Lookup OBD-II trouble codes like P0300, P0171, or U0335 and get detailed explanations, severity ratings, likely causes, and common fixes. Covers Powertrain, Body, Chassis, and Network Communication codes.
OBD-II codes are standardized diagnostic trouble codes used by vehicles to indicate issues detected by the onboard computer. They help technicians and drivers identify and fix automotive problems.
This tool supports Powertrain (P), Body (B), Chassis (C), and Network Communication (U) codes — including both generic and manufacturer-specific variants.
Yes, the OBD Code Lookup tool is designed mobile-first and works seamlessly on smartphones and tablets, which are used by over 65% of our visitors.
We aggregate generic OBD-II codes and their descriptions from industry-standard sources and match them to the most common root causes and fixes experienced by mechanics and technicians.
Yes, if you already know your code (e.g., from a shop or diagnostic tool), you can enter it directly to get details. This tool does not scan your vehicle — it decodes and explains known trouble codes.
This tool gives you a solid understanding of what the code means and common fixes, but always consult a qualified mechanic before performing complex repairs.