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Home >> Hyundai >> 2007 >> Santa Fe Limited, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3.3L) (2 Of 2) >> DTC Troubleshooting Procedures >> DTC P0463 Fuel Level Sensor "A" Circuit High Input >> Component Inspection

Component Inspection

  1. Ignition "OFF"
  2. Disconnect Fuel Level Sensor connector.
  3. Measure reistance between terminal 1 and 2 of Fuel Level Sensor.(Component Side)
    Fig 1: Measuring Reistance Between Terminal 1 And 2 Of Fuel Level Sensor
    G05349161Courtesy of HYUNDAI MOTOR CO.
  4. Does the resistance of FLS change as lifting up and down the fuel level float ?

    YES 

    • Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
    NOTE: There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by PCM. Before or after testing PCM on the vehicle, use this function to reuse the PCM on the others

    NO 

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