Component Inspection

2014 Hyundai Equus SignatureSECTION Component Inspection
  1. IG "OFF".
  2. IG "ON".
  3. Connect GDS and select "Diagnostic Trouble Codes (DTC)"  mode.
  4. Using a GDS, Clear DTC.
  5. Select "Diagnostic Trouble Codes (DTC)"  mode again.
  6. Are any DTCs present?

    YES 

    • Substitute with a known-good PCM (ECM) and check for proper operation. If problem is corrected, replace ECM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    • Fault is intermittent caused by faulty HECU, faulty PCM (ECM) or was repaired and HECU memory was not cleared. Go to "VERIFICATION OF VEHICLE REPAIR " procedure.
RENDER: 1.0x

NO RELATED

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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.