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Home >> Nissan-Datsun >> 2009 >> Cube Base >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Security Control System (With Intelligent Key System) >> DTC/Circuit Diagnosis >> DTC B2556: Push-Button Ignition Switch >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK PUSH-BUTTON IGNITION SWITCH INPUT SIGNAL
    1. Turn ignition switch OFF.
    2. Disconnect push-button ignition switch connector.
    3. Check voltage between push-button ignition switch harness connector and ground.
      VOLTAGE SPECIFICATION

      (+) (-) Voltage (V) (Approx.)
      Push-button ignition switch
      Connector Terminal
      M101 8 Ground 12

    Is the inspection result normal? 

    YES: GO TO  3.

    NO: GO TO 2.

  2. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT
    1. Disconnect BCM connector and IPDM E/R connector.
    2. Check continuity between push-button ignition switch harness connector and BCM harness connector.
      CONTINUITY SPECIFICATION

      Push-button ignition switch BCM Continuity
      Connector Terminal Connector Terminal
      M101 8 M71 100 Existed
    3. Check continuity between push-button ignition switch harness connector and ground.
      CONTINUITY SPECIFICATION

      Push-button ignition switch Ground Continuity
      Connector Terminal
      M101 8 Not existed

    Is the inspection result normal? 

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

    NO: Repair or replace harness.

  3. CHECK PUSH-BUTTON IGNITION SWITCH GROUND CIRCUIT

    Check continuity between push-button ignition switch harness connector and ground.

    CONTINUITY SPECIFICATION

    Push-button ignition switch Ground Continuity
    Connector Terminal
    M101 4 Existed

    Is the inspection result normal? 

    YES: GO TO 4.

    NO: Repair or replace harness.

  4. CHECK PUSH-BUTTON IGNITION SWITCH

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 5.

    NO: Replace push-button ignition switch. Refer to "REMOVAL AND INSTALLATION ".

  5. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    INSPECTION END