Test C: All Door Locks Are Inoperative

PINPOINT TEST C: ALL DOOR LOCKS ARE INOPERATIVE

C1-C2:

C2-C5:

C5-C6:

Normal Operation
The central junction box (CJB) supplies voltage to the LH door lock control switch and the RH door lock control switch through circuit 1524 (DB). The driver door module (DDM) receives lock or unlock requests from the door lock control switches on circuits 119 (PK/YE) and circuit 120 (PK/LG). The DDM supplies voltage on circuit 117 (PK/BK) to the door lock actuators if a lock command is received and ground if an unlock command is received.

Possible Causes
- fuse
- circuit 117 (PK/BK) open
- circuit 119 (PK/YE) short to voltage or short to ground
- circuit 120 (PK/LG) short to voltage or short to ground
- circuit 1524 (DB) open
- door lock control switch
- DDM