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Home >> Infiniti >> 2023 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (Diagnostics) (1 Of 2) >> Component Parts /Circuit Diagnosis >> Fuel Tank Temperature Sensor >> Component Inspection
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Component Inspection

  1. CHECK FUEL TANK TEMPERATURE SENSOR 
    1. Turn ignition switch OFF.
    2. Disconnect "fuel level sensor unit and fuel pump" harness connector.
    3. Remove fuel level sensor unit.
    4. Check resistance between "fuel level sensor unit and fuel pump " terminals by heating with hot water as shown in the figure.
      GNSDB4695Courtesy of NISSAN NORTH AMERICA, INC.

      Terminals

      Condition

      Resistance (kOhm)

      4 and 5

      Temperature [ deg.C. (deg.F)]

      20 (68)

      2.3 - 2.7

      50 (122)

      0.79 - 0.90

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace "fuel level sensor unit and fuel pump".