Power Window Main Switch

POWER SUPPLY AND GROUND CIRCUIT


POWER WINDOW MAIN SWITCH : Diagnosis Procedure

1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window main switch connector.
3. Turn ignition switch ON.
4. Check voltage between power window main switch harness connector and ground.





Is the measurement value within the specification?
YES - GO TO 2.
NO - GO TO 3.
2.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between power window main switch harness connector and ground.





Is the inspection result normal?
YES - INSPECTION END
NO - Repair or replace harness.
3.CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM harness connector and power window main switch harness connector.





4. Check continuity between BCM harness connector and ground.





Is the inspection result normal?
YES - Replace BCM. Refer to Removal and Installation.
NO - Repair or replace harness.