Turn your smartphone into a professional car diagnostic tool with a $15-30 OBD2 adapter and free apps that read engine codes in seconds.

An OBD2 (On-Board Diagnostics II) scanner can provide information about the status and health of various vehicular systems.

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 ...

Everyone knows you probably shouldn't continue to drive your car once a warning light shows up on the dashboard, but many of us continue to anyway. If you don't want to go running to the mechanic ...

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The Ancel AD310 OBD II Diagnostic Scanner is just $24 right now, $12 less than the $36 it’ll normally run you. Over 20,000 ...

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Our entire lives are run through — and directed by — our smartphones, so it only makes sense that your car’s diagnostics would live there, too. Thanks to Bluetooth technology, wireless OBD2 scanners ...

OBD-II diagnostic device BlueDriver interprets engine error codes to suggest what might need fixing, and lets you know if your car is ready for a smog check. Wayne ...

Neither black tape nor a magic marker is the solution when your car or truck's check-engine light comes on. When the light, which is shaped like the outline of an engine, illuminates, do not panic!