Test A: All Door Locks Are Inoperative From One Switch

PINPOINT TEST A: ALL DOOR LOCKS ARE INOPERATIVE FROM ONE SWITCH

A1-A2:

A3:

Normal Operation
The smart junction box (SJB) receives from the LH or RH door lock control switch a ground signal through circuit 1761 (PK/YE) to lock or through circuit 1762 (PK/LG) to unlock all the doors. The door lock control switches are grounded through circuit 1205 (BK).

Possible Causes
- circuit 1205 (BK) open
- circuit 1761 (PK/YE) open or short to ground
- circuit 1762 (PK/LG) open or short to ground
- door lock control switch