Trouble Code Lookup


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View all P Codes, B Codes, C Codes, U Codes

Welcome to GM-Trucks.com’s ODB II Trouble Code Search. If your computer is throwing an error you can use this tool to figure out what is wrong. Alternatively, you can see all of the P, B, C, and U codes to print for reference.

To begin your search, please enter part or all of the trouble code your looking to identify, then press Search. For example, P0146 will get the following result:

Searched For: P0146

P0146      O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)