Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK FUEL LID DOOR LOCK ACTUATOR INPUT SIGNAL 
   1. Turn ignition switch OFF.
   2. Disconnect fuel lid door lock actuator connector.
   3. Check voltage between fuel lid door lock actuator harness connector and ground.

      (+)		(-)	Condition		Voltage (Approx.)
      Fuel lid door lock actuator
      Connector	Terminal
      B20	1	Ground	Door lock and unlock switch	Unlock	12 V
      	2			Lock

      Is the inspection result normal? 

      YES: Replace fuel lid door lock actuator. Refer to "REMOVAL AND INSTALLATION ".

      NO: GO TO 2.

2. CHECK FUEL LID DOOR LOCK ACTUATOR CIRCUIT 
   1. Disconnect BCM, all door lock actuators connector.
   2. Check continuity between BCM harness connector and fuel lid door lock actuator harness connector.

      BCM		Fuel lid door lock actuator		Continuity
      Connector	Terminal	Connector	Terminal
      M81	135	B20	2	Yes
      	137		1

   3. Check continuity between BCM harness connector and ground.

      BCM		Ground	Continuity
      Connector	Terminal
      M81	135		No
      	137

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair or replace harness.

3. CHECK BCM OUTPUT SIGNAL 
   1. Connect BCM connector.
   2. Check voltage between BCM harness connector and ground.

      (+)		(-)	Condition		Voltage (Approx.)
      BCM
      Connector	Terminal
      M81	135	Ground	Door lock and unlock switch	Lock	12 V
      	137			Unlock

      Is the inspection result normal? 

      YES: Check for internal short of each door lock actuator.

      NO: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".