One Door Fails to Lock/Unlock From Either Switch

Tests 1 - 4:

Tests 5 - 7:

SYMPTOM
ONE DOOR FAILS TO LOCK/UNLOCK FROM EITHER SWITCH

POSSIBLE CAUSES
- Passenger door unlock relay
- Passenger door lock/unlock motor
- Passenger door unlock relay output circuit open
- Door lock relay output circuit open
- Driver door unlock relay
- Driver door lock/unlock motor
- Driver door unlock relay output circuit open
- Door lock relay output circuit open