Preliminary Procedure
- Verify customer's complaint by operating remote keyless entry system. Check for damaged door latch, or binding lock mechanism. Check for blown circuit breaker, loose or corroded connectors, or damaged wiring harness. Repair or replace components as necessary.
- If all components are okay, connect NGS tester to DLC located below instrument panel. Using NGS tester, perform DATA LINK DIAGNOSTIC TEST. If NGS tester displays NO RESPONSE/NOT EQUIPPED for Driver Door Module (DDM), perform TEST A: NO COMMUNICATION WITH DDM
under SYSTEM TESTING. If NGS tester displays NO RESPONSE/NOT EQUIPPED for Lighting Control Module (LCM), perform TEST B: NO COMMUNICATION WITH LCM
under SYSTEM TESTING.
- If NGS tester displays SYSTEM PASSED, retrieve and record continuous DTCs. Erase continuous DTCs. Perform self-test diagnostics for DDM and LCM using NGS tester. If DDM DTCs are retrieved, see DRIVER DOOR MODULE (DDM) DTC DEFINITIONS table to continue diagnosis. If LCM DTCs are retrieved, see LIGHTING CONTROL MODULE (LCM) DTC DEFINITIONS
table to continue diagnosis. If no DTCs are retrieved, perform appropriate symptom test under SYSTEM TESTING
.
DRIVER DOOR MODULE (DDM) DTC DEFINITIONS
| DTC |
Proceed To |
| B1322 (Driver Door Ajar Circuit Short To Ground) |
|
| B1342 (ECU Defective) |
|
| B1396 (Driver Or Passenger Door Lock Short To Battery) |
|
| B1517 (Seat Occupied Switch Short To Battery) |
|
| B1525 (Keyless Entry Short To Battery) |
|
| B1549 (Master Window Switch Short To Battery) |
|
| B1553 (Decklid Release Short To Battery) |
|
| B1751 (Park Neutral Switch Short To Battery) |
|
| B2425 (Remote Keyless Entry Out Of Synchronization) |
|
LIGHTING CONTROL MODULE (LCM) DTC DEFINITIONS
| DTC |
Source Module |
Description |
| B1312 |
LCM |
Headlight Input Circuit Short To Voltage |
| B1317 |
LCM |
Battery Voltage High |
| B1318 |
LCM |
Battery Voltage Low |
| B1322 |
LCM |
Left Front Door Ajar Circuit Short To Ground |
| B1334 |
LCM |
Luggage Compartment Door Ajar Circuit Short To Ground |
| B1340 |
LCM |
Chime Input Request Short To Ground |
| B1342 |
LCM |
ECU Defective |
| B1345 |
LCM |
Heated Backlite Input Short To Ground |
| B1352 |
LCM |
Ignition Key-In Circuit Failure |
| B1359 |
LCM |
Ignition RUN/ACC Circuit Failure |
| B1396 |
LCM |
Power Door Lock Circuit Short To Voltage |
| B1397 |
LCM |
Power Door Unlock Circuit Short To Voltage |
| B1445 |
LCM |
Door Handle Switch Circuit Short To Ground |
| B1464 |
LCM |
Seat Belt Switch Circuit Short To Battery |
| B1555 |
LCM |
Ignition RUN/START Circuit Failure |
| B1566 |
LCM |
Door Ajar Circuit Short To Ground |
| B1577 |
LCM |
Parking Light Input Short To Voltage |
| B1581 |
LCM |
Dimmer Increase Input Circuit Short To Battery |
| B1585 |
LCM |
Dimmer Decrease Input Circuit Short To Battery |
| B1679 |
LCM |
Panic Alarm Input Short To Battery |
| B1687 |
LCM |
Dome Light Input Short To Battery |
| B1689 |
LCM |
Autolamp Delay Circuit Failure |
| B1692 |
LCM |
Autolamp Delay Circuit Short To Ground |
| B1693 |
LCM |
Autolamp On Circuit Failure |
| B1695 |
LCM |
Autolamp On Circuit Short To Battery |
| B1873 |
LCM |
Turn Signal/Hazard Power Feed Short To Ground |