The cruise control on my 93' GL wont work. It will work sometimes but not always. I checked the fuse, the safety valve on the brake. What else is left? My dad says it is a waste of money to get it looked at by a mechanic. I am going to start doing a 30 mile freeway commute to school and I figure cruise control will be a good thing to have. My dealer's service department says it will cost $70 to diagnose the problem.