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.

Like most code readers, the FIXD module plugs into your vehicles OBD-II port and uses Bluetooth to connect to your phone. The App will connect to your car and give you all the current information.

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

Code readers are typically reasonably priced, easy to use, read/clear DTCs and reset the CEL. Scan tools cost more than code readers.