LEMON Manuals: Even more car manuals for everyone
Home >> Infiniti >> 2017 >> QX50 AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter, Warning Lamp & Indicator (DTC/Circuit Diagnosis) >> 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).
      GNSJSNIA9725ZZ-725Courtesy of NISSAN NORTH AMERICA, INC.
      Fuel level sensor unit and fuel pump (main) Condition* Resistance
      (Approx.)
      Terminal
      2 3 Full (A) 2.5 Ω
      Empty (B) 81.5 Ω

      * : When float rod is contact with stopper.

      STANDARD FLOAT POSITION

      Float position [mm (in) ]*
      Full (A) Approx. 192 (7.56)
      Empty (B) Approx. 32 (1.26)

      * : When float rod is contact with stopper.

    Is the inspection result normal?

    YES 

    GO TO STEP 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. Inspect the resistance of fuel level sensor unit (sub).
      GNSJSNIA9726ZZ-726Courtesy of NISSAN NORTH AMERICA, INC.
      Fuel level sensor unit (sub) Condition* Resistance
      (Approx.)
      Terminal
      2 3 Full (A) 2.5 Ω
      Empty (B) 42.5 Ω

      * : When float rod is contact with stopper.

      STANDARD FLOAT POSITION

      Float position [mm (in) ]*
      Full (A) Approx. 35 (1.38)
      Empty (B) Approx. 203 (7.99)

      * : When float rod is contact with stopper.

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Replace fuel level sensor unit (sub). Refer to REMOVAL AND INSTALLATION .