I have the same problem and have yet to have the time to figure it out... I first thaught it was because of all the wiring I had to do with the WD Turbo Brake. but I've checked in with WD and they said I don't mess with any of the wiring pertaining to the Cruise Controll. I have no other light's on the dash that may show that there is anything else affected. And I have yet to take it to FOMOCO. because I am not sure if it has something to do with what I have installed on the beast. Any info or expierences with this would be greatly appreciated.

YMMV

Your Resident Foneguy