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.
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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.