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Home >> Infiniti >> 2024 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (2 Of 2) >> Component /Circuit Diagnosis >> Fuel Tank Temperature Sensor >> Component Function Check
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Component Function Check

  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 FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY : 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.
      GNSDB106706Courtesy of NISSAN NORTH AMERICA, INC.
      Terminals Condition Resistance (kΩ)
      4 and 5 Temperature [°C (°F)] 20 (68) 2.3-2.7
      50 (122) 0.79-0.90

    Is the inspection result normal?

    YES>>

    GO TO 2.

    NO>>

    Refer to DTC Diagnosis Procedure .

  2. CHECK INTERMITTENT INCIDENT 

    Check intermittent incident. Refer to Inspection .Is the inspection result normal?

    YES>>

    INSPECTION END

    NO>>

    Refer to DTC Diagnosis Procedure .

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