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 CKT 914 or CKT 915=ALL MODULES NO RESP/NOT EQUIP, see MODULE COMMUNICATIONS NETWORK article to diagnosis network concern. 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 DDM is not listed for a communication concern, turn ignition switch to RUN position. Ensure all doors are closed. Using NGS tester, retrieve and record continuous DTCs. Erase continuous DTCs. Perform DDM self-test diagnostics using NGS tester. If DDM exits diagnostic state during self-test and returns to normal operation state, go to TEST A: NO COMMUNICATION WITH DDM
under SYSTEM TESTING.
- If DDM DTC B1342 is retrieved, replace driver door module and repeat DDM self-test diagnostics. If DDM DTC B1402 or B1549 is retrieved, go to TEST B: SINGLE WINDOW IS INOPERATIVE
under SYSTEM 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
.
DRIVER DOOR MODULE (DDM) DTC DEFINITIONS
| DTC |
Source Module |
Description |
| B1322 |
DDM |
Door Ajar Ckt Failure |
| B1342 |
DDM |
ECU Defective |
| B1396 |
DDM |
Power Door Lock Ckt Short To Battery |
| B1397 |
DDM |
Power Door Unlock Ckt Short To Battery |
| B1402 |
DDM |
Driver Door Window Switch Down Ckt Failure |
| B1529 |
DDM |
Memory Set Switch Ckt Short To Battery |
| B1533 |
DDM |
Memory "1" Switch Ckt Short To Battery |
| B1537 |
DDM |
Memory "2" Switch Short To Battery |
| B1545 |
DDM |
Power Seat Switch Short To Battery |
| B1549 |
DDM |
Power Window Switch Short To Battery |
| B1553 |
DDM |
Decklid Release Ckt Short To Battery |
| B1566 |
DDM |
Door Ajar Ckt Short To Ground |
| B2338 |
DDM |
Mirror Switch Assembly Ckt Short To Ground |
| B2368 |
DDM |
Memory LED Output Short To Battery |
| B2373 |
DDM |
LED No. 1 Ckt Short To Battery |
| B2425 |
DDM |
Remote Keyless Entry Out Of Synchronization |
| C1920 |
DDM |
LED No. 1 Ckt Failure |
| U1041 |
ABS |
SCP Invalid/Missing Data For Vehicle Speed |
| U1059 |
PCM |
SCP Invalid/Missing Data For Trans. Range |
| U1135 |
LCM |
SCP Invalid/Missing Data For Ignition Switch |
| U1262 |
N/A |
SCP Communication Bus Fault |