LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2013 >> M37 Base >> Repair and Diagnosis >> Electrical >> Body Electrical >> Power Control System (Power Distribution System) >> DTC/Circuit Diagnosis >> Push-Button Ignition Switch >> Diagnosis Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnosis Procedure

  1. CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL 1 
    1. Turn ignition switch OFF.
    2. Disconnect push-button ignition switch connector and IPDM E/R connector.
    3. Check voltage between push-button ignition switch harness connector and ground.
      (+) (-) Voltage (V) (Approx.)
      Push-button ignition switch
      Connector Terminal
      M50 4 Ground Battery voltage

      Is the inspection result normal? 

      YES: GO TO  3.

      NO: GO TO 2.

  2. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT 1 
    1. Disconnect BCM connector.
    2. Check continuity between BCM harness connector and push-button ignition switch harness connector.
      BCM Push-button ignition switch Continuity
      Connector Terminal Connector Terminal
      M123 76 M50 4 Existed
    3. Check continuity between BCM harness connector and ground.
      BCM Ground Continuity
      Connector Terminal
      M123 76 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 OUTPUT SIGNAL 2 

    Check voltage between IPDM E/R harness connector and ground.

    (+) (-) Voltage (V) (Approx.)
    IPDM E/R
    Connector Terminal
    E5 30 Ground Battery voltage

    Is the inspection result normal? 

    YES: GO TO  5.

    NO: GO TO 4.

  4. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT 2 
    1. Disconnect BCM connector.
    2. Check continuity between IPDM E/R harness connector and push-button ignition switch harness connector.
      IPDM E/R Push-button ignition switch Continuity
      Connector Terminal Connector Terminal
      E5 30 M50 4 Existed
    3. Check continuity between IPDM E/R harness connector and ground.
      IPDM E/R Ground Continuity
      Connector Terminal
      E5 30 Not existed

      Is the inspection result normal? 

      YES: Replace IPDM E/R.

      NO: Repair or replace harness.

  5. CHECK PUSH-BUTTON IGNITION SWITCH GROUND CIRCUIT 

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

    Push-button ignition switch Ground Continuity
    Connector Terminal
    M50 1 Existed

    Is the inspection result normal? 

    YES: GO TO 6.

    NO: Repair or replace harness.

  6. CHECK PUSH-BUTTON IGNITION SWITCH 

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 7.

    NO: Replace push-button ignition switch.

  7. CHECK INTERMITTENT INCIDENT 

    Refer to "INTERMITTENT INCIDENT ".

    : INSPECTION END

scientia non olet · About LEMON Manuals