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This category contains a list of Diagnostic Trouble Codes (DTCs) specific to Hyundai vehicles.

Hyundai DTC Codes

Diagnostic Trouble Codes (DTCs) are codes that are generated by your vehicle’s onboard diagnostic system when there is a problem with the vehicle’s emissions, ignition, or fuel systems. These codes are stored in your vehicle’s computer and can be read using a diagnostic tool. Each… Read More »Hyundai DTC Codes

How to Fix Hyundai P420 DTC

Hyundai P420 DTC Code

If you’re seeing a “P420” error code on your Hyundai Elantra, it could indicate a problem with the vehicle’s exhaust gas recirculation (EGR) system. The EGR system is an emissions control device that helps reduce the number of harmful pollutants released into the atmosphere by… Read More »Hyundai P420 DTC Code