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

Known as OBD II, that standard was implemented for the 1996 model year and is still in use today. Previous iterations of OBD were retroactively classified OBD I.

Did your vehicle's check-engine light just pop on? An OBD-II scanner can provide some direction. We tested a handful to find the best for different situations.

Using an OBD2 scanner is a relatively simple process that can provide crucial information about the vehicle’s electronic and mechanical components alike.

Diagnose auto troubles and check and reset warning lights with some of the best OBD-II scanners on the market. Many of these have been tested by the Gear Team.

The Drive's DIYers show you what an OBD2 scanner is, how it works, how to use one, and which is the best you can have in your home garage.

Did your vehicle's Check Engine light just pop on? An OBD-II scanner can provide some direction. We tested 11 of them to find the best for different situations.

There are many useful tools to keep in your maintenance toolbox—but not all of them are mechanical. And among the electronic ones, an OBD-II scanner can be very helpful for working with modern cars ...