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Home >> Hyundai >> 2018 >> Kona Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 150 (Engine Control System Diagnosis - 2.0L (2 Of 3)) >> DTC P0420-00: Catalyst System Efficiency Below Threshold (Bank 1) >> Verification Of Repair >> Verification Of Vehicle Repair

Verification Of Vehicle Repair

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.

After a repair, it is essential to verify that the fault has been corrected.

  1. Connect scantool and select "DTC" button.
  2. Press "DTC Status" button and confirm that "DTC Readiness Flag" indicates "Completed". If not, drive the vehicle within conditions noted in the freeze frame data or enable conditions
  3. Read "DTC Status" parameter
  4. Is parameter displayed "History (Not Present)" displayed?

    YES 

    • System performing to specification at this time. Clear the DTC

    NO 

    • Go to the applicable troubleshooting procedure.
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