Check Unlock Sensor (Without Intelligent Key)

1. Turn ignition switch OFF.
2. Check voltage between back door closure control unit connector and ground.
   Fig 1: Identifying Voltage Between Back Door Closure Control Unit Connector And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
   UNLOCK SENSOR SIGNAL
   
   

   Connector	Terminals (Wire color)		Condition	Voltage (V) (Approx.)
   	(+)	(-)
   D106	5 (W)	Ground	Passenger side door lock is locked	5
   			Passenger side door lock is unlocked	0

OK or NG 

OK: Unlock sensor is OK.

NG: GO TO 2.

1. Disconnect back door closure control unit and front door lock assembly (passenger side) connector.
2. Check continuity between back door closure control unit connector D106 terminal 5 and front door lock assembly (passenger side) connector D40 terminal 5.

   5 (W) - 5 (W) : Continuity should exist. 

   Fig 2: Identifying Continuity Between Back Door Closure Control Unit Terminal 5 And Front Door Lock Assembly Terminal 5

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

OK or NG 

OK: GO TO 3.

NG: Repair or replace harness between back door closure control unit and front door lock assembly (passenger side).

Check continuity between front door lock assembly (passenger side) connector D40 terminal 4 and ground.

4 (B) - Ground : Continuity should exist. 

Fig 3: Identifying Continuity Between Front Door Lock Assembly Connector D40 Terminal 4 And Ground

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

OK or NG 

OK: GO TO 4.

NG: Repair or replace harness.

1. Connect back door closure control unit connector.
2. Check voltage between back door closure control unit connector D106 terminal 5 and ground.

   5 (W) - Ground : Approx. 5V 

   Fig 4: Identifying Voltage Between Back Door Closure Control Unit Connector D106 Terminal 5 And Ground

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

OK or NG 

OK: Replace front door lock assembly (passenger side).

NG: Replace back door closure control unit.