Doors Fail to Lock and Unlock From Either Door Lock Switch

Tests 1 - 3:

Tests 4 - 9:

Tests 10 - 12:

SYMPTOM
DOORS FAIL TO LOCK AND UNLOCK FROM EITHER DOOR LOCK SWITCH

POSSIBLE CAUSES
- Fuse # 13 open
- Fused B+ open
- Fused B+ open to switch
- Passenger door lock switch output wire open
- Passenger door unlock switch output wire open
- Central timer module - driver open
- Door lock driver circuit open
- Door unlock driver circuit open
- Passenger door window/lock switch open - door lock switch output open
- Passenger door window/lock switch open - door unlock switch output open
- Central timer module - door lock or unlock open