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Weather Strip Detection Switch System Check

  1. CHECK WEATHER STRIP DETECTION SWITCH SIGNAL 

    Check voltage between auto trunk control unit connector and ground.

    CONNECTOR VOLTAGE CHART

    Connector Terminals (Wire color) Condition Voltage (V) (Approx.)
    (+) (-)
    B110 10 (Y/B) Ground Trunk lid fully is between just before fully closed position and fully closed position (OFF) 5
    Other than above 0
    Fig 1: Checking Voltage Between Auto Trunk Control Unit Connector And Ground
    G04129555Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    • OK : Weather strip detection switch is OK.
    • NG : GO TO 2.
  2. CHECK HARNESS CONTINUITY 
    1. Turn ignition switch OFF.
    2. Disconnect auto trunk control unit and auto trunk motor connector.
    3. Check continuity between auto trunk control unit connector B110 terminal 10 and auto trunk motor connector B109 terminal 1.

      10 (Y/B) - 1 (Y/B) : Continuity should exist. 

    4. Check continuity between auto trunk control unit connector B110 terminal 10 and ground.

      10 (Y/B) - Ground : Continuity should not exist. 

    OK or NG 

    • OK : GO TO 3.
    • NG : Repair or replace harness between auto trunk control unit and auto trunk motor.
      Fig 2: Checking Continuity Between Auto Trunk Control Unit Connector B110 Terminal 10 And Ground
      G04129556Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK GROUND CIRCUIT 

    Check continuity between trunk motor connector B109 terminal 4 and ground.

    4 (B) - Ground : Continuity should exist. 

    OK or NG 

    • OK : GO TO 4.
    • NG : Repair or replace harness.
      Fig 3: Checking Continuity Between Trunk Motor Connector B109 Terminal 4 And Ground
      G04129557Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK WEATHERSTRIP DETECTION SWITCH 

    Check continuity between auto trunk motor terminals 1 and 4.

    CONTINUITY CHART

    Terminals Condition Continuity
    1 4 Trunk lid fully is between just before fully closed position and fully closed position (OFF) No
    Other than above Yes

    OK or NG 

    • OK : Replace auto trunk control unit.
    • NG : Replace auto trunk motor.
      Fig 4: Checking Continuity Between Auto Trunk Motor Terminals 1 And 4
      G04129558Courtesy of NISSAN MOTOR CO., U.S.A.
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