Car & Garage
What Is an OBD2 Scanner, and Do You Actually Need One?
That little socket under your dashboard can tell you why the check engine light is on. Here's what a scanner reads, what it costs, and who really benefits.
Daniel Hart
Editor, Car & Garage · Columbus, Ohio
Daniel edits the Car & Garage section. He writes about the plug-in scanners, dash cams and chargers that help drivers understand their cars and avoid unnecessary repair bills, and he is clear about when a professional mechanic is still the right call.
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Guides by Daniel
Car & Garage
Hidden Car Features: What 'Coding' Can Unlock on VW, Audi and BMW
Many German cars ship with features switched off in software. Here is what coding through the OBD port can turn on, and the risks worth knowing first.
Car & Garage
Engine Warning Light On? What to Do in the First 10 Minutes
The engine warning light just came on. Here is how to tell a loose fuel cap from a problem that means stopping the car right now.
Car & Garage
Buying a Used Car? How a Cheap Scanner Can Help
A plug-in scanner costing around $25 to $50 can reveal hidden faults and recently cleared warning lights before you hand over your money.
Outdoor & DIY
Your First Cordless Drill: What the Volts and Amp-Hours Mean
Volts, amp-hours, brushless, combi or driver: a plain-English guide to picking a first cordless drill that matches the jobs you actually do.