Test B

PINPOINT TEST B: ALL DOOR LOCKS ARE INOPERATIVE - FROM THE DRIVER DOOR LOCK CONTROL SWITCH

Test B1-B3:

Test B4-B5:

Normal Operation
The driver door lock control switch supplies a ground signal through circuit 1205 (BK) to the SJB when the LOCK or UNLOCK switch is pressed. When the SJB receives ground through circuit 1316 (WH/VT), the SJB locks the doors by operating the door lock relay (part of the SJB). When the SJB receives ground through circuit 1317 (DB/LG), the SJB unlocks the doors by operating the driver door unlock relay (part of the SJB) and the passenger door unlock relay (part of the SJB).

Possible Causes
- SJB DTC B1309 driver door lock switch circuit short to ground
- SJB DTC B1341 driver door unlock switch circuit short to ground
- circuit 1205 (BK) open
- circuit 1316 (WH/VT) open or shorted to ground
- circuit 1317 (DB/LG) open or shorted to ground
- driver door lock control switch
- SJB