Inspection and Verification
- Verify the customer concern by operating the system.
- Visually inspect for obvious signs of mechanical and electrical damage. VISUAL INSPECTION CHART Electrical Wiring harness Loose or corroded connections Central junction box (CJB) fuse: 231 (10A) Lamp(s) Relay(s) Headlamp switch Instrument cluster Dimmer switch FEM REM
- If the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle: check that the program card is correctly installed. check the connections to the vehicle. check the ignition switch position.
- If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool manual.
- Carry out the DATA LINK DIAGNOSTICS test. If the diagnostic tool responds with: CKT914, CKT915 or CKT70 =ALL ECUS NO RESP/NOT EQUIP, refer to «MODULE COMMUNICATIONS NETWORK»(ref-204591) . NO RESP/NOT EQUIP for FEM, refer to «MULTIFUNCTION ELECTRONIC MODULE»(ref-204602) . NO RESP/NOT EQUIP for REM, refer to «MULTIFUNCTION ELECTRONIC MODULE»(ref-204602) . NO RESP/NOT EQUIP for instrument cluster, refer to «INSTRUMENT CLUSTER»(ref-204577) . SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the FEM.
- If the DTCs retrieved are related to the concern, go to the «FEM Diagnostic Trouble Code (DTC) Index»(ref-204586-S22069122662005111300000) , the «REM Diagnostic Trouble Code (DTC) Index»(ref-204586-S12872748212005111300000) or the «INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE (DTC) INDEX»(ref-204577-S24567488312005111300000) .
- If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics.
FEM Diagnostic Trouble Code (DTC) Index
| DTC | Description | Source | Action |
|---|---|---|---|
| B1319 | Driver Door Ajar Circuit Failure | FEM | Go To PINPOINT TEST F: GLOVE COMPARTMENT OR MAP LAMP IS INOPERATIVE . |
| B1327 | Passenger Door Ajar Circuit Failure | FEM | Go To PINPOINT TEST F: GLOVE COMPARTMENT OR MAP LAMP IS INOPERATIVE . |
| B1342 | ECU is Defective | FEM | INSTALL a new FEM. REFER to MULTIFUNCTION ELECTRONIC MODULE . |
| B2477 | Module Configuration Failure | FEM | REFER to MODULE CONFIGURATION . |
FEM DIAGNOSTIC TROUBLE CODE INDEX
REM Diagnostic Trouble Code (DTC) Index
| DTC | Description | Source | Action |
|---|---|---|---|
| B1331 | Decklid Ajar Rear Door Circuit Failure | REM | Go To PINPOINT TEST H: LUGGAGE COMPARTMENT LID LAMP INOPERATIVE WITH LUGGAGE COMPARTMENT LID OPEN . |
| B1342 | ECU is Defective | REM | INSTALL a new REM. REFER to MULTIFUNCTION ELECTRONIC MODULE . |
| B2477 | Module Configuration Failure | REM | REFER to MODULE CONFIGURATION . |
REM DIAGNOSTIC TROUBLE CODE INDEX
Instrument Cluster Diagnostic Code (DTC) Index
| DTC | Description | Source | Action |
|---|---|---|---|
| B1246 | Dim Panel Potentiometer Switch Circuit Failure | Instrument Cluster | Go To PINPOINT TEST I: THE DEMAND LIGHTING IS INOPERATIVE . |
| B1342 | ECU is Defective | Instrument Cluster | INSTALL a new Instrument Cluster. REFER to INSTRUMENT CLUSTER . |
| B2477 | Module Configuration Failure | Instrument Cluster | REFER to INSTRUMENT CLUSTER . |
INSTRUMENT CLUSTER DIAGNOSTIC CODE INDEX
Symptom Chart
| Condition | Possible Sources | Action |
|---|---|---|
| No communication with the front electronic module (FEM) | Central junction box (CJB) fuses: 233 (10A). 220 (10A). 230 (5A). Circuitry. FEM. | REFER to MULTIFUNCTION ELECTRONIC MODULE . |
| No communication with the rear electronic module (REM) | Battery junction box (BJB) fuses: 423 (5A). 441 (15A). Circuitry. REM. | REFER to MULTIFUNCTION ELECTRONIC MODULE . |
| No communication with the instrument cluster | Circuitry. Instrument cluster | REFER to INSTRUMENT CLUSTER . |
| The interior lamps are inoperative | CJB fuse. 231 (10A). Circuits. FEM. | GO to PINPOINT TEST A: THE INTERIOR LAMPS ARE INOPERATIVE . |
| An individual interior lamp is inoperative | CJB. Lamps. Switch(es). Circuitry. | GO to PINPOINT TEST B: AN INDIVIDUAL INTERIOR LAMP IS INOPERATIVE . |
| The interior lamps stay on continuously | Door ajar switches. CJB. Circuits. Map/dome lamp switches. FEM. | GO to PINPOINT TEST C: THE INTERIOR LAMPS STAY ON CONTINUOUSLY . |
| The left map, right map or rear dome lamp stays on continuously | Switches. Circuits. | GO to PINPOINT TEST D: THE LEFT MAP, RIGHT MAP STAYS ON CONTINUOUSLY . |
| The interior lamps do not turn on with one door open | Door ajar switches. Circuits. FEM. | GO to PINPOINT TEST E: THE INTERIOR LAMPS DO NOT TURN ON WITH ONE DOOR OPEN . |
| Glove compartment, map or dome lamp is inoperative | Circuitry. Lamps. Switches. | GO to PINPOINT TEST F: GLOVE COMPARTMENT OR MAP LAMP IS INOPERATIVE . |
| Luggage compartment lid lamp stays on continuously | Circuitry. Luggage compartment lid ajar switch. Circuitry. REM. | GO to PINPOINT TEST G: THE LUGGAGE COMPARTMENT LAMP STAYS ON CONTINUOUSLY . |
| Luggage compartment lid lamp inoperative with luggage compartment open | Circuitry. Lamp. Luggage compartment lid ajar switch. REM. | GO to PINPOINT TEST H: LUGGAGE COMPARTMENT LID LAMP INOPERATIVE WITH LUGGAGE COMPARTMENT LID OPEN . |
| The demand lighting is inoperative | Circuitry. Lamp. Instrument panel dimmer switch Instrument cluster | GO to PINPOINT TEST I: THE DEMAND LIGHTING IS INOPERATIVE . |
SYMPTOM CHART
