Diagnosis Procedure

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.
   UNLOCK SENSOR INPUT SIGNAL REFERENCE CHART
   
   

   (+)		(-)	Signal (Reference value)
   Driver side door lock assembly
   Connector	Terminal
   D15	3	Ground

   Is the inspection result normal? 

   YES: GO TO  3.

   NO: GO TO 2.

1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and driver side door lock assembly harness connector.
   TERMINALS CONTINUITY REFERENCE CHART
   
   

   BCM		Driver side door lock assembly		Continuity
   Connector	Terminal	Connector	Terminal
   M123	119	D15	3	Existed

3. Check continuity between BCM harness connector and ground.
   TERMINALS CONTINUITY REFERENCE CHART
   
   

   BCM		Ground	Continuity
   Connector	Terminal
   M123	119		Not existed

   Is the inspection result normal? 

   YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

   NO: Repair or replace harness.

Check continuity between driver side assembly harness connector and ground.

Is the inspection result normal? 

YES: GO TO 4.

NO: Repair or replace harness.

Refer to "COMPONENT INSPECTION ".

Is the inspection result normal? 

YES: GO TO 5.

NO: Replace driver side door lock assembly. Refer to "DOOR LOCK : REMOVAL AND INSTALLATION ".

Refer to "INTERMITTENT INCIDENT ".

INSPECTION END