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Home >> Infiniti >> 2014 >> Q50 Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter, Warning Lamp & Indicator (Except Hybrid) >> DTC/Circuit Diagnosis >> Fuel Level Sensor Signal Circuit >> Component Inspection

Component Inspection

  1. CHECK FUEL LEVEL SENSOR UNIT AND FUEL PUMP (MAIN) 
    1. Remove the fuel level sensor unit and fuel pump (main). Refer to "REMOVAL AND INSTALLATION ".
    2. Check the resistance between fuel level sensor unit and fuel pump (main).
      Fig 1: Checking Resistance Between Fuel Level Sensor Unit And Fuel Pump (Main)
      G09161388Courtesy of NISSAN NORTH AMERICA, INC.
      Terminals Condition Resistance (Ω) (Approx.) Height [mm (in)]
      Fuel level sensor unit and fuel pump (main)
      2 5 Full(1) (A) 44 183 (7.20)
      Empty(1) (B) 142 26 (1.02)
      (1) When float rod is contact with stopper.

      Is inspection result OK? 

      YES: GO TO 2.

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

  2. CHECK FUEL LEVEL SENSOR UNIT (SUB) 
    1. Remove the fuel level sensor unit (sub). Refer to "REMOVAL AND INSTALLATION ".
    2. Check the resistance between fuel level sensor unit (sub).
      Fig 2: Checking Resistance Between Fuel Level Sensor Unit (Sub)
      G09161389Courtesy of NISSAN NORTH AMERICA, INC.
      Terminals Condition Resistance (Ω) (Approx.) Height [mm (in)]
      Fuel level sensor unit (sub)
      1 2 Full(1) (A) 7 14.7 (0.579)
      Empty(1) (B) 142 184 (7.24)
      (1) When float rod is contact with stopper.

      Is inspection result OK? 

      YES: INSPECTION END

      NO: Replace fuel level sensor unit (sub). Refer to "REMOVAL AND INSTALLATION ".

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