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Home >> Infiniti >> 2012 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> Electrical >> Body Electrical >> Power Control System (Convertible) >> Power Distribution System >> DTC/Circuit Diagnosis >> B261A Push-Button Ignition Switch >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK BCM OUTPUT
    1. Turn ignition switch OFF.
    2. Disconnect push-button ignition switch connector and IPDM E/R connector.
    3. Check voltage between IPDM E/R harness connector and ground.
      (+) (-) Voltage (V) (Approx.)
      IPDM E/R
      Connector Terminal
      E5 28 Ground Battery voltage

      Is the inspection result normal? 

      YES: Replace IPDM E/R. Refer to REMOVAL AND INSTALLATION .

      NO: GO TO  2.

  2. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT
    1. Disconnect BCM connector.
    2. Check continuity between IPDM E/R harness connector and BCM harness connector.
      IPDM E/R BCM Continuity
      Connector Terminal Connector Terminal
      E5 28 M121 60 Existed
    3. Check continuity between IPDM E/R harness connector and ground.
      IPDM E/R Ground Continuity
      Connector Terminal
      E5 28 Not existed

      Is the inspection result normal? 

      YES: Replace BCM. Refer to REMOVAL AND INSTALLATION .

      NO: Repair or replace harness.

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