Preliminary Procedure
- Verify customer's complaint by operating power windows. Check window alignment and window mounting. Check for window frame interference or damaged switches. Check for blown fuse(s), 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), go to TEST A: NO COMMUNICATION WITH DDM
under SYSTEM TESTING. If NGS tester displays NO RESPONSE/NOT EQUIPPED for Lighting Control Module (LCM), go to TEST B: NO COMMUNICATION WITH LCM
under SYSTEM TESTING.
- If NGS tester displays SYSTEM PASSED for DDM, retrieve and record continuous DTCs using NGS tester. Erase continuous DTCs. Perform DDM self-test diagnostics using NGS tester. If DTC B1342 or DTC B1549 is retrieved, go to appropriate DTC test under DIAGNOSTIC TESTING
. If any other DDM DTC is retrieved, see DRIVER DOOR MODULE (DDM) DTC DEFINITIONS
table to continue diagnosis. If no DTCs are retrieved, perform appropriate test under SYSTEM TESTING
.
- If NGS tester displays SYSTEM PASSED for LCM, retrieve and record continuous DTCs using NGS tester. Erase continuous DTCs. Perform LCM self-test diagnostics using NGS tester. If any LCM DTC is retrieved, see LIGHTING CONTROL MODULE (LCM) DTC DEFINITIONS
table to continue diagnosis. If no DTCs are retrieved, perform appropriate 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 Switch Activated For More Than 2 Minutes) |
|
| B1517 (Seat Occupied Switch Short To Battery) |
|
| B1525 (Keyless Entry Switch Activated For More Than 2 Minutes) |
|
| B1549 (Master Window Switch Short To Battery) |
|
| B1553 (Decklid Release Circuit Activated For More Than 2 Minutes) |
|
| 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 |
| B1462 |
LCM |
Seat Belt Switch Circuit Failure |
| B1555 |
LCM |
Ignition RUN/START Circuit Failure |
| B1566 |
LCM |
Door Ajar Circuit Short To Ground |
| B1577 |
LCM |
Parking Light Input Circuit |
| Short To Voltage |
| B1581 |
LCM |
Dimmer Increase Circuit |
| Short To Voltage |
| B1585 |
LCM |
Dimmer Decrease Circuit |
| Short To Voltage |
| B1679 |
LCM |
Panic Alarm Input Circuit |
| Short To Voltage |
| B1687 |
LCM |
Dome Light Input Circuit |
| Short To Voltage |
| 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 Voltage |
| B1873 |
LCM |
Turn Signal/Hazard Power |
| Feed Circuit Short To Ground |