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Door Switch Check

WARNING: This page is about a different car, the 2006 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FRONT DOOR SWITCH INPUT SIGNAL 

    With CONSULT-II 

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

    DOOR SWITCHES CONDITION CHART

    Monitor item Condition
    DOOR SW-DR OPEN :ON
    CLOSE :OFF
    DOOR SW-AS OPEN :ON
    CLOSE :OFF
    Fig 1: CONSULT II Display - Data Monitor
    G04077386Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    Check voltage between BCM connector and ground.

    CONNECTOR TERMINAL VOLTAGE CHECK CHART

    Item Connector Terminals Condition Voltage (V) (Approx.)
    (+) (-)
    Front RH M18 12 Ground OPEN 0
    CLOSE Battery voltage
    Front LH M20 62 OPEN 0
    CLOSE Battery voltage
    Fig 2: Identifying Voltage Between BCM Connector Terminals 12,26 And Ground
    G04199718Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Front door switch is OK.

    NG: GO TO 2.

  2. CHECK DOOR SWITCH CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect front door switch LH or RH and BCM.
    3. Check continuity between front door switch LH or RH and BCM.
      TERMINAL CONTINUITY CHECK CHART

      Connector Terminal Connector Terminal Continuity
      A B
      BCM: M18 12 Front door switch RH: B108 1 Yes
      BCM: M20 62 Front door switch LH: B8 1 Yes
      Fig 3: Identifying Continuity Between Front Door Switch Terminal 1 BCM Terminals 12,62 And Ground
      G04199719Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check continuity between front door switch LH or RH and ground.
      CONNECTOR TERMINAL CONTINUITY CHART

      Connector Terminal Ground Continuity
      A
      Front door switch LH: B8 1 No
      Front door switch RH: B108 1 No

    OK or NG 

    OK: GO TO 3.

    NG: Repair or replace harness.

  3. CHECK DOOR SWITCH 
    1. Disconnect front door switch LH or RH.
    2. Check continuity between each front door switch terminal 1 and body ground part of front door switch.
      CONTINUITY CHECK CHART

      Terminal Door switch Continuity
      1 Body ground part of front door switch Pushed No
      Released Yes

    OK or NG 

    OK: Further inspection is necessary. Refer to SYMPTOM CHART .

    NG: Replace malfunctioning front door switch.

    Fig 4: Identifying Continuity Between Front Door Switch Terminal 1 And Body Ground
    G04199720Courtesy of NISSAN MOTOR CO., U.S.A.
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