Front Door Lock Assembly LH (Actuator) Check

WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FRONT DOOR LOCK ASSEMBLY LH (ACTUATOR) HARNESS

Turn ignition switch OFF.
Disconnect BCM and front door lock assembly LH (actuator).

Check continuity between BCM connector M20 (A) terminals 59, 65 and front door lock assembly LH (actuator) connector (B) D51 terminals 2, 3.

BCM CONNECTOR M20 (A) TERMINALS 59, 65 AND FRONT DOOR LOCK ASSEMBLY LH (ACTUATOR) CONNECTOR (B) D51 TERMINALS 2, 3

Connector	Terminal	Connector	Terminal	Continuity
M20	59	D51	2	Yes
M20	65	D51	3	Yes

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

BCM CONNECTOR M20 TERMINALS 59, 65 AND BODY GROUND

Connector	Terminals		Continuity
M20	59	Ground	No
M20	65	Ground	No

Fig 1: Checking Continuity Between BCM Connector M20 Terminals 59, 65 And Body Ground

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

OK or NG

OK: GO TO 2.

NG: Repair or replace harness.

CHECK FRONT DOOR LOCK ASSEMBLY LH SIGNAL

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

BCM CONNECTOR M20 TERMINALS 59, 65 AND GROUND

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

Fig 2: Checking Voltage 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: Replace BCM. Refer to "BCM ".