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Nissan Sentra B18 (2020-2025) Service Manual: Fuel Tank Temperature Sensor

Component Inspection

Component Inspection

  1. CHECK FUEL TANK TEMPERATURE (FTT) SENSOR

    1. Turn ignition switch OFF.

    2. Disconnect fuel level sensor unit and fuel pump harness connector.

    3. Remove “fuel level sensor unit, fuel filter and fuel pump assembly”. Refer to Removal and Installation.

    4. Check the resistance between fuel level sensor unit and fuel pump terminals by heating with hot water as shown in the figure.

      Fuel level sensor unit and fuel pump

      Condition

      Resistance

      Terminal

      5

      6

      Temperature [°C (°F)]

      20 (68)

      2.3 – 2.7 kΩ

      50 (122)

      0.79 – 0.90 kΩ

    Is the inspection result normal?

    YES >>

    INSPECTION END

    NO >>

    Replace fuel level sensor unit, fuel filter and fuel pump assembly (with fuel tank temperature sensor). Refer to Removal and Installation.

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