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

Discover what an OBD2 scanner is and how to use it to diagnose and fix car problems before they escalate into major repairs. Your check engine light can come on a host of reasons, ranging from a ...

While your check engine light is obviously meant for engine issues, it can often give you clues to problems in other parts of the car as well.

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