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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 592 (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 2020 Infiniti QX60. 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 harness connector M24 and fuel level sensor unit harness connector B72.
    2. Check continuity between combination meter harness connector M24 and fuel level sensor unit and fuel pump harness connector B72.

      Fuel level sensor unit and fuel pump

      Combination meter

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      B72

      5

      M24

      27

      Yes

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

      Connector

      Terminal

      Ground

      Continuity

      B72

      5

      No

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair or replace harness or connectors.

  3. CHECK FUEL LEVEL SENSOR UNIT GROUND CIRCUIT 
    1. Check continuity between combination meter harness connector M24 and fuel level sensor unit and fuel pump harness connector B72.

      Connector

      Terminal

      Connector

      Terminal

      Continuity

      B72

      2

      M24

      26

      Yes

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

      Connector

      Terminal

      Ground

      Continuity

      B72

      2

      No

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Repair or replace harness or connectors.

  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. Refer to Removal and Installation .