Diagnosis Procedure
- CHECK BCM POWER SUPPLY AND GROUND CIRCUIT
Check BCM power supply and ground circuit.
Refer to Diagnosis Procedure .
Is the inspection result normal?
YES
GO TO 2.
NO
Repair or replace the malfunctioning parts.
- CHECK POWER WINDOW MAIN SWITCH POWER SUPPLY AND GROUND CIRCUIT
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 MAIN SWITCH SERIAL LINK CIRCUIT
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
Confirm the operation again.
Is the inspection result normal?
YES
Check intermittent incident. Refer to Intermittent Incident .
NO
GO TO 1.