Back Door Control Unit

POWER SUPPLY AND GROUND CIRCUIT


BACK DOOR CONTROL UNIT : Diagnosis Procedure

Regarding Wiring Diagram information, Back Door Control Unit.
1.BACK DOOR POWER SUPPLY CIRCUIT INSPECTION
1. Turn ignition switch OFF.
2. Disconnect back door control unit connector.





3. Check voltage between back door control unit connector B55 terminals 3, 7, 10 and ground.





Is the inspection result normal?
YES - GO TO 2
NO - Repair the back door control unit power supply circuit.
2.BACK DOOR GROUND CIRCUIT INSPECTION





Check continuity between back door control unit connector B55 terminal 1, 2 and ground.





Is the inspection result normal?
YES - Circuit is OK.
NO - Repair the harness between the back door control unit and ground.