Unlock Sensor

UNLOCK SENSOR





Description
Detects door lock condition of driver side door.




Component Function Check
1.CHECK FUNCTION
Check ("UNLK SEN -DR") in BCM "Data Monitor" mode using CONSULT-III.





Is the inspection result normal?
YES - Unlock sensor is OK.
NO - SEE Diagnosis Procedure.




Diagnosis Procedure
1.CHECK UNLOCK SENSOR INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect driver side door lock assembly connector.
3. Check signal between driver side door lock assembly harness connector and ground using oscilloscope.






Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 2.
2.CHECK UNLOCK SENSOR CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and driver side door lock assembly 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 UNLOCK SENSOR GROUND CIRCUIT
Check continuity between driver side door lock assembly harness connector and ground.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace harness.
4.CHECK UNLOCK SENSOR
SEE Component Inspection.
Is the inspection result normal?
YES - GO TO 5.
NO - Replace driver side door lock assembly. Removal And Installation.
5.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- INSPECTION END




Component Inspection
1.CHECK UNLOCK SENSOR
1. Turn ignition switch OFF.
2. Disconnect driver side door lock assembly connector.
3. Check continuity between driver side door lock assembly terminals.





Is the inspection result normal?
YES - INSPECTION END
NO - Replace driver side door lock assembly. Removal And Installation.