Unlock Sensor Check

CHECK UNLOCK SENSOR SIGNAL

Check voltage between back door closure control unit connector and ground.

UNLOCK SENSOR CHECK

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

Fig 1: Checking Unlock Sensor Signal

G03107165

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

OK or NG

OK : Unlock sensor is OK.
NG : GO TO 2.

CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect back door closure control unit and front door lock assembly (passenger side) connector.
3. 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 or B) - 5 (W) : Continuity should exist.
  
  Fig 2: 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.

4 (B) - Ground : Continuity should exist.

Fig 3: Checking Ground Circuit
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : GO TO 4.
2. NG : Repair or replace harness.
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.
  5 (W or B) - Ground : Approx. 5V
  
  Fig 4: Checking Back Door Closure Control Unit Output Signal
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK : Check condition of harness and connector.
2. NG : Replace back door closure control unit.