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

If you see a light illuminated on your dashboard, you can use an OBD2 scanner to determine what's wrong with your vehicle. The "OBD" in OBD2 stands for onboard diagnostics.

Since the mandate of the OBD-II port in 1996, auto mechanics have accessed vital information about your vehicle by tapping into its onboard computer using a code reader.

Some scanners are also listed as “OBD2 scanners.” Post-1996 Car: Any vehicle made after 1996 will have the required OBD-II port and diagnostic system to work with the diagnostic tool.

The Ancel BD310 is our choice as the Best Display OBD-II Scanner for DIY Use. We loved the scanner's happy medium between corded and Bluetooth capabilities and felt the app's interface was excellent.

The Ancel BD310 is our choice as the Best Display OBD-II Scanner for Home Use. We loved the scanner's happy medium between corded and Bluetooth capabilities and felt the app's interface was ...

Best OBD-II Scanners of 2025, Tested Get the read on your car issues with an OBD-II code reader. I tried out some of the top brands on the market to find the best one for your needs.

The Ancel BD310, the Gear Team's Best Overall choice for home OBD-II scanners, offers versatility with both corded and Bluetooth capabilities. In Bluetooth mode, its free app is simple to navigate.

The Ancel BD310 is our choice as the Best Display OBD-II Scanner for Home Use. We loved the scanner's happy medium between corded and Bluetooth capabilities and felt the app's interface was ...

If a professional scan tool housed in a rugged handheld tablet is able to perform with Bluetooth and Wi-Fi communications and has the capability to probe all 10 Global OBD-II Modes as well as ...

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 ...