1.CHECK BCM OUTPUT SIGNAL

1. Turn ignition switch OFF.
2. Disconnect driver side door lock actuator connector.
3. Check signal between driver side door lock actuator harness connector and ground using oscilloscope.

   (+) | (–) | Signal (Reference value)
   Driver side door lock actuator
   Connector | Terminal
   D15 | 2 | Ground |

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 actuator harness connector.

   BCM | Driver side door lock actuator | Continuity
   Connector | Terminal | Connector | Terminal
   M123 | 119 | D15 | 2 | Existed

3. Check continuity between BCM harness connector and ground.

   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.
3.CHECK UNLOCK SENSOR GROUND CIRCUIT
Check continuity between driver side door lock actuator harness connector and ground.

Driver side door lock actuator | Ground | Continuity
Connector | Terminal
D15 | 4 | Existed

Is the inspection result normal?
YES>>GO TO 4.
NO>>Repair or replace harness.
4.CHECK UNLOCK SENSOR
Refer to Component Inspection.
Is the inspection result normal?
YES>>GO TO 5.
NO>>Replace driver side door lock actuator. Refer to Removal and Installation (GT-R certified NISSAN dealer).
5.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
>>INSPECTION END