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Seeing your check engine light pop up on your dashboard is never a good feeling. The problem with this system is that a simple warning light can mean many things, some more urgent than others. If you don't want to go running to the mechanic every time a light pops up, you should know it's actually pretty easy to diagnose what those warning lights mean. In many cases, to do so, all you'll need is a trusty OBD2 scanner. Right now, you can save a giant 58% on this Ancel OBD2 scanner at Amazon. It's the best-selling code reader on Amazon, and this is the lowest price it's ever been.

The Ancel AD310 OBD2 car scanner features a traditional design and the ability to scan and erase trouble codes. It's meant to be easy to use for beginners and professionals alike. The scanner was made to work on most 1996 and newer U.S.-based cars and 2000 and newer EU-based and Asian vehicles. It even supports several languages: English, German, French, Spanish, Finnish, Dutch, Russian and Portuguese. The Ancel scanner has a 128 x 64 pixel LCD display with a backlight and contrast adjustment and gets its power directly from the OBD2 data link connector in your vehicle, so there are no batteries or chargers required. Last but not least, it has a 2.5-foot-long cable, to ensure ease of use while connected.

$20.99 at Amazon

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