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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 504 (Meter, Warning Lamp & Indicator (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> Fuel Level Sensor Signal Circuit >> Diagnosis Procedure >> Meter, Warning Lamp & Indicator (DTC/Circuit Diagnosis)

Meter, Warning Lamp & Indicator (DTC/Circuit Diagnosis)

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK HARNESS CONNECTOR 
    1. Turn ignition switch OFF.
    2. Check combination meter and fuel level sensor unit terminals (meter-side and harness-side) for poor connection.

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair or replace terminals or connectors.

  2. CHECK FUEL LEVEL SENSOR UNIT CIRCUIT 
    1. Disconnect combination meter connector and fuel level sensor unit connector.
    2. Check continuity between combination meter harness connector and fuel level sensor unit and fuel pump harness connector.

      Connector

      Terminal

      Connector

      Terminal

      Continuity

      C5 (with VQ40DE)

      C37 (with VK56VD)

      2

      M24

      12

      Yes

    3. Check continuity between fuel level sensor unit and fuel pump harness connector and ground.

      Connector

      Terminal

      Ground

      Continuity

      C5 (with VQ40DE)

      C37 (with VK56VD)

      2

      No

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair harness or connector.

  3. CHECK FUEL LEVEL SENSOR UNIT GROUND CIRCUIT 
    1. Check continuity between combination meter harness connector and fuel level sensor unit and fuel pump harness connector.

      Connector

      Terminal

      Connector

      Terminal

      Continuity

      C5 (with VQ40DE)

      C37 (with VK56VD)

      5

      M24

      24

      Yes

    2. Check continuity between fuel level sensor unit and fuel pump harness connector and ground.

      Connector

      Terminal

      Ground

      Continuity

      C5 (with VQ40DE)

      C37 (with VK56VD)

      5

      No

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Repair harness or connector.

  4. CHECK INSTALLATION CONDITION 

    Check fuel level sensor unit installation, and check whether the float arm interferes or binds with any of the internal components in the fuel tank.

    Is the inspection result normal?

    YES

    Inspection End.

    NO

    Install the fuel level sensor unit properly.