Welcome to OBD-Codes.com, your headquarters for everything OBD-II related. For more information on what OBD codes are, OBD-II codes explained, explanation of fuel trims, or answers to other …

Get definitions and auto repair information for thousands of OBD-II codes. Look up B, C, U and P codes to diagnose your car problem.

Oct 29, 2025 · After years of writing up estimates based on fault codes, I’ve noticed patterns that each tell a story. Here are the check engine light codes my team saw most often, what they mean, and …

May 15, 2023 · The engine codes complete list is an invaluable source for diagnostic trouble codes (DTCs) related to a car’s OBD-II systems. It includes codes for the powertrain system, network and …

This list contains standard diagnostic trouble codes (DTC's) that are used by some manufacturers to identify vehicle problems. The codes provide below are generic codes that may not apply to all vehicles.

Find out what your OBD-II code means by using this list of standardized diagnostic trouble codes common to all vehicle manufacturers.

Enter an OBDII code or describe your car issue to receive expert, AI-assisted repair guidance. Try questions like: “What does a bad ECM mean?”, “P0420 code meaning”, or “Infiniti G37 window won't …

Apr 10, 2025 · To make your job easier, we’ve compiled a guide covering the most common diagnostic trouble codes and their meanings. This helps you not only understand why the check engine light is …

Mar 9, 2024 · At CheckEngine.codes, we understand that the check engine light can be a source of anxiety for many drivers. That’s why we’ve curated an extensive collection of user-friendly guides, …

Jun 20, 2021 · Looking for information on an OBD2 code you got from your code reader? Search our database for diagnostic trouble code articles. Start here.