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Home >> Infiniti >> 2012 >> M35h >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0171 To P0463 >> DTC P0181: FTT 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. Refer to "EXPLODED VIEW ".
    4. Check resistance between "fuel level sensor unit and fuel pump" terminals by heating with hot water as shown in the figure below.
      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: INSPECTION END

      NO: Replace "fuel level sensor unit and fuel pump". Refer to "EXPLODED VIEW ".

      Fig 1: Checking Fuel Tank Temperature Sensor
      G08255696Courtesy of NISSAN NORTH AMERICA, INC.
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