Diagnosis Procedure

Check BCM power supply and ground circuit.

Refer to BCM : Removal and Installation . Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace the malfunctioning parts.

Check power window switch power supply and ground circuit.

Refer to Diagnosis Procedure . Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace the malfunctioning parts.

Check power window serial link circuit.

Refer to Component Function Check . Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace the malfunctioning parts.

Confirm the operation again.

Is the result normal?

YES>>

Check intermittent incident. Refer to Inspection .

NO>>

GO TO 1.