seat switch. If resistance is 1000 ohms or less, repair short to ground in Tan/Dark Green wire between driver's heated seat switch and MHSMM.

Scheme 23

Driver Heated Seat Switch Stuck In High/Low State

Turn ignition off. Disconnect driver's heated seat switch harness connector. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, clear DTCs. Turn ignition off, then on. Using scan tool, retrieve DTCs. If DRIVER HEATED SEAT SWITCH OPEN/SHORTED TO GROUND is not retrieved, go to next step. If only DRIVER HEATED SEAT SWITCH OPEN/SHORTED TO GROUND is retrieved, replace driver's heated seat switch.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Turn ignition on. Measure voltage at terminal No. 18 (Tan/Dark Green wire) at MHSMM harness connector C1. (Scheme 10) If no voltage exists, replace MHSMM. If any voltage exists, repair short to voltage in Tan/Dark Green wire between driver's heated seat switch and MHSMM.

Driver Seat Heat Output Open

Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C3. Measure resistance between ground and terminal No. 12 (Red/Dark Green wire) at MHSMM harness connector C3. (Scheme 10) If resistance is greater than 8.5 ohms, go to next step. If resistance is 8.5 ohms or less, replace MHSMM.
Disconnect driver's heated seat cushion harness connector. Measure resistance in Red/Dark Green wire between terminal "A" at driver's heated seat cushion harness connector and terminal No. 12 at MHSMM harness connector C3. (Scheme 10)and (Scheme 24). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Red/Dark Green wire between driver's heated seat cushion and MHSMM.
Disconnect driver's heated seat back cushion harness connector. Measure resistance in Brown/Black wire between terminal "B" at driver's heated seat cushion harness connector and terminal "A" at driver's heated seat back cushion harness connector. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Brown/Black wire between driver's heated seat cushion and driver's heated seat back cushion.
Measure resistance between terminals "A" and "B" at driver's heated seat cushion connector (component side). If resistance is 2.5 ohms or less, go to next step. If resistance is greater than 2.5 ohms, replace driver's heated seat cushion.
Measure resistance between ground and terminal "B" (Black wire) at driver's heated seat back cushion harness connector. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between driver's heated seat back cushion and ground.
Measure resistance between terminals "A" and "B" at driver's heated seat back cushion connector (component side). If resistance is 2 ohms or less, problem is intermittent. If resistance is greater than 2 ohms, replace driver's heated seat back cushion.

Scheme 24

Driver Seat Heat Output Short To Gnd

Turn ignition off. Disconnect driver's heated seat cushion harness connector. Connect scan tool to Data Link Connector (DLC). Using scan tool, clear DTCs. Turn ignition off for at least 20 seconds. Turn ignition on. Using scan tool, retrieve DTCs. If this DTC resets, go to next step. If this DTC is not reset, go to step 3.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C3. Measure resistance between ground and terminal No. 12 (Red/Dark Green wire) at MHSMM harness connector C3. (Scheme 10) If resistance is greater than 1000 ohms, replace MHSMM. If resistance is 1000 ohms or less, repair short to ground in Red/Dark Green wire between driver's heated seat cushion and MHSMM.
Measure resistance between ground and terminal "A" at driver's heated seat cushion connector (component side). If resistance is greater than 100 ohms, go to next step. If resistance is 100 ohms or less, replace driver's heated seat cushion.
Disconnect driver's heated seat back cushion harness connector. Measure resistance between ground and terminal "A" at driver's heated seat back cushion connector (component side). If resistance is greater than 100 ohms, go to next step. If resistance is 100 ohms or less, replace driver's heated seat back cushion.
Measure resistance between ground and terminal "B" (Brown/Black wire) at driver's heated seat cushion harness connector. (Scheme 24) If resistance is greater than 1000 ohms, problem is intermittent. If resistance is 1000 ohms or less, repair short to ground in Brown/Black wire between driver's heated seat cushion and driver's heated seat back cushion.

Driver Thermistor Out Of Range High

Turn ignition off. Disconnect driver's heated seat cushion harness connector. Turn ignition on. Turn driver's seat heater on. Measure voltage at terminal "D" (Black/Dark Green wire) at driver's heated seat cushion harness connector. (Scheme 24) If voltage is greater than 5.5 volts, go to next step. If voltage is 5.5 volts or less, go to step 3.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C2. Turn ignition on. Measure voltage at terminal "D" (Black/Dark Green wire) at driver's heated seat cushion harness connector. If no voltage exists, replace MHSMM. If any voltage exists, repair short to voltage in Black/Dark Green wire between driver's heated seat cushion and MHSMM.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Turn ignition on. Measure voltage at terminal "C" (Tan/Light Blue wire) at driver's heated seat cushion harness connector. If no voltage exists, replace driver's heated seat cushion. If any voltage exists, repair short to voltage in Tan/Light Blue wire between driver's heated seat cushion and MHSMM.

Driver Thermistor Out Of Range Low

Turn ignition off. Disconnect driver's heated seat cushion harness connector. Turn ignition on. Turn driver's seat heater on. Measure voltage at terminal "D" (Black/Dark Green wire) at driver's heated seat cushion harness connector. (Scheme 24) If voltage is 4.5 volts or less, go to next step. If voltage is greater than 4.5 volts, go to step 6.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure resistance in Tan/Light Blue wire between terminal "C" at driver's heated seat cushion harness connector and terminal No. 4 at MHSMM harness connector C1. (Scheme 10)and (Scheme 24). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Tan/Light Blue wire between driver's heated seat cushion and MHSMM.
Measure resistance between ground and terminal "C" at driver's heated seat cushion connector (component side). If resistance is greater than 1000 ohms, go to next step. If resistance is 1000 ohms or less, replace driver's heated seat cushion.
Measure resistance between ground and terminal "C" (Tan/Light Blue wire) at driver's heated seat cushion harness connector. If resistance is greater than 1000 ohms, go to next step. If resistance is 1000 ohms or less, repair short to ground in Tan/Light Blue wire between driver's heated seat cushion and MHSMM.
Measure resistance between terminals "C" and "D" at driver's heated seat cushion connector (component side). If resistance is 70 k/ohms or less, replace MHSMM. If resistance is greater than 70 k/ohms, replace driver's heated seat cushion.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C2. Measure resistance between ground and terminal "D" (Black/Dark Green wire) at driver's heated seat cushion harness connector. If resistance is greater than 1000 ohms, go to next step. If resistance is 1000 ohms or less, repair short to ground in Black/Dark Green wire between driver's heated seat cushion and MHSMM.
Measure resistance in Black/Dark Green wire between terminal "D" at driver's heated seat cushion harness connector and terminal No. 15 at MHSMM harness connector C2. (Scheme 10)and (Scheme 24). If resistance is 5 ohms or less, replace MHSMM. If resistance is greater than 5 ohms, repair open in Black/Dark Green wire between driver's heated seat cushion and MHSMM.

Passenger Heated Seat Switch Open/Shorted To Ground

Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Turn ignition on. Measure voltage at terminal No. 5 (Tan/Light Green wire) at MHSMM harness connector C1. (Scheme 10) If battery voltage does not exist, go to next step. If battery voltage exists, replace MHSMM.
Turn ignition off. Disconnect passenger's heated seat switch harness connector. Measure resistance in Tan/Light Green wire between terminal No. 6 at passenger's heated seat switch harness connector and terminal No. 5 at MHSMM harness connector C1. (Scheme 10)and (Scheme 23). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Tan/Light Green wire between passenger's heated seat switch and MHSMM.
Measure resistance between ground and terminal No. 5 (Tan/Light Green wire) at MHSMM harness connector C1. If resistance is greater than 1000 ohms, replace passenger's heated seat switch. If resistance is 1000 ohms or less, repair short to ground in Tan/Light Green wire between passenger's heated seat switch and MHSMM.

Passenger Heated Seat Switch Stuck In High/Low State

Turn ignition off. Disconnect passenger's heated seat switch harness connector. Connect scan tool to Data Link Connector (DLC). Using scan tool, clear DTCs, then retrieve DTCs. If PASSENGER HEATED SEAT SWITCH OPEN/SHORTED TO GROUND is not retrieved, go to next step. If only PASSENGER HEATED SEAT SWITCH OPEN/SHORTED TO GROUND is retrieved, replace passenger's heated seat switch.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Turn ignition on. Measure voltage at terminal No. 5 (Tan/Light Green wire) at MHSMM harness connector C1. (Scheme 10) If no voltage exists, replace MHSMM. If any voltage exists, repair short to voltage in Tan/Light Green wire between passenger's heated seat switch and MHSMM.

Passenger Seat Heat Output Open

Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C3. Measure resistance between ground and terminal No. 6 (Red/Tan wire) at MHSMM harness connector C3. (Scheme 10) If resistance is not 1.5-3.5 ohms, go to next step. If resistance is 1.5-3.5 ohms, replace MHSMM.
Disconnect passenger's heated seat back cushion harness connector. Measure resistance between ground and terminal "B" (Black wire) at passenger's heated seat back cushion harness connector. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between passenger's heated seat back cushion and ground.
Disconnect passenger's heated seat cushion harness connector. Measure resistance in Brown/Black wire between terminal "B" at passenger's heated seat cushion harness connector and terminal "A" at passenger's heated seat back cushion harness connector. (Scheme 24) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Brown/Black wire between passenger's heated seat cushion and passenger's heated seat back cushion.
Measure resistance between terminals "A" and "B" at passenger's heated seat back cushion connector (component side). If resistance is 2 ohms or less, go to next step. If resistance is greater than 2 ohms, replace passenger's heated seat back cushion.
Measure resistance between terminals "A" and "B" at passenger's heated seat cushion connector (component side). If resistance is 2 ohms or less, go to next step. If resistance is greater than 2 ohms, replace passenger's heated seat cushion.
Measure resistance in Red/Tan wire between terminal "A" at passenger's heated seat cushion harness connector and terminal No. 6 at MHSMM harness connector C3. (Scheme 10)and (Scheme 24). If resistance is 5 ohms or less, problem is intermittent. If resistance is greater than 5 ohms, repair open in Red/Tan wire between passenger's heated seat cushion and MHSMM.

Passenger Seat Heat Output Short To Gnd

Turn ignition off. Disconnect passenger's heated seat cushion harness connector. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, clear DTCs. Turn ignition off for at least 20 seconds. Turn ignition on. Using scan tool, retrieve DTCs. If this DTC resets, go to next step. If this DTC is not reset, go to step 3.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C3. Measure resistance between ground and terminal No. 6 (Red/Tan wire) at MHSMM harness connector C3. (Scheme 10) If resistance is greater than 1000 ohms, replace MHSMM. If resistance is 1000 ohms or less, repair short to ground in Red/Tan wire between passenger's heated seat cushion and MHSMM.
Disconnect passenger's heated seat back cushion harness connector. Measure resistance between ground and terminal "A" at passenger's heated seat back cushion connector (component side). If resistance is greater than 100 ohms, go to next step. If resistance is 100 ohms or less, replace passenger's heated seat back cushion.
Measure resistance between ground and terminal "B" (Brown/Black wire) at passenger's heated seat cushion harness connector. (Scheme 24) If resistance is greater than 1000 ohms, go to next step. If resistance is 1000 ohms or less, repair short to ground in Brown/Black wire between passenger's heated seat cushion and passenger's heated seat back cushion.
Measure resistance between ground and terminal "A" at passenger's heated seat cushion connector (component side). If resistance is greater than 100 ohms, problem is intermittent. If resistance is 100 ohms or less, replace passenger's heated seat cushion.

Passenger Thermistor Out Of Range High

Turn ignition off. Disconnect passenger's heated seat cushion harness connector. Turn ignition on. Turn passenger's seat heater on. Measure voltage at terminal "D" (Black/Light Green wire) at passenger's heated seat cushion harness connector. (Scheme 24) If voltage is greater than 5.5 volts, go to next step. If voltage is 5.5 volts or less, go to step 3.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C2. Turn ignition on. Measure voltage at terminal "D" (Black/Light Green wire) at passenger's heated seat cushion harness connector. If no voltage exists, replace MHSMM. If any voltage exists, repair short to voltage in Black/Light Green wire between passenger's heated seat cushion and MHSMM.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Turn ignition on. Measure voltage at terminal "C" (Tan/Dark Blue wire) at passenger's heated seat cushion harness connector. If no voltage exists, replace passenger's heated seat cushion. If any voltage exists, repair short to voltage in Tan/Dark Blue wire between passenger's heated seat cushion and MHSMM.

Passenger Thermistor Out Of Range Low

Turn ignition off. Disconnect passenger's heated seat cushion harness connector. Turn ignition on. Turn passenger's seat heater on. Measure voltage at terminal "D" (Black/Light Green wire) at passenger's heated seat cushion harness connector. (Scheme 24) If voltage is 4.5 volts or less, go to next step. If voltage is greater than 4.5 volts, go to step 6.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure resistance in Tan/Dark Blue wire between terminal "C" at passenger's heated seat cushion harness connector and terminal No. 17 at MHSMM harness connector C1. (Scheme 10)and (Scheme 24). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Tan/Dark Blue wire between passenger's heated seat cushion and MHSMM.
Measure resistance between ground and terminal "C" (Tan/Dark Blue wire) at passenger's heated seat cushion harness connector. If resistance is greater than 1000 ohms, go to next step. If resistance is 1000 ohms or less, repair short to ground in Tan/Dark Blue wire between passenger's heated seat cushion and MHSMM.
Measure resistance between terminals "C" and "D" at passenger's heated seat cushion connector (component side). If resistance is 70 k/ohms or less, go to next step. If resistance is greater than 70 k/ohms, replace passenger's heated seat cushion.
Measure resistance between ground and terminal "C" at passenger's heated seat cushion connector (component side). If resistance is greater than 1000 ohms, replace MHSMM. If resistance is 1000 ohms or less, replace passenger's heated seat cushion.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C2. Measure resistance between ground and terminal "D" (Black/Light Green wire) at passenger's heated seat cushion harness connector. If resistance is greater than 1000 ohms, go to next step. If resistance is 1000 ohms or less, repair short to ground in Black/Light Green wire between passenger's heated seat cushion and MHSMM.
Measure resistance in Black/Light Green wire between terminal "D" at passenger's heated seat cushion harness connector and terminal No. 14 at MHSMM harness connector C2. (Scheme 10)and (Scheme 24). If resistance is 5 ohms or less, replace MHSMM. If resistance is greater than 5 ohms, repair open in Black/Light Green wire between passenger's heated seat cushion and MHSMM.

Rear Window Defogger Inoperative (Manual A/C)

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, check MODE SW MUX voltage. Press and hold defogger switch on. If approximately.25 volt is displayed, go to next step. If approximately.25 volt is not displayed, replace A/C control head.
Turn ignition off. Measure resistance between ground and left side bus bar on rear window. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair rear window defogger grid ground wire.
Turn ignition on. Turn defogger on. Connect a test light between ground and right side bus bar on rear window. If test light does not illuminate, go to next step. If test light illuminates, repair open in rear window defogger grid. See appropriate REAR WINDOW DEFOGGERS article.
Remove rear window defogger relay. Measure voltage at terminals No. 2 and 5 (Black/Pink wires) at rear window defogger relay socket. If battery voltage exists at both terminals, go to next step. If battery voltage does not exist at both terminals, go to step 8.
Using a fused jumper wire, connect terminals No. 1 (Black/White wire) and No. 2 (Black/Pink wire) at rear window defogger relay socket. Measure voltage at right side bus bar on rear window. If battery voltage exists, go to next step. If battery voltage does not exist, repair open in Black/White wire between rear window defogger relay and rear window defogger grid. On vehicles equipped with radio antenna in rear window, check for open circuit in rear window defogger/antenna module. Rear window defogger/antenna module is located behind right rear quarter trim panel.
Turn ignition off. Connect a test light between terminals No. 5 (Black/Pink wire) and No. 4 (Dark Blue/White wire) at rear window defogger relay socket. Turn ignition on. Turn rear window defogger on. If test light does not illuminate, go to next step. If test light illuminates, replace rear window defogger relay.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C4. Connect jumper wire between ground and terminal No. 14 (Dark Blue/White wire) at BCM harness connector C4. (Scheme 7) Measure resistance between ground and terminal No. 4 (Dark Blue/White wire) at rear window defogger relay socket. If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Dark Blue/White wire between BCM and rear window defogger relay.
Turn ignition off. Remove and inspect fuse "A" in Power Distribution Center (PDC). If fuse is blown, go to next step. If fuse is okay, repair open in Black/Pink wire between PDC and rear window defogger relay.
Ensure fuse "A" is still removed. Measure resistance between ground and terminals No. 2 and 5 (Black/Pink wires) at rear window defogger relay socket. If resistance is greater than 5 ohms at both terminals, go to next step. If resistance is 5 ohms or less at either terminal, repair short to ground in Black/Pink wire between rear window defogger relay and PDC.
Replace fuse "A". Install rear window defogger relay. Turn ignition on. Turn rear window defogger on. If rear window defogger operates without blowing fuse, system is currently operating properly. If rear window defogger operates and blows fuse, repair short to ground in Black/White wire between rear window defogger relay and rear window defogger grid. On vehicles equipped with radio antenna in rear window, check for short to ground in rear window defogger/antenna module. Rear window defogger/antenna module is located behind right rear quarter trim panel.

Rear Window Defogger Inoperative W/ATC

Turn ignition on. Using scan tool, check EBL SW status. Press defogger switch on and off. If scan tool displays OPEN and CLOSED, go to next step. If scan tool does not display OPEN and CLOSED, replace Automatic Temperature Control (ATC) head.
Turn ignition off. Measure resistance between ground and left side bus bar on rear window. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair rear window defogger grid ground wire.
Turn ignition on. Turn defogger on. Connect a test light between ground and right side bus bar on rear window. If test light does not illuminate, go to next step. If test light illuminates, repair open in rear window defogger grid. See appropriate REAR WINDOW DEFOGGERS article.
Turn ignition off. Remove rear window defogger relay. Rear window defogger relay is located on right side of trunk. Measure voltage at terminals No. 2 and 5 (Black/Pink wires) at rear window defogger relay socket. If battery voltage exists at both terminals, go to next step. If battery voltage does not exist at both terminals, go to step 8.
Using a fused jumper wire, connect terminals No. 1 (Black/White wire) and No. 2 (Black/Pink wire) at rear window defogger relay socket. Measure voltage at right side bus bar on rear window. If battery voltage exists, go to next step. If battery voltage does not exist, repair open in Black/White wire between rear window defogger relay and rear window defogger grid. On vehicles equipped with radio antenna in rear window, check for open circuit in rear window defogger/antenna module. Rear window defogger/antenna module is located behind right rear quarter trim panel.
Turn ignition off. Connect a test light between terminals No. 5 (Black/Pink wire) and No. 4 (Dark Blue/White wire) at rear window defogger relay socket. Turn ignition on. Turn rear window defogger on. If test light does not illuminate, go to next step. If test light illuminates, replace rear window defogger relay.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C4. Connect jumper wire between ground and terminal No. 14 (Dark Blue/White wire) at BCM harness connector C4. (Scheme 7) Measure resistance between ground and terminal No. 4 (Dark Blue/White wire) at rear window defogger relay socket. If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Dark Blue/White wire between BCM and rear window defogger relay.
Turn ignition off. Remove and inspect fuse "A" in Power Distribution Center (PDC). If fuse is blown, go to next step. If fuse is okay, repair open in Black/Pink wire between PDC and rear window defogger relay.
Ensure fuse "A" is still removed. Measure resistance between ground and terminals No. 2 and 5 (Black/Pink wires) at rear window defogger relay socket. If resistance is greater than 5 ohms at both terminals, go to next step. If resistance is 5 ohms or less at either terminal, repair short to ground in Black/Pink wire between rear window defogger relay and PDC.
Replace fuse "A". Install rear window defogger relay. Turn ignition on. Turn rear window defogger on. If rear window defogger operates without blowing fuse, system is currently operating properly. If rear window defogger operates and blows fuse, repair short to ground in Black/White wire between rear window defogger relay and rear window defogger grid. On vehicles equipped with radio antenna in rear window, check for short to ground in rear window defogger/antenna module. Rear window defogger/antenna module is located behind right rear quarter trim panel.

EXTERIOR LIGHTING SYSTEMS

CAUTION

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Note. For exterior lighting systems wiring diagrams, see DAYTIME RUNNING LIGHTS, HEADLIGHT SYSTEMS and/or EXTERIOR LIGHTS articles.

Headlight Switch Input Failure

Connect scan tool to Data Link Connector (DLC). Ensure headlight switch is off. Turn ignition on. Using scan tool, check headlight switch voltage. If greater than 4.8 volts is displayed, go to next step. If 4.8 volts or less is displayed, go to step 8.
Turn ignition off. Disconnect headlight switch harness connector. Turn ignition on. Measure voltage at terminal No. 12 (Yellow wire) at headlight switch harness connector. (Scheme 25) If voltage is greater than 5.3 volts, go to next step. If voltage is 5.3 volts or less, go to step 5.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C2. Measure resistance in Yellow wire between terminal No. 12 at headlight switch harness connector and terminal No. 2 at BCM harness connector C2. (Scheme 7)and (Scheme 25). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Yellow wire between headlight switch and BCM.
Turn ignition on. Measure voltage at terminal No. 2 (Yellow wire) at BCM harness connector C2. If no voltage exists, replace BCM. If any voltage exists, repair short to voltage in Yellow wire between headlight switch and BCM.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C2. Measure resistance in White wire between terminal No. 19 at headlight switch harness connector and terminal No. 6 at BCM harness connector C2. (Scheme 7)and (Scheme 25). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in White wire between headlight switch and BCM.
Measure resistance in Yellow wire between terminal No. 12 at headlight switch harness connector and terminal No. 2 at BCM harness connector C1. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Yellow wire between headlight switch and BCM.
Connect BCM harness connector C2. Using a fused jumper wire, connect terminals No. 6 (White wire) and No. 12 (Yellow wire) at headlight switch harness connector. Using scan tool, check headlight switch voltage. If zero volts is not displayed, replace BCM. If zero volts is displayed, replace headlight switch.
Turn ignition off. Disconnect headlight switch harness connector. Turn ignition on. Using scan tool, check headlight switch voltage. If 4.8-5.2 volts is not displayed, go to next step. If 4.8-5.2 volts is displayed, replace headlight switch.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C2. Measure resistance between ground and terminal No. 2 (Yellow wire) at BCM harness connector C2. (Scheme 7) If resistance is greater than 1000 ohms, replace BCM. If resistance is 1000 ohms or less, repair short to ground in Yellow wire between headlight switch and BCM.

Scheme 25

Auto Lamps And/Or Fog Lights Not Operating Properly

Note. Ensure headlights and fog lights operate properly before performing the following test procedure.

Turn fog lights off. Turn headlight switch to AUTO position. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, check headlight switch voltage. If approximately 2.3 volts is displayed, go to next step. If approximately 2.3 volts is not displayed, replace headlight switch.
Turn fog lights on. Using scan tool, check headlight switch voltage. If approximately 3.7 volts is displayed, go to next step. If approximately 3.7 volts is not displayed, replace headlight switch.
Using scan tool, monitor sun sensor/VTSS indicator voltage. Shine bright light on sun sensor/VTSS indicator, then cover sun sensor/VTSS indicator. Voltage display should change from zero volts to 5 volts. If voltage displayed is always greater than 4.8 volts, go to next step. If voltage is always.5 volt or less, go to step 8. If voltage is as specified, replace Body Control Module (BCM).
Turn ignition off. Disconnect sun sensor/VTSS indicator harness connector. Using a fused jumper wire, connector terminals No. 1 (Dark Blue wire) and No. 2 (Dark Blue/Gray wire) at sun sensor/VTSS indicator harness connector. (Scheme 26) Turn ignition on. Using scan tool, check sun sensor/VTSS indicator voltage. If greater than.5 volt is displayed, go to next step. If.5 volt or less is displayed, replace sun sensor/VTSS indicator.
Turn ignition off. Disconnect BCM harness connector C2. Measure resistance in Dark Blue wire between terminal No. 1 at sun sensor/VTSS indicator harness connector and terminal No. 10 at BCM harness connector C2. (Scheme 7)and (Scheme 26). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Dark Blue wire between sun sensor/VTSS indicator and BCM.
Turn ignition on. Measure voltage at terminal No. 10 (Dark Blue wire) at BCM harness connector. If no voltage exists, go to next step. If any voltage exists, repair short to voltage in Dark Blue wire between sun sensor/VTSS indicator and BCM.
Turn ignition off. Disconnect BCM harness connector C1. Measure resistance in Dark Blue/Gray wire between terminal No. 2 at sun sensor/VTSS indicator harness connector and terminal No. 8 at BCM harness connector C1. If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Dark Blue/Gray wire between sun sensor/VTSS indicator and BCM.
Turn ignition off. Disconnect sun sensor/VTSS indicator harness connector. Turn ignition on. Using scan tool, check sun sensor/VTSS indicator voltage. If 4.8 volts or less is displayed, go to next step. If greater than 4.8 volts is displayed, replace sun sensor/VTSS indicator.
Turn ignition off. Disconnect BCM harness connector C2. Measure resistance between ground and terminal No. 1 (Dark Blue wire) at BCM harness connector C2. (Scheme 7) If resistance is greater than 1000 ohms, replace BCM. If resistance is 1000 ohms or less, repair short to ground in Dark Blue wire between sun sensor/VTSS indicator and BCM.

Scheme 26

Fog Lights Will Not Turn Off

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, check for Body Control Module (BCM) Diagnostic Trouble Codes (DTCs). If not DTCs exists, go to next step. If any DTCs exists, perform appropriate test. See «DIAGNOSTIC TROUBLE CODE IDENTIFICATION»(ref-3597-S09284152172000051100000) table under SELF-DIAGNOSTIC SYSTEM.
Ensure headlight switch is off. Using scan tool, check headlight switch voltage. If 4.3-4.8 volts is displayed, go to next step. If 4.3-4.8 volts is not displayed, replace headlight switch.
Remove fog light relay from junction block. If fog lights turn off, go to next step. If fog lights do not turn off, repair short to voltage in Light Blue wire between junction block and fog lights. See HEADLIGHT SYSTEMS article.
Install fog light relay. If relay clicks when installed, replace BCM. If fog light relay does not click when installed, replace fog light relay.

Fog Lights Will Not Turn On

Note. Ensure headlights operate properly before performing the following test procedure.

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, check headlight switch voltage. If approximately 3 volts is displayed, go to next step. If approximately 3 volts is not displayed, replace headlight switch.
Using scan tool, activate fog light relay. If relay clicks, go to next step. If relay does not click, go to step 5.
Remove fog light relay from junction block. Measure voltage at terminal No. 66 at fog light relay socket on junction block. (Scheme 14) If battery voltage exists, go to next step. If battery voltage does not exist, replace junction block.
Using a fused jumper wire, connect terminals No. 66 and 67 at fog light relay socket on junction block. If fog lights illuminate, replace fog light relay. If fog lights do not illuminate, repair open in Light Blue wire between fog light relay and fog lights.
Turn ignition off. Check fuse No. 16 (20-amp) in junction block. (Scheme 14) If fuse is blown, go to next step. If fuse is okay, go to step 7.
Remove fog light relay from junction block. Check for short to ground in Light Blue wire between fog light relay, fog lights and headlight switch. If problem does not exist, replace fuse. If problem exists, repair short to ground in Light Blue wire.
Turn ignition off. Remove fog light relay from junction block. Disconnect Body Control Module (BCM) from back of junction block. Measure resistance between terminal No. 64 at fog light relay socket on junction block and terminal No. 17 at BCM connector on back of junction block. (Scheme 9)and (Scheme 14). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace junction block.
Connect BCM to back of junction block. Connect a test light between positive battery voltage and terminal No. 64 at fog light relay socket on junction block. Turn ignition on. Using scan tool, activate fog light relay. If test light illuminates, replace fog light relay. If fog light relay does not illuminate, replace BCM.

Headlight Time Delay Inoperative

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, check ignition voltage supply to Body Control Module (BCM). If greater than 10 volts is displayed, replace BCM. If 10 volts or less is displayed, check ignition voltage supply to BCM. See FUSED IGNITION SWITCH OUTPUT TO BCM under COMMUNICATIONS.

High Beam Headlights Will Not Turn Off

Remove high beam relay in junction block. (Scheme 14) If high beams turn off, go to next step. If high beams do not turn off, repair short to voltage in wiring between high beam relay and headlights.
Measure voltage at terminal No. 57 at high beam relay socket on junction block. If voltage is greater than one volt, go to next step. If voltage is one volt or less, replace high beam relay.
Disconnect multifunction switch harness connector. Measure voltage at terminal No. 57 at high beam relay socket on junction block. If voltage is greater than one volt, repair short to voltage in White/Light Green wire between multifunction switch and high beam relay. If voltage is one volt or less, replace multifunction switch.

High Beam Headlights Will Not Turn On

Turn headlights on. Cycle high beams on and off. If high beam relay clicks, go to next step. If high beam relay does not click, go to step 4.
Remove high beam relay from junction block. Measure voltage at terminal No. 58 at high beam relay socket on junction block. (Scheme 14) If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Using a fused jumper wire, connect terminals No. 58 and 59 at high beam relay socket on junction block. If high beams illuminate, replace high beam relay. If high beams do not illuminate, repair open in wiring between high beam relay and headlights.
Check fuse No. 11 (20-amp) in junction block. If fuse is blown, go to next step. If fuse is okay, go to step 7.
Remove fuse No. 11 from junction block. Disconnect multifunction switch harness connector. Measure resistance between ground and output side of fuse No. 11 in junction block. If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, repair short to ground in Brown/White wire between junction block and multifunction switch.
Remove high beam relay from junction block. Measure resistance between ground and terminal No. 57 at high beam relay socket on junction block. (Scheme 14) If resistance is greater than 5 ohms, replace high beam relay. If resistance is 5 ohms or less, repair short to ground in White/Light Green wire between high beam relay and multifunction switch.
Remove high beam relay from junction block. Measure resistance between ground and terminal No. 56 at high beam relay socket on junction block. (Scheme 14) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between junction block and ground.
Turn high beams on. Measure voltage at terminal No. 57 at high beam relay socket on junction block. If battery voltage does not exist, go to next step. If battery voltage exists, replace high beam relay.
Turn headlights off. Turn ignition off. Disconnect headlight switch harness connector at multifunction switch. Turn low beams on. Measure voltage at terminal No. 4 (Brown/White wire) at headlight switch harness connector. (Scheme 25) If battery voltage exists, go to next step. If battery voltage does not exist, repair open in Brown/White wire between headlight switch and junction block.
Ensure high beam relay is installed. Using a fused jumper wire, connect terminals No. 4 (Brown/White wire) and No. 7 (White/Light Green wire) at headlight switch harness connector. If high beams illuminate, replace headlight switch. If high beams do not illuminate, repair open in White/Light Green wire between headlight switch harness connector and junction block.

Low Beam Headlights Will Not Turn Off

Connect scan tool to Data Link Connector (DLC). Using scan tool, retrieve Body Control Module (BCM) Diagnostic Trouble Codes (DTCs). If no DTCs exist, go to next step. If any DTCs exists, repair those before continuing. See «DIAGNOSTIC TROUBLE CODE IDENTIFICATION»(ref-3597-S09284152172000051100000) table under SELF-DIAGNOSTIC SYSTEM.
Ensure headlight switch is off. Using scan tool, check headlight switch voltage. If 4.3-4.8 volts is displayed, go to next step. If 4.3-4.8 volts is not displayed, replace headlight switch.
Turn ignition off. Remove low beam relay from junction block. (Scheme 14) If low beams are not illuminated, go to next step. If low beams are illuminated, repair short to voltage in wiring between low beam relay and headlights.
Replace low beam relay with known-good unit. If low beams do not operate properly, go to next step. If low beams operate properly, replace low beam relay.
Turn ignition off. Remove low beam relay. Disconnect Body Control Module (BCM) from back of junction block. Measure resistance between ground and terminal No. 14 at BCM connector on back of junction block. (Scheme 9) If resistance is greater than 100 ohms, go to next step. If resistance is 100 ohms or less, replace junction block.
Measure resistance between terminal No. 14 and each other terminal at BCM connector on back of junction block. If any resistance is less than 100 ohms, replace junction block. If all resistances are greater than 100 ohms, replace BCM.

Low Beam Headlights Will Not Turn On

Connect scan tool to Data Link Connector (DLC). Turn low beams on. Ensure fog lights are off. Using scan tool, check headlight switch voltage. If 1.4-1.8 volts is displayed, go to next step. If 1.4-1.8 volts is not displayed, replace headlight switch.
Using scan tool, activate low beam relay. If low beam relay clicks, go to next step. If low beam relay does not click, go to step 5.
Turn ignition off. Remove low beam relay from junction block. Measure voltage at terminal No. 62 at low beam relay socket on junction block. (Scheme 14) If battery voltage exists, go to next step. If battery voltage does not exist, replace junction block.
Ensure fuses No. 10 (10-amp) and No. 12 (10-amp) in junction block are okay. Using a fused jumper wire, connect terminals No. 62 and 63 at low beam relay socket on junction block. If low beams illuminate, replace low beam relay. If low beams do not illuminate, repair open in wiring between junction block and headlights.
Turn ignition off. Remove low beam relay from junction block. Measure voltage at terminal No. 61 at low beam relay socket on junction block. (Scheme 14) If battery voltage exists, go to next step. If battery voltage does not exist, go to step 8.
Connect at test light between terminals No. 60 and 61 at low beam relay socket on junction block. Using scan tool, activate low beam relay. If test light does not illuminate, go to next step. If test light illuminates, replace low beam relay.
Turn ignition off. Disconnect Body Control Module (BCM) from back of junction block. Measure resistance between terminal No. 60 at low beam relay socket on junction block and terminal No. 14 at BCM connector on back of junction block. If resistance is greater than 5 ohms, replace junction block. If resistance is 5 ohms or less, replace BCM.
Check fuse "D" in power distribution center. If fuse is blown, repair short to ground in Light Blue/Red wire between junction block and power distribution center. If fuse is okay, repair open in Light Blue/Red wire between junction block and power distribution center.

Parking Lights Will Not Turn Off

Turn headlights off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, check headlight switch voltage. If approximately 4.5 volts is displayed, go to next step. If approximately 4.5 volts is not displayed, replace headlight switch.
Turn ignition off. Remove parking light relay from junction block. If parking lights turn off, go to next step. If parking lights do not turn off, repair short to voltage in Black/Yellow wire between junction block and parking lights.
Install parking light relay. If parking light relay clicks, replace Body Control Module (BCM). If parking light relay does not click, replace parking light relay.

Parking Lights Will Not Turn On

Connect scan tool to Data Link Connector (DLC). Turn parking lights on. Turn ignition on. Using scan tool, check headlight switch voltage. If approximately.5 volt is displayed, go to next step. If approximately.5 volt is not displayed, replace headlight switch.
Using scan tool, activate parking light relay. If parking light relay clicks, go to next step. If parking light relay does not click, go to step 5.
Remove parking light relay from junction block. Using a fused jumper wire, connect terminals No. 54 and 55 at parking light relay socket on junction block. (Scheme 14) If parking lights illuminate, go to next step. If parking lights do not illuminate, repair open in Black/Yellow wire between junction block and parking lights.
Measure voltage at terminal No. 54 at parking light relay socket on junction block. If battery voltage exists, replace parking light relay. If battery voltage does not exist, replace junction block.
Remove parking light relay. Measure voltage at terminal No. 53 at parking light relay socket on junction block. (Scheme 14) If battery voltage exists, go to next step. If battery voltage does not exist, go to step 8.
Connect a test light between terminals No. 52 and 53 at parking light relay socket on junction block. Using scan tool, activate parking light relay. If test light does not illuminate, go to next step. If test light illuminates, replace parking light relay.
Turn ignition off. Disconnect Body Control Module (BCM) from back of junction block. Measure resistance between terminal No. 52 at parking light relay socket on junction block and terminal No. 16 at BCM connector on back or junction block. (Scheme 9)and (Scheme 14). If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, replace junction block.
Check fuse No. 7 (20-amp) in junction block. If fuse is blown, go to next step. If fuse is okay, repair open or short in Pink/White wire between power distribution center and junction block.
Remove fuse No. 7 from junction block. Measure resistance between ground and output side of fuse No. 7. If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace junction block.
Turn ignition off. Disconnect junction block harness connectors C7 and C10. (Scheme 9) Measure resistance between ground and terminal No. 55 at parking light relay socket on junction block. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair short to ground in Black/Yellow wire between junction block and parking lights.
Disconnect Body Control Module (BCM) from back of junction block. Measure resistance between ground and terminal No. 55 at parking light relay socket on junction block. If resistance is 5 ohms or less, replace junction block. If resistance is greater than 5 ohms, replace BCM.

INSTRUMENT CLUSTER SYSTEMS

CAUTION

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Note. For instrument panel wiring diagrams, see WIRING DIAGRAMS in appropriate INSTRUMENT PANELS article.

Dimming Level Switch Failure

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, check dimming level voltage. If.2-4.0 volts is displayed, go to next step. If.2-4.0 volts is not displayed, go to step 3.
Using scan tool, clear DTCs. Rotate dimmer switch from low to high several times. Using scan tool, retrieve DTCs. If this DTC resets, replace Body Control Module (BCM). If this DTC does not reset, problem is intermittent.
Using scan tool, check dimming level voltage. If greater than 4.8 volts is displayed, go to next step. If 4.8 volts or less is displayed, go to step 10.
Turn ignition off. Close all doors. Turn all lights off. Disconnect headlight switch harness connector. Measure resistance between ground and terminal No. 6 (White wire) at headlight switch harness connector. (Scheme 25) If resistance is 20 ohms or less, go to next step. If resistance is greater than 20 ohms, go to step 9.
Turn ignition on. Measure voltage at terminal No. 3 (Red wire) at headlight switch harness connector. If battery voltage exists, go to next step. If battery voltage does not exist, go to step 8.
Connect a test light between ground and terminal No. 3 (Red wire) at headlight switch harness connector. If test light illuminates, go to next step. If test light does not illuminate, replace headlight switch.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C2. Connect a test light between ground and terminal No. 3 (Red wire) at headlight switch harness connector. If test light illuminates, repair short to voltage in Red wire between headlight switch and BCM. If test light does not illuminate, replace BCM.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C2. Measure resistance in Red wire between terminal No. 3 at headlight switch harness connector and terminal No. 21 at BCM harness connector C2. (Scheme 7)and (Scheme 25). If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Red wire between headlight switch and BCM.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C2. Measure resistance in White wire between terminal No. 6 at headlight switch harness connector and terminal No. 19 at BCM harness connector C2. (Scheme 7)and (Scheme 25). If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in White wire between headlight switch and BCM.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C2. Measure resistance between ground and terminal No. 21 (Red wire) at BCM harness connector C2. (Scheme 7) If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, repair short to ground in Red wire between headlight switch and BCM.
Measure resistance between terminals No. 19 (White wire) and No. 21 (Red wire) at BCM harness connector C2. If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, repair Red wire and White wire shorted to each other between headlight switch and BCM.
Connect BCM harness connector C2. Turn ignition on. Using scan tool, check dimming level voltage. If 5 volts or less is displayed, replace BCM. If greater than 5 volts is displayed, replace headlight switch.

Fuel Level Sending Unit Failure

Turn ignition off. Remove rear seat and disconnect left body harness connector C308. Turn ignition on. Measure voltage at terminal No. 3 (Dark Blue wire) at left body harness connector C308. (Scheme 27) If battery voltage exists, go to next step. If battery voltage does not exist, go to step 6.
Connect a test light between ground and terminal No. 3 (Dark Blue wire) at left body harness connector C308. If test light illuminates, go to next step. If test light does not illuminate, go to step 4.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C4. Connect a test light between ground and terminal No. 3 (Dark Blue wire) at left body harness connector C308. If test light does not illuminate, replace BCM. If test light illuminates, repair short to voltage in Dark Blue wire between left body harness connector C308 and BCM.
Turn ignition off. Measure resistance between ground and terminal No. 8 (Black wire) at left body harness connector C308. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between left body harness connector C308 and ground.
Check wiring between left body harness connector C308 and fuel pump module. If problem exists, repair wiring as necessary. If problem does not exist, replace fuel pump module.
Turn ignition off. Connect left body harness connector C308. Connect scan tool to Data Link Connector (DLC). Using scan tool, check fuel level voltage. If greater than 9 volts is displayed, repair open in Dark Blue wire between Body Control Module (BCM) and fuel pump module. If 9 volts or less is displayed, replace BCM.

Scheme 27

No Messages From ABS

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with anti-lock brake system control module. If communication was established, go to next step. If communication was not established, repair communication concern. See «NO RESPONSE FROM CAB»(ref-3597-S31764683232000051100000) under COMMUNICATIONS.
Using scan tool, clear DTCs. Turn ignition off. Turn ignition on for approximately one minute. Using scan tool, retrieve DTCs. If this DTC resets, replace instrument cluster. If this DTC is not reset, problem is intermittent.

No Messages From AECM

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with air bag control module. If communication was established, go to next step. If communication was not established, repair communication concern. See «NO RESPONSE FROM ORC»(ref-3597-S17904146512000051100000) under COMMUNICATIONS.
Using scan tool, clear DTCs. Turn ignition off. Turn ignition on for approximately one minute. Using scan tool, retrieve DTCs. If this DTC resets, replace instrument cluster. If this DTC is not reset, problem is intermittent.

No Messages From BCM

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Body Control Module (BCM). If communication was established, go to next step. If communication was not established, repair communication concern. See «NO RESPONSE FROM BODY CONTROL MODULE (BUS +/- SIGNAL OPEN)»(ref-3597-S01081123762000051100000) under COMMUNICATIONS.
Using scan tool, clear DTCs. Turn ignition off. Turn ignition on for approximately one minute. Using scan tool, retrieve DTCs. If this DTC resets, replace instrument cluster. If this DTC is not reset, problem is intermittent.

No Messages From EATX

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Transmission Control Module (TCM). If communication was established, go to next step. If communication was not established, repair communication concern. See «NO RESPONSE FROM TRANSMISSION CONTROL MODULE (TCM)»(ref-3597-S33869684662000051100000) under COMMUNICATIONS.
Using scan tool, clear DTCs. Turn ignition off. Turn ignition on for approximately one minute. Using scan tool, retrieve DTCs. If this DTC resets, replace instrument cluster. If this DTC is not reset, problem is intermittent.

No Messages From SBEC

Attempt to start vehicle. If vehicle starts and continues to run, go to next step. If vehicle does not start and continue to run, repair no start condition as necessary. See appropriate BASIC DIAGNOSTIC PROCEDURES article in ENGINE PERFORMANCE.
Using scan tool, clear DTCs. Turn ignition off. Turn ignition on for approximately one minute. Using scan tool, retrieve DTCs. If this DTC resets, replace instrument cluster. If this DTC is not reset, problem is intermittent.

ABS Warning Indicator Not Operating Properly

Note. Ensure no communication concerns exists before proceeding with this test.

Connect scan tool to Data Link Connector (DLC). Using scan tool, retrieve Controller Anti-Lock Brake (CAB) module DTCs. If no CAB DTCs exist, go to next step. If any CAB DTCs exist, repair anti-lock brake system as necessary. See appropriate ANTI-LOCK article in BRAKES.
Turn ignition on. Using scan tool, retrieve DTCs. If no DTCs exist, replace instrument cluster. If any DTCs exist, perform appropriate test. See «DIAGNOSTIC TROUBLE CODE IDENTIFICATION»(ref-3597-S09284152172000051100000) table under SELF-DIAGNOSTIC SYSTEM.

Air Bag Warning Indicator Not Operating Properly

Note. Ensure no communication concerns exists before proceeding with this test.

Connect scan tool to Data Link Connector (DLC). Using scan tool, retrieve air bag control module DTCs. If no air bag control module DTCs exist, go to next step. If any air bag control module DTCs exist, repair air bag system as necessary. For information on air bag DIAGNOSIS & TESTING, see MITCHELL(R) AIR BAG SERVICE & REPAIR MANUAL, DOMESTIC & IMPORTED MODELS.
Turn ignition on. Using scan tool, retrieve DTCs. If no DTCs exist, replace instrument cluster. If any DTCs exist, perform appropriate test. See «DIAGNOSTIC TROUBLE CODE IDENTIFICATION»(ref-3597-S09284152172000051100000) table under SELF-DIAGNOSTIC SYSTEM.

All Gauges Not Operating Correctly

Turn ignition off. Remove and inspect fuses No. 7 (20-amp) and No. 14 (10-amp) in junction block. If both fuses are okay, go to next step. If either fuse is blown, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Install fuses. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, retrieve Body Control Module (BCM) DTCs. If no DTCs exist, go to next step. If any DTCs exist, perform appropriate test. See «DIAGNOSTIC TROUBLE CODE IDENTIFICATION»(ref-3597-S09284152172000051100000) table under SELF-DIAGNOSTIC SYSTEM.
Using scan tool, retrieve DTCs. If no DTCs exist, go to next step. If any DTCs exist, perform appropriate test. See «DIAGNOSTIC TROUBLE CODE IDENTIFICATION»(ref-3597-S09284152172000051100000) table under SELF-DIAGNOSTIC SYSTEM.
Turn ignition off. Disconnect instrument cluster harness connector C1. Measure resistance between ground and terminal No. 6 (Black/Light Green wire) at instrument cluster harness connector C1. (Scheme 11) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black/Light Green wire between instrument cluster and ground.
Turn ignition off. Disconnect instrument cluster harness connector C2. Turn ignition on. Measure voltage at terminal No. 2 (Dark Blue/White wire) at instrument cluster harness connector C2. If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Turn ignition off. Measure resistance between ground and terminal No. 6 (Black wire) at instrument cluster harness connector C2. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between instrument cluster and ground.
Measure voltage at terminal No. 1 (Pink/Red wire) at instrument cluster harness connector C1. If battery voltage exists, replace instrument cluster. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.

Brake Indicator Not Operating Properly

Note. Ensure parking brake is released when performing test procedures unless instructed otherwise.

Check parking brake operation. If parking brake operates properly, go to next step. If parking brake does not operate properly, repair parking brake as necessary. See appropriate DISC & DRUM article in BRAKES.
If brake warning light does not illuminate when brake fluid reservoir is empty, go to next step. If brake warning light illuminates when brake fluid reservoir is empty, go to step 6.
Turn ignition off. Disconnect brake fluid level switch harness connector. Turn ignition on. Wait 10 seconds. Using a fused jumper wire, connect terminals "A" (Black wire) and "B" (Gray/Black wire) at brake fluid level switch harness connector. If brake indicator does not illuminate, go to next step. If brake indicator illuminates, replace brake fluid level switch.
Remove jumper wire from terminal "A" and connect to ground. If brake indicator does not illuminate, go to next step. If brake indicator illuminates, repair open in Black wire between brake fluid level switch and ground.
Turn ignition off. Disconnect instrument cluster harness connector C2. Measure resistance in Gray/Black wire between terminal "B" at brake fluid level switch harness connector and terminal No. 3 at instrument cluster harness connector C2. (Scheme 11) If resistance is 5 ohms or less, replace instrument cluster. If resistance is greater than 5 ohms, repair open in circuit between brake fluid level switch and instrument cluster. This circuit runs through junction block.
Turn ignition on. If brake indicator is on at all times, go to next step. If brake indicator does not illuminate, go to step 11.
Check brake fluid level. If brake fluid is level is okay, go to next step. If brake fluid level is low, full brake fluid reservoir as necessary.
Disconnect brake fluid level switch harness connector. If brake indicator is on at all times, go to next step. If brake indicator goes out, replace brake fluid level switch.
Disconnect parking brake switch harness connector. If brake indicator is on at all times, go to next step. If brake indicator goes out, replace parking brake switch.
Turn ignition off. Disconnect instrument cluster harness connector C2. Measure resistance between ground and terminal No. 3 (Gray/Black wire) at instrument cluster harness connector C2. (Scheme 11) If resistance is greater than 10 ohms, replace instrument cluster. If resistance is 10 ohms or less, repair short to ground in circuit between brake fluid level switch, parking brake switch and instrument cluster. This circuit runs through junction block.
Turn ignition on. Wait 10 seconds. Engage parking brake. If brake indicator illuminates, go to next step. If brake indicator does not illuminate, go to step 13.
Release parking brake. Crank engine using ignition switch. If brake indicator illuminates when engine is cranking, problem is intermittent. If brake indicator does not illuminate while engine is cranking, replace instrument cluster.
Turn ignition off. Disconnect parking brake switch harness connector. Turn ignition on. Wait 10 seconds. Using a fused jumper wire, ground Gray/Black wire at parking brake switch harness connector. If brake indicator does not illuminate, go to next step. If brake indicator illuminates, replace parking brake switch.
Turn ignition off. Disconnect instrument cluster harness connector C2. Measure resistance in Gray/Black wire between parking brake switch harness connector and terminal No. 3 at instrument cluster harness connector C2. (Scheme 11) If resistance is 5 ohms or less, replace instrument cluster. If resistance is greater than 5 ohms, repair open in circuit between parking brake switch and instrument cluster. This circuit runs through junction block.

Charging Indicator Not Operating Properly

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, retrieve Powertrain Control Module (PCM) DTCs. If no DTCs exist, go to next step. If any DTCs exist, repair powertrain concern as necessary. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
Turn ignition off. Turn ignition on and observe charging indicator. If charging indicator illuminates for 3-10 seconds, go to next step. If charging indicator does not illuminate for 3-10 seconds, replace instrument cluster.
Check charging system operation. If charging system is operating properly, replace instrument cluster. If charging system is not operating properly, repair charging system as necessary. See appropriate GENERATORS & REGULATORS article in STARTING & CHARGING SYSTEMS.

Check Engine Indicator Not Operating Properly

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Powertrain Control Module (PCM). If communication was established, go to next step. If communication was not established, repair communication concern. See «NO RESPONSE FROM POWERTRAIN CONTROL MODULE (PCI BUS)»(ref-3597-S05035483622000051100000) under COMMUNICATIONS.
Using scan tool, retrieve Powertrain Control Module (PCM) DTCs. If no DTCs exists, replace instrument cluster. If any DTCs exist, repair powertrain concern as necessary. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

Cluster & Panel Illumination Problems

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Mechanical Instrument Cluster (MIC). If communication was established, go to next step. If communication was not established, repair communication concern. See «MIC MESSAGE NOT RECEIVED»(ref-3597-S22452487512000051100000) under COMMUNICATIONS.
Turn ignition on. Observe dimming level voltage on scan tool while rotating dimming level switch from low to high positions. If voltage changes from.2 to 3.0 volts on scan tool, go to next step. If voltage does not change from.2 to 3.0 volts on scan tool, repair dimming level switch failure. See «DIMMING LEVEL SWITCH FAILURE»(ref-3597-S26923483432000051100000).
Turn parking lights on. Rotate dimming level switch from low to high positions while observing instrument panel lights. If instrument panel lights are always on high, go to next step. If instrument panel lights are not always on high, go to step 12.
Disconnect ashtray light harness connector. Rotate dimming level switch from low to high positions while observing instrument panel lights. If instrument panel lights do not operate properly, go to next step. If instrument panel light operate properly, repair or replace ashtray light for short to voltage.
Disconnect clock light harness connector. Rotate dimming level switch from low to high positions while observing instrument panel lights. If instrument panel lights do not operate properly, go to next step. If instrument panel light operate properly, repair or replace clock light for short to voltage.
Disconnect PRND3L light harness connector. Rotate dimming level switch from low to high positions while observing instrument panel lights. If instrument panel lights do not operate properly, go to next step. If instrument panel light operate properly, repair or replace PRND3L light for short to voltage.
Disconnect radio harness connector C2. Rotate dimming level switch from low to high positions while observing instrument panel lights. If instrument panel lights do not operate properly, go to next step. If instrument panel light operate properly, repair or replace radio for short to voltage.
Disconnect traction control switch harness connector. Rotate dimming level switch from low to high positions while observing instrument panel lights. If instrument panel lights do not operate properly, go to next step. If instrument panel light operate properly, repair or replace traction control switch for short to voltage.
Turn ignition off. Disconnect headlight switch harness connector. Turn ignition on. Measure voltage at terminal No. 9 (Orange wire) at headlight switch harness connector. If battery voltage exists, go to next step. If battery voltage does not exist, replace headlight switch.
Turn ignition off. Connect headlight switch harness connector. Turn ignition on. Disconnect temperature control head harness connector. Rotate dimming level switch from low to high positions while observing instrument panel lights. If instrument panel lights do not operate properly, go to next step. If instrument panel light operate properly, repair or replace temperature control head for short to voltage.
Turn ignition off. Disconnect instrument cluster harness connector C1. Turn ignition on. Measure voltage at terminal No. 4 (Orange wire) at instrument cluster harness connector C1. (Scheme 11) If battery voltage exists, repair short to voltage in Orange wire. If battery voltage does not exist, replace instrument cluster.
Turn ignition on. Using scan tool, retrieve DTCs. If PANEL LAMPS DRIVER OUTPUT CIRCUIT SHORTED is retrieved, go to next step. If PANEL LAMPS DRIVER OUTPUT CIRCUIT SHORTED is not retrieved, replace instrument cluster.
Turn ignition off. Disconnect instrument cluster harness connector C1. Measure resistance between ground and terminal No. 4 (Orange wire) at instrument cluster harness connector C1. (Scheme 11) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace instrument cluster.
Disconnect ashtray light harness connector. Measure resistance between ground and terminal No. 4 (Orange wire) at instrument cluster harness connector C1. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair or replace ashtray light for short to ground.
Disconnect clock harness connector. Measure resistance between ground and terminal No. 4 (Orange wire) at instrument cluster harness connector C1. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair or replace clock for short to ground.
Disconnect headlight switch harness connector. Measure resistance between ground and terminal No. 4 (Orange wire) at instrument cluster harness connector C1. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair or replace headlight switch for short to ground.
Disconnect PRND3L light harness connector. Measure resistance between ground and terminal No. 4 (Orange wire) at instrument cluster harness connector C1. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair or replace PRND3L light for short to ground.
Disconnect radio harness connector C2. Measure resistance between ground and terminal No. 4 (Orange wire) at instrument cluster harness connector C1. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair or replace radio for short to ground.
Disconnect traction control switch harness connector. Measure resistance between ground and terminal No. 4 (Orange wire) at instrument cluster harness connector C1. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair or replace traction control switch for short to ground.
Disconnect temperature control head harness connector. Measure resistance between ground and terminal No. 4 (Orange wire) at instrument cluster harness connector C1. If resistance is 5 ohms or less, repair short to ground in Orange wire. If resistance is greater than 5 ohms, repair or replace temperature control head for short to ground.

Cruise On Indicator Not Operating Properly

Turn ignition off. Turn ignition on and observe cruise on indicator. If cruise on indicator illuminates for 3-10 seconds, go to next step. If cruise on indicator does not illuminate for 3-10 seconds, go to step 4 .
Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, retrieve Powertrain Control Module (PCM) DTCs. If no DTCs exist, go to next step. If any DTCs exist, repair powertrain concern as necessary. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
Test drive vehicle and operate cruise control. If cruise control operate properly, replace instrument cluster. If cruise control does not operate properly, repair cruise control system as necessary. See appropriate CRUISE CONTROL SYSTEMS article.
Using scan tool, attempt to communicate with Powertrain Control Module (PCM). If communication was established, go to next step. If communication was not established, repair communication concern. See «NO RESPONSE FROM POWERTRAIN CONTROL MODULE (PCI BUS)»(ref-3597-S05035483622000051100000) under COMMUNICATIONS.
Turn ignition off. Inspect cruise on indicator bulb and socket on instrument cluster. If problem exists, repair or replace as necessary. If problem does not exist, replace instrument cluster.

Decklid Ajar Indicator Not Operating

Ensure decklid is properly aligned and completely closed. Turn ignition on. If decklid ajar indicator illuminates, go to next step. If decklid ajar indicator does not illuminate, go to step 4.
Turn ignition off. Disconnect decklid release solenoid/ajar switch harness connector. Turn ignition on. If decklid ajar indicator illuminates, go to next step. If decklid ajar indicator does not illuminate, replace decklid release solenoid/ajar switch.
Turn ignition off. Disconnect instrument cluster harness connector C2. Measure resistance between ground and terminal No. 9 (Tan/Black wire) at instrument cluster harness connector C2. (Scheme 11) If resistance is greater than 5 ohms, replace instrument cluster. If resistance is 5 ohms or less, repair short to ground in Tan/Black wire between instrument cluster and decklid release solenoid/ajar switch.
Open decklid. If decklid ajar indicator does not illuminate, go to next step. If decklid ajar indicator illuminates, problem is intermittent.
Turn ignition off. Disconnect decklid release solenoid/ajar switch harness connector. Using a fused jumper wire, ground terminal No. 2 (Tan/Black wire) at decklid release solenoid/ajar switch harness connector. Turn ignition on. If decklid ajar indicator does not illuminate, go to next step. If decklid ajar indicator illuminates, replace decklid release solenoid/ajar switch.
Turn ignition off. Disconnect instrument cluster harness connector C2. Measure resistance in Tan/Black wire between terminal No. 2 at decklid release solenoid/ajar switch harness connector and terminal No. 9 at instrument cluster harness connector C2. (Scheme 11) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Tan/Black wire between instrument cluster and decklid release solenoid/ajar switch.
Turn ignition off. Disconnect instrument cluster harness connector C1. Measure voltage at terminal No. 3 (Pink wire) at instrument cluster harness connector C2. (Scheme 11) If battery voltage exists, replace instrument cluster. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.

Door Ajar Indicator Not Operating Properly

Turn ignition off. Close all doors. Turn ignition on and observe door ajar indicator. If door ajar indicator illuminates for 3-10 seconds, go to next step. If door ajar indicator does not illuminate for 3-10 seconds, replace instrument cluster.
If door ajar indicator is always illuminated, go to next step. If door ajar indicator is not always illuminated, go to step 4 .
Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, monitor door ajar switch status. If scan tool displays OPEN, replace instrument cluster. If scan tool does not display OPEN, repair interior lights as necessary. Perform appropriate test under «INTERIOR LIGHTING SYSTEMS»(ref-3597-S12867210972000051100000) .
Turn ignition off. Connect scan tool to Data Link Connector (DLC). Open all doors. Turn ignition on. Using scan tool, monitor door ajar switch status. If scan tool displays CLOSED, go to next step. If scan tool does not display CLOSED, repair interior lights as necessary. Perform appropriate test under «INTERIOR LIGHTING SYSTEMS»(ref-3597-S12867210972000051100000) .
If door ajar indicator is illuminated, problem is intermittent. If door ajar indicator is not illuminated, replace instrument cluster.

Engine Coolant Temperature Indicator Not Operating Properly

Start engine and let idle until normal operating temperature is achieved. If temperature gauge is operating properly, go to next step. If temperature gauge is not operating properly, repair temperature gauge as necessary. See «TEMPERATURE GAUGE NOT OPERATING PROPERLY»(ref-3597-S32099225422000051100000) .
Turn ignition off. Turn ignition on and observe engine coolant temperature indicator. If engine coolant temperature indicator illuminates for 3-10 seconds, problem is intermittent. If engine coolant temperature indicator does not illuminate for 3-10 seconds, replace instrument cluster.

Fuel Gauge Not Operating Properly

Note. Ensure fuel tank is not empty before proceeding with this test.

Turn ignition off. Press and hold trip button on instrument cluster while turning ignition on. If fuel gauge sweeps from empty to full then back to empty, go to next step. If fuel gauge does not sweep from empty to full then back to empty, replace instrument cluster.
Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, retrieve Body Control Module (BCM) DTCs. If no DTCs exist, go to next step. If any DTCs exist, perform appropriate test. See «DIAGNOSTIC TROUBLE CODE IDENTIFICATION»(ref-3597-S09284152172000051100000) table under SELF-DIAGNOSTIC SYSTEM.
Turn ignition on. If fuel gauge always shows empty, go to next step. If fuel gauge is always between full and empty, go to step 6. If fuel gauge always shows full, go to step 7.
Turn ignition off. Remove rear seat and disconnect left body harness connector C308. Turn ignition on. Using a fused jumper wire, ground terminal No. 2 (Dark Blue wire) at left body harness connector C308. (Scheme 27) If fuel gauge now reads full, go to next step. If fuel gauge does not now read full, replace instrument cluster.
Check wiring between left body harness connector C308 and fuel pump module. If problem exists, repair wiring as necessary. If problem does not exist, replace fuel pump module.
Turn ignition off. Disconnect BCM harness connector C4. Measure resistance between ground and terminal No. 7 (Dark Blue wire) at BCM harness connector C4 with appropriate amount of fuel in fuel tank. See «FUEL LEVEL SENSOR RESISTANCE»(ref-3597-S41537640502000051100000) table. (Scheme 7) If resistance is not as specified, replace fuel pump module. If resistance is as specified, replace instrument cluster.
Turn ignition off. Remove rear seat and disconnect left body harness connector C308. Turn ignition on. Using scan tool, check fuel level voltage. If greater than 9 volts is displayed, go to next step. If 9 volts or less is displayed, go to step 10.
Ensure left body harness connector C308 is still disconnected and ignition is on. If fuel gauge now reads empty, go to next step. If fuel gauge still reads full, replace instrument cluster.
Check wiring between left body harness connector C308 and fuel pump module. If problem exists, repair wiring as necessary. If problem does not exist, replace fuel pump module.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C4. Measure resistance between ground and terminal No. 7 (Dark Blue wire) at BCM harness connector C4. (Scheme 7) If resistance is greater than 5 ohms, replace BCM. If resistance is 5 ohms or less, repair short to ground in Dark Blue wire between fuel pump module and BCM.

Fuel Level	Ohms
Sensor Full Stop	50-70
Gauge Full Stop	115-145
3/4	310-370
1/2	520-580
1/4	730-790
Gauge Empty Stop	890-950
Sensor Empty Stop	1040-1060

FUEL LEVEL SENSOR RESISTANCE

Low Fuel Indicator Not Operating Properly

Start engine and observe fuel gauge operation. If fuel gauge operates properly, go to next step. If fuel gauge does not operate properly, repair fuel gauge as necessary. See «FUEL GAUGE NOT OPERATING PROPERLY»(ref-3597-S02321441122000051100000) .
Turn ignition off. Turn ignition on and observe low fuel indicator. If low fuel indicator illuminates for 3-10 seconds, problem is intermittent. If low fuel indicator does not illuminate for 3-10 seconds, replace instrument cluster.

Odometer Not Operating Properly

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Mechanical Instrument Cluster (MIC). If communication was established, go to next step. If communication was not established, repair communication concern. See «MIC MESSAGE NOT RECEIVED»(ref-3597-S22452487512000051100000) under COMMUNICATIONS.
Using scan tool, attempt to communicate with Transmission Control Module (TCM). If communication was established, go to next step. If communication was not established, repair communication concern. See «NO RESPONSE FROM TRANSMISSION CONTROL MODULE (TCM)»(ref-3597-S33869684662000051100000) under COMMUNICATIONS.
Turn ignition off. Turn ignition on while observing odometer segments. If all odometer segments illuminate, problem is intermittent. If all odometer segments do not illuminate, replace instrument cluster.

Oil Pressure Warning Indicator Not Operating Properly

Note. Before proceeding with this test, ensure oil level is correct.

Turn ignition on. Observe oil level indicator. If oil level indicator illuminates, go to next step. If oil level indicator does not illuminate, go to step 5.
Turn ignition off. Disconnect oil pressure switch harness connector. Turn ignition on. If oil level indicator does not illuminate, go to next step. If oil level indicator illuminates, go to step 4.
Turn ignition off. Remove oil pressure switch. Install mechanical oil pressure gauge. Start engine and let idle. Ensure oil pressure is greater than 4 psi (.3 bar). If oil pressure is as specified, replace oil pressure switch. If oil pressure is not as specified, repair engine oiling system as necessary. See appropriate article in ENGINES.
Turn ignition off. Disconnect oil pressure switch harness connector. Disconnect instrument cluster harness connector C1. Measure resistance between ground and terminal No. 5 (Gray wire) at instrument cluster harness connector C1. (Scheme 11) If resistance is greater than 5 ohms, replace instrument cluster. If resistance is 5 ohms or less, repair short to ground in Gray wire between oil pressure switch and instrument cluster.
Turn ignition off. Disconnect oil pressure switch harness connector. Using a fused jumper wire, ground Gray wire terminal at oil pressure switch harness connector. Turn ignition on. If oil level indicator does not illuminate, go to next step. If oil level indicator illuminates, replace oil pressure switch.
Turn ignition off. Disconnect instrument cluster harness connector C1. Measure resistance in Gray wire between oil pressure switch harness connector and terminal No. 5 at instrument cluster harness connector C1. (Scheme 11) If resistance is 5 ohms or less, replace instrument cluster. If resistance is greater than 5 ohms, repair open in Gray wire between oil pressure switch and instrument cluster.

PRND3L Indicator Malfunctions

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Mechanical Instrument Cluster (MIC). If communication was established, go to next step. If communication was not established, repair communication concern. See «MIC MESSAGE NOT RECEIVED»(ref-3597-S22452487512000051100000) under COMMUNICATIONS.
Turn ignition off. Turn ignition on while observing PRND3L display. If all indicators illuminate, go to next step. If any indicators do not illuminate, replace instrument cluster.
Using scan tool, access Transmission Control Module (TCM) and monitor shift lever status. Engage parking brake. Shift gear selector thought all gears. If scan tool display agrees with gear selected, replace instrument cluster. If scan tool display does not agree with gear selected, repair transmission range sensor input to TCM. See appropriate ELECTRONIC CONTROLS article in TRANSMISSIONS.

Seat Belt Indicator Not Operating Properly

Turn ignition on. If seat belt indicator illuminates, go to next step. If seat belt indicator does not illuminate, replace instrument cluster.
Turn ignition off. Buckle driver's seat belt. Turn ignition on. If seat belt indicator goes out, go to next step. If seat belt indicator does not go out, go to step 8.
Unbuckle driver's seat belt. If seat belt indicator does not illuminate, go to next step. If seat belt indicator illuminates, problem is intermittent.
Turn ignition off. Ensure driver's seat belt is unbuckle. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, check seat belt switch status. If CLOSED is not displayed, go to next step. If CLOSED is displayed, replace instrument cluster.
Turn ignition off. Disconnect seat belt switch harness connector. Measure resistance between ground and terminal No.2 (Black wire) at seat belt switch harness connector. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between seat belt switch and ground.
Using a fused jumper wire, connect terminals No. 1 (Light Green/Red wire) and No. 2 (Black wire) at seat belt switch harness connector. Turn ignition on. Using scan tool, check seat belt switch status. If CLOSED is not displayed, go to next step. If CLOSED is displayed, replace seat belt switch.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C4. Measure resistance in Light Green/Red wire between terminal No. 1 at seat belt switch harness connector and terminal No. 15 at BCM harness connector C4. (Scheme 7) If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Light Green/Red wire between seat belt switch and BCM.
Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Buckle driver's seat belt. Using scan tool, check seat belt switch status. If OPEN is not displayed, go to next step. If OPEN is displayed, replace instrument cluster.
Disconnect seat belt switch harness connector. Using scan tool, check seat belt switch status. If OPEN is not displayed, go to next step. If OPEN is displayed, replace seat belt switch.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C4. Measure resistance between ground and terminal No. 15 (Light Green/Red wire) at BCM harness connector C4. (Scheme 7) If resistance is greater than 5 ohms, replace BCM. If resistance is 5 ohms or less, repair short to ground in Light Green/Red wire between seat belt switch and BCM.

Speedometer Gauge Not Operating Properly

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Powertrain Control Module (PCM). If communication was established, go to next step. If communication was not established, repair communication concern. See «NO RESPONSE FROM POWERTRAIN CONTROL MODULE (PCI BUS)»(ref-3597-S05035483622000051100000) under COMMUNICATIONS.
Turn ignition off. Press and hold trip button on instrument cluster while turning ignition on. If speedometer sweeps from zero MPH to 120 MPH then back to zero MPH, go to next step. If speedometer does not sweep from zero MPH to 120 MPH then back to zero MPH, replace instrument cluster.
Using scan tool, retrieve PCM DTCs. If no DTCs exist, go to next step. If any DTCs exist, repair powertrain concern as necessary. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
Raise and support vehicle. Start vehicle. Turn traction control off (if equipped). Using scan tool, monitor vehicle speed signal to PCM. Accelerate vehicle. If vehicle speed increases on display, go to next step. If vehicle speed does not increase on display, repair vehicle speed signal as necessary.
Using scan tool, monitor vehicle speed signal to instrument cluster. Accelerate vehicle. If vehicle speed increases on display, replace instrument cluster. If vehicle speed does not increase on display, replace PCM.

Tachometer Not Operating Properly

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Powertrain Control Module (PCM). If communication was established, go to next step. If communication was not established, repair communication concern. See «NO RESPONSE FROM POWERTRAIN CONTROL MODULE (PCI BUS)»(ref-3597-S05035483622000051100000) under COMMUNICATIONS.
Turn ignition off. Press and hold trip button on instrument cluster while turning ignition on. If tachometer sweeps from zero RPM to 6000 RPM then back to zero RPM, go to next step. If tachometer does not sweep from zero RPM to 6000 RPM then back to zero RPM, replace instrument cluster.
Using scan tool, retrieve PCM DTCs. If no DTCs exist, go to next step. If any DTCs exist, repair powertrain concern as necessary. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
Start vehicle. Using scan tool, monitor engine RPM signal to PCM. If greater than 400 RPM is displayed, go to next step. If 400 RPM or less is displayed, replace PCM.
Using scan tool, monitor RPM signal to instrument cluster. If greater than 400 RPM is displayed, replace instrument cluster. If 400 RPM or less is displayed, replace PCM.

Temperature Gauge Not Operating Properly

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Powertrain Control Module (PCM). If communication was established, go to next step. If communication was not established, repair communication concern. See «NO RESPONSE FROM POWERTRAIN CONTROL MODULE (PCI BUS)»(ref-3597-S05035483622000051100000) under COMMUNICATIONS.
Turn ignition off. Press and hold trip button on instrument cluster while turning ignition on. If temperature gauge sweeps from "C" to "H" then back to "C", go to next step. If temperature gauge does not sweep from "C" to "H" then back to "C", replace instrument cluster.
Using scan tool, retrieve PCM DTCs. If no DTCs exist, go to next step. If any DTCs exist, repair powertrain concern as necessary. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
Start vehicle. Using scan tool, monitor engine temperature signal to PCM. If approximately the correct engine temperature is displayed, go to next step. If approximately the correct engine temperature is not displayed, replace PCM.
Using scan tool, monitor engine temperature signal to instrument cluster. If approximately the correct engine temperature is displayed, replace instrument cluster. If approximately the correct engine temperature is not displayed, replace PCM.

Traction Off Indicator Not Operating Properly

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Controller Anti-Lock Brake (CAB) module. If communication was established, go to next step. If communication was not established, repair communication concern. See «NO RESPONSE FROM CAB»(ref-3597-S31764683232000051100000) under COMMUNICATIONS.
Using scan tool, retrieve CAB DTCs. If no DTCs exist, go to next step. If any DTCs exist, repair anti-lock brake system as necessary. See appropriate ANTI-LOCK article in BRAKES.
Turn ignition off. Turn ignition on. If traction off indicator illuminates for 3-10 seconds, go to next step. If traction off indicator does not illuminate for 3-10 seconds, replace instrument cluster.
Turn ignition off. Turn ignition on. Turn traction control off. Wait 10 seconds. If traction off indicator is not illuminated, go to next step. If traction off indicator is illuminated, replace instrument cluster.
Turn ignition off. Turn ignition on. Wait 10 seconds. Turn traction control on and off while observing traction off indicator. If traction off indicator does not operate properly, go to next step. If traction off indicator operates properly, problem is intermittent.
Turn ignition off. Disconnect traction control switch harness connector. Measure resistance between ground and terminal No. 2 (Black/Light Green wire) at traction control switch harness connector. (Scheme 28) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black/Light Green wire between traction control switch and ground.
Turn ignition on. Using a fused jumper wire, connect and disconnect terminals No. 2 (Black/Light Green wire) and No. 3 (Red/Yellow wire) at traction control switch harness connector while observing traction off indicator. If traction off indicator does not turn on and off, go to next step. If traction off indicator turns on and off, replace traction control switch.
Turn ignition off. Disconnect instrument cluster harness connector C2. Measure resistance in Red/Yellow wire between terminal No. 3 at traction control switch harness connector and terminal No. 8 at instrument cluster harness connector C2. (Scheme 11)and (Scheme 28). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Red/Yellow wire between traction control switch and instrument cluster.
Measure resistance between ground and terminal No. 8 (Red/Yellow wire) at instrument cluster harness connector C2. If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, repair short to ground in Red/Yellow wire between traction control switch and instrument cluster.
Turn ignition on. Measure voltage at terminal No. 8 (Red/Yellow wire) at instrument cluster harness connector C2. If voltage is one volt or less, replace instrument cluster. If voltage is greater than one volt, repair short to voltage in Red/Yellow wire between traction control switch and instrument cluster.

Scheme 28

Traction On Indicator Not Operating Properly

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Controller Anti-Lock Brake (CAB) module. If communication was established, go to next step. If communication was not established, repair communication concern. See «NO RESPONSE FROM CAB»(ref-3597-S31764683232000051100000) under COMMUNICATIONS.
Using scan tool, retrieve CAB DTCs. If no DTCs exist, go to next step. If any DTCs exist, repair anti-lock brake system as necessary. See appropriate ANTI-LOCK article in BRAKES.
Turn ignition off. Turn ignition on. If traction on indicator illuminates for 3-10 seconds, go to next step. If traction on indicator does not illuminate for 3-10 seconds, go to step 6 .
Turn ignition off. Turn ignition on. Turn traction control on and off. Wait 10 seconds. If traction on indicator is never illuminated, go to next step. If traction on indicator is always illuminated, replace instrument cluster.
Drive vehicle to safe slippery area. From a stop, accelerate hard. If traction control is operating, replace instrument cluster. If traction control is not operating, repair traction control system as necessary or replace CAB module as necessary. See appropriate ANTI-LOCK article in BRAKES.
Check traction on indicator bulb. If bulb is okay, replace instrument cluster. If bulb is defective, replace bulb.

INTERIOR LIGHTING SYSTEMS

CAUTION

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Note. For interior lighting systems wiring diagrams, see ILLUMINATION/INTERIOR LIGHTS article.

Courtesy Light Output Short To Battery

Turn ignition off. Disconnect junction block harness connector C11. (Scheme 14) Close all doors. Turn ignition on. If all courtesy lights illuminate except overhead console lights, go to next step. If all courtesy lights do not illuminate and overhead console lights illuminates, go to step 3.
Turn ignition off. Connect junction block harness connector C11. Turn on all overhead console lights with each individual switch. If all lights illuminate using individual switch, repair short to voltage in Yellow wire between junction block and overhead console. If any lights do not illuminate using individual switch, repair short to voltage in appropriate ground circuit.
Turn ignition off. Remove all courtesy light bulbs. Disconnect Body Control Module (BCM) from back of junction block. Turn ignition on. Measure voltage at terminal No. 2 at BCM connection on back of junction block. (Scheme 9) If voltage exists, repair short to voltage in junction block or Yellow wire between junction block and courtesy lights. If voltage does not exist, replace BCM.

Courtesy Lights Inoperative With Door Open (All Lights)

Using a voltmeter, backprobe terminal No. 6 (Pink wire) at junction block harness connector C11. (Scheme 14) If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Using a fused jumper wire connected to ground, backprobe terminal No. 4 (Yellow wire) at junction block harness connector C11. If courtesy lights illuminate, replace Body Control Module (BCM). If courtesy lights do not illuminate, repair open in Yellow wire between junction block and courtesy lights.

Courtesy Lights Inoperative With Door Open (Door Lights Only)

Turn ignition off. Disconnect driver's door light harness connector. Measure voltage at terminal No. 2 (Pink wire) at driver's door light harness connector. If battery voltage exists, go to next step. If battery voltage does not exist, repair open in Pink wire between junction block and courtesy lights.
Connect driver's door light harness connector. Disconnect junction block harness connector C6. (Scheme 9) Using a fused jumper wire, ground terminal No. 8 (Yellow wire) at junction block harness connector C6. If door courtesy lights illuminate, replace junction block. If door courtesy lights do not illuminate, repair open in Yellow wire between junction block and courtesy door lights.

Courtesy Lights Inoperative With Door Open (Overhead Console Lights Only)

Using a voltmeter, backprobe terminal No. 6 (Pink wire) at junction block harness connector C11. (Scheme 14) If battery voltage exists, go to next step. If battery voltage does not exist, replace junction block.
Using a fused jumper wire connected to ground, backprobe terminal No. 4 (Yellow wire) at junction block harness connector C11. If overhead console lights illuminate, replace junction block. If overhead console lights do not illuminate, repair open in Yellow wire between junction block and overhead console.

Courtesy Lights Inoperative From Headlight Switch

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Using scan tool, check courtesy light status. Turn courtesy lights on using headlight switch. If ON is not displayed, go to next step. If ON is displayed, replace BCM.
Check White wire between terminal No. 19 at Body Control Module (BCM) harness connector C2 and terminal No. 6 at headlight switch harness connector for opens and shorts. If problem exists, repair wiring as necessary. If problem does not exist, replace headlight switch.

Courtesy Lights Inoperative With Driver's Door Open

Turn ignition off. Disconnect driver's door lock motor/ajar switch harness connector. Measure resistance between ground and terminal No. 2 (Black wire) at driver's door lock motor/ajar switch harness connector. (Scheme 29) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between driver's door lock motor/ajar switch and ground.
Disconnect Body Control Module (BCM) harness connector C4. Measure resistance in Tan wire between terminal No. 1 at driver's door lock motor/ajar switch harness connector and terminal No. 4 at BCM harness connector C4. (Scheme 7)and (Scheme 29). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Tan wire between driver's door lock motor/ajar switch and BCM.
Connect driver's door lock motor/ajar switch harness connector. Open driver's door. Measure resistance between ground and terminal No. 4 (Tan wire) at BCM harness connector C4. If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, replace driver's door lock motor/ajar switch.

Scheme 29

Courtesy Lights Inoperative With Left Rear Door Open

Turn ignition off. Disconnect left rear door lock motor/ajar switch harness connector. Measure resistance between ground and terminal No. 2 (Black wire) at left rear door lock motor/ajar switch harness connector. (Scheme 29) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between left rear door lock motor/ajar switch and ground.
Disconnect Body Control Module (BCM) harness connector C4. Measure resistance in Tan/Red wire between terminal No. 1 at left rear door lock motor/ajar switch harness connector and terminal No. 2 at BCM harness connector C4. (Scheme 7)and (Scheme 29). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Tan/Red wire between left rear door lock motor/ajar switch and BCM.
Connect left rear door lock motor/ajar switch harness connector. Open left rear door. Measure resistance between ground and terminal No. 2 (Tan/Red wire) at BCM harness connector C4. If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, replace left rear door lock motor/ajar switch.

Courtesy Lights Inoperative With Passenger's Door Open

Turn ignition off. Disconnect passenger's door lock motor/ajar switch harness connector. Measure resistance between ground and terminal No. 2 (Black wire) at passenger's door lock motor/ajar switch harness connector. (Scheme 29) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between passenger's door lock motor/ajar switch and ground.
Disconnect Body Control Module (BCM) harness connector C4. Measure resistance in Tan/Red wire between terminal No. 1 at passenger's door lock motor/ajar switch harness connector and terminal No. 1 at BCM harness connector C4. (Scheme 7)and (Scheme 29). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Tan/Red wire between passenger's door lock motor/ajar switch and BCM.
Connect passenger's door lock motor/ajar switch harness connector. Open passenger's door. Measure resistance between ground and terminal No. 1 (Tan/Red wire) at BCM harness connector C4. If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, replace passenger's door lock motor/ajar switch.

Courtesy Lights Inoperative With Right Rear Door Open

Turn ignition off. Disconnect right rear door lock motor/ajar switch harness connector. Measure resistance between ground and terminal No. 2 (Black wire) at right rear door lock motor/ajar switch harness connector. (Scheme 29) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between right rear door lock motor/ajar switch and ground.
Disconnect Body Control Module (BCM) harness connector C4. Measure resistance in Tan/Red wire between terminal No. 1 at right rear door lock motor/ajar switch harness connector and terminal No. 10 at BCM harness connector C4. (Scheme 7)and (Scheme 29). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Tan/Red wire between right rear door lock motor/ajar switch and BCM.
Connect right rear door lock motor/ajar switch harness connector. Open right rear door. Measure resistance between ground and terminal No. 10 (Tan/Red wire) at BCM harness connector C4. If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, replace right rear door lock motor/ajar switch.

Courtesy Lights Stay On At All Times

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition off. Close all doors. Using scan tool, check driver's door ajar switch status. If OPEN is displayed, go to next step. If OPEN is not displayed, go to step 7.
Using scan tool, check door ajar switch status. If OPEN is displayed, go to next step. If OPEN is not displayed, go to step 5.
Ensure courtesy light switches are off. Disconnect junction block harness connector C11. (Scheme 14) Close all doors. If door courtesy lights do not go out, go to next step. If door courtesy lights go out, repair short to ground in Yellow wire between junction block and overhead console.
Disconnect Body Control Module (BCM) from back of junction block. If courtesy lights do not go out, repair short to ground in Yellow wire between junction block and courtesy lights. If courtesy lights go out, replace BCM.
Using scan tool, check door ajar switch status while disconnecting each door lock motor/ajar switch harness connector except driver's door. If scan tool display did not change when all harness connectors were disconnected, go to next step. If scan tool display changed when a harness connector was disconnected, replace appropriate door lock motor/ajar switch.
Disconnect Body Control Module (BCM) harness connector C4. Measure resistance between ground and terminals No. 1, 2 and 10 (all Tan/Red wire) at BCM harness connector C4. (Scheme 7) If all resistances are greater than 1000 ohms, replace BCM. If any resistance is 1000 ohms or less, repair short to ground in Tan/Red wire between BCM and appropriate door lock motor/ajar switch.
Turn ignition off. Disconnect driver's door lock motor/ajar switch harness connector. Disconnect Body Control Module (BCM) harness connector C4. Measure resistance between ground and terminal No. 4 (Tan wire) at BCM harness connector C4. (Scheme 7) If resistance is greater than 1000 ohms, go to next step. If resistance is 1000 ohms or less, repair short to ground in Tan wire between BCM and driver's door lock motor/ajar switch.
Connect driver's door lock motor/ajar switch harness connector. Close driver's door. Measure resistance between ground and terminal No. 4 (Tan wire) at BCM harness connector C4. If resistance is greater than 5 ohms, replace BCM. If resistance is 5 ohms or less, replace driver's door lock motor/ajar switch.

MEMORY SYSTEMS

CAUTION

Note. After making any repairs, perform MEMORY SYSTEM VERIFICATION TEST under VERIFICATION TESTS.

Note. For memory systems wiring diagrams, see WIRING DIAGRAMS in HEATED SEATS & MEMORY SYSTEMS - LHS & 300M article.

Driver Mirror Horizontal Sensor Out Of Range High

Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Turn ignition on. Measure voltage at terminal No. 20 (Dark Blue/Yellow wire) at MHSMM harness connector C1. (Scheme 10) If voltage is greater than 4.5 volts, go to next step. If voltage is 4.5 volts or less, replace MHSMM.
Disconnect driver's mirror harness connector. Measure voltage at terminal No. 9 (Dark Blue/Yellow wire) at driver's mirror harness connector. (Scheme 30) If any voltage exists, repair short to voltage in Dark Blue/Yellow wire between MHSMM and driver's mirror. If no voltage exists, replace driver's mirror.

Scheme 30

Driver Mirror Horizontal Sensor Out Of Range Low

Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure resistance between ground and terminal No. 20 (Dark Blue/Yellow wire) at MHSMM harness connector C1. (Scheme 10) If resistance is.7 ohm or less, go to next step. If resistance is greater than.7 ohm, replace MHSMM.
Disconnect driver's mirror harness connector. Measure resistance between ground and terminal No. 9 (Dark Blue/Yellow wire) at driver's mirror harness connector. (Scheme 30) If resistance is greater than 1000 ohms, replace driver's mirror. If resistance is 1000 ohms or less, repair short to ground in Dark Blue/Yellow wire between MHSMM and driver's mirror.

Driver Mirror Vertical Sensor Out Of Range High

Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Turn ignition on. Measure voltage at terminal No. 7 (Yellow/Orange wire) at MHSMM harness connector C1. (Scheme 10) If voltage is greater than 4.5 volts, go to next step. If voltage is 4.5 volts or less, replace MHSMM.
Disconnect driver's mirror harness connector. Measure voltage at terminal No. 7 (Yellow/Orange wire) at driver's mirror harness connector. (Scheme 30) If no voltage exists, replace driver's mirror. If any voltage exists, repair short to voltage in Yellow/Orange wire between MHSMM and driver's mirror.

Driver Mirror Vertical Sensor Out Of Range Low

Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure resistance between ground and terminal No. 7 (Yellow/Orange wire) at MHSMM harness connector C1. (Scheme 10) If resistance is.7 ohm or less, go to next step. If resistance is greater than.7 ohm, replace MHSMM.
Disconnect driver's mirror harness connector. Measure resistance between ground and terminal No. 7 (Yellow/Orange wire) at driver's mirror harness connector. (Scheme 30) If resistance is greater than 1000 ohms, replace driver's mirror. If resistance is 1000 ohms or less, repair short to ground in Yellow/Orange wire between MHSMM and driver's mirror.

Front Riser Down Position Stuck

Disconnect power seat switch harness connector. Turn ignition on. Measure voltage at terminal No. 6 (Red/Light Green wire) at power seat switch harness connector. (Scheme 31) If any voltage exists, go to next step. If no voltage exists, replace power seat switch.
Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure voltage at terminal No. 8 (Red/Light Green wire) at MHSMM harness connector C1. (Scheme 10) If no voltage exists, replace MHSMM. If any voltage exists, repair short to voltage in Red/Light Green wire between power seat switch and MHSMM.

Scheme 31

Front Riser Sensor Out Of Range High

Turn ignition off. Disconnect driver's seat front riser motor sensor harness connector. Measure resistance between ground and terminal "A" (Brown/Red wire) at driver's seat front riser motor sensor harness connector. If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, go to step 3.
Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C2. Measure resistance in Brown/Red wire between terminal "A" at driver's seat front riser motor sensor harness connector and terminal No. 16 at MHSMM harness connector C2. (Scheme 10) If resistance is 5 ohms or less, replace MHSMM. If resistance is greater than 5 ohms, repair open in Brown/Red wire between driver's seat front riser motor sensor and MHSMM.
Connect driver's seat front riser motor sensor harness connector. Ensure all other seat motor sensor harness connectors are connected. Ensure front riser motor is operational. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, monitor front riser position sensor voltage while operating front riser motor to both limits. If voltage display is never greater than 8 volts while motor is operating, go to next step. If voltage display is greater than 8 volts while motor is operating, replace seat track assembly.
Turn ignition off. Disconnect driver's seat front riser motor sensor harness connector. Turn ignition on. Measure voltage at terminal "C" (Brown/White wire) at driver's seat front riser motor sensor harness connector. If voltage is 5.5 volts or less, go to next step. If voltage is greater than 5.5 volts, repair short to voltage in Brown/White wire between Memory Heated Seat/Mirror Module (MHSMM) and driver's seat front riser motor sensor.
Turn ignition off. Disconnect MHSMM harness connector C1. Turn ignition on. Measure voltage at terminal No. 15 (Brown wire) at MHSMM harness connector C1. (Scheme 10) If voltage is.2 volt or less, go to next step. If voltage is greater than.2 volt, repair short to voltage in Brown wire between MHSMM and driver's seat front riser motor sensor.
Turn ignition off. Connect MHSMM harness connector C1. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, monitor front riser position sensor voltage. If greater than.2 volt is displayed, replace MHSMM. If.2 volt or less is displayed, replace seat track assembly.

Front Riser Sensor Out Of Range Low

Turn ignition off. Disconnect driver's seat front riser motor sensor harness connector. Turn ignition on. Measure voltage at terminal "C" (Brown/White wire) at driver's seat front riser motor sensor harness connector. If voltage is 4.5 volts or less, go to next step. If voltage is greater than 4.5 volts, go to step 4.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C2. Measure resistance in Brown/White wire between terminal "C" at driver's seat front riser motor sensor harness connector and terminal No. 6 at MHSMM harness connector C2. (Scheme 10) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Brown/White wire between driver's seat front riser motor sensor and MHSMM.
Measure resistance between ground and terminal No. 6 (Brown/White wire) at MHSMM harness connector C2. If resistance is greater than 100 ohms, replace MHSMM. If resistance is 100 ohms or less, repair short to ground in Brown/White wire between driver's seat front riser motor sensor and MHSMM.
Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, monitor front riser position sensor voltage. Using a fused jumper wire, connect terminals "C" (Brown/White wire) and "B" (Brown wire) at driver's seat front riser motor sensor harness connector. If 4.5 volts or less is displayed, go to next step. If greater than 4.5 volts is displayed, replace seat track assembly.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure resistance between ground and terminal No. 15 (Brown wire) at MHSMM harness connector C1. (Scheme 10) If resistance is greater than 1000 ohms, go to next step. If resistance is 1000 ohms or less, repair short to ground in Brown wire between driver's seat front riser motor sensor and MHSMM.
Measure resistance in Brown wire between terminal "B" at driver's seat front riser motor sensor harness connector and terminal No. 15 at MHSMM harness connector C1. If resistance is 5 ohms or less, replace MHSMM. If resistance is greater than 5 ohms, repair open in Brown wire between driver's seat front riser motor sensor and MHSMM.

Front Riser Up Position Stuck

Disconnect power seat switch harness connector. Turn ignition on. Measure voltage at terminal No. 9 (Yellow/Light Green wire) at power seat switch harness connector. (Scheme 31) If any voltage exists, go to next step. If no voltage exists, replace power seat switch.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure voltage at terminal No. 21 (Yellow/Light Green wire) at MHSMM harness connector C1. (Scheme 10) If no voltage exists, replace MHSMM. If any voltage exists, repair short to voltage in Yellow/Light Green wire between power seat switch and MHSMM.

Horizontal Forward Position Stuck

Disconnect power seat switch harness connector. Turn ignition on. Measure voltage at terminal No. 10 (Yellow/Light Blue wire) at power seat switch harness connector. (Scheme 31) If any voltage exists, go to next step. If no voltage exists, replace power seat switch.
Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure voltage at terminal No. 10 (Yellow/Light Blue wire) at MHSMM harness connector C1. (Scheme 10) If no voltage exists, replace MHSMM. If any voltage exists, repair short to voltage in Yellow/Light Blue wire between power seat switch and MHSMM.

Horizontal Rearward Position Stuck

Disconnect power seat switch harness connector. Turn ignition on. Measure voltage at terminal No. 3 (Red/Light Blue wire) at power seat switch harness connector. (Scheme 31) If any voltage exists, go to next step. If no voltage exists, replace power seat switch.
Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure voltage at terminal No. 23 (Red/Light Blue wire) at MHSMM harness connector C1. (Scheme 10) If no voltage exists, replace MHSMM. If any voltage exists, repair short to voltage in Red/Light Blue wire between power seat switch and MHSMM.

Horizontal Sensor Out Of Range High

Turn ignition off. Disconnect driver's seat horizontal motor sensor harness connector. Measure resistance between ground and terminal "A" (Brown/Red wire) at driver's seat horizontal motor sensor harness connector. If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, go to step 3.
Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C2. Measure resistance in Brown/Red wire between terminal "A" at driver's seat horizontal motor sensor harness connector and terminal No. 16 at MHSMM harness connector C2. (Scheme 10) If resistance is 5 ohms or less, replace MHSMM. If resistance is greater than 5 ohms, repair open in Brown/Red wire between driver's seat front riser motor sensor and MHSMM.
Connect driver's seat horizontal motor sensor harness connector. Ensure all other seat motor sensor harness connectors are connected. Ensure horizontal motor is operational. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, monitor horizontal position sensor voltage while operating horizontal motor to both limits. If voltage display is never greater than 8 volts while motor is operating, go to next step. If voltage display is greater than 8 volts while motor is operating, replace seat track assembly.
Turn ignition off. Disconnect driver's seat horizontal motor sensor harness connector. Turn ignition on. Measure voltage at terminal "C" (Brown/White wire) at driver's seat horizontal motor sensor harness connector. If voltage is 5.5 volts or less, go to next step. If voltage is greater than 5.5 volts, repair short to voltage in Brown/White wire between Memory Heated Seat/Mirror Module (MHSMM) and driver's seat horizontal motor sensor.
Turn ignition off. Disconnect MHSMM harness connector C1. Turn ignition on. Measure voltage at terminal No. 2 (Violet/Red wire) at MHSMM harness connector C1. (Scheme 10) If voltage is.2 volt or less, go to next step. If voltage is greater than.2 volt, repair short to voltage in Violet/Red wire between MHSMM and driver's seat horizontal motor sensor.
Turn ignition off. Connect MHSMM harness connector C1. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, monitor horizontal position sensor voltage. If greater than.2 volt is displayed, replace MHSMM. If.2 volt or less is displayed, replace seat track assembly.

Horizontal Sensor Out Of Range Low

Turn ignition off. Disconnect driver's seat horizontal motor sensor harness connector. Turn ignition on. Measure voltage at terminal "C" (Brown/White wire) at driver's seat horizontal motor sensor harness connector. If voltage is 4.5 volts or less, go to next step. If voltage is greater than 4.5 volts, go to step 4.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C2. Measure resistance in Brown/White wire between terminal "C" at driver's seat horizontal motor sensor harness connector and terminal No. 6 at MHSMM harness connector C2. (Scheme 10) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Brown/White wire between driver's seat horizontal motor sensor and MHSMM.
Measure resistance between ground and terminal No. 6 (Brown/White wire) at MHSMM harness connector C2. If resistance is greater than 100 ohms, replace MHSMM. If resistance is 100 ohms or less, repair short to ground in Brown/White wire between driver's seat horizontal motor sensor and MHSMM.
Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, monitor horizontal position sensor voltage. Using a fused jumper wire, connect terminals "C" (Brown/White wire) and "B" (Violet/Red wire) at driver's seat horizontal motor sensor harness connector. If 4.5 volts or less is displayed, go to next step. If greater than 4.5 volts is displayed, replace seat track assembly.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure resistance between ground and terminal No. 2 (Violet/Red wire) at MHSMM harness connector C1. (Scheme 10) If resistance is greater than 1000 ohms, go to next step. If resistance is 1000 ohms or less, repair short to ground in Violet/Red wire between driver's seat horizontal motor sensor and MHSMM.
Measure resistance in Violet/Red wire between terminal "B" at driver's seat horizontal motor sensor harness connector and terminal No. 2 at MHSMM harness connector C1. If resistance is 5 ohms or less, replace MHSMM. If resistance is greater than 5 ohms, repair open in Violet/Red wire between driver's seat horizontal motor sensor and MHSMM.

Memory Position No. 1 Stuck

Turn ignition off. Disconnect memory set switch harness connector. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, check memory position one status. If OPEN is not displayed, go to next step. If OPEN is displayed, replace memory set switch.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure resistance between ground and terminal No. 6 (Pink/Red wire) at memory set switch harness connector. (Scheme 32) If resistance is greater than 1000 ohms, replace MHSMM. If resistance is 1000 ohms or less, repair short to ground in Pink/Red wire between memory set switch and MHSMM.

Scheme 32

Memory Position No. 2 Stuck

Turn ignition off. Disconnect memory set switch harness connector. Connect scan tool to Data Link Connector (DLC). Using scan tool, check memory position 2 status. If OPEN is not displayed, go to next step. If OPEN is displayed, replace memory set switch.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure resistance between ground and terminal No. 4 (Pink/White wire) at memory set switch harness connector. (Scheme 32) If resistance is greater than 1000 ohms, replace MHSMM. If resistance is 1000 ohms or less, repair short to ground in Pink/White wire between memory set switch and MHSMM.

Memory Set "S" Position Stuck

Turn ignition off. Disconnect memory set switch harness connector. Connect scan tool to Data Link Connector (DLC). Using scan tool, check memory set switch status. If OPEN is not displayed, go to next step. If OPEN is displayed, replace memory set switch.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure resistance between ground and terminal No. 5 (Pink/Black wire) at memory set switch harness connector. (Scheme 32) If resistance is greater than 1000 ohms, replace MHSMM. If resistance is 1000 ohms or less, repair short to ground in Pink/Black wire between memory set switch and MHSMM.

Passenger Mirror Horizontal Sensor Out Of Range High

Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Turn ignition on. Measure voltage at terminal No. 19 (Dark Green/Red wire) at MHSMM harness connector C1. (Scheme 10) If voltage is greater than 4.5 volts, go to next step. If voltage is 4.5 volts or less, replace MHSMM.
Disconnect passenger's mirror harness connector. Measure voltage at terminal No. 9 (Dark Green/Red wire) at passenger's mirror harness connector. (Scheme 30) If no voltage exists, replace passenger's mirror. If any voltage exists, repair short to voltage in Dark Green/Red wire between MHSMM and passenger's mirror.

Passenger Mirror Horizontal Sensor Out Of Range Low

Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure resistance between ground and terminal No. 19 (Dark Green/Red wire) at MHSMM harness connector C1. (Scheme 10) If resistance is.7 ohm or less, go to next step. If resistance is greater than.7 ohm, replace MHSMM.
Disconnect passenger's mirror harness connector. Measure resistance between ground and terminal No. 9 (Dark Green/Red wire) at passenger's mirror harness connector. (Scheme 30) If resistance is greater than 1000 ohms, replace passenger's mirror. If resistance is 1000 ohms or less, repair short to ground in Dark Green/Red wire between MHSMM and passenger's mirror.

Passenger Mirror Vertical Sensor Out Of Range High

Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Turn ignition on. Measure voltage at terminal No. 6 (Yellow/Red wire) at MHSMM harness connector C1. (Scheme 10) If voltage is greater than 4.5 volts, go to next step. If voltage is 4.5 volts or less, replace MHSMM.
Disconnect passenger's mirror harness connector. Measure voltage at terminal No. 7 (Yellow/Red wire) at passenger's mirror harness connector. (Scheme 30) If no voltage exists, replace passenger's mirror. If any voltage exists, repair short to voltage in Yellow/Red wire between MHSMM and passenger's mirror.

Passenger Mirror Vertical Sensor Out Of Range Low

Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure resistance between ground and terminal No. 7 (Yellow/Red wire) at MHSMM harness connector C1. (Scheme 10) If resistance is.7 ohm or less, go to next step. If resistance is greater than.7 ohm, replace MHSMM.
Disconnect passenger's mirror harness connector. Measure resistance between ground and terminal No. 7 (Yellow/Red wire) at passenger's mirror harness connector. (Scheme 30) If resistance is greater than 1000 ohms, replace passenger's mirror. If resistance is 1000 ohms or less, repair short to ground in Yellow/Red wire between MHSMM and passenger's mirror.

Rear Riser Down Position Stuck

Disconnect power seat switch harness connector. Turn ignition on. Measure voltage at terminal No. 7 (Red/White wire) at power seat switch harness connector. (Scheme 31) If any voltage exists, go to next step. If no voltage exists, replace power seat switch.
Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure voltage at terminal No. 9 (Red/White wire) at MHSMM harness connector C1. (Scheme 10) If no voltage exists, replace MHSMM. If any voltage exists, repair short to voltage in Red/White wire between power seat switch and MHSMM.

Rear Riser Sensor Out Of Range High

Turn ignition off. Disconnect driver's seat rear riser motor sensor harness connector. Measure resistance between ground and terminal "A" (Brown/Red wire) at driver's seat rear riser motor sensor harness connector. If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, go to step 3.
Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C2. Measure resistance in Brown/Red wire between terminal "A" at driver's seat rear riser motor sensor harness connector and terminal No. 16 at MHSMM harness connector C2. (Scheme 10) If resistance is 5 ohms or less, replace MHSMM. If resistance is greater than 5 ohms, repair open in Brown/Red wire between driver's seat rear riser motor sensor and MHSMM.
Connect driver's seat rear riser motor sensor harness connector. Ensure all other seat motor sensor harness connectors are connected. Ensure rear riser motor is operational. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, monitor rear riser position sensor voltage while operating rear riser motor to both limits. If voltage display is never greater than 8 volts while motor is operating, go to next step. If voltage display is greater than 8 volts while motor is operating, replace seat track assembly.
Turn ignition off. Disconnect driver's seat rear riser motor sensor harness connector. Turn ignition on. Measure voltage at terminal "C" (Brown/White wire) at driver's seat rear riser motor sensor harness connector. If voltage is 5.5 volts or less, go to next step. If voltage is greater than 5.5 volts, repair short to voltage in Brown/White wire between Memory Heated Seat/Mirror Module (MHSMM) and driver's seat rear riser motor sensor.
Turn ignition off. Disconnect MHSMM harness connector C1. Turn ignition on. Measure voltage at terminal No. 3 (Light Blue/Red wire) at MHSMM harness connector C1. (Scheme 10) If voltage is.2 volt or less, go to next step. If voltage is greater than.2 volt, repair short to voltage in Light Blue/Red wire between MHSMM and driver's seat rear riser motor sensor.
Turn ignition off. Connect MHSMM harness connector C1. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, monitor rear riser position sensor voltage. If greater than.2 volt is displayed, replace MHSMM. If.2 volt or less is displayed, replace seat track assembly.

Rear Riser Sensor Out Of Range Low

Turn ignition off. Disconnect driver's seat rear riser motor sensor harness connector. Turn ignition on. Measure voltage at terminal "C" (Brown/White wire) at driver's seat rear riser motor sensor harness connector. If voltage is 4.5 volts or less, go to next step. If voltage is greater than 4.5 volts, go to step 4.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C2. Measure resistance in Brown/White wire between terminal "C" at driver's seat rear riser motor sensor harness connector and terminal No. 6 at MHSMM harness connector C2. (Scheme 10) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Brown/White wire between driver's seat rear riser motor sensor and MHSMM.
Measure resistance between ground and terminal No. 6 (Brown/White wire) at MHSMM harness connector C2. If resistance is greater than 100 ohms, replace MHSMM. If resistance is 100 ohms or less, repair short to ground in Brown/White wire between driver's seat rear riser motor sensor and MHSMM.
Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, monitor rear riser position sensor voltage. Using a fused jumper wire, connect terminals "C" (Brown/White wire) and "B" (Light Blue/Red wire) at driver's seat rear riser motor sensor harness connector. If 4.5 volts or less is displayed, go to next step. If greater than 4.5 volts is displayed, replace seat track assembly.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure resistance between ground and terminal No. 3 (Light Blue/Red wire) at MHSMM harness connector C1. (Scheme 10) If resistance is greater than 1000 ohms, go to next step. If resistance is 1000 ohms or less, repair short to ground in Light Blue/Red wire between driver's seat rear riser motor sensor and MHSMM.
Measure resistance in Light Blue/Red wire between terminal "B" at driver's seat rear riser motor sensor harness connector and terminal No. 3 at MHSMM harness connector C1. If resistance is 5 ohms or less, replace MHSMM. If resistance is greater than 5 ohms, repair open in Light Blue/Red wire between driver's seat rear riser motor sensor and MHSMM.

Rear Riser Up Position Stuck

Disconnect power seat switch harness connector. Turn ignition on. Measure voltage at terminal No. 8 (Yellow/White wire) at power seat switch harness connector. (Scheme 31) If any voltage exists, go to next step. If no voltage exists, replace power seat switch.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure voltage at terminal No. 22 (Yellow/White wire) at MHSMM harness connector C1. (Scheme 10) If no voltage exists, replace MHSMM. If any voltage exists, repair short to voltage in Yellow/White wire between power seat switch and MHSMM.

Recliner Down Position Stuck

Disconnect power seat switch harness connector. Turn ignition on. Measure voltage at terminal No. 2 (Gray/White wire) at power seat switch harness connector. (Scheme 31) If any voltage exists, go to next step. If no voltage exists, replace power seat switch.
Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure voltage at terminal No. 24 (Gray/White wire) at MHSMM harness connector C1. (Scheme 10) If no voltage exists, replace MHSMM. If any voltage exists, repair short to voltage in Gray/White wire between power seat switch and MHSMM.

Recliner Sensor Out Of Range High

Turn ignition off. Disconnect driver's seat recliner motor sensor harness connector. Measure resistance between ground and terminal "C" (Brown/Red wire) at driver's seat recliner motor sensor harness connector. If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, go to step 3.
Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C2. Measure resistance in Brown/Red wire between terminal "C" at driver's seat recliner motor sensor harness connector and terminal No. 16 at MHSMM harness connector C2. (Scheme 10) If resistance is 5 ohms or less, replace MHSMM. If resistance is greater than 5 ohms, repair open in Brown/Red wire between driver's seat recliner motor sensor and MHSMM.
Connect driver's seat recliner motor sensor harness connector. Ensure all other seat motor sensor harness connectors are connected. Ensure recliner motor is operational. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, monitor recliner position sensor voltage while operating recliner motor to both limits. If voltage display is never greater than 8 volts while motor is operating, go to next step. If voltage display is greater than 8 volts while motor is operating, replace seat track assembly.
Turn ignition off. Disconnect driver's seat recliner motor sensor harness connector. Turn ignition on. Measure voltage at terminal "A" (Brown/White wire) at driver's seat recliner motor sensor harness connector. If voltage is 5.5 volts or less, go to next step. If voltage is greater than 5.5 volts, repair short to voltage in Brown/White wire between Memory Heated Seat/Mirror Module (MHSMM) and driver's seat recliner motor sensor.
Turn ignition off. Disconnect MHSMM harness connector C1. Turn ignition on. Measure voltage at terminal No. 16 (Light Blue wire) at MHSMM harness connector C1. (Scheme 10) If voltage is.2 volt or less, go to next step. If voltage is greater than.2 volt, repair short to voltage in Light Blue wire between MHSMM and driver's seat recliner motor sensor.
Turn ignition off. Connect MHSMM harness connector C1. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, monitor rear recliner position sensor voltage. If greater than.2 volt is displayed, replace MHSMM. If.2 volt or less is displayed, replace seat track assembly.

Recliner Sensor Out Of Range Low

Turn ignition off. Disconnect driver's seat recliner motor sensor harness connector. Turn ignition on. Measure voltage at terminal "A" (Brown/White wire) at driver's seat recliner motor sensor harness connector. If voltage is 4.5 volts or less, go to next step. If voltage is greater than 4.5 volts, go to step 4.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C2. Measure resistance in Brown/White wire between terminal "A" at driver's seat recliner motor sensor harness connector and terminal No. 6 at MHSMM harness connector C2. (Scheme 10) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Brown/White wire between driver's seat recliner motor sensor and MHSMM.
Measure resistance between ground and terminal No. 6 (Brown/White wire) at MHSMM harness connector C2. If resistance is greater than 100 ohms, replace MHSMM. If resistance is 100 ohms or less, repair short to ground in Brown/White wire between driver's seat recliner motor sensor and MHSMM.
Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, monitor recliner riser position sensor voltage. Using a fused jumper wire, connect terminals "A" (Brown/White wire) and "B" (Light Blue wire) at driver's seat recliner motor sensor harness connector. If 4.5 volts or less is displayed, go to next step. If greater than 4.5 volts is displayed, replace seat track assembly.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure resistance between ground and terminal No. 16 (Light Blue wire) at MHSMM harness connector C1. (Scheme 10) If resistance is greater than 1000 ohms, go to next step. If resistance is 1000 ohms or less, repair short to ground in Light Blue wire between driver's seat recliner motor sensor and MHSMM.
Measure resistance in Light Blue wire between terminal "B" at driver's seat recliner motor sensor harness connector and terminal No. 16 at MHSMM harness connector C1. If resistance is 5 ohms or less, replace MHSMM. If resistance is greater than 5 ohms, repair open in Light Blue wire between driver's seat recliner motor sensor and MHSMM.

Recliner Up Position Stuck

Disconnect power seat switch harness connector. Turn ignition on. Measure voltage at terminal No. 4 (Gray/Light Blue wire) at power seat switch harness connector. (Scheme 31) If any voltage exists, go to next step. If no voltage exists, replace power seat switch.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure voltage at terminal No. 11 (Gray/Light Blue wire) at MHSMM harness connector C1. (Scheme 10) If no voltage exists, replace MHSMM. If any voltage exists, repair short to voltage in Gray/Light Blue wire between power seat switch and MHSMM.

Driver Mirror Inoperative From Memory

Note. Ensure seat frame is connected to ground if seat is unbolted from vehicle.

Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C2. Measure voltage at terminal No. 4 (Black/White wire) at MHSMM harness connector C2 while operating power mirror switch to driver's mirror left position. (Scheme 10) If battery voltage exists when switch is pressed, go to next step. If battery voltage does not exist when switch is pressed, repair open in Black/White wire between power mirror switch and MHSMM.
Measure voltage at terminal No. 3 (Yellow/Pink wire) at MHSMM harness connector C2 while operating power mirror switch to driver's mirror down position. If battery voltage exists when switch is pressed, go to next step. If battery voltage does not exist when switch is pressed, repair open in Yellow/Pink wire between power mirror switch and MHSMM.
Measure voltage at terminal No. 5 (Yellow wire) at MHSMM harness connector C2 while operating power mirror switch to driver's mirror up position. If battery voltage exists when switch is pressed, replace MHSMM. If battery voltage does not exist when switch is pressed, repair open in Yellow wire between power mirror switch and MHSMM.

Memory Switch Inoperative

Note. Ensure seat frame is connected to ground if seat is unbolted from vehicle.

Turn ignition off. Disconnect memory set switch harness connector. Measure resistance between ground and terminal No. 3 (Black wire) at memory set switch harness connector. (Scheme 32) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between memory set switch and ground.
Turn ignition on. Measure voltage at terminals No. 4 (Pink/White wire), No. 5 (Pink/Black wire) and No. 6 (Pink/Red wire) at memory set switch harness connector. If any voltage is.5 volt or less, go to next step. If all voltages are greater than.5 volt, replace memory set switch.
Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C1. Measure resistance in appropriate wire(s) between memory set switch harness connector and MHSMM harness connector C1. See «MEMORY SET SWITCH CIRCUITS»(ref-3597-S35601171802000051100000) table. (Scheme 10)and (Scheme 32). If resistances are 5 ohms or less, replace MHSMM. If any resistance is greater than 5 ohms, repair open in appropriate wire between memory set switch and MHSMM.

Set Switch Terminal No.	MHSMM Terminal No.	Wire Color
4	25	Pink/White
5	13	Pink/Black
6	12	Pink/Red

MEMORY SET SWITCH CIRCUITS

Passenger Mirror Inoperative From Memory

Note. Ensure seat frame is connected to ground if seat is unbolted from vehicle.

Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C2. Measure voltage at terminal No. 12 (Dark Blue wire) at MHSMM harness connector C2 while operating power mirror switch to passenger's mirror left position. (Scheme 10) If battery voltage exists when switch is pressed, go to next step. If battery voltage does not exist when switch is pressed, repair open in Dark Blue wire between power mirror switch and MHSMM.
Measure voltage at terminal No. 11 (White wire) at MHSMM harness connector C2 while operating power mirror switch to passenger's mirror down position. If battery voltage exists when switch is pressed, go to next step. If battery voltage does not exist when switch is pressed, repair open in White wire between power mirror switch and MHSMM.
Measure voltage at terminal No. 13 (Yellow/Black wire) at MHSMM harness connector C2 while operating power mirror switch to passenger's mirror up position. If battery voltage exists when switch is pressed, replace MHSMM. If battery voltage does not exist when switch is pressed, repair open in Yellow/Black wire between power mirror switch and MHSMM.

OTIS

CAUTION

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Note. For Overhead Travel Information System (OTIS) wiring diagrams, see OVERHEAD CONSOLES article.

Ambient Temperature Sensor Failure (Otis Displaying "SC" Or "OC")

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, check ambient temperature voltage. If.2 volt or less is displayed, go to next step. If greater than.2 volt is displayed, go to step 5.
Turn ignition off. Disconnect ambient temperature sensor harness connector. Turn ignition on. Using scan tool, check ambient temperature voltage. If approximately 5 volts is not displayed, go to next step. If approximately 5 volts is displayed, replace ambient temperature sensor.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C3. Measure resistance between ground and terminal No. 5 (Violet/Light Green wire) at BCM harness connector C3. (Scheme 7) If resistance is greater than 50 k/ohms, go to next step. If resistance is 50 k/ohms or less, repair short to ground in Violet/Light Green wire between ambient temperature sensor and BCM.
Measure resistance in Violet/Light Green wire between terminal No. 1 at ambient temperature sensor harness connector and terminal No. 5 at BCM harness connector C3. (Scheme 7) If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Violet/Light Green wire between ambient temperature sensor and BCM.
Turn ignition off. Disconnect ambient temperature sensor harness connector. Turn ignition on. Using scan tool, check ambient temperature voltage. If greater than 5.3 volts is displayed, go to next step. If 5.3 volts or less is displayed, go to step 7.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C3. Measure voltage at terminal No. 5 (Violet/Light Green wire) at BCM harness connector C3. (Scheme 7) If voltage is 5.3 volts or less, replace BCM. If voltage is greater than 5.3 volts, repair short to voltage in Violet/Light Green wire between ambient temperature sensor and BCM.
Turn ignition off. Using a fused jumper wire, connect terminals No. 1 (Violet/Light Green wire) and No. 2 (Dark Blue/Gray wire) at ambient temperature sensor harness connector. Turn ignition on. Using scan tool, check ambient temperature voltage. If greater than.2 volt is displayed, remove jumper wire and go to next step. If.2 volt or less is displayed, replace ambient temperature sensor.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C3. Measure resistance in Violet/Light Green wire between terminal No. 1 at ambient temperature sensor harness connector and terminal No. 5 at BCM harness connector C3. (Scheme 7) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Violet/Light Green wire between ambient temperature sensor and BCM.
Measure resistance in Dark Blue/Gray wire between terminal No. 2 at ambient temperature sensor harness connector and terminal No. 10 at BCM harness connector C3. If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Dark Blue/Gray wire between ambient temperature sensor and BCM.

Distance To Empty Inoperative Or Wrong

Check fuel gauge and odometer for proper operation. If problem does not exist, go to next step. If problem exists, repair as necessary. See appropriate test under «INSTRUMENT CLUSTER SYSTEMS»(ref-3597-S01176340382000051100000) .
If all other Overhead Travel Information System (OTIS) functions are operating properly, replace OTIS module. If any other OTIS functions are not operating properly, repair as necessary.

Elapsed Time Inoperative Or Wrong

Clear elapsed time from Overhead Travel Information System (OTIS). Start vehicle and monitor elapsed time on OTIS. If elapsed time is still malfunctioning, replace OTIS module. If elapsed time is operating properly, problem is intermittent.

Incorrect Ambient Temperature Sensor Reading

Remove ambient temperature sensor. Measure resistance between ambient temperature sensor terminals (component side). See «AMBIENT TEMPERATURE SENSOR RESISTANCE»(ref-3597-S08888002192000051100000) table. If resistance is as specified, go to next step. If resistance is not as specified, replace ambient temperature sensor. AMBIENT TEMPERATURE SENSOR RESISTANCE Ambient Temperature °F (°C) k/ohms 32 (0) 29.3-36.0 50 (10) 18.0-22.0 68 (20) 11.4-13.6 77 (25) 9.1-10.8 86 (30) 7.4-8.7 104 (40) 4.9-5.7 122 (50) 3.3-3.8
Turn ignition off. Close all vehicle doors and ensure all lights are off. Wait one minute. Measure resistance between ground and terminal No. 1 (Dark Blue/Gray wire) at ambient temperature sensor harness connector. If resistance is 30 ohms or less, go to next step. If resistance is greater than 30 ohms, go to step 6.
Disconnect Body Control Module (BCM) harness connector C3. Measure resistance between ground and terminal No. 2 (Dark Blue/Gray wire) at ambient temperature sensor harness connector. If resistance is greater than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in Dark Blue/Gray wire between ambient temperature sensor and BCM.
Measure resistance between ground and terminal No. 1 (Violet/Light Green wire) at ambient temperature sensor harness connector. If resistance is greater than 50 k/ohms, go to next step. If resistance is 50 k/ohms or less, repair short to ground in Violet/Light Green wire between ambient temperature sensor and BCM.
Measure resistance between terminals No. 1 (Violet/Light Green wire) and No. 2 (Dark Blue/Gray wire) at ambient temperature sensor harness connector. If resistance is greater than 50 k/ohms, replace BCM. If resistance is 50 k/ohms or less, repair Violet/Light Green wire and Dark Blue/Gray wire shorted to each other between ambient temperature sensor and BCM.
Disconnect Body Control Module (BCM) harness connector C3. Measure resistance in Dark Blue/Gray wire between terminal No. 2 at ambient temperature sensor harness connector and terminal No. 10 at BCM harness connector C3. (Scheme 7) If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Dark Blue/Gray wire between ambient temperature sensor and BCM.

OTIS Mileage & Distance Function Malfunction

If all other Overhead Travel Information System (OTIS) functions are operating properly, go to next step. If any other OTIS functions are not operating properly, replace OTIS module.
Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, retrieve PCM DTCs. If any DTCs exist, repair powertrain concern as necessary. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. If no DTCs exist, check all factors that affect mileage and distance (tire size, injector pulse, brake adjustment, etc.) and repair as necessary.

OTIS Screen Displays FAIL

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, perform auto self-test while observing Overhead Travel Information System (OTIS) display. If FAIL is displayed on OTIS, replace OTIS module. If FAIL is not displayed on OTIS, problem is intermittent.

OTIS Screen Displays No Values

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, perform auto self-test while observing Overhead Travel Information System (OTIS) display. If no values are displayed on OTIS, replace Body Control Module (BCM). If any values are displayed on OTIS, problem is intermittent.

OTIS Segments Fail To Light Up

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, perform auto self-test while observing Overhead Travel Information System (OTIS) display. If any segments do not display on OTIS, replace OTIS module. If all segments display on OTIS, problem is intermittent.

POWER DOOR LOCKS/RKE SYSTEM

CAUTION

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Note. For power door locks and remote and remote keyless entry systems wiring diagrams, see WIRING DIAGRAMS in POWER DOOR LOCKS & TRUNK RELEASE and REMOTE KEYLESS ENTRY SYSTEMS articles.

Decklid Release Solenoid Output Failure

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, clear Body Control Module (BCM) Diagnostic Trouble Codes (DTCs). Press decklid release switch several times. Using scan tool, retrieve BCM DTCs. If this DTC resets, go to next step. If this DTC does not reset, problem is intermittent.
Turn ignition off. Disconnect decklid release solenoid/ajar switch harness connector. Turn ignition on. Connect a test light between ground and terminal No. 3 (Black/White wire) at decklid release solenoid/ajar switch harness connector. If test light illuminates, go to next step. If test light does not illuminate, go to step 4.
Turn ignition off. Disconnect BCM from back of junction block. Turn ignition on. Connect a test light between ground and terminal No. 3 (Black/White wire) at decklid release solenoid/ajar switch harness connector. If test light does not illuminate, replace BCM. If test light illuminates, repair short to voltage in Black/White wire between decklid release solenoid/ajar switch and BCM.
Turn ignition off. Measure resistance between ground and terminal No. 1 (Black wire) at decklid release solenoid/ajar switch harness connector. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between decklid release solenoid/ajar switch and ground.
Connect a test light between terminals No. 1 (Black wire) and No. 3 (Black/White wire) at decklid release solenoid/ajar switch harness connector. Observe test light while pressing decklid release switch. If test light does not illuminate when switch is pressed, go to next step. If test light illuminates when switch is pressed, replace decklid release solenoid/ajar switch.
Disconnect BCM from back of junction block. Measure resistance between ground and terminal No. 3 (Black/White wire) at decklid release solenoid/ajar switch harness connector. If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, repair short to ground in Black/White wire between decklid release solenoid/ajar switch and BCM.
Measure resistance in Black/White wire between terminal No. 3 at decklid release solenoid/ajar switch harness connector and terminal No. 8 at BCM connector on back of junction block. (Scheme 9) If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Black/White wire between decklid release solenoid/ajar switch and BCM.

Decklid Release Switch Failure

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, clear Body Control Module (BCM) Diagnostic Trouble Codes (DTCs). Press decklid release switch several times. Using scan tool, retrieve BCM DTCs. If this DTC resets, go to next step. If this DTC does not reset, problem is intermittent.
Turn ignition off. Disconnect decklid release switch harness connector. Turn ignition on. Using scan tool, clear DTCs. Cycle ignition switch off, then on. Wait 30 seconds. Using scan tool, retrieve DTCs. If this DTC resets, go to next step. If this DTC does not reset, replace decklid release switch.
Disconnect Body Control Module (BCM) harness connector C1. Turn ignition on. Measure voltage at terminal No. 1 (Black/White wire) at decklid release switch harness connector. If no voltage exists, replace BCM. If any voltage exists, repair short to voltage in Black/White wire between decklid release switch and BCM.

Driver Door Central Lock (Arm)/Unlock (Disarm) Switch Failure

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, clear Body Control Module (BCM) Diagnostic Trouble Codes (DTCs). Using key in driver's door, lock and unlock vehicle several times. Using scan tool, retrieve BCM DTCs. If this DTC resets, go to next step. If this DTC does not reset, problem is intermittent.
Turn ignition off. Using key in driver's door, lock and unlock vehicle several times. If key is not binding in any position, go to next step. If key is binding in any position, repair or replace driver's door lock cylinder as necessary.
Disconnect driver's door cylinder lock switch harness connector. Turn ignition on. Using scan tool, check driver's door disarm switch voltage. If any voltage is displayed, go to next step. If no voltage is displayed, replace driver's door cylinder lock switch.
Turn ignition off. Disconnect BCM harness connector C4. Turn ignition on. Measure voltage at terminal No. 13 (Light Green/Orange wire) at BCM harness connector C4. (Scheme 7) If no voltage exists, replace BCM. If any voltage exists, repair short to voltage in Light Green/Orange wire between driver's door cylinder lock switch and BCM.

Passenger Door Central Lock (Arm)/Unlock (Disarm) Switch Failure

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, clear Body Control Module (BCM) Diagnostic Trouble Codes (DTCs). Using key in passenger's door, lock and unlock vehicle several times. Using scan tool, retrieve BCM DTCs. If this DTC resets, go to next step. If this DTC does not reset, problem is intermittent.
Turn ignition off. Using key in passenger's door, lock and unlock vehicle several times. If key is not binding in any position, go to next step. If key is binding in any position, repair or replace passenger's door lock cylinder as necessary.
Disconnect passenger's door cylinder lock switch harness connector. Turn ignition on. Using scan tool, check passenger's door disarm switch voltage. If any voltage is displayed, go to next step. If no voltage is displayed, replace passenger's door cylinder lock switch.
Turn ignition off. Disconnect BCM harness connector C4. Turn ignition on. Measure voltage at terminal No. 3 (Dark Green/Orange wire) at BCM harness connector C4. (Scheme 7) If no voltage exists, replace BCM. If any voltage exists, repair short to voltage in Dark Green/Orange wire between driver's door cylinder lock switch and BCM.

RKE Program Mode Entered Without Program Request

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Replace Remote Keyless Entry (RKE) module. Using scan tool, program all transmitters to be used with vehicle. Using scan tool, clear Body Control Module (BCM) Diagnostic Trouble Codes (DTCs). Using RKE transmitters, lock and unlock vehicle several times. Using scan tool, retrieve BCM DTCs. If this DTC resets, replace BCM.

RKE Unable To Enter Program Mode

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Replace Remote Keyless Entry (RKE) module. Using scan tool, clear Body Control Module (BCM) Diagnostic Trouble Codes (DTCs). Using scan tool, attempt to program RKE transmitters. Using scan tool, retrieve BCM DTCs. If this DTC resets, replace BCM.

All Doors Failing To Lock & Unlock From Any Switch

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, activate door lock relay. If all doors lock, go to next step. If all doors do not lock, go to step 12.
Using scan tool, check door lock switch voltage. If greater than.2 volt is displayed, go to next step. If.2 volt or less is displayed, go to step 7.
Turn ignition off. Disconnect passenger's door lock switch harness connector. Turn ignition on. Using scan tool, check door lock switch voltage. If greater than.2 volt is displayed, go to next step. If.2 volt or less is displayed, replace passenger's door lock switch.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C4. Turn ignition on. Measure voltage at terminal No. 12 (White/Light Green wire) at BCM harness connector C4. (Scheme 7) If voltage is.2 volt or less, go to next step. If voltage is greater than.2 volt, repair short to voltage in White/Light Green wire between passenger's door lock switch and BCM.
Turn ignition off. Connect BCM harness connector C4. Disconnect driver's door lock switch harness connector. Turn ignition on. Using scan tool, check door lock switch voltage. If greater than.2 volt is displayed, go to next step. If.2 volt or less is displayed, replace driver's door lock switch.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C4. Turn ignition on. Measure voltage at terminal No. 5 (White/Dark Green wire) at BCM harness connector C4. If voltage is.2 volt or less, replace BCM. If voltage is greater than.2 volt, repair short to voltage in White/Light Green wire between passenger's door lock switch and BCM.
Turn ignition off. Disconnect driver's door lock switch harness connector. Measure voltage at terminal No. 1 (Pink wire) at driver's door lock switch harness connector. see scheme 32 If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Disconnect Body Control Module (BCM) harness connector C4. Disconnect passenger's door lock switch harness connector. Measure resistance between ground and terminal No. 12 (White/Light Green wire) at BCM harness connector C4. (Scheme 7) If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, repair short to ground in White/Light Green wire between passenger's door lock switch and BCM.
Measure resistance between ground and terminal No. 5 (White/Dark Green wire) at BCM harness connector C4. If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, repair short to ground in White/Dark Green wire between driver's door lock switch and BCM.
Measure resistance in White/Dark Green wire between terminal No. 4 at driver's door lock switch harness connector and terminal No. 5 at BCM harness connector C4. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in White/Dark Green wire between driver's door lock switch and BCM.
Measure resistance in White/Light Green wire between terminal No. 4 at passenger's door lock switch harness connector and terminal No. 12 at BCM harness connector C4. If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in White/Light Green wire between passenger's door lock switch and BCM.
Turn ignition off. Remove circuit breaker No. 2 (20-amp) from junction block. Measure resistance of circuit breaker. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace circuit breaker.
Disconnect junction block harness connector C9. (Scheme 9) Measure voltage at terminal No. 2 (Light Blue/Red wire) at junction block harness connector C9. (Scheme 33) If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Disconnect junction block harness connector C7. Measure resistance between ground and terminal No. 10 (Black wire) at junction block harness connector C7. (Scheme 34) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between ground and junction block.
Remove door lock relay from junction block. Measure resistance between terminal No. 85 and 86 at door lock relay (component side). (Scheme 35) If resistance is 50-90 ohms, go to next step. If resistance is not 50-90 ohms, replace door lock relay.
Measure resistance between terminal No. 86 and terminals No. 30, 87 and 87a at door lock relay (component side). If all resistances are greater than 100 ohms, go to next step. If any resistance is 100 ohms or less, replace door lock relay.
Measure voltage at terminal No. 83 at door lock relay socket on junction block. (Scheme 14) If battery voltage exists, go to next step. If battery voltage does not exist, replace junction block.
Connect junction block harness connectors C7 and C9. Connect a test light between terminals No. 83 and 85 at door lock relay socket on junction block. Turn ignition on. Using scan tool, activate door lock relay. If test light does not illuminate, go to next step. If test light illuminates, replace junction block.
Turn ignition off. Disconnect Body Control Module (BCM) from back of junction block. Measure resistance between terminal No. 85 at door lock relay socket on junction block and terminal No. 15 at BCM connector on back of junction block. (Scheme 9)and (Scheme 14). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace junction block.
Disconnect junction block harness connector C7. Measure voltage at input side of circuit breaker No. 2 in junction block. If battery voltage exists, go to next step. If battery voltage does not exist, replace junction block.
Install circuit breaker No. 2. Measure voltage at terminal No. 82 at door lock relay socket on junction block. If battery voltage exists, go to next step. If battery voltage does not exist, replace junction block.
Disconnect junction block harness connector C6. Measure resistance between terminal No. 81 at door lock relay socket on junction block and terminal No. 3 at junction block connector C6 (junction block side). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace junction block.
Connect junction block harness connector C7. Measure resistance between ground and terminal No. 84 at door lock relay socket on junction block. If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, replace junction block.

Scheme 33

Scheme 34

Scheme 35

All Doors Failing To Lock & Unlock One Any Switch

If vehicle is equipped with Vehicle Theft Security System (VTSS), go to next step. If vehicle is not equipped with VTSS, go to step 9.
Lock and unlock vehicle using key in driver's and passenger's door lock cylinders. If vehicle does not lock and unlock properly from door lock cylinders, go to next step. If vehicle locks and unlocks properly from door lock cylinders, go to step 9.
Turn ignition off. Disconnect inoperative door lock cylinder switch harness connector. Measure voltage at terminal No. 2 (Pink wire) at door lock cylinder switch harness connector. If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Disconnect Body Control Module (BCM) harness connector C4. Measure resistance between ground and terminal No. 1 (Light Green/Orange wire on driver's side; Dark Green/Orange wire on passenger's side) at door lock cylinder switch harness connector. If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, repair short to ground in appropriate wire between door lock cylinder switch and BCM.
If driver's door lock cylinder switch is malfunctioning, go to next step. If passenger's door lock cylinder switch is malfunctioning, go to step 7.
Measure resistance in Light Green/Orange wire between terminal No. 1 at driver's door lock cylinder switch harness connector and terminal No. 13 at BCM harness connector C4. (Scheme 7) If resistance is 5 ohms or less, go to step 8. If resistance is greater than 5 ohms, repair open in Light Green/Orange wire between door lock cylinder switch and BCM.
Measure resistance in Dark Green/Orange wire between terminal No. 1 at passenger's door lock cylinder switch harness connector and terminal No. 3 at BCM harness connector C4. (Scheme 7) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Dark Green/Orange wire between door lock cylinder switch and BCM.
Connect BCM harness connector C4. Connect scan tool to Data Link Connector (DLC). Using a fused jumper wire, connect terminals No. 1 and 2 at appropriate door lock cylinder switch harness connector. Using scan tool, check door disarm switch voltage. If greater than 9 volts is displayed, replace appropriate door lock cylinder switch. If 9 volts or less is display, replace BCM.
Disconnect malfunctioning door lock switch harness connector. Measure voltage at terminal No. 1 (Pink wire) at appropriate door lock switch harness connector. see scheme 32 If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
If driver's door lock switch is malfunctioning, go to next step. If passenger's door lock switch is malfunctioning, go to step 12.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C4. Measure resistance in White/Light Green wire between terminal No. 4 at driver's door lock switch harness connector and terminal No. 5 at BCM harness connector C4. (Scheme 7)and see scheme 32. If resistance is 5 ohms or less, go to step 13. If resistance is greater than 5 ohms, repair open in White/Light Green wire between driver's door lock switch and BCM.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C4. Measure resistance in White/Dark Green wire between terminal No. 4 at passenger's door lock switch harness connector and terminal No. 12 at BCM harness connector C4. (Scheme 7)and see scheme 32. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in White/Dark Green wire between passenger's door lock switch and BCM.
Connect BCM harness connector C4. Connect scan tool to Data Link Connector (DLC). Using a fused jumper wire, connect terminals No. 1 and 4 at appropriate door lock switch harness connector. Using scan tool, check door lock switch voltage. If greater than 9 volts is displayed, replace appropriate door lock switch. If 9 volts or less is display, replace BCM.

All Doors Failing To Lock From Any Switch

Turn ignition off. Remove door lock relay from junction block. Measure voltage at terminal No. 83 at door lock relay socket on junction block. (Scheme 14) If battery voltage exists, go to next step. If voltage does not exist, repair power distribution circuit or replace junction block as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Connect scan tool to Data Link Connector (DLC). Connect a test light between terminals No. 83 and 85 at door lock relay socket on junction block. Turn ignition on. Using scan tool, activate door lock relay. If test light illuminates, go to next step. If test light does not illuminate, go to step 9.
Turn ignition off. Remove door unlock relay and driver's door unlock relay from junction block. Measure resistance between ground and terminal No. 81 at door lock relay socket on junction block. If resistance is greater than 20 ohms, go to next step. If resistance is 20 ohms or less, repair short to ground in Orange wire between door lock relay and door lock motor/ajar switches.
Measure resistance between terminals No. 30 and 87a at door unlock relay (component side). (Scheme 35) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace door unlock relay.
Measure resistance between ground and terminal No. 79 at door unlock relay socket on junction block. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace junction block.
Measure resistance between terminals No. 85 and 86 at door lock relay (component side). If resistance is 50-90 ohms, go to next step. If resistance is not 50-90, replace door lock relay.
Measure resistance between terminal No. 86 and terminals No. 30, 87 and 87a at door lock relay (component side). If all resistances are greater than 100 ohms, go to next step. If any resistance is 100 ohms or less, replace door lock relay.
Measure voltage at terminal No. 82 at door lock relay socket on junction block. If battery voltage exists, problem is intermittent. If battery voltage does not exist, replace junction block.
Turn ignition off. Disconnect Body Control Module (BCM) from back of junction block. Measure resistance between terminal No. 85 at door lock relay socket on junction block and terminal No. 15 at BCM connector on back of junction block. (Scheme 9)and (Scheme 14). If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, replace junction block.

All Doors Failing To Lock From One Switch

Replace appropriate switch.

All Doors Failing To Unlock From Any Switch

Turn ignition off. Remove door unlock relay from junction block. Measure voltage at terminal No. 78 at door unlock relay socket on junction block. (Scheme 14) If battery voltage exists, go to next step. If voltage does not exist, repair power distribution circuit or replace junction block as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Connect scan tool to Data Link Connector (DLC). Connect a test light between terminals No. 78 and 80 at door unlock relay socket on junction block. Turn ignition on. Using scan tool, activate door unlock relay. If test light illuminates, go to next step. If test light does not illuminate, go to step 9.
Turn ignition off. Remove door lock relay and driver's door unlock relay from junction block relay. Measure resistance between ground and terminal No. 76 at door lock relay socket on junction block. If resistance is greater than 20 ohms, go to next step. If resistance is 20 ohms or less, repair short to ground in Pink/Black wire between door unlock relay and door lock motor/ajar switches.
Measure resistance between terminals No. 85 and 86 at door unlock relay (component side). (Scheme 35) If resistance is 50-90 ohms, go to next step. If resistance is not 50-90, replace door unlock relay.
Measure resistance between terminal No. 86 and terminals No. 30, 87 and 87a at door unlock relay (component side). If all resistances are greater than 100 ohms, go to next step. If any resistance is 100 ohms or less, replace door unlock relay.
Measure voltage at terminal No. 77 at door unlock relay socket on junction block. If battery voltage exists, go to next step. If battery voltage does not exist, replace junction block.
Remove door lock relay from junction block. Measure resistance between terminals No. 30 and 87a at door lock relay (component side). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace door lock relay.
Measure resistance between ground and terminal No. 79 at door unlock relay socket on junction block. If resistance is 5 ohms or less, problem is intermittent. If resistance is greater than 5 ohms, replace junction block.
Turn ignition off. Disconnect Body Control Module (BCM) from back of junction block. Measure resistance between terminal No. 80 at door unlock relay socket on junction block and terminal No. 19 at BCM connector on back of junction block. (Scheme 9)and (Scheme 14). If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, replace junction block.

All Doors Failing To Unlock From One Switch

Replace appropriate switch.

Automatic (Rolling) Door Locks

Turn ignition off. Connected scan tool to Data Link Connector (DLC). Close all door. Turn ignition on. Using scan tool, check door ajar status. If CLOSED is not displayed for any door, go to next step. If CLOSED is displayed for any door, repair appropriate door ajar circuit as necessary.
Using scan tool, retrieve Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs). If no DTCs exist, go to next step. If any DTCs exist, repair powertrain concern. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
Using scan tool, check auto door lock status. If auto door lock status is enabled, replace BCM. If auto door lock status is not enabled, enable auto door lock status using scan tool.

Door Lock Inhibit Malfunction

Turn ignition off. Connected scan tool to Data Link Connector (DLC). Open driver's door. Using scan tool, read driver's door ajar status. If CLOSED is displayed, go to next step. If CLOSED is not displayed, repair driver's door ajar circuit as necessary.
Ensure key is in ignition switch. Using scan tool, check key-in ignition status. If CLOSED is not displayed, go to next step. If CLOSED is displayed, replace Body Control Module (BCM).
Turn ignition off. Disconnect ignition switch harness connector. Using a fused jumper wire, connect terminals No. 2 (Light Blue wire) and No. 3 (Black/Light Green wire) at ignition switch harness connector. (Scheme 36) Using scan tool, check key-in ignition status. If CLOSED is not displayed, go to next step. If CLOSED is displayed, replace ignition switch.
Remove jumper wire. Measure resistance between ground and terminal No. 3 (Black/Light Green wire) at ignition switch harness connector. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black/Light Green wire between ignition switch and ground.
Disconnect Body Control Module (BCM) harness connector C2. Measure resistance in Light Blue wire between terminal No. 2 at ignition switch harness connector and terminal No. 24 at BCM harness connector C2. (Scheme 7)and (Scheme 36). If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Light Blue wire between ignition switch and BCM.

Scheme 36

Driver Front Door Failing To Lock From Any Switch

Remove driver's door unlock relay from junction block. Measure resistance between ground and terminal No. 89 at driver's door unlock relay socket on junction block. (Scheme 14) If resistance is greater than 5 ohms, replace junction block. If resistance is 5 ohms or less, replace driver's door unlock relay.

Driver Front Door Failing To Unlock From Any Switch

Turn ignition off. Remove driver's door unlock relay from junction block. Measure voltage at terminal No. 87 at driver's door unlock relay socket on junction block. (Scheme 14) If battery voltage exists, go to next step. If battery voltage does not exist, replace junction block.
Measure voltage at terminal No. 88 at driver's door unlock relay socket on junction block. If battery voltage exists, go to next step. If battery voltage does not exist, replace junction block.
Disconnect Body Control Module (BCM) from back of junction block. Measure resistance between terminal No. 90 at driver's door unlock relay socket on junction block and terminal No. 13 at BCM connector on back of junction block. (Scheme 9)and (Scheme 14). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, replace junction block.
Connect BCM to junction block. Connect scan tool to Data Link Connector (DLC). Connect a test light between terminals No. 88 and 90 at driver's door unlock relay socket on junction block. Turn ignition on. Using scan tool, activate driver's door unlock relay. If test light illuminates, replace driver's door unlock relay. If test light does not illuminate, replace BCM.

Inoperative Decklid Release

Disconnect decklid release solenoid/ajar switch harness connector. Measure resistance between ground and terminal No. 1 (Black wire) at decklid release solenoid/ajar switch harness connector. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between decklid release solenoid/ajar switch and ground.
Connect test light between terminals No. 1 (Black wire) and No. 3 (Black/White wire) at decklid release solenoid/ajar switch harness connector. Press decklid release switch. If test light does not illuminate, go to next step. If test light illuminates when switch is pressed, replace decklid release solenoid/ajar switch.
Disconnect decklid release switch harness connector. Disconnect Body Control Module (BCM) harness connector C1. Measure resistance in Black/White wire between terminal No. 1 at decklid release switch harness connector and terminal No. 1 at BCM harness connector C1. (Scheme 7) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black/White wire between decklid release switch and BCM.
Disconnect BCM from back of junction block. Measure resistance in Black/White wire between terminal No. 3 at decklid release solenoid/ajar switch harness connector and terminal No. 8 at BCM connector on back of junction block. (Scheme 9) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black/White wire between decklid release solenoid/ajar switch and BCM.
Measure voltage at terminal No. 2 at decklid release switch harness connector. If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Connect BCM harness connectors and connect BCM to junction block. Connect test light between terminals No. 1 (Black wire) and No. 3 (Black/White wire) at decklid release solenoid/ajar switch harness connector. Using another fused jumper wire, connect positive battery voltage to terminal No. 1 (Black/White wire) at decklid release switch harness connector. If test light does not illuminate, replace BCM. If test light illuminates, replace decklid release switch.

One Door Failing To Lock & Unlock From Any Switch

If problem is with driver's door, go to next step. If problem is not with driver's door, go to step 13.
Remove driver's door unlock relay from junction block. Measure resistance between terminals No. 85 and 86 at driver's door unlock relay (component side). (Scheme 35) If resistance is 50-90 ohms, go to next step. If resistance is not 50-90 ohms, replace driver's door unlock relay.
Measure resistance between terminal No. 86 and terminals No. 30, 87 and 87a at driver's door unlock relay (component side). If all resistances are greater than 100 ohms, go to next step. If any resistance is 100 ohms or less, replace driver's door unlock relay.
Measure voltage at terminal No. 87 at driver's door unlock relay socket on junction block. (Scheme 14) If battery voltage exists, go to next step. If battery voltage does not exist, replace junction block.
Measure voltage at terminal No. 88 at driver's door unlock relay socket on junction block. If battery voltage exists, go to next step. If battery voltage does not exist, replace junction block.
Connect scan tool to Data Link Connector (DLC). Connect a test light between terminals No. 88 and 90 at driver's door unlock relay socket on junction block. Turn ignition on. Using scan tool, activate driver's door unlock relay. If test light illuminates, go to next step. If test light does not illuminate, go to step 12.
Turn ignition off. Install driver's door unlock relay. Remove key from ignition. Using a test light connected to ground, backprobe terminal No. 7 (Dark Blue wire) at junction block harness connector C6. (Scheme 9) Using either door lock switch, unlock vehicle. If test light illuminates, go to next step. If test light does not illuminate, replace junction block.
Using a test light connected to ground, backprobe terminal No. 3 (Orange wire) at junction block harness connector C6. Using either door lock switch, lock vehicle. If test light illuminates, go to next step. If test light does not illuminate, replace junction block.
Disconnect driver's door lock motor/ajar switch harness connector. Connect a test light between terminals No. 3 (Dark Blue wire) and No. 4 (Orange wire) at driver's door lock motor/ajar switch harness connector. (Scheme 29) Using either door lock switch, lock and unlock vehicle. If test light does not illuminate when vehicle is locked and unlocked, go to next step. If test light illuminates when vehicle is locked and unlocked, replace driver's door lock motor/ajar switch.
Connect a test light between ground and terminals No. 3 (Dark Blue wire) at driver's door lock motor/ajar switch harness connector. Using either door lock switch, unlock vehicle. If test light illuminates, go to next step. If test light does not illuminate, repair open in Dark Blue wire between driver's door lock motor/ajar switch and junction block.
Connect a test light between ground and terminals No. 4 (Orange wire) at driver's door lock motor/ajar switch harness connector. Using either door lock switch, lock vehicle. If test light illuminates, problem is intermittent. If test light does not illuminate, repair open in Orange wire between driver's door lock motor/ajar switch and junction block.
Turn ignition off. Disconnect Body Control Module (BCM) from back of junction block. Measure resistance between terminal No. 90 at driver's door unlock relay socket on junction block and terminal No. 13 at BCM connector on back of junction block. (Scheme 9)and (Scheme 14). If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, replace junction block.
Turn ignition off. Remove key from ignition. Disconnect inoperative door lock motor/ajar switch harness connector. Connect a test light between terminals No. 3 (Pink/Black wire) and No. 4 (Orange wire) at disconnected door lock motor/ajar switch harness connector. (Scheme 29) Using either door lock switch, lock and unlock vehicle. If test light does not illuminate when vehicle is locked and unlocked, go to next step. If test light illuminates when vehicle is locked and unlocked, replace appropriate door lock motor/ajar switch.
Using a test light connected to ground, backprobe appropriate terminal (Orange wires) at junction block harness connector C6. See «DOOR LOCK DRIVER CIRCUIT IDENTIFICATION»(ref-3597-S07551244122000051100000) table. (Scheme 9) Using either door lock switch, lock vehicle. If test light illuminates, go to next step. If test light does not illuminate, replace junction block. DOOR LOCK DRIVER CIRCUIT IDENTIFICATION Inoperative Lock Terminal No. Left Rear 4 Right Front 5 Right Rear 5
Using a test light connected to ground, backprobe appropriate terminal (Pink/Black wires) at junction block harness connector C7. See «DOOR UNLOCK DRIVER CIRCUIT IDENTIFICATION»(ref-3597-S24856317552000051100000) table. (Scheme 9) Using either door lock switch, unlock vehicle. If test light illuminates, go to next step. If test light does not illuminate, replace junction block. DOOR UNLOCK DRIVER CIRCUIT IDENTIFICATION Inoperative Lock Terminal No. Left Rear 11 Right Front 12 Right Rear 12
Connect a test light between ground and terminals No. 3 (Pink/Black wire) at appropriate door lock motor/ajar switch harness connector. Using either door lock switch, unlock vehicle. If test light illuminates, go to next step. If test light does not illuminate, repair open in Pink/Black wire between appropriate door lock motor/ajar switch and junction block.
Connect a test light between ground and terminals No. 4 (Orange wire) at appropriate door lock motor/ajar switch harness connector. Using either door lock switch, lock vehicle. If test light illuminates, problem is intermittent. If test light does not illuminate, repair open in Orange wire between appropriate door lock motor/ajar switch and junction block.

Remote Keyless Entry (RKE) Problem

Obtain known good transmitter. Turn ignition off. Connect scan tool to Data Link Connector (DLC). Using scan tool, program transmitter. Press lock or unlock button on transmitter. If RKE responds correctly, replace and program new transmitter. If RKE is inoperative or does not operate correctly, replace RKE module and program all transmitters to be used with vehicle. Using scan tool, program all RKE transmitters to be used with vehicle.

RKE Horn Chirp Inoperative

Press horn pad on steering wheel. If horn is operating properly, go to next step. If horn does not operate properly, repair horn as necessary. See appropriate STEERING COLUMN SWITCHES article.
Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, check horn chirp status. If ENABLED is displayed, go to next step. If ENABLED is not displayed, enable horn chirp using scan tool.
Turn ignition off. Disconnect Body Control Module (BCM) from back of junction block. Using a fused jumper wire, momentarily ground terminal No. 18 at BCM connector on back of junction block. (Scheme 9) If horn sounds, replace BCM. If horn does not sound, replace junction block.

SPEED PROPORTIONAL STEERING SYSTEM

CAUTION

Note. After making any repairs, perform SPEED PROPORTIONAL STEERING SYSTEM VERIFICATION TEST under VERIFICATION TESTS.

Note. For speed proportional steering system wiring diagrams, see ELECTRONIC STEERING article in WIRING DIAGRAMS.

Speed Proportional Steering Circuit Short To Voltage

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Start engine. Turn steering wheel and observe amount of steering assist. Using scan tool, de-activate Speed Proportional Steering (SPS) solenoid for 15 seconds while turning steering wheel and observing amount of steering assist. If steering power assist is unchanged once SPS solenoid is de-activated, go to next step. If steering has less power assist once SPS solenoid is de-activated, problem is intermittent.
Turn ignition off. Disconnect SPS solenoid harness connector. Measure resistance between SPS solenoid terminals (component side). If resistance is 5.7-6.3 ohms at 68°F (20°C), go to next step. If resistance is not 5.7-6.3 ohms at 68°F (20°C), replace SPS solenoid.
Start engine. Measure voltage at terminal No. 2 (Violet/Orange wire) at SPS solenoid harness connector. If no voltage exists, go to next step. If any voltage exists, repair short to voltage in Violet/Orange wire between SPS solenoid and BCM, and replace BCM.
Measure voltage at terminal No. 1 (Light Green/Pink wire) at SPS solenoid harness connector. If no voltage exists, go to next step. If any voltage exists, repair short to voltage in Light Green/Pink wire between SPS solenoid and BCM.
Turn ignition off. Disconnect Body Control Module (BCM) from back of junction block. Measure resistance between terminals No. 3 and 4 at BCM connector on back of junction block. (Scheme 9) If resistance is 5 ohms or less, repair Light Green/Pink wire and Violet/Orange wire short to each other between SPS solenoid and BCM. If resistance is greater than 5 ohms, replace BCM.

Speed Proportional Steering Solenoid Circuit Open/Shorted To Ground

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Start engine. Turn steering wheel and observe amount of steering assist. Using scan tool, de-activate Speed Proportional Steering (SPS) solenoid for 15 seconds while turning steering wheel and observing amount of steering assist. If steering power assist is unchanged once SPS solenoid is de-activated, go to next step. If steering has less power assist once SPS solenoid is de-activated, problem is intermittent.
Turn ignition off. Disconnect SPS solenoid harness connector. Measure resistance between SPS solenoid terminals (component side). If resistance is 5.7-6.3 ohms at 68°F (20°C), go to next step. If resistance is not 5.7-6.3 ohms at 68°F (20°C), replace SPS solenoid.
Turn ignition on. Connect test light between positive battery voltage and terminal No. 2 (Violet/Orange wire) at SPS solenoid harness connector. If test light does not illuminate, go to next step. If test light illuminates, repair short to ground in Violet/Orange wire between SPS solenoid and BCM.
Connect test light between positive battery voltage and terminal No. 1 (Light Green/Pink wire) at SPS solenoid harness connector. If test light does not illuminate, go to next step. If test light illuminates, repair short to ground in Light Green/Pink wire between SPS solenoid and BCM.
Turn ignition off. Disconnect Body Control Module (BCM) from back of junction block. Measure resistance between terminals No. 3 and 4 at BCM connector on back of junction block. (Scheme 9) If resistance is greater than 100 ohms, go to next step. If resistance is 100 ohms or less, repair Light Green/Pink wire and Violet/Orange wire short to each other between SPS solenoid and BCM.
Measure resistance in Light Green/Pink wire between terminal No. 1 at SPS solenoid harness connector and terminal No. 3 at BCM connector on back of junction block. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Light Green/Pink wire between SPS solenoid and BCM.
Measure resistance in Violet/Orange wire between terminal No. 2 at SPS solenoid harness connector and terminal No. 4 at BCM connector on back of junction block. If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Violet/Orange wire between SPS solenoid and BCM.

Speed Proportional Steering Solenoid Over-Temperature

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Start engine. Turn steering wheel and observe amount of steering assist. Using scan tool, de-activate Speed Proportional Steering (SPS) solenoid for 15 seconds while turning steering wheel and observing amount of steering assist. If steering power assist is unchanged once SPS solenoid is de-activated, go to next step. If steering has less power assist once SPS solenoid is de-activated, problem is intermittent.
Turn ignition off. Disconnect SPS solenoid harness connector. Measure resistance between SPS solenoid terminals (component side). If resistance is 5.7-6.3 ohms at 68°F (20°C), go to next step. If resistance is not 5.7-6.3 ohms at 68°F (20°C), replace SPS solenoid.
Check wiring between SPS solenoid and BCM for short to ground. If problem exists, repair as necessary. If problem does not exist, replace Body Control Module (BCM).

VTSS

CAUTION

Note. After making any repairs, perform VTSS VERIFICATION TEST under VERIFICATION TESTS.

Note. For Vehicle Theft/Security System (VTSS) wiring diagrams, see WIRING DIAGRAMS in appropriate ANTI-THEFT SYSTEMS article.

Alarm Trips On Its Own

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Using scan tool, check alarm trip status. If any causes were displayed, repair intermittent alarm triggering condition. If no causes were displayed, problem is intermittent.

Headlight/Park Lamps Fail To Flash With Alarm Tripped

Turn headlights on. If headlights and parking lights operate properly, replace BCM. If headlights and parking lights do not operate properly, repair lights as necessary. See appropriate test under EXTERIOR LIGHTING SYSTEMS .

Horn Fails To Sound With Alarm Tripped

Press horn pad on steering wheel. If horn is operating properly, go to next step. If horn does not operate properly, repair horn as necessary. See appropriate STEERING COLUMN SWITCHES article.
Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, check decklid cylinder switch status. If PRESENT is displayed, go to next step. If PRESENT is not displayed, perform «VTSS INDICATOR LAMP STAYS ON»(ref-3597-S17073096012000051100000).
Turn ignition off. Disconnect Body Control Module (BCM) from back of junction block. Using a fused jumper wire, momentarily ground terminal No. 18 at BCM connector on back of junction block. (Scheme 9) If horn sounds, replace BCM. If horn does not sound, replace junction block.

VTSS Indicator Inoperative

Turn ignition off. Disconnect sun sensor/VTSS indicator harness connector. Measure voltage at terminal No. 1 (Pink wire) at sun sensor/VTSS indicator harness connector. (Scheme 26) If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Connect scan tool to Data Link Connector (DLC). Turn ignition on. Measure voltage between terminals No. 1 (Pink wire) and 2 (Black/Orange wire) at sun sensor/VTSS indicator harness connector. Using scan tool, activate VTSS light. If voltage does not pulse between 2-10 volts, go to next step. If voltage pulses between 2-10 volts, replace sun sensor/VTSS indicator.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C2. Measure resistance in Black/Orange wire between terminal No. 2 at sun sensor/VTSS indicator harness connector and terminal No. 23 at BCM harness connector C2. (Scheme 7) If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Black/Orange wire between sun sensor/VTSS indicator and BCM.

VTSS Indicator Lamp Stays On

Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, attempt to communicate with Powertrain Control Module (PCM). If communication was established, go to next step. If communication was not established, repair communication concern. See «NO RESPONSE FROM POWERTRAIN CONTROL MODULE (PCI BUS)»(ref-3597-S05035483622000051100000) under COMMUNICATIONS.
Using scan tool, check decklid cylinder switch status. If PRESENT is displayed, go to next step. If PRESENT is not displayed, go to step 4.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C2. Turn ignition on. If VTSS indicator is not still illuminated, replace BCM. If VTSS indicator is still illuminated, repair short to ground in Black/Orange wire between sun sensor/VTSS indicator and BCM.
Turn ignition off. Disconnect trunk knock out switch harness connector. Measure resistance between ground and terminal No. 1 (Black wire) at trunk knock out switch harness connector. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between trunk knock out switch and ground.
Using a fused jumper wire, connected terminals No. 1 (Black wire) and No. 2 (Violet/Yellow wire) at trunk knock out switch harness connector. Turn ignition on. Using scan tool, check decklid cylinder switch status. If PRESENT is not displayed, go to next step. If PRESENT is displayed, replace decklid knock out switch.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C4. Measure resistance in Violet/Yellow wire between terminal No. 2 at trunk knock out switch harness connector and terminal No. 8 at BCM harness connector C4. (Scheme 7) If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Violet/Yellow wire between trunk knock out switch and BCM.

VTSS Will Not Arm

Check power door locks and remote keyless entry system operation. If power door locks and remote keyless entry system operates properly, go to next step. If power door locks and remote keyless entry system do not operate properly, perform appropriate test under «POWER DOOR LOCKS/RKE SYSTEM»(ref-3597-S11033923832000051100000) .
Connect scan tool to Data Link Connector (DLC). Close all doors and trunk. Turn ignition on. Using scan tool, check all door ajar switches status. If OPEN is displayed for all switches, replace BCM. If OPEN is not displayed for all switches, repair door ajar circuits as necessary. Perform appropriate test under «INTERIOR LIGHTING SYSTEMS»(ref-3597-S12867210972000051100000) .

WINDSHIELD WIPER SYSTEM

CAUTION

Note. After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Note. For windshield wiper system wiring diagrams, see WIRING DIAGRAMS in appropriate WIPER/WASHER SYSTEMS article.

Wiper Park Switch Failure/Wipers Run Continuously

Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, clear Body Control Module (BCM) Diagnostic Trouble Codes (DTCs). Turn ignition off, then back on. Turn wiper switch to each intermittent position, then to low and high. Turn wiper switch off. Using scan tool, retrieve BCM DTCs. If this DTC resets, go to next step. If this DTC does not reset, problem is intermittent.
Turn ignition off. Disconnect wiper motor harness connector. Disconnect BCM harness connector C3. Measure resistance in Tan/Red wire between terminal No. 4 at wiper motor harness connector and terminal No. 3 at BCM harness connector C3. (Scheme 7)and (Scheme 37). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Tan/Red wire between wiper motor and BCM.
Measure resistance between ground and terminal No. 3 (Tan/Red wire) at BCM harness connector C3. If resistance is greater than 100 ohms, go to next step. If resistance is 100 ohms or less, repair short to ground in Tan/Red wire between wiper motor and BCM.
Turn ignition on. Measure voltage at terminal No. 3 (Tan/Red wire) at BCM harness connector C3. If no voltage exists, go to next step. If any voltage exist, repair short to voltage in Tan/Red wire between wiper motor and BCM.
Turn ignition off. Connect a test light between positive battery voltage and terminal No. 5 (Black wire) at wiper motor harness connector. If test light illuminates, go to next step. If test light does not illuminate, repair open in Black wire between wiper motor and ground.
Connect BCM harness connector C3. Turn ignition on. Using scan tool, monitor wiper park switch status. Using a fused jumper wire, momentarily ground and terminal No. 4 (Tan/Red wire) at wiper motor harness connector while observing scan tool display. If wiper park switch input changes on scan tool, replace wiper motor. If wiper park switch input does not change on scan tool, replace BCM.

Scheme 37

Washer Inoperative

Turn ignition on. Using a test light connected to ground, probe input side of fuse No. 5 (10-amp) in junction block. If test light illuminates, go to next step. If test light does not illuminate, repair open in Black/White wire between ignition switch and junction block.
Turn ignition off. Remove and inspect fuse No. 5 (10-amp) in junction block. If fuse is blown, go to next step. If fuse is okay, go to step 6.
Disconnect wiper/washer switch harness connector at multifunction switch. Measure resistance between ground and output side of fuse No. 5 at junction block. If resistance is greater than 100 ohms, go to next step. If resistance is 100 ohms or less, repair short to ground in Dark Blue wire between junction block and multifunction switch.
Ensure wiper switch is off. Measure resistance between terminal No. 1 and all other terminals at wiper/washer switch connector (component side). (Scheme 38) If all resistances are greater than 100 ohms, go to next step. If any resistance is 100 ohms or less, replace wiper/washer switch.
Disconnect Body Control Module (BCM) harness connector C2. Disconnect washer pump harness connector. Measure resistance between ground and terminal No. 7 (Brown wire) at BCM harness connector C2. (Scheme 7) If resistance is than 100 ohms, check wiper motor for internal short and replace if necessary. If resistance is 100 ohms or less, repair short to ground in Brown wire between wiper/washer switch, washer pump and BCM.
Disconnect washer pump harness connector. Connect a test light between positive battery voltage and terminal No. 2 (Black wire) at washer pump harness connector. If test light illuminates, go to next step. If test light does not illuminate, repair open in Black wire between washer pump and ground.
Turn ignition off. Install fuse No. 5 in junction block. Disconnect wiper/washer switch harness connector at multifunction switch. Turn ignition on. Measure voltage at terminal No. 1 (Dark Blue wire) at wiper/washer switch harness connector. (Scheme 39) If battery voltage exists, go to next step. If battery voltage does not exist, repair open in Dark Blue wire between wiper/washer switch and junction block.
Turn ignition off. Measure resistance between terminals No. 1 and 2 at wiper/washer switch (component side) while operating washer switch. (Scheme 38) Resistance should be 5 ohms or less when washer switch is on and greater than 100 ohms when wiper switch is off. If resistance is as specified, go to next step. If resistance is not as specified, replace wiper/washer switch.
Connect wiper/washer switch harness connector at multifunction switch. Turn ignition on. Connect a test light between ground at terminal No. 1 (Brown wire) at washer pump harness connector. Observe test light while operating washer switch. If test light illuminates, replace washer pump. If test light does not illuminate, repair open in Brown wire between washer pump and wiper/washer switch.

Scheme 38

Scheme 39

Washer Runs At All Times With Ignition On

Turn ignition off. Disconnect wiper washer switch at multifunction switch harness connector. Turn ignition on. If washer runs, repair short to voltage in Brown wire between wiper/washer switch, BCM and washer pump. If washer does not run, replace wiper/washer switch.

Wiper Not Working In Low Speed

Turn ignition off. Remove wiper high/low relay from power distribution center. Using a fused jumper wire, connect terminal "A" and "E" at wiper high/low relay socket in power distribution center. (Scheme 22) If wipers operate in low speed, go to next step. If wipers do not operate in low speed, go to step 5.
Remove jumper wire. Install a known-good wiper high/low relay in power distribution center. Turn ignition on. Operate wiper in high and low speed positions. If wipers do not operate properly, go to next step. If wipers operate properly, replace wiper high/low relay.
Turn ignition off. Disconnect wiper/washer switch harness connector at multifunction switch. Measure resistance between terminals No. 1 and 3 at wiper/washer switch (component side). (Scheme 38) Resistance should be 980-1060 ohms with wiper switch in low speed position. If resistance is as specified, go to next step. If resistance is not as specified, replace wiper/washer switch.
Remove wiper high/low relay from power distribution center. Disconnect Body Control Module (BCM) harness connector C3. Measure resistance between ground and terminal No. 12 (Violet wire) at BCM harness connector C3. (Scheme 7) If resistance is greater than 100 ohms, replace BCM. If resistance is 100 ohms or less, repair short to ground in Violet wire between junction block and BCM.
Remove jumper wire. Connect a test light between ground and terminal "A" at wiper high/low relay socket in power distribution center. If test light illuminates, go to next step. If test light does not illuminate, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Disconnect wiper motor harness connector. Measure resistance in Brown/White wire between terminal "E" at wiper high/low relay socket in power distribution center and terminal No. 2 at wiper motor harness connector. (Scheme 22)and (Scheme 37). If resistance is 5 ohms or less, replace wiper motor. If resistance is greater than 5 ohms, repair open in Brown/White wire between wiper motor and power distribution center.

Wiper No Wiper After Wash

Turn ignition on. Operate wipers in all speeds and operate washer pump. If wipers and washer pump operate properly, go to next step. If wipers and washer pump do not operate properly, repair wipers and washer as necessary.
Turn wipers off. Turn ignition off. Disconnect Body Control Module (BCM) harness connector C2. Turn ignition on. Connect a test light between ground and terminal No. 7 (Brown wire) at BCM harness connector C2. (Scheme 7) Operate washers while observing test light. If test light illuminates, replace BCM. If test light does not illuminate, repair open in Brown wire between wiper/washer switch and BCM.

Wiper Not Working At All

Turn ignition off. Remove wiper on/off relay from power distribution center. Using a fused jumper wire, connect terminals "B" and "D" at wiper on/off relay socket in power distribution center. (Scheme 22) If wipers operate, go to next step. If wipers do not operate, go to step 13.
Remove jumper wire. Install wiper on/off relay from power distribution center. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, check intermittent wiper switch status while operating wiper switch through all positions. Voltage on display should increase for 0-8.5 volts as switch is turned from off to high. If voltage is displayed as specified, go to next step. If voltage is not displayed as specified, go to step 8.
Turn ignition off. Remove wiper on/off relay from power distribution center. Connect a test light between ground and terminal "A" at wiper on/off relay socket in power distribution center. (Scheme 22) If test light illuminates, go to next step. If test light does not illuminate, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Connect a test light between ground and terminal "D" at wiper on/off relay socket in power distribution center. If test light illuminates, go to next step. If test light does not illuminate, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Replace wiper on/off relay in power distribution center with known-good unit. Turn ignition on. Operate wipers in all speeds. If wipers do not operate properly, go to next step. If wipers operate properly, replace wiper on/off relay.
Turn ignition off. Remove wiper on/off relay in power distribution center. Disconnect Body Control Module (BCM) harness connector C3. Turn ignition on. Measure voltage at terminal No. 4 (Red/Violet wire) at BCM harness connector C3. (Scheme 7) If no voltage exists, go to next step. If any voltage exists, repair short to voltage in Red/Violet wire between junction block and BCM.
Turn ignition off. Connect BCM harness connector C3. Connect a test light between positive battery voltage and terminal "C" at wiper on/off relay socket in power distribution center. Using scan tool, activate wiper on/off relay. If test light illuminates, problem is intermittent. If test light does not illuminate, replace BCM.
Turn ignition off. Disconnect wiper/washer switch harness connector at multifunction switch. Disconnect Body Control Module (BCM) harness connector C2. Turn ignition on. Measure voltage at terminal No. 8 (Dark Green/Red wire) at BCM harness connector C2. (Scheme 7) If no voltage exists, go to next step. If any voltage exists, repair short to voltage in Dark Green/Red wire between wiper/washer switch and BCM.
Measure voltage at terminal No. 1 (Dark Blue wire) at wiper/washer switch harness connector. (Scheme 39) If battery voltage exists, go to next step. If battery voltage does not exist, repair open in Dark Blue wire between junction block and wiper/washer switch.
Turn ignition off. Measure resistance in Dark Green/Red wire between terminal No. 3 at wiper/washer switch harness connector and terminal No. 8 at BCM harness connector C2. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Dark Green/Red wire between wiper/washer switch and BCM.
Measure resistance between ground and terminal No. 8 (Dark Green/Red wire) at BCM harness connector C2. If resistance is greater than 100 ohms, go to next step. If resistance is 100 ohms or less, repair short to ground in Dark Green/Red wire between wiper/washer switch and BCM.
Connect BCM harness connector C2. Using scan tool, check intermittent wiper switch voltage. Using a test light connected to battery voltage, momentarily connect a test light between positive battery voltage and terminal No. 3 (Dark Green/Red wire) at wiper/washer switch harness connector while observing scan tool display. Voltage should change from zero volts when test light is not connected to greater than 10 volts when test light is connected. If scan tool display responds as specified, problem is intermittent. If scan tool display does not respond as specified, replace BCM.
Remove jumper wire. Connect a test light between ground and terminal "D" at wiper on/off relay socket in power distribution center. If test light illuminates, go to next step. If test light does not illuminate, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Connect a test light between ground and terminal "A" at wiper on/off relay socket in power distribution center. If test light illuminates, go to next step. If test light does not illuminate, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Replace wiper on/off relay in power distribution center with known-good unit. Turn ignition on. Operate wipers in low and high speeds. If wipers do not operate properly, go to next step. If wipers operate properly, replace wiper on/off relay.
Turn ignition off. Disconnect wiper motor harness connector. Connect a test light between positive battery voltage and terminal No. 5 (Black wire) at wiper motor harness connector. (Scheme 37) If test light illuminates, go to next step. If test light does not illuminate, repair open in Black wire between wiper motor and ground.
Remove wiper on/off relay and wiper high/low relay from power distribution center. Measure resistance in Dark Green wire between terminal "B" at wiper on/off relay socket in power distribution center and terminal "B" at wiper high/low relay socket in power distribution center. (Scheme 22) If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Dark Green wire between wiper on/off relay and wiper high/low relay.
Measure resistance between ground and terminal "B" at wiper on/off relay socket in power distribution center. If resistance is greater than 10 ohms, go to next step. If resistance is 10 ohms or less, repair short to ground in Dark Green wire between wiper on/off relay and wiper high/low relay.
Install wiper on/off relay and wiper high/low relay. Turn wipers on low. Connect a test light between ground and terminal No. 2 (Brown/White wire) at wiper motor harness connector. If test light illuminates, go to next step. If test light does not illuminate, repair open in Brown/White wire between wiper motor and junction block.
Turn wipers on high. Connect a test light between ground and terminal No. 1 (Red/Yellow wire) at wiper motor harness connector. If test light illuminates, replace wiper motor. If test light does not illuminate, repair open in Red/Yellow wire between wiper motor and junction block.

Wiper Not Working In High Speed

Turn ignition off. Remove wiper high/low relay from power distribution center. Using a fused jumper wire, connect terminals "A" and "D" at wiper high/low relay socket in power distribution center. (Scheme 22) If wipers operate in high speed, go to next step. If wipers do not operate in high speed, go to step 6.
Remove jumper wire. Install a known-good wiper high/low relay in power distribution center. Turn ignition on. Operate wiper in high and low speed positions. If wipers does not operate properly, go to next step. If wipers operate properly, replace wiper high/low relay.
Turn ignition off. Disconnect wiper/washer switch harness connector at multifunction switch. Measure resistance between terminals No. 1 and 3 at wiper/washer switch (component side). (Scheme 38) Resistance should be 480-540 ohms with wiper switch in high speed position. If resistance is as specified, go to next step. If resistance is not as specified, replace wiper/washer switch.
Remove wiper high/low relay from power distribution center. Disconnect Body Control Module (BCM) harness connector C3. Turn ignition on. Measure voltage at terminal No. 12 (Violet wire) at BCM harness connector C3. (Scheme 7) If no voltage exists, go to next step. If any voltage exists, repair short to voltage in Violet wire between junction block and BCM.
Turn ignition off. Measure resistance in Violet wire between terminal "C" at wiper high/low relay socket in power distribution center and terminal No. 12 at BCM harness connector C3. If resistance is 5 ohms or less, replace BCM. If resistance is greater than 5 ohms, repair open in Violet wire between high/low relay and BCM.
Remove jumper wire. Connect a test light between ground and terminal "A" at wiper high/low relay socket in power distribution center. If test light illuminates, go to next step. If test light does not illuminate, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
Disconnect wiper motor harness connector. Measure resistance in Red/Yellow wire between terminal "D" at wiper high/low relay socket in power distribution center and terminal No. 1 at wiper motor harness connector. (Scheme 22)and (Scheme 37). If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Red/Yellow wire between wiper motor and power distribution center.
Measure resistance between ground and terminal No. 1 (Red/Yellow wire) at wiper motor harness connector. If resistance is greater than 100 ohms, go to next step. If resistance is 100 ohms or less, repair short to ground in Red/Yellow wire between wiper motor and power distribution center.
Measure voltage at terminal No. 1 (Red/Yellow wire) at wiper motor harness connector. If no voltage exists, replace wiper motor. If any voltage exists, repair short to voltage in Red/Yellow wire between wiper motor and power distribution center.

Wiper Runs All The Time With Ignition On

Install a known-good wiper on/off relay in power distribution center. Turn ignition on. If wipers run, go to next step. If wipers do not run, replace wiper on/off relay.
Turn ignition off. Remove wiper on/off relay and wiper high/low relay from power distribution center. Turn ignition on. Measure voltage at terminal "B" at both relay sockets in power distribution center. (Scheme 22) If voltage does not exist at either terminal, go to next step. If voltage exists at either terminal, repair short to voltage in Dark Green wire between wiper on/off relay and wiper high/low relay.
Turn ignition off. Disconnect wiper motor harness connector. Turn ignition on. Measure voltage at terminal No. 1 (Red/Yellow wire) at wiper motor harness connector. (Scheme 37) If no voltage exists, go to next step. If any voltage exists, repair short to voltage in Red/Yellow wire between junction block and wiper motor.
Measure voltage at terminal No. 2 (Brown/White wire) at wiper motor harness connector. If no voltage exists, go to next step. If any voltage exists, repair short to voltage in Brown/White wire between junction block and wiper motor.
Turn ignition off. Disconnect Body Control Module (BCM) harness connector C3. Measure resistance between ground and terminal "C" at wiper on/off relay socket at power distribution center. If resistance is greater than 100 ohms, replace BCM. If resistance is 100 ohms or less, repair short to voltage in Red/Violet wire between wiper on/off relay and BCM.

MEMORY HEATED SEAT/MIRROR MODULE (MHSMM)

Memory Heated Seat/Mirror Module (MHSMM) is located under front of driver's seat. see scheme 4 Disconnect negative battery cable. If necessary, remove seat from vehicle. Remove 2 screws attaching MHSMM to seat frame. Disconnect electrical connectors from MHSMM and remove from seat. To install, reverse removal procedure.

Note. If Powertrain Control Module (PCM) was replaced, the correct vehicle mileage and Vehicle Identification Number (VIN) must be programmed into the PCM to prevent DTCs from being set in Anti-Lock Brake System (ABS) module and Occupant Restraint Controller (ORC) module. If replacing Powertrain Control Module (PCM) on models equipped with a Smart Key Immobilizer Module (SKIM), secret key data must also be updated to enable engine starting. To program PCM, see POWERTRAIN CONTROL MODULE under PROGRAMMING.

SENTRY KEY IMMOBILIZER MODULE

WARNING

Deactivate air bag system before performing any service operation. See appropriate AIR BAG RESTRAINT SYSTEMS article. Do not apply electrical power to any component on steering column without first deactivating air bag system. Air bag may deploy.

Note. If Sentry Key Immobilizer Module (SKIM) was replaced, SKIM and at least 2 sentry keys must be programmed. To program SKIM, see SKIM MODULE under PROGRAMMING. To program sentry keys, see SENTRY KEYS under PROGRAMMING.

Note. If Transmission Control Module (TCM) was replaced, TCM must be programmed. To program TCM, see TRANSMISSION CONTROL MODULE under PROGRAMMING.

Body Control Modules: Other Dodge Intrepid II

MECHANICAL INSTRUMENT CLUSTER (MIC)

MEMORY HEATED SEAT & MIRROR SYSTEM

OVERHEAD TRAVEL INFORMATION SYSTEM (OTIS)

PCI BUS SYSTEM

VEHICLE THEFT SECURITY SYSTEM (VTSS)

PROGRAMMING

A/C CONTROL HEAD

MEMORY HEATED SEAT/MIRROR MODULE

POWERTRAIN CONTROL MODULE

REMOTE TRANSMITTER

Customer Learn Method

Memory Positions

SENTRY KEYS

SKIM MODULE

TRANSMISSION CONTROL MODULE

CHIME SYSTEMS

Chime Inoperative At All Times

Chime Inoperative With Seat Belt Unfastened

Scheme 7

Chime Sounds With Driver's Door Open (Ignition Key Removed)

Chime Sounds With Seat Belt Fastened

COMMUNICATIONS

ATC Messages Not Received

Scheme 8

Battery Voltage To Module Disconnected

Scheme 9

EATX Bus Communication Failure

EEPROM Constant Checksum Failure

Internal Base/Premium Select Failure

MHSMM Messages Not Received

Scheme 10

MIC Message Not Received

Scheme 11

No PCI Messages From CD Changer

OTIS Messages Not Received

Post Failure

SBEC Bus Communication Failure

SKIM Messages Not Received

Bus +/- Signal Open From SKIM

Scheme 12

Bus +/- Signals Open From Or Blank Screen On OTIS

Scheme 13

Fused Ignition Switch Output To BCM

Scheme 14

No Response From Body Control Module (Bus +/- Signal Open)

Scheme 15

Scheme 16

No Response From CAB

Scheme 17

No Response From ORC

Scheme 18

No Response From Powertrain Control Module (PCI Bus)

Scheme 19

No Response From Radio

Scheme 20

No Response From Transmission Control Module (TCM)

Scheme 21

Scheme 22

Odometer Displays NO BUS

PCI Bus Communication Failure

ELECTRICALLY HEATED SYSTEMS

Driver Heated Seat Switch Open/Shorted To Ground

Scheme 23

Driver Heated Seat Switch Stuck In High/Low State

Driver Seat Heat Output Open

Scheme 24

Driver Seat Heat Output Short To Gnd

Driver Thermistor Out Of Range High

Driver Thermistor Out Of Range Low

Passenger Heated Seat Switch Open/Shorted To Ground

Passenger Heated Seat Switch Stuck In High/Low State

Passenger Seat Heat Output Open

Passenger Seat Heat Output Short To Gnd

Passenger Thermistor Out Of Range High

Passenger Thermistor Out Of Range Low

Rear Window Defogger Inoperative (Manual A/C)

Rear Window Defogger Inoperative W/ATC

EXTERIOR LIGHTING SYSTEMS

Headlight Switch Input Failure