The check engine light comes on, your stomach drops, and you have two choices: drive to a shop and pay a diagnostic fee ...

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️ Editor's note: This product category requires new testing about once a year. We'll update this article with the most recent information when it's available. Modern cars are technological marvels, ...

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 ...

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 ...

Modern OBD2 scanners now range from basic code readers to advanced, professional-grade tools with bidirectional control, ECU programming, and real-time data streaming. These devices, often paired with ...

We've compiled a list of some of the best OBD2 diagnostic scanners describing their features, specifications, compatibility, and benefits. The automotive industry has a huge variety of OBD2 scanners ...

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 ...

Everyone knows how imperative it is to service their vehicles to make sure they’re running smoothly and efficiently. But even if someone is following the manufacturer-suggested service intervals and ...

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 ...