Did your vehicle's Check Engine light just pop on? An OBD-II scanner can provide some direction. We tested 11 of them to find the best for different situations.

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

To illustrate OBD-II code grabbing, we are using an Equus 3100 code reader that can be ordered direct from J.C. Whitney. The code reader is plugged into the diagnostic port, the key is switched on ...

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.

We've compiled a list of some of the best OBD2 diagnostic scanners describing their features, specifications, compatibility, and benefits.

If you're lucky, the thing that's broken will be simple enough that a generic OBD II scanner will find a trouble code and you can fix your car.

Already an affordable option, right now you can save over $25 on this diagnostic code reader from trusted brand Ancel.

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.

Harbor Freight carries a wide-variety of products, including diagnostic tools like the Icon T10, but it comes at a price. Here's everything it can do.