Diagnosis Procedure

Check that DTC is not detected with left front door control unit. Refer to DTC INDEX .

Is DTC detected?

YES 

Perform diagnosis procedure on the detected DTC. Refer to DTC INDEX .

NO 

GO TO STEP 2  .

Check front power window motor (driver side) 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.

Check power window main switch.

Refer to COMPONENT FUNCTION CHECK .

Is the inspection result normal?

YES 

GO TO STEP 4  .

NO 

Repair or replace the malfunctioning parts.

Check front power window motor (driver side).

Refer to COMPONENT FUNCTION CHECK .

Is the inspection result normal?

YES 

GO TO STEP 5  .

NO 

Repair or replace the malfunctioning parts.

Replace front power window motor (driver side).

Refer to REMOVAL AND INSTALLATION .

Is the inspection result normal?

YES 

GO TO STEP 6  .

NO 

Replace left front door control unit. Refer to REMOVAL AND INSTALLATION .

Confirm the operation again.

Is the inspection result normal?

YES 

Check intermittent incident. Refer to INTERMITTENT INCIDENT .

NO 

GO TO STEP   1  .