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Door Switch Check

WARNING: This page is about a different car, the 2006 Nissan Pathfinder. 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.

    MONITOR ITEM CONDITION

    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.

    TERMINAL VOLTAGE SPECIFICATION

    Item Connector Terminals Condition Voltage (V) (Approx.)
    (+) (-)
    Front RH M18 12 Ground OPEN 0
    CLOSE Battery voltage
    Front LH M19 47 OPEN 0
    CLOSE Battery voltage
    Fig 2: Checking Voltage Between BCM Connector And Ground
    G04176032Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Front door switch is OK.

    NG: GO TO 2.

  2. CHECK FRONT 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 connector B8 (LH) or B108 (RH) terminal 2 and BCM connector M19 terminal 47 (LH) or connector M18 terminal 12 (RH).

      Front LH 

      2 - 47: Continuity should exist. 

      Front RH 

      2 - 12: Continuity should exist. 

    4. Check continuity between front door switch connector B8 (LH) or B108 (RH) terminal 2 and ground.

      2 - Ground: Continuity should not exist. 

    Fig 3: Checking Continuity Between Front Door Switch Connector B8 (LH) Or B108 (RH) Terminal 2 And Ground
    G04176033Courtesy of NISSAN MOTOR CO., U.S.A.

    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 2 and body ground part of front door switch.
    TERMINAL CONTINUITY

    Terminal Door switch Continuity
    2 Body ground part of front door switch Pushed No
    Released Yes
    Fig 4: Checking Continuity Between Front Door Switch Terminal 2 And Body Ground
    G04176034Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace BCM. Refer to "REMOVAL AND INSTALLATION "

    NG: Replace malfunctioning front door switch.

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