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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 487 (Engine Control System (VK56VD) DTC/Circuit Diagnosis (6 Of 6)) >> DTC/Circuit Diagnosis >> Sensor Power Supply 2 Circuit >> DTC Diagnosis Procedure >> Sensor power supply 3

Sensor power supply 3

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD and 2019 Nissan NV2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-1 
    1. Turn ignition switch OFF.
    2. Disconnect accelerator pedal position (APP) sensor 2 harness connector.
    3. Turn ignition switch ON.
    4. Check the voltage between APP sensor 2 harness connector and ground.

      +

      -

      Voltage

      (Approx.)

      APP sensor 2

      Connector

      Terminal

      E20

      1

      Ground

      5 V

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    GO TO 2.

  2. CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT-2 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between APP sensor 2 harness connector and ECM harness connector.

      +

      -

      Continuity

      APP sensor 2

      ECM

      Connector

      Terminal

      Connector

      Terminal

      E20

      1

      E77

      142

      Existed

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair open circuit.

  3. CHECK SENSOR POWER SUPPLY 2 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

    142

    APP sensor 2

    E20

    1

    F78

    30

    Multi-way control valve

    F92

    5

    Fan clutch assembly

    F97

    2

    F79

    73

    Camshaft position sensor (Bank 2)

    F58

    1

    Exhaust valve timing control position sensor (Bank 2)

    F72

    1

    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.