Component Inspection

WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.

Rear HO2S (S2) check
1. S2 visual check
  - Check assembling state of S2. (Check the interference between sensor wiring and exhaust pipe.)
  - Check corrosion, contamination, or damage on sensor terminal and connector.
2. Is there something wrong?
  YES
  - Repair relevant component(s) as necessary and then go to "VERIFICATION OF VEHICLE REPAIR ".
  NO
  - Go to next step below
Catalyst converter check
1. Catalyst converter visual check
  - Check discoloration by over-heating.
  - Check deflection or crack (hole).
  - Check noise.
2. Check whether the catalyst converter is genuine.
3. After erase the DTC, drive the vehicle more than 60 secs. according to "Prerequisite Conditions"(Refer to "DTC DETECTING CONDITION "). And then, confirm DTC.
4. Is there something wrong?
  YES
  - Replace the Catalytic Converter with an usable one and check for proper operation. If the problem is corrected, replace the Catalyst Converter and then go to "VERIFICATION OF VEHICLE REPAIR ".
  NO
  - This can be an intermittent fault caused by poor contact of the sensor's and/or ECM (PCM)'s connector. Or, ECM (PCM) memory was not cleared after repair. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace the relevant component(s) as necessary, and go to "VERIFICATION OF VEHICLE REPAIR ".