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Door Switch Check

WARNING: This page is about a different car, the 2005 Nissan Frontier. 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.

    DATA MONITOR ITEMS

    Monitor item Condition
    DOOR SW-DR OPEN :ON
    CLOSE :OFF
    DOOR SW-AS OPEN :ON
    CLOSE :OFF
    Fig 1: CONSULT-II Function Diagnosis Display
    G03596709Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    Check voltage between BCM connector and ground.

    BCM CONNECTOR TERMINALS 12 & 47 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

    OK or NG 

    • OK : Front door switch is OK.
    • NG : GO TO 2.
      Fig 2: Checking Voltage Between BCM Connector And Ground
      G03596710Courtesy of NISSAN MOTOR CO., U.S.A.
  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. 

    OK or NG 

    • OK : GO TO 3.
    • NG : Repair or replace harness.
      Fig 3: Checking Continuity Between Front Door Switch Connector B108 Terminal 2 And Ground
      G03596711Courtesy of NISSAN MOTOR CO., U.S.A.
  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.
      FRONT DOOR SWITCH TERMINAL 2 CONTINUITY SPECIFICATION

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

    OK or NG 

    • OK : Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".
    • NG : Replace malfunctioning front door switch.
      Fig 4: Checking Continuity Between Front Door Switch Terminal 2 And Ground
      G03596712Courtesy of NISSAN MOTOR CO., U.S.A.
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