The check engine light is the worst kind of message. It tells you something is wrong without telling you what, and the dealership will happily charge a ...

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 ...

OBD2 diagnostics apps that can run on Android devices have become quite popular lately, as they make it possible to check fault codes, access sensor information, and get an insane amount of details ...

The range of vehicle diagnostic tools available for mobile phones is expanding. We covered some upcoming models at last year's Specialty Equipment Manufacturers Association convention. Now PLX, one of ...

An OBD2 scanner that can read your vehicle’s trouble codes is a critical tool for DIYers. But even if you don’t like turning wrenches yourself, it’s hugely helpful to be able to get an idea of what’s ...

When confronting an underhood issue with your car or truck, you have two choices: you can rely on a third party appraisal, or you can plug into this great buy on the X431 Pro III diagnostic tool. When ...

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 ...

With layers of sensors, control modules, and software managing everything from engine performance to safety systems, t ...

Add Yahoo as a preferred source to see more of our stories on Google. Modern cars are technological marvels, and understanding what’s happening under the hood has never been more important—or more ...

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 ...