Back Door Request Switch With Automatic Back Door

BACK DOOR REQUEST SWITCH





Description
Transmits lock/unlock operation to BCM.




Component Function Check
1.CHECK FUNCTION
Check back door opener request switch ("REQ SW -BD/TR ") in Data Monitor mode.





Is the inspection result normal?
YES - Back door opener request switch is OK.
NO - SEE Diagnosis Procedure.




Diagnosis Procedure
1.CHECK BCM OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect back door opener request switch.
3. Check signal between back door opener request switch harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 2.
2.CHECK BACK DOOR OPENER REQUEST SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and back door opener request switch harness connector.





3. Check continuity between BCM harness connector and ground.





Is the inspection result normal?
YES - Replace BCM. Removal And Installation.
NO - Repair or replace harness.
3.CHECK BACK DOOR OPENER REQUEST SWITCH GROUND CIRCUIT
Check continuity between back door opener request switch harness connector and ground.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace harness.
4.CHECK BACK DOOR OPENER REQUEST SWITCH
SEE Component Inspection.
Is the inspection result normal?
YES - GO TO 5.
NO - Replace back door opener request switch. Removal And Installation.
5.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- INSPECTION END




Component Inspection
1.CHECK BACK DOOR OPENER REQUEST SWITCH
1. Turn ignition switch OFF.
2. Disconnect back door opener.
3. Check back door opener request switch terminals.





Is the inspection result normal?
YES - INSPECTION END
NO - Replace back door opener request switch. Removal And Installation.