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 ...

A range of 2026 buyer’s guides and MSN automotive features identify standout OBD-II scanners and diagnostic tools for both DIYers and professionals. Reviews emphasize capabilities such as live data ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The check-engine light suddenly appearing on your dashboard is enough to dampen any drive. For the ...

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 ...

Vehicle Tech I drove the Lexus RX 450h+ for a week — it’s a solid blend of gas and all-electric power EVs I drove the Subaru Uncharted for a week — this $35K EV is an undercover urban road warrior EVs ...

Modern OBD-II scanners let everyday drivers access their car’s diagnostic trouble codes, live data, and system health without a mechanic’s visit. From budget-friendly Bluetooth adapters to pro-grade ...

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 ...

Sponsored Content. We may receive a commission on purchases made from links. Let's replay a scenario that is likely rather well known among the automotive inclined. You are driving your 2005 Cadillac ...

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 August 2025 with new products and information. That little yellow check-engine light is sneaky. Most of the time, you forget it could be there. But when it detects an issue ...

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?