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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Since the mandate of the OBD-II port in 1996, auto mechanics have accessed vital information about your vehicle by tapping into ...

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. The Ancel AD310 OBD II Diagnostic Scanner is just $24 right now, $12 ...

This article was updated in August 2026 with new products and information. A dreaded check-engine light can foretell a whole host of vehicular issues, ranging from cheap fixes to massive overhauls.

When your check engine light pops on halfway through a long car drive, you instantly get that sinking feeling and think, "Great, how much is this going to cost me?" Unless you're a mechanic, it would ...

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?

If the dreaded engine light has popped up on your dashboard display, you're probably reluctantly planning an imminent visit to the mechanic. Booking our cars in for repair with no insight into the ...

Add Yahoo as a preferred source to see more of our stories on Google. 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 ...