2017 Hyundai Azera BaseFACTORY OEM SERVICE PROCEDURE

Component Inspection

  1. Replace the HO2S.
  2. Clear DTC with GDS.
  3. Start the engine and warm it up until the radiator fan comes on (more than at least 10 minutes).
  4. Drive at a steady speed between 45-55 mph (72-88 km/h) for 120 sec.
  5. Stop and then maintain idle state.
  6. Check if O2 sensor monitoring readiness is complete.
  7. Does the GDSl show DTC P0153?

    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 

    • Troubleshooting is finished.
Factory Service Tools

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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.

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