If you have a check engine light on, a diagnostic tool is great for troubleshooting the problem. Here's what you need to know ...

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

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.

Modern vehicles are rolling computers, with systems managed by embedded hardware and software designed to talk to the manufacturers' diagnostic tools locally and wirelessly. While this complexity ...

Nearly all TTAC readers and writers have wrenched on a vehicle equipped with the OBD-II diagnostic system. Having a handheld code reader in yer box of tools can help douse that infernal check engi ...