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Door Switch Check

  1. CHECK DOOR SWITCH INPUT SIGNAL 

    With CONSULT-II 

    Check ("DOOR SW-DR" and "DOOR SW-AS") in "DATA MONITOR" mode with CONSULT-II.

    Fig 1: CONSULT-II Display - DOOR SW-DR And DOOR SW-AS
    G03107349Courtesy of NISSAN MOTOR CO., U.S.A.
    MONITOR ITEM - CONDITION

    Monitor item Condition
    DOOR SW-DR OPEN: ON
    CLOSE: OFF
    DOOR SW-AS OPEN: ON
    CLOSE: OFF

    Without CONSULT-II 

    Check voltage between BCM connector M3, B14 terminals 12, 62 and ground.

    Fig 2: Checking Door Switch Voltage
    G03107350Courtesy of NISSAN MOTOR CO., U.S.A.
    DOOR SWITCH VOLTAGE

    Item Terminals (Wire color) Door condition Voltage (V) (Approx.)
    (+) (-)
    Passenger side door switch 12(P/B) Ground OPEN 0
    CLOSE Battery voltage
    Driver side door switch 62 (W) OPEN 0
    CLOSE Battery voltage

    OK or NG

    1. OK: Door switch is OK.
    2. NG: GO TO 2.
  2. CHECK HARNESS CONTINUITY 
    1. Turn ignition switch OFF.
    2. Disconnect door switch and BCM connector.
    3. Check continuity between BCM connector M3, B14 terminal 12, 62 and door switch connector B26, B36 terminal 1.

      Driver side door 

      62 (W) - 1 (W): Continuity should exist. 

      Passenger side door 

      12 (P/B) - 1 (SB): Continuity should exist. 

    4. Check continuity between BCM connector M3, B14 terminals 12, 62 and ground.
      Fig 3: Checking Door Switch Harness Continuity
      G03107351Courtesy of NISSAN MOTOR CO., U.S.A.

      12 (P/B) - Ground: Continuity should not exist. 

      62 (W) - Ground: Continuity should not exist. 

    OK or NG

    1. OK: GO TO 3.
    2. NG: Repair or replace harness.
  3. CHECK DOOR SWITCH 

    Check continuity between door switches terminal 1 and ground part of door switch.

    Fig 4: Checking Door Switch
    G03107352Courtesy of NISSAN MOTOR CO., U.S.A.
    DOOR SWITCH CONTINUITY

    Terminal Door switch Continuity
    1 Ground part of door switch Pushed No
    Released Yes

    OK or NG

    1. OK: GO TO 4.
    2. NG: Replace malfunction door switch.
  4. CHECK BCM OUTPUT SIGNAL 
    1. Connect BCM connector.
    2. Check voltage between BCM connector M3, B14 terminal 12, 62 and ground.
      Fig 5: Checking BCM Output Signal
      G03107353Courtesy of NISSAN MOTOR CO., U.S.A.

      12 (P/B) - Ground: Battery voltage 

      62 (W) - Ground: Battery voltage 

    OK or NG

    1. OK: Further inspection is necessary, Refer to symptom chart.
    2. NG: Replace BCM.