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?

We may receive a commission on purchases made from links. The OBD acronym stands for on-board diagnostics, a system built into modern vehicles that monitors the performance of the engine and other ...

Our team of experts has selected the best OBDII scanners out of hundreds of models. Don’t buy an OBDII scanner before reading these reviews.

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 ...

Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. The Ancel AD310 OBD II Diagnostic Scanner is just $24 right now, $12 ...

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 ...

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 ...

Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. For nearly 30 years, carmakers have equipped every new vehicle sold ...

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?