Car diagnostic codes – what they mean and how to deal with them

Decoding OBD-II diagnostic trouble codes

Understanding fault codes is an important part of vehicle maintenance. Our full list will help you interpret the codes so you can troubleshoot your car yourself.
List of the most common DTC codes – find the meaning and learn how to solve the problem

Top 50 fault codes

View the full list of codes
The ECU fault code can tell you exactly what problem your vehicle has

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The ECU fault code can tell you exactly what problem your vehicle has

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