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Home Articles Fault code definitions (DTCs)  

Where can I find fault (or trouble) code definitions (DTCs)?

Fault code definitions, trouble code definitions or DTC definitions can be a challenge to find.

Our online database of OBD-II, EOBD and VAG (VW/Audi group) fault code definitions might be able to help. It contains over 21,000 definitions and is constantly growing - please click here

Other good sources of fault code definitions are:
  • Diagnostic tool user manuals
  • Car service manuals
  • Technical Services CDs
  • Specialist publications, e.g. Autodata
  • Internet search
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