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Cars are more than just oil and steel. Modern models have incorporated electronics and computer chips to help manage and optimize their mechanical components. That means maintaining your car's ...

On-board diagnostics (OBD) means different things to different people. To the guy who still cranks over his '71 'Cuda every morning to get to the plant, it scares him to death. But then again, he's ...

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 ...

Car trouble got you down? When diagnosing a problem in any modern vehicle, your first plan of attack should be to check under the steering wheel. Then plug in a diagnostic tool to your OBD2 port and ...

Men’s Journal aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. It’s something no driver wants to see: a check engine light ...

There it is. On your dashboard. Staring at you, mocking you, making you plot insurance fraud: your car’s check engine light. That little bugger has been on your dash for weeks now and you haven’t been ...

If you own a car, you need an OBD2 scanner. The most basic function of these devices is to tap into your vehicle’s onboard diagnostics system to read and clear engine trouble codes. But then, ...

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 ...

️ 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, ...