1.CHECK DOOR LOCK ACTUATOR OUTPUT SIGNAL

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

(+) | (–) | Condition | Voltage (V) (Approx.)
Driver side door lock actuator
Connector | Terminal
D15 | 1 | Ground | Door lock and unlock switch | Lock | 0 → Battery voltage → 0
3 | Unlock | 0 → Battery voltage → 0

Is the inspection result normal?
YES>>Replace driver side door lock actuator. Refer to Removal and Installation (GT-R certified NISSAN dealer).
NO>>GO TO 2.
2.CHECK DOOR LOCK ACTUATOR 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
   M119 | 8 | D15 | 1 | Existed
   9 | 3

3. Check continuity between BCM harness connector and ground.

   BCM | Ground | Continuity
   Connector | Terminal
   M119 | 8 | Not existed
   9

Is the inspection result normal?
YES>>Replace BCM. Refer to Removal and Installation.
NO>>Repair or replace harness.