Front Door Lock Assembly LH (Actuator) Check

WARNING: This page is about a different car, the 2005 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DOOR LOCK ACTUATOR SIGNAL

Turn ignition switch OFF.

Check voltage between BCM connector M20 terminals 59, 65 and ground.

BCM CONNECTOR TERMINALS AND VOLTAGE REFERENCE

Connector	Terminals		Condition	Voltage (V) (Approx.)
Connector	(+)	(-)	Condition	Voltage (V) (Approx.)
M20	59	Ground	Driver door lock/unlock switch is turned to UNLOCK	0 --> Battery voltage
M20	65	Ground	Driver door lock/unlock switch is turned to LOCK	0 --> Battery voltage

OK or NG

OK: GO TO 2.
NG: Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".

Fig 1: Checking Voltage Between BCM Connector M20 Terminals 59, 65 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

CHECK DOOR LOCK ACTUATOR HARNESS

Disconnect BCM and front door lock assembly LH (actuator).

Check continuity between BCM connector M20 terminals 59, 65 and front door lock assembly LH (actuator) connector D14 terminals 1, 2.

BCM CONNECTOR TERMINALS AND CONTINUITY REFERENCE

Connector	Terminals	Connector	Terminals	Continuity
M20	59	D14	2	Yes
M20	65	D14	1	Yes

Check continuity between BCM connector M20 terminals 59, 65 and ground.

BCM CONNECTOR TERMINALS AND CONTINUITY REFERENCE

Connector	Terminals		Continuity
M20	59	Ground	No
M20	65	Ground	No

Fig 2: Checking Continuity Between BCM Connector M20 Terminals 59, 65 And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Replace front door lock assembly LH (actuator). Refer to "REMOVAL AND INSTALLATION ".
NG: Repair or replace harness.