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HOMESERVICE MANUALSHYUNDAI2014SANTA FE GLS, FWDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM DIAGNOSIS (2 OF 3)DTC P0457: EVAPORATIVE EMISSION SYSTEM-LEAK DETECTED (TANK CAP LOOSE/OFF)DTC INSPECTIONMONITOR GDS DATA
2014 Hyundai Santa Fe GLS, FWD

Monitor GDS Data

2014 Hyundai Santa Fe GLS, FWDSECTION Monitor GDS Data
  1. Connect GDS to Data Link Connector (DLC).
  2. IG "ON".
  3. Select "Diagnostic Trouble Codes (DTC)"  button, Press "DTC Status" to check DTC's information from the DTCs menu.
  4. Read "DTC Status" parameter.
    Fig 1: Display - DTC Status Parameter Current Data
    G09273388Courtesy of HYUNDAI MOTOR AMERICA
  5. Is parameter displayed "Present fault"?

    YES 

    NO 

    • Go to " 1 Evap. Leakage Test" as below with GDS.
  • Evap. Leakage Test 
    1. Cool the vehicle down for about two hours to prevent misdiagnosis.
    2. Install GDS and IG "ON" and then clear DTC.
    3. Select and press "EVAP. LEAKAGE TEST" mode in the GDS.
    4. Check if the vehicle is under test conditions as below. (Fig 2)
    5. If OK, Start engine and restart Evap. Leakage Test again. (Fig 3)
      Fig 2: Display - EVAP. Leakage Test Screen
      G09273389Courtesy of HYUNDAI MOTOR AMERICA
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.