1.CHECK POWER SUPPLY AND GROUND CIRCUIT Check power supply and ground circuit. Refer to Diagnosis Procedure. Is the inspection result normal? YES>>GO TO 2.
NO>>Repair or replace the malfunctioning parts.
2.CHECK DOOR LOCK AND UNLOCK SWITCH
Check door lock and unlock switch.

- Driver side: Refer to Component Function Check.
- Passenger side: Refer to Component Function Check.

Is the inspection result normal?
YES>>GO TO 3.
NO>>Repair or replace the malfunctioning parts.
3.CHECK DOOR LOCK ACTUATOR
Check door lock actuator (driver side).
Refer to Component Function Check.
Is the inspection result normal?
YES>>GO TO 4.
NO>>Repair or replace the malfunctioning parts.
4.CONFIRM THE OPERATION
Confirm the operation again.
Is the result normal?
YES>>Check intermittent incident. Refer to Intermittent Incident.
NO>>GO TO 1.