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Home >> Infiniti >> 2015 >> QX80 Base, AWD >> Repair and Diagnosis >> Electrical >> Body Electrical >> Power Control System (Power Distribution System) >> DTC/Circuit Diagnosis >> Push-Button Ignition Switch >> Diagnosis Procedure
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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
      M101 4 Ground 12

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    GO TO STEP 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
      M71 100 M101 4 Existed
    3. Check continuity between BCM harness connector and ground.
      BCM Ground Continuity
      Connector Terminal
      M71 100 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
    E17 66 Ground Battery voltage

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    GO TO STEP 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
      E17 66 M101 4 Existed
    3. Check continuity between IPDM E/R harness connector and ground.
      IPDM E/R Ground Continuity
      Connector Terminal
      E17 66 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
    M101 1 Existed

    Is the inspection result normal?

    YES 

    GO TO STEP 6  .

    NO 

    Repair or replace harness.

  6. CHECK PUSH-BUTTON IGNITION SWITCH

    Refer to COMPONENT INSPECTION .

    Is the inspection result normal?

    YES 

    GO TO STEP 7  .

    NO 

    Replace push-button ignition switch.

  7. CHECK INTERMITTENT INCIDENT

    Refer to INTERMITTENT INCIDENT .

    INSPECTION END

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