Diagnosis Procedure

Check BCM power supply and ground circuit.

Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES 

GO TO STEP 2  .

NO 

Repair or replace the malfunctioning parts.

Check power window main 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 result normal?

YES 

Check intermittent incident. Refer to INTERMITTENT INCIDENT .

NO 

GO TO STEP 1.