Nissan Pathfinder: Door & Lock - Door Lock Actuator

• Front Lh
• Rear Lh

Front Lh Nissan Pathfinder

Diagnosis Procedure

CHECK DOOR LOCK ACTUATOR INPUT SIGNAL

1. Ignition switch OFF.

2. Disconnect front door lock assembly LH connector.

3. Check voltage between front door lock assembly LH harness connector and ground.

   (+)		(–)	Condition		Voltage (Approx.)
   Front door lock assembly LH
   Connector	Terminal
   D14	1	Ground	Door lock/unlock switch	Unlock	Battery voltage
   	2			Lock

Is the inspection result normal?

YES>>

Replace front door lock assembly LH. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK DOOR LOCK ACTUATOR CIRCUIT

1. Disconnect BCM and rear door lock assembly LH connector.

2. Check continuity between BCM harness connector and front door lock assembly LH harness connector.

   BCM		Front door lock assembly LH		Continuity
   Connector	Terminal	Connector	Terminal
   M81	134	D14	1	Yes
   	142		2

3. Check continuity between BCM harness connector and ground.

   BCM		—	Continuity
   Connector	Terminal
   M81	134	Ground	No
   	142

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

CHECK BCM OUTPUT SIGNAL

1. Connect BCM connector.

2. Check voltage between BCM harness connector and ground.

(+)		(–)	Condition		Voltage (Approx.)
BCM
Connector	Terminal
M81	134	Ground	Door lock/unlock switch	Unlock	Battery voltage
	142			Lock

Is the inspection result normal?

YES>>

Check for internal short of front door lock actuator.

NO>>

Replace BCM. Refer to Removal and Installation.

Rear Lh Nissan Pathfinder R53

Diagnosis Procedure

CHECK DOOR LOCK ACTUATOR INPUT SIGNAL

1. Ignition switch OFF.

2. Disconnect rear door lock assembly LH connector.

3. Check voltage between rear door lock assembly LH harness connector and ground.

   (+)		(–)	Condition		Voltage (Approx.)
   Rear door lock assembly LH
   Connector	Terminal
   D205	1	Ground	Door lock/unlock switch	Unlock	Battery voltage
   	2			Lock

Is the inspection result normal?

YES>>

Replace rear door lock assembly LH. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK DOOR LOCK ACTUATOR CIRCUIT

1. Disconnect BCM connector, front door lock assembly LH connector and rear door lock assembly RH connector.

2. Check continuity between BCM harness connector and rear door lock assembly LH harness connector.

   BCM		Rear door lock assembly LH		Continuity
   Connector	Terminal	Connector	Terminal
   M81	142	D205	2	Yes
   B45	155		1

3. Check continuity between BCM harness connector and ground.

   BCM		—	Continuity
   Connector	Terminal
   M81	142	Ground	No
   B45	155

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

CHECK BCM OUTPUT SIGNAL

1. Connect BCM connector.

2. Check voltage between BCM harness connector and ground.

(+)		(–)	Condition		Voltage (Approx.)
BCM
Connector	Terminal
M81	142	Ground	Door lock/unlock switch	Lock	Battery voltage
B45	155			Unlock

Is the inspection result normal?

YES>>

Check for internal short of rear door lock actuator.

NO>>

Replace BCM. Refer to Removal and Installation.