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Diagnosis Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK PUSH-BUTTON IGNITION SWITCH OPERATION

    Press push-button ignition switch and check if it turns to ON.

    Does ignition switch turn to ON? 

    YES: GO TO 2

    NO: GO TO  4

  2. CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)
    1. Turn ignition switch OFF.
    2. Disconnect push-button ignition switch.
    3. Check voltage between IPDM E/R harness connector and ground.
    VOLTAGE SPECIFICATION

    Terminals Voltage (V)
    (+) (-)
    IPDM E/R Ground
    Connector Terminal
    E18 28 Battery voltage
    Fig 1: Checking Voltage Between IPDM E/R Harness Connector And Ground
    G05047399Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: GO TO 3

    NO: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION ".

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

      IPDM E/R Push-button ignition switch Continuity
      Connector Terminal Connector Terminal
      E18 (A) 28 M38 (B) 4 Yes
      Fig 2: Checking Continuity Between IPDM E/R Harness Connector (A) And Push-Button Ignition Switch Harness Connector (B)
      G05047400Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check continuity between IPDM E/R harness connector and ground.
    CONTINUITY SPECIFICATION

    IPDM E/R Ground Continuity
    Connector Terminal
    E18 28 No
    Fig 3: Checking Continuity Between IPDM E/R Harness Connector And Ground
    G05047401Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: GO TO  6

    NO: Repair or replace harness.

  4. CHECK IGNITION SWITCH OUTPUT SIGNAL (BCM)
    1. Disconnect push-button ignition switch.
    2. Check voltage between BCM harness connector and ground.
    VOLTAGE SPECIFICATION

    Terminals Voltage (V)
    (+) (-)
    BCM Ground
    Connector Terminal
    M19 77 Battery voltage
    Fig 4: Checking Voltage Between BCM Harness Connector And Ground
    G05047402Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: GO TO 5

    NO: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

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

      BCM Push-button ignition switch Continuity
      Connector Terminal Connector Terminal
      M19 (A) 77 M38 (B) 4 Yes
      Fig 5: Checking Continuity Between BCM Harness Connector (A) And Push-Button Ignition Switch Harness Connector (B)
      G05047403Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check continuity between BCM harness connector and ground.
    CONTINUITY SPECIFICATION

    BCM Ground Continuity
    Connector Terminal
    M19 77 No
    Fig 6: Checking Continuity Between BCM Harness Connector And Ground
    G05047404Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: GO TO 6

    NO: Repair or replace harness.

  6. CHECK INTERMITTENT INCIDENT

Refer to "INTERMITTENT INCIDENT ".

Inspection End.

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