Here's what these pint-sized computers do and how you use one. But first, what is an automotive scan tool? Simply put, it's a device that plugs into the diagnostic port found on essentially every ...

The best OBD-II scanners are a must for any car owner, thanks to their ability to unlock the secrets of your car. It doesn't matter how laid back you are, a mysterious light on your dashboard is ...

but it's so small and attractive that it would be a shame to hide it in the glove box. This is an OBD-II scanner that you'll want to show off and use as an extra display inside the car.