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Home >> Hyundai >> 2015 >> Equus Signature >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC P0462: Fuel Level Sensor 'A' Circuit Low Input >> Component Inspection
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Component Inspection

  1. IG "OFF" and Disconnect Fuel Sender & Fuel Pump Motor connector and Fuel Sub Sender connector.
  2. Remove these senders from fuel tank and measure the reistance of Fuel sender while lifting up and down the fuel level float.

    Specification 

    FLS Normal Parameter
    Flat position 8/8 6/8 1/2 3/8 1/8 Warning Lamp ON
    Sender-Resistance (Ω) 4±1 4±1 4±1 16.6±1 58.2±1 71.6±1
    Sub Sender-Resistance (Ω) 4±1 53±1 95±1 95±1 95±1  
  3. Does the resistance of FLS change as lifting up and down the fuel level float?

    YES 

    • Fault is intermittent such as Float was stuck by something. Thoroughly check that any foreign material intrupts float moment. Erase DTC and drive the vehicle to satisfy the enable codition then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    • Substitute with a known - good Fuel Sender and check for proper operation. If the problem is corrected, replace Fuel Sender and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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