Check Unlock Sensor (Without Intelligent Key)

1. Turn ignition switch OFF.
2. Check voltage between back door closure control unit connector and ground.
   CONNECTOR TERMINAL VOLTAGE SPECIFICATIONS
   
   

   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

   Fig 1: Identifying Voltage Between Back Door Closure Control Unit Connector And Ground

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

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. 

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).

Fig 2: Identifying Harness Continuity

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

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

4 (B) - Ground : Continuity should exist. 

OK or NG 

OK : GO TO 4.

NG : Repair or replace harness.

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

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

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 

OK or NG 

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

NG : Replace back door closure control unit.

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

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