Test F: The Door Locks Operate Only One Way

PINPOINT TEST F: THE DOOR LOCKS OPERATE ONLY ONE WAY

F1-F2:

F2 Continued:

F3-F4:

Normal Operation
The vehicle security module monitors circuits 119 (PK/YE), lock, and 120 (PK/LG), unlock, for continuity to ground. When circuit 119 (PK/YE) is grounded through the door lock control switch the vehicle security module sends voltage to the door lock actuators to lock all the doors. When circuit 120 (PK/LG) is grounded through the door lock control switch the vehicle security module sends voltage to the door lock actuators to unlock all the doors.

Possible Causes
- circuit 119 (PK/YE) open or short to ground
- circuit 120 (PK/LG) open or short to ground
- door lock control switch
- vehicle security module