Variant Code Reset

2017 Hyundai Santa Fe SE, FWDSECTION Variant Code Reset
  1. Check for improper installation of ECM/TCM/ESC/4WD/DCT/ACU/EPB ECU.
  2. Check for wrong 4WD ECU installation.
  3. Check for wrong G sensor installation.
  4. Check for wrong DCT ECU installation.
  5. Check for wrong TCM installation.
  6. Check for wrong EPB ECU installation.
  7. Connect GDS to Data Link Connector (DLC).
  8. IG "ON".
  9. Perform variant code reset in "Vehicle S/W Management  " menu of the GDS. (Fig 1)
  10. IG "OFF" and wait for about 10 seconds, and then IG "ON". Go to "COMPONENT INSPECTION " Procedure.
Fig 1: Scantool Display - Vehicle S/W Management
G12036872Courtesy 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.