I would like to get this figured out before the meet in a few weeks.... I checked Keydiver's how-to, and according to his symptoms the right light on the column lever goes out. My situation is just that the red light stays on, but the button to set the speed does nothing. I already checked the continuity of the button and yes, it is working. What other things should I be looking for? Maybe busted relays or something?
It is easy to pull codes from the cruise control computer, if I recall. But, I suspect that what the others are saying about the speed sensor is probably your problem. The code won't give you a CEL, but you will read it with a logger/scantool.