Modern OBD2 scanners let everyday drivers peek into their car’s brain, revealing trouble codes and live data once reserved for mechanics. With the right hardware and software, you can decode issues, ...

Modern OBD-II scanners let everyday drivers access their car’s diagnostic trouble codes, live data, and system health without ...

It's never a good time when one or more dashboard lights decide to turn on. While some dashboard lights are more common and easier to explain, others require a bit more insight to figure out what's ...

A Bluetooth code reader connected to a vehicle. - Maddox/Harbor Freight It's never a good time when one or more dashboard lights decide to turn on. While some dashboard lights are more common and ...

Add Yahoo as a preferred source to see more of our stories on Google. Among the many pesky issues that can confound do-it-yourself mechanics, one of the most simple yet elusive that impacts overall ...

Modern technology has made diagnosing vehicular issues much easier than ever before. Using an OBD2 (On-Board Diagnostics II) scanner is a relatively simple process that can provide crucial information ...

Having a solid OBD2 scanner in your toolbox is a surefire way for DIYers to save money every time a check engine light comes on. With today’s cars packed full of sensors and electronics, a simple ...

The world of car diagnostics has changed a lot over the last 50 years. Back in the '70s and earlier, a mechanic's most valuable diagnostic tools were usually their eyes and ears. You could figure out ...

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 ...