Passenger's Door Lock Link Switch
Door lock link switch is located inside power door lock actuator. Remove door trim panel. Disconnect door lock actuator 4-pin connector. Check continuity between terminals "C" (Brown/Yellow wire) and "D" (Black wire) of door lock actuator connector. With door locked, continuity should not exist. With door unlocked, continuity should exist. If continuity is not as specified, replace door lock actuator.