Diagnosis Procedure

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DOOR LOCK ACTUATOR INPUT SIGNAL

Turn ignition switch OFF.
Disconnect front door lock actuator RH connector.
Check voltage between front door lock actuator RH harness connector and ground.

(+)		(-)	Condition		Voltage (Approx.)
Front door lock actuator RH
Connector	Terminal
D114	1	Ground	Door lock and unlock switch	Unlock	Battery voltage
	2			Lock

Is the inspection result normal?

YES

Replace front door lock actuator RH. Refer to Removal and Installation .

GO TO 2.

CHECK DOOR LOCK ACTUATOR CIRCUIT

Disconnect BCM, all door lock actuators and fuel lid door lock actuator (if equipped) connector.

Check continuity between BCM harness connector and front door lock actuator RH harness connector.

BCM		Front door lock actuator RH		Continuity
Connector	Terminal	Connector	Terminal
M81	130	D114	1	Yes
	135		2

Check continuity between BCM harness connector and ground.

BCM		Ground	Continuity
Connector	Terminal
M81	130		No
	135

Is the inspection result normal?

YES

GO TO 3.

Repair or replace harness.

CHECK BCM OUTPUT SIGNAL

Connect BCM connector.
Check voltage between BCM harness connector and ground.

(+)		(-)	Condition		Voltage (Approx.)
BCM
Connector	Terminal
M81	130	Ground	Door lock and unlock switch	Unlock	Battery voltage
	135			Lock

Is the inspection result normal?

YES

Check for internal short of each door lock actuator and fuel lid door lock actuator (if equipped).

Replace BCM. Refer to Removal and Installation .