Hi everybody,
I'm hoping that someone here might be able to help. I have a 97 GMC Jimmy (S series) and I've got to get looked at because of the service engine soon light.
What I'm wondering, is there some place on the Internet (or elsewhere), where one can obtain the data structures and protocols used by GMC? Better yet would be something that could simply be installed and used, but being a programmer I figured that if I could at least get my hands on the specs for this stuff I'd probably be able to write the program myself.
Can one find these things anywhere?
Andy