Commercial truck and engine diagnostic trouble code solutions

How It Works

Our system not only allows you to search by the MID, PID, SPN, and FMI, but the OEM flash codes as well. Our database of codes is the largest in the industry, and is continually being added to. We include not only the “quick and dirty” repair information, but have a large library of included step-by-step repair information and wiring diagrams as well.


The diagnostic coverage provided is unmatched in the industry. We cover all on-highway commercial diesel trucks used in North America, both domestic and imports. This coverage includes engine, ABS, transmission, cab controllers, and more.


For less then $0.30 per day you can have unlimited access to truck repair information like never before. Website subscriptions are available in weekly, monthly, or annual subscriptions. All forms of payments are accepted, and access to the website is granted immediately.

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