An OBD2 scanner can be your car’s best friend, helping you diagnose issues before they turn into costly repairs. By reading trouble codes and live data from your vehicle’s computer, you can pinpoint ...

Your check engine light can come on a host of reasons, ranging from a loose gas cap to a faulty engine component. If you see a light illuminated on your dashboard, you can use an OBD2 scanner to ...

Autoblog may receive a share from purchases made via links on this page. Pricing and availability are subject to change. We’ve all experienced the dreaded “check engine” light on the dashboard of our ...

If you own a car, you need an OBD2 scanner. The most basic function of these devices is to tap into your vehicle’s onboard diagnostics system to read and clear engine trouble codes. But then, ...

Seeing your vehicle's check-engine light come on can throw a wrench in your travel plans. It can also feel a little scary: Does it mean your ride is headed for the scrapyard? Or is there a simple fix?

Modern vehicle diagnostics now range from basic OBD2 code readers to advanced scan tools and specialized software like FORScan, enabling both DIYers and professionals to pinpoint issues faster and ...

You’ve probably been there — you go in for a simple oil change, and suddenly the mechanic tells you your transmission needs replacing. Or your check engine light turns on, and what you thought would ...

Getting OBD fault codes and checking the health of your car no longer requires a trip to the service center, as a simple OBD2 adapter, either wired or wireless, allows you to do this from the comfort ...

Seeing your vehicle's check-engine light come on can throw a wrench in your travel plans. It can also feel a little scary: Does it mean your ride is headed for the scrapyard? Or is there a simple fix?

This article was updated in November 2025 with new information. You know you’ve earned your DIY stripes when you can stay calm the moment something goes wrong. And with cars, that moment usually ...