Unlock Sensor Check (Without Intelligent Key)

CHECK UNLOCK SENSOR SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between back door closure control unit connector and ground.
  
  Fig 1: Connector Terminal Reference Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Checking Voltage Between Back Door Closure Control Unit Connector And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK : Unlock sensor is OK.
2. NG : GO TO 2.
CHECK HARNESS CONTINUITY
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.
  1. 5 (W) - 5 (W) : Continuity should exist.
  Fig 3: Checking Harness Continuity
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK : GO TO 3.
2. NG : Repair or replace harness between back door closure control unit and front door lock assembly (passenger side).
CHECK GROUND CIRCUIT
Check continuity between front door lock assembly (passenger side) connector D40 terminal 4 and ground.
1. 4 (B) - Ground : Continuity should exist.
OK or NG
1. OK : GO TO 4.
2. NG : Repair or replace harness.
Fig 4: Checking Continuity Between Front Door Lock Assembly (Passenger Side) Connector D40 Terminal 4 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK BACK DOOR CLOSURE CONTROL UNIT OUTPUT SIGNAL
1. Connect back door closure control unit connector.
2. Check voltage between back door closure control unit connector D106 terminal 5 and ground.
  1. 5 (W) - Ground : Approx. 5V
  Fig 5: Checking Voltage Between Back Door Closure Control Unit Connector D106 Terminal 5 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK : Replace front door lock assembly (passenger side).
2. NG : Replace back door closure control unit.