Sedan With Intelligent Key

UNLOCK SENSOR


Description

Detects door lock condition of driver door.





UNLOCK SENSOR


Diagnosis Procedure

Regarding Wiring Diagram information, refer to Sedan With Intelligent Key.
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 and front door lock assembly LH connector.





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. Refer to BCM
5.CHECK UNLOCK SENSOR
Refer to Sedan With Intelligent Key.
Is the inspection result normal?
YES - GO TO 6
NO - Replace front door lock assembly LH. Refer to Sedan With Intelligent Key.
6.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
- Inspection End.