Discover what an OBD2 scanner is and how to use it to diagnose and fix car problems before they escalate into major repairs.

Harbor Freight carries a wide-variety of products, including diagnostic tools like the Icon T10, but it comes at a price.

But most cars keep a record of any malfunction in their onboard computer, and you can interrogate the system if you have a neat bit of equipment known as an OBD reader. OBD stands for On Board ...

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The current version of the on-board diagnostics (OBD) protocol provides real time data as well as fault diagnostics, thanks to the numerous sensors connected to the data network in the modern vehicle.