Hey guys, My 01 Tahoe is showing a "Check Engine" light. I remember on some other GM stuff, you could put a paperclip across two pins in the under-the dash receptical and count the blinks. One long one was a 10 and short ones were ones. Is this still the case and where would this receptical be located in the Tahoe? and just how do you go about it? Thanks a million for all the past help.