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Home >> Nissan-Datsun >> 2015 >> Altima Base >> Repair and Diagnosis >> Electrical >> Body Electrical >> Power Control System >> Power Distribution System >> DTC/Circuit Diagnosis >> Push-Button Ignition Switch >> Diagnosis Procedure

Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

  1. CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL (PUSH-BUTTON IGNITION SWITCH)

    1. Turn ignition switch OFF.
    2. Disconnect push-button ignition switch connector and IPDM E/R connector E63.
    3. Check voltage between push-button ignition switch connector M38 and ground.
      Push-button ignition switch Ground Voltage
      (Approx.)
      Connector Terminal
      M38 8 - Battery voltage

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    GO TO STEP 2  .

  2. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)

    1. Disconnect BCM connector M17.
    2. Check continuity between BCM connector M17 and push-button ignition switch connector M38.
      BCM Push-button ignition switch Continuity
      Connector Terminal Connector Terminal
      M17 1 M38 8 Yes
    3. Check continuity between BCM connector M17 and ground.
      BCM Ground Continuity
      Connector Terminal
      M17 1 - No

    Is the inspection result normal?

    YES 

    Replace BCM. Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair or replace harness or connectors.

  3. CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)

    Check voltage between IPDM E/R connector E63 and ground.

    IPDM E/R Ground Voltage
    (Approx.)
    Connector Terminal
    E63 38 - Battery voltage

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    GO TO STEP 4  .

  4. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)

    1. Disconnect BCM connector M17.
    2. Check continuity between IPDM E/R connector E63 and push-button ignition switch connector M38.
      IPDM E/R Push-button ignition switch Continuity
      Connector Terminal Connector Terminal
      E63 38 M38 8 Yes
    3. Check continuity between IPDM E/R connector E63 and ground.
      IPDM E/R Ground Continuity
      Connector Terminal
      E63 38 - No

    Is the inspection result normal?

    YES 

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

    NO 

    Repair or replace harness or connectors.

  5. CHECK PUSH-BUTTON IGNITION SWITCH GROUND CIRCUIT

    Check continuity between push-button ignition switch connector M38 and ground.

    Push-button ignition switch Ground Continuity
    Connector Terminal
    M38 4 - Yes

    Is the inspection result normal?

    YES 

    GO TO STEP 6  .

    NO 

    Repair or replace harness or connectors.

  6. CHECK PUSH-BUTTON IGNITION SWITCH

    Refer to COMPONENT INSPECTION .

    Is the inspection result normal?

    YES 

    Refer to INTERMITTENT INCIDENT .

    NO 

    Replace push-button ignition switch. Refer to REMOVAL AND INSTALLATION .