I have been trying to get mine working for a while now and just need some help figuring out the problem. I used the Factory Service manual to check most of the components. I repaired all of my vacuum lines and have a very strong vacuum to the servo. The elctrical connection to the servo is also correct according to the manual. The PCM test indicated either the stop lamp switch or the speed control switch. I cant figure out how to test either of these components and I am assuming it is not the stop lamp switch as my stop lamps work. Any help would be greatly appreciated. I have searched here and on cherokee forum and cannot quite figure out what to do next.