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Home >> Nissan-Datsun >> 2012 >> Quest SL >> Repair and Diagnosis >> Electrical >> Body Electrical >> Power Control System >> Power Distribution System >> DTC/Circuit Diagnosis >> DTC B261A: Push-Button Ignition Switch >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK PUSH-BUTTON IGNITION SWITCH (PUSH SWITCH) OUTPUT SIGNAL
    1. Disconnect push-button ignition switch connector and IPDM E/R connector.
    2. Check voltage between push-button ignition switch harness connector and ground.
      (+) (-) Voltage (V) (Approx.)
      Push-button Ignition switch
      Connector Terminal
      M101 4 Ground 9 - 16

      Is the inspection result normal? 

      YES: GO TO  3.

      NO: GO TO 2.

  2. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)
    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
      M124 76 M101 4 Existed
    3. Check continuity between push-button ignition switch harness connector and ground.
      Push-button Ignition switch Ground Continuity
      Connector Terminal
      M101 4 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 (PUSH SWITCH) OUTPUT SIGNAL (IPDM E/R)

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

    (+) (-) Voltage (V) (Approx.)
    IPDM E/R
    Connector Terminal
    E10 28 Ground 9 - 16

    Is the inspection result normal? 

    YES: Replace IPDM E/R.

    NO: GO TO 4.

  4. CHECK PUSH-BUTTON IGNITION SWITCH (PUSH SWITCH) CIRCUIT (IPDM E/R)
    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
      E10 28 M101 4 Existed
    3. Check continuity between push-button ignition switch harness connector and ground.
      Push-button Ignition switch Ground Continuity
      Connector Terminal
      M101 4 Not existed

      Is the inspection result normal? 

      YES: GO TO 5.

      NO: Repair or replace harness.

  5. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    : INSPECTION END

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