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Check Push-Button Ignition Switch

WARNING: This page is about a different car, the 2008 Infiniti M45 and 2008 Infiniti M35. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect push-button ignition switch connector.
    3. Check voltage between push-button ignition switch connector and ground.
      TERMINAL VOLTAGE CHART

      Terminals Voltage (V) (Approx.)
      (+) (-)
      push-button ignition switch connector Terminal
      M27 4 Ground Battery voltage

    OK or NG 

    OK: GO TO  3.

    NG: GO TO 2.

    Fig 1: Checking Voltage Between Push-Button Ignition Switch Connector Terminal 4 And Ground
    G05212348Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK HARNESS CONTINUITY 
    1. Disconnect Intelligent Key unit connector.
    2. Check continuity between Intelligent Key unit connector and push-button ignition switch connector.
      TERMINAL CONTINUITY CHART

      A B Continuity
      Intelligent Key unit connector Terminal push-button ignition switch connector Terminal
      M32 39 M27 4 Yes
    3. Check continuity between Intelligent Key unit connector and ground.
      Fig 2: Checking Continuity Between Intelligent Key Unit Connector And Push-Button Ignition Switch Connector
      G05212333Courtesy of NISSAN MOTOR CO., U.S.A.
      TERMINAL CONTINUITY CHART

      A Ground Continuity
      Intelligent Key unit connector Terminal
      M32 39 No

    OK or NG 

    OK: GO TO 3.

    NG: Repair or replace harness.

  3. CHECK PUSH-BUTTON IGNITION SWITCH 

    Check push-button ignition switch.

    TERMINAL REFERENCE CHART

    Terminal Push-button ignition switch condition Continuity
    Push-button ignition switch
    1 4 Pushed Yes
    Released No

    OK or NG 

    OK: GO TO 4.

    NG: Replace push-button ignition switch.

    Fig 3: Checking Push-Button Ignition Switch
    G05212334Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK GROUND CIRCUIT 

    Check push-button ignition switch connector.

    TERMINAL REFERENCE CHART

    Push-button ignition switch connector Terminal Ground Continuity
    M27 1 Yes

    OK or NG 

    OK: Check the condition of harness and connector.

    NG: Repair or replace harness.

    Fig 4: Checking Push-Button Ignition Switch Connector Terminal 1 And Ground
    G05212351Courtesy of NISSAN MOTOR CO., U.S.A.
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