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.

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 ...

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.

You know something’s wrong with your car—but what, exactly? That’s where an OBD2 code reader comes in handy. These small devices plug into your vehicle’s OBD2 diagnostic port (often ...