OBD II Generic Check Engine Light Codes

Welcome to our listing page for Generic Check Engine Light Codes. This is an all inclusive list intended to help you get not only a code definition, but also some information on what could cause these codes and what can be done to repair the related faults. Generic check engine light codes were set up so that there would be a more standardized system of defining trouble codes from all the vehicle manufacturers. Many of the code definitions may seem a bit strange, so don't be afraid to contact us with any questions regarding definitions.

We have also implemented a new area for posting some responses to our most common code questions, so be sure to visit these pages for some instant info on your check engine light code! These Generic OBDII Check Engine Light Codes are listed numerically and by classification for easy searching. We are adding diagnostic help daily, so look for codes that link to a help screen and check back frequently! If you need more specific help, and are having trouble with a code that is not listed, you can also use the "Get Help" link on the left hand navigation bar. Thanks, and please take a moment to read our Disclaimer before getting started!

I hope you find something useful from our site, and remember to refer a friend! Our goal is to provide you with the knowledge to know what is going on with your car when the check engine light comes on. This allows you not only to potentially diagnose a concern yourself, but also to make informed decisions when having your car serviced by a shop. With the potential costs associated with diagnosing and repairing generic check engine light codes, as well as manufacturer specific codes, knowledge is power! Thanks for stopping in, and for some great info on Oxygen Sensors, EGR Valves and Repair Costs, be sure to check out our Article Index!

We previously had the entire list of codes, but SAE International apparently owns the rights to that. We do have a few code articles which are listed below and linked in blue.

P0010 - P0011 - P0012 - P0013 - P0020 - P0021 - P0022 - P0040 - P0041 - P0053 - P0054 - P0055 - P0059 - P0060 - P0061

P0100 - P0102 - P0171

P0300 - P0301 - P0302 - P0303 - P0304 - P0305 - P0306 - P0307 - P0308 - P0309 - P0310 - P0311 - P0312

P0420

Please note that there are HUNDREDS more codes that aren't listed here. Unfortunately we are not allowed to share the information due to copyright issues. If you have a trouble code other than listed above, we recommend you use your favorite search engine to find more information on the code.

Please verify these Generic OBD II Code descriptions and testing procedures with an appropriate manual. We do frequently update this Generic Check Engine Light Codes list, but technology is constantly in motion. Due to the large amount of free content we provide, we cannot guarantee the accuracy of all information. We bend over backwards to make this information as correct as possible, but sometimes we can make mistakes. Don't tell anyone though!

Back To Top Of Generic Check Engine Light Codes Page