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Your inexpensive OBD-II scanner can tell you more than why the check-engine light is on

An OBD-II scanner can do much more than read check-engine codes. These five features can help you diagnose problems faster ...
Car and Driver

Best OBD-II Scanners

After all, that’s precisely what the shop will do—so why not arm yourself with the same info? These days, there’s a huge range of scanners available, from basic plug-ins to high-tech Bluetooth models ...