Back Door Control Unit

POWER SUPPLY AND GROUND CIRCUIT


BACK DOOR CONTROL UNIT : Diagnosis Procedure

1.CHECK FUSE
Check that the following fuse is not fusing.





Is the fuse fusing?
YES - Replace the blown fuse after repairing the affected circuit if a fuse is blown.
NO - GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect back door control unit connector.
3. Check voltage between back door control unit harness connector and ground.





Is the measurement value normal?
YES - GO TO 3.
NO - Repair or replace harness.
3.CHECK GROUND CIRCUIT
Check continuity between back door control unit harness connector and ground.





Does continuity exist?
YES - INSPECTION END
NO - Repair or replace harness.