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Home >> Infiniti >> 2024 >> QX55 Essential >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter, Warning Lamp And Indicator (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> B1402-11, B1402-13 Fuel Level Sensor >> Component Inspection

Component Inspection

  1. CHECK FUEL LEVEL SENSOR UNIT AND FUEL PUMP (FUEL LEVEL SENSOR) (MAIN) 
      1. Remove the fuel level sensor unit and fuel pump (fuel level sensor) (main). Refer to Removal and Installation .
      2. Check the resistance between fuel level sensor unit and fuel pump (fuel level sensor) (main).
        GNSDB139039Courtesy of NISSAN NORTH AMERICA, INC.
        Fuel level sensor unit and fuel pump (fuel level sensor) (main) Condition Resistance (Ω) (Approx.) Height[mm (in)]
        Terminals
        3 1 Full* (A) 25.5 179.2 (7.05)
        Empty* (B) 125.5 10.2 (0.4)
        2 2 - 0 -

        *: When float rod is in contact with stopper.

    Is the inspection result normal?

    YES>>

    GO TO 2.

    NO>>

    Replace fuel level sensor unit and fuel pump (fuel level sensor) (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).
        GNSDB138360Courtesy of NISSAN NORTH AMERICA, INC.
        Fuel level sensor unit (sub) Condition Resistance (Ω) (Approx.) Height[mm (in)]
        Terminals
        2 1 Full* (A) 65.5 179.9 (7.8)
        Empty* (B) 157.5 10.1 (0.3)

        *: When float rod is in contact with stopper.

    Is the inspection result normal?

    YES>>

    Inspection End.

    NO>>

    Replace fuel level sensor unit (sub). Refer to Removal and Installation .