Trunk Lid Lock Switch Check

1. Turn ignition switch OFF.
2. Check voltage between trunk closure control unit connector and ground.
   CONNECTOR VOLTAGE CHART
   
   

   Terminals			Condition	Voltage (V) (Approx.)
   ( + )		( - )
   Connector	Terminal (Wire color)	Ground
   B56	1 (P)		Engage the latch of trunk lock (OFF)	Battery voltage
   			Other than the above (ON)	0

   Fig 1: Checking Voltage Between Trunk Closure Control Unit Connector And Ground

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

OK or NG 

• OK : Trunk lid lock switch is OK.
• NG : GO TO 2.

1. Disconnect trunk closure control unit and trunk lid lock switch connector.
2. Check continuity between trunk closure control unit connector B56 terminal 1 and trunk lid lock switch connector B312 terminal 1.

   1 (P) - 1 (P) : Continuity should exist. 

OK or NG 

• OK : GO TO 3.
• NG : Repair or replace harness.
  Fig 2: Checking Continuity Between Trunk Closure Control Unit Connector B56 Terminal 1 And Trunk Lid Lock Switch Connector B312 Terminal 1

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

Check continuity between trunk lid lock switch connector B312 terminal 2 and ground.

2 (B/W) - Ground : Continuity should exist. 

OK or NG 

• OK : GO TO 4.
• NG : Repair or replace harness.
  Fig 3: Checking Continuity Between Trunk Lid Lock Switch Connector B312 Terminal 2 And Ground

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

Check continuity between trunk lid lock switch terminals 1 and 2.

OK or NG 

• OK : Replace trunk closure control unit.
• NG : Replace trunk lid lock switch.
  Fig 4: Checking Continuity Between Trunk Lid Lock Switch Terminals 1 And 2

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