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

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.

Tested: Best OBD-II Scanners for 2025 Did your vehicle's check-engine light just pop on? An OBD-II scanner can point you in the right direction—and potentially save you a bundle.

What is an Automotive Scan Tool? But first, what is an automotive scan tool? Simply put, it’s a device that plugs into the diagnostic port found on essentially every modern vehicle.

If you have a car built in the last 30 years, your vehicle comes with a built-in diagnostic port that can make troubleshooting a problem simple.

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

From affordable diagnostics to tech-ready computers, we rounded up the best OBD-II scanners on the market with the help of our friends at the Gear Team.

Looking for information on how to use an automotive diagnostic tool? Our team of experts narrowed down the best tips on how to use an automotive diagnostic tools.

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

Tested: Best OBD-II Scanners for 2023 Did your vehicle's Check Engine light just pop on? An OBD-II scanner can point you in the right direction—and potentially save you a bundle.