Trouble Codes

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.


Diagnostic Engine Trouble Codes
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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.

P0100 - P0199     P1100 - P1199

P0200 - P0299     P1200 - P1299

P0300 - P0399     P1300 - P1399

P0400 - P0499     P1400 - P1499

P0500 - P0599     P1500 - P1599

P0600 - P0699     P1600 - P1699

P0700 - P0799     P1700 - P1799

P0800 - P0899     P1800 - P1899

P0900 - P0999     P1000 - P1099

P2000 - P3000

You can find Step by step Diagnostic Troubleshooting available in the Online Mitchell Manuals that are only $19.95 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.

Engine Codes Search | OBDII Codes Search
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