Discover what an OBD2 scanner is and how to use it to diagnose and fix car problems before they escalate into major repairs.

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 ...

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, ...

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 ...

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 ...

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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 ...

On our never-ending quest to improve this place by listening to feedback from the B&B, we are taking a new tack with these ...

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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 ...