Here are the best OBD2 scanners for smarter vehicle diagnostics for modern drivers that are worth checking out.

If you've been involved in automotive repair for a while, you probably know that modern vehicles use onboard diagnostic (OBD) systems to help notify us when there's a problem. The OBD system works ...

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If you purchase an independently reviewed product or service through a link on our website, Rolling Stone may receive an affiliate commission. So your engine light is on. It could be nothing. Or it ...

Q. I have a newer Toyota Camry and an older Ford F-150. What does a scanner do that a code reader cannot do? Can you recommend one that you have found acceptable? A. A code reader will read most ...

When my check engine light came on recently, I decided to try the FIXD scanner to avoid an unnecessary mechanic visit. The device plugs into the OBD2 port and pairs with my phone via Bluetooth, giving ...

The check engine light is both a friend and foe. For those who take their cars to the shop for repairs, it’s a symbol of impending treachery and rising credit card bills. But to those who shoulder the ...

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A scan tool or code reader is plugged into the 16-pin data link connector (DLC) located under the dash of 1996 and newer vehicles. Contributed A scan tool or code reader is plugged into the 16-pin ...

For all its '81 vehicles, GM introduced a computer-controlled engine-management system named Computer Command Control. It became known as CCC or C-3. The engine controller—first called an engine ...

In 2026, OBD2 scanners have advanced from basic code readers to AI-assisted diagnostic platforms capable of interpreting live data, guiding repairs, and improving preventive maintenance. Once limited ...