The second character identifies whether the fault code is a generic code or a manufacturer specific code. A generic code is the same on all OBD-II equipped vehicles no matter the manufacturer.

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

When your check engine light comes on, it can be tough to figure out why. Since the mid-'90s, though, most cars are made with OBD ports that make things easier.