Get the read on your car issues with an OBD-II code reader. I tried out some of the top brands on the market to find the best one for your needs.

Did your vehicle's check-engine light just pop on? An OBD-II scanner can provide some direction. We tested a handful to find the best for different situations.

Before I figured out how to work on cars, onboard computer systems scared me. I’ve had no formal training, after all, so the idea of a car’s complex electricals and countless sensors made DIY work ...

Most of us cringe in fear when the check engine light in the dashboard of a modern 4x4 is tripped on. Your mind begins to spin in frustration wondering what could have triggered it, how bad it really ...

Did your vehicle's check-engine light just pop on? An OBD-II scanner can provide some direction. We tested a handful to find the best for different situations.

We've all been there—that pesky check engine light pops up on your dashboard. Instantly, thoughts of expensive mechanic bills, weeks of it being repaired in the garage, and inconveniences galore flash ...

It happens at the worst time - stuck in traffic or a long road trip - when you see that check engine light flick on. Here's why it may keep returning.

Actron The primary purpose of the OBD-II connection is for emissions testing, but one of the first and most widespread applications available to consumers is the scan tool or code reader.

Seeing your vehicle's check-engine light come on can throw a wrench in your travel plans. It can also feel a little scary: Does it mean your ride is headed for the scrapyard? Or is there a simple fix?

In the Last diagnostics article, we outlined how to retrieve and decipher engine diagnostics for engines running OBD-I engine management computers. OBD or On Board Diagnostics is a subsystem of the ...