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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Control System (DTC/Circuit Diagnosis) (5.6L) (6 Of 6)) >> DTC/Circuit Diagnosis >> Sensor Power Supply 3 Circuit >> DTC Diagnosis Procedure >> Sensor power supply 3

Sensor power supply 3

WARNING: This page is about a different variant/trim than selected.
  1. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT-1 
    1. Turn ignition switch OFF.
    2. Disconnect EVAP control system pressure sensor harness connector.
    3. Turn ignition switch ON.
    4. Check the voltage between EVAP control system pressure sensor harness connector and ground.

      +

      -

      Voltage

      (Approx.)

      EVAP control system pressure sensor

      Connector

      Terminal

      C32

      3

      Ground

      5 V

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    GO TO 2.

  2. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT-2 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.

      +

      -

      Continuity

      EVAP control system pressure sensor

      ECM

      Connector

      Terminal

      Connector

      Terminal

      C32

      3

      E77

      125

      Existed

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair open circuit.

  3. CHECK SENSOR POWER SUPPLY 3 CIRCUIT 
    1. Disconnect following sensors harness connector.
    2. Check harness for short to power and short to ground, between the following terminals.

    ECM

    Sensor

    Connector

    Terminal

    Name

    Connector

    Terminal

    E77

    125

    EVAP control system pressure sensor

    C32

    3

    F78

    29

    Fuel rail pressure sensor

    F91

    1

    Engine oil pressure sensor

    E229

    3

    Refrigerant pressure sensor

    E49

    3

    Power steering pressure sensor

    F82

    3

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Repair short to ground or short to power in harness or connectors.

  4. CHECK COMPONENTS 

    Check the following.

    Is the inspection result normal?

    YES

    Perform Intermittent Incident .

    NO

    Replace malfunctioning component.