Test B: All Door Locks Are Inoperative

PINPOINT TEST B: ALL DOOR LOCKS ARE INOPERATIVE

B1-B2:

B3-B5:

B5-B7:

Normal Operation
The driver door lock control switch is grounded on circuit 57 (BK) and the passenger door lock control switch is grounded on circuit 570 (BK/WH). The door lock control switches supply a ground signal to the smart junction box (SJB). When the SJB receives a door lock control switch lock command through circuit 1088 (PK/WH), it supplies voltage to the door lock actuators through circuit 117 (PK/BK) while grounding circuit 118 (PK/OG) and 163 (RD/OG) to lock all the doors. When the SJB receives a door lock control switch unlock command through circuit 1088 (PK/WH), it supplies voltage to the door lock actuators through circuit 118 (PK/OG) and circuit 163 (RD/OG) while grounding circuit 117 (PK/BK) to unlock all the doors. The driver door lock control switch and passenger door lock control switch circuits are spliced together within the wiring harness.

Possible Causes
- circuit 57 (BK) open
- circuit 117 (PK/BK) open or short to ground
- circuit 1088 (PK/WH) open or short to ground
- door lock control switches
- SJB