[gtdanielgt]

I worked there for 2 1/2 years... It'll pull the codes and say what they are...If for some reason it doesnt say what they are, the autozone employee should have been smart enough to write them down in a slip of paper and cross reference them in the computer thats in the store and it should have said what it is.

Also, there's a n33t little button on the obdII tool that says 'erase' , this will erase any codes stored, but if its a problem that the computer detects immediately, it will come back on after starting the vehicle.