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Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Automatic >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Gauges & Instrument Panels >> Meters And Gauges >> Meters And Gauges >> Trouble Diagnoses >> Inspection/Fuel Level Sensor Unit And Fuel Pump

Inspection/Fuel Level Sensor Unit And Fuel Pump

  1. CHECK GROUND CIRCUIT FOR FUEL LEVEL SENSOR UNIT

    Check harness continuity between fuel level sensor unit and fuel pump connector terminal 5 and ground.

    Fig 1: Checking Ground Circuit For Fuel Level Sensor Unit
    G01333325Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    NG : GO TO 2.

    NG : Repair harness or connector.

  2. CHECK FUEL LEVEL SENSOR UNIT

    Refer to "FUEL LEVEL SENSOR UNIT CHECK  "

    OK or NG

    OK : GO TO 3.

    NG : Replace fuel level sensor unit.

  3. CHECK HARNESS FOR OPEN OR SHORT
    1. Disconnect combination meter connector and fuel level sensor unit and fuel pump connector.
    2. Check continuity between combination meter terminal 30 (without tachometer) or terminal 44 (with tachometer) and fuel level sensor unit and fuel pump connector terminal 2.

      Continuity should exist. 

    3. Check continuity between combination meter terminal 30 (without tachometer) or terminal 44 (with tachometer) and ground.
    Fig 2: Checking Harness For Open Or Short
    G01333326Courtesy of NISSAN MOTOR CO., U.S.A.

    Combination meter connector 

    OK or NG

    OK : Fuel level sensor unit is OK.

    NG : Repair harness or connector.

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