Diagnosis Procedure

BACK DOOR OPENER SWITCH OPERATION SIGNAL CIRCUIT


Description

BCM detects condition of the back door opener switch and transmits to back door control unit.




BACK DOOR OPENER SWITCH OPERATION SIGNAL CIRCUIT


Diagnosis Procedure

1.CHECK BACK DOOR CONTROL UNIT INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect back door control unit.
3. Check voltage between back door control unit harness connector and ground.





Is the inspection result normal?
YES - GO TO 4.
NO - GO TO 2.
2.CHECK BACK DOOR CONTROL UNIT CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between back door control unit harness connector and BCM harness connector.





3. Check continuity between BCM harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace harness.
3.CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Check voltage between BCM harness connector and ground.





Is the inspection result normal?
YES - GO TO 4.
NO - Replace BCM. Refer to Removal and Installation.
4.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
- INSPECTION END