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Home >> Nissan-Datsun >> 2018 >> Murano S, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 196 (Power Distribution System) >> Power Distribution System >> DTC/Circuit Diagnosis >> Push-Button Ignition Switch >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to the appropriate Wiring Diagram (Power Distribution System).

  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 E119.
    3. Check voltage between push-button ignition switch connector M17 and ground.

      Push-button ignition switch

      Ground

      Voltage

      (Approx.)

      Connector

      Terminal

      M17

      8

      -

      Battery voltage

    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 M18.
    2. Check continuity between BCM connector M18 and push-button ignition switch connector M17.

      BCM

      Push-button ignition switch

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M18

      1

      M17

      8

      Yes

    3. Check continuity between BCM connector M18 and ground.

      BCM

      Ground

      Continuity

      Connector

      Terminal

      M18

      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 E119 and ground.

    IPDM E/R

    Ground

    Voltage

    (Approx.)

    Connector

    Terminal

    E119

    38

    -

    Battery voltage

    Is the inspection result normal?

    YES

    GO TO 5 .

    NO

    GO TO 4 .

  4. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R) 
    1. Disconnect BCM connector M18.
    2. Check continuity between IPDM E/R connector E119 and push-button ignition switch connector M17.

      IPDM E/R

      Push-button ignition switch

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      E119

      38

      M17

      8

      Yes

    3. Check continuity between IPDM E/R connector E119 and ground.

      IPDM E/R

      Ground

      Continuity

      Connector

      Terminal

      E119

      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 M17 and ground.

    Push-button ignition switch

    Ground

    Continuity

    Connector

    Terminal

    M17

    4

    -

    Yes

    Is the inspection result normal?

    YES

    GO TO 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 .