Component Inspection

Check FLS resistance
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 resistance of Fuel sender while lifting up and down the fuel level float.
  
  Fig 1: Measuring Resistance Of Fuel Sender
  Courtesy of HYUNDAI MOTOR CO.
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 interrupts float moment. Erase DTC and drive the vehicle to satisfy the enable condition 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.