Diagnosis Procedure

UNLOCK SENSOR


Description

Detects door lock condition of driver door.





UNLOCK SENSOR


Diagnosis Procedure

Regarding Wiring Diagram information, Electrical Diagrams.
1.CHECK UNLOCK SENSOR POWER SUPPLY





Check signal between BCM connector and ground with oscilloscope.






Is the inspection result normal?
YES - GO TO 6
NO - GO TO 2
2.CHECK UNLOCK SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM and front door lock assembly LH connector.





3. Check continuity between BCM connector M18 (A) terminal 27 and front door lock assembly LH connector (B) terminal 3.





4. Check continuity between BCM connector and ground.





Is the inspection result normal?
YES - GO TO 3
NO - Repair or replace harness between BCM and front door lock assembly LH.
3.CHECK UNLOCK SENSOR GROUND CIRCUIT





Check continuity between front door lock assembly LH connector and ground.





Is the inspection result normal?
YES - GO TO 4
NO - Repair or replace harness.
4.CHECK BCM OUTPUT SIGNAL
1. Connect BCM harness connector.





2. Check signal between BCM connector and ground with oscilloscope.







Is the inspection result normal?
YES - GO TO 5
NO - Replace BCM. Body Control System.
5.CHECK UNLOCK SENSOR
Component Inspection.
Is the inspection result normal?
YES - GO TO 6
NO - Replace front door lock assembly LH. Front Door Lock.
6.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- Inspection End.