Tony,
Thanks for redirecting my question, I wasn't aware of this posting option. I didn't realize my question was open-ended, I just wanted to know what types of software the professional use. I can't justify buying expensive software just for several uses a year.
Thanks for the interest and discussions.
No problem. The diagnostic software question is a tough one.
What it amounts to, is what all do you want it to do and how much are you willing to pay.
You can go as cheap as one that will read codes from $69-up, to a full blown scanner with ABS, SRS and OBD1 & OBD2 scan capabilities that can run into the thousands of dollars. So answering the question can be a tough one to do.
Some guys use the Snap-On Solus, OTC Genysis, OTC Nemysis, OTC Pegysis, Snap-On brick (MT2500) or the factory OEM scan tools.
There are a list of others, but those seem to be the most common ones that I am aware of.