Diagnosis Procedure

Check BCM power supply and ground circuit.

Refer to REMOVAL AND INSTALLATION .

Is the inspection result normal?

YES 

GO TO STEP 2  .

NO 

Repair or replace the malfunctioning parts.

Check main power window and door lock/unlock switch power supply and ground circuit.

Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES 

GO TO STEP 3  .

NO 

Repair or replace the malfunctioning parts.

Confirm the operation again.

Is the inspection result normal?

YES 

Check intermittent incident. Refer to INTERMITTENT INCIDENT .

NO 

GO TO STEP  1.