Imagine quickly diagnosing why your car's check engine light is on. A scan tool, also known as a trouble code reader, can help you identify the problem yourself.

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 Drive's DIYers show you what an OBD2 scanner is, how it works, how to use one, and which is the best you can have in your home garage.

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.

Code readers come in all shapes and sizes. As noted earlier, even cheap ones will get the job done if all you plan to do is read and clear trouble codes. Perfectly usable, though very simple ...

A code reader for your car can mean the difference between dropping everything and heading for the mechanic and letting that warning light ride a little bit.

We recently got our hands on the new GoTech mobile OBD-II diagnostic tool and put it through its paces on several trucks in our fleet. The GoTech is more than just a code reader, though.

Reading and understanding OBD2 trouble codes today couldn't be easier. This is partly because of tools like Innova's Digital CAN OBD2 Code Reader. The Innova code reader performs tasks from the ...

The Motopower OBD2 Car Code Reader is 33% off at Walmart right now. Shoppers say it's "very easy to use" and offers peace of mind before visiting a mechanic.