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.

A car code reader, also known as an OBD-II scanner, is a tool used by car owners and mechanics to diagnose issues with a vehicle’s engine and other systems. OBD-II stands for “On-board diagnostics,” a ...

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.

Code readers and scan tools plug into your vehicle's 16-pin universal Assembly Line Diagnostic Link (ALDL) connector, interfacing with your vehicle's OBD-II system.