Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Infiniti >> 2013 >> FX37 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Engine Control System - DTCS P0137 Through P0456) >> DTC P0181: FTT Sensor >> Component Inspection

Component Inspection

WARNING: This page is about a different car, the 2013 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.
  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.
      Terminals Condition Resistance (kΩ)
      4 and 5 Temperature [°C (°F)] 20 (68) 2.3 - 2.7
      50 (122) 0.79 - 0.90
      Fig 1: Checking Fuel Tank Temperature Sensor
      G09001423Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Replace fuel level sensor unit and fuel pump. Refer to "REMOVAL AND INSTALLATION ".