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Home >> Nissan-Datsun >> 2017 >> Sentra SL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (1.8L) (2 Of 3) >> DTC/Circuit Diagnosis >> DTC P0181: FTT Sensor >> Component Function Check >> Diagnostic Test
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Diagnostic Test

  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. Refer to REMOVAL AND INSTALLATION .
    4. Check resistance between fuel level sensor unit and fuel pump terminals by heating with hot water as shown in the figure, below.
      G00498927Courtesy of NISSAN NORTH AMERICA, INC.
      Fuel level sensor unit and fuel pump Condition Resistance (kΩ)
      + -
      Terminal
      4 5 Temperature [°C (°F)] 20 (68) 2.3 - 2.7
      50 (122) 0.79 - 0.90

    Is the inspection result normal?

    YES 

    Check intermittent incident. Refer to INTERMITTENT INCIDENT .

    NO 

    Proceed to DIAGNOSIS PROCEDURE .

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