Check Engine Light Trouble Codes for Old and New cars and Trucks. Some Vehicle Specific Codes.
Full list of OBD II Diagnostic Trouble Codes. If your Check engine light is on you may have a serious problem. Scan your codes and follow the chart to determine what the code means. Some parts stores will scan your codes for free. Autozone is one place that will give you the code number. If you don't find the information you need here, simply Ask your Car Question for FREE.
Try the free engine code look up service. You will be provided with automotive engine code descriptions, possible causes, possible symptoms, how the code is detected and more.
We used to have the code information posted here but the Lawyers for SAE International have politely requested that the OBDII Diagnostic Codes and Definitions be removed from this page. So we regret to inform you that we have had to comply and remove them. Any availability of SAE copywriter works will continue to fall under the Electronic Reserve Guidelines of the Fair Use act for future availability to the public via controlled means.
We are however trying to work out some kind of agreement with SAE to get the diagnostic trouble codes back up soon.
You can find Step by step Diagnostic Troubleshooting available in the Online Mitchell Manuals that are only $16.99 and well worth the money.
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In the mean time feel free to look up your individual codes in the space provided. This will save you time and provide possible causes and diagnostic tips for each code.