thanks for replying ,yes I did take it off and check the module .It seemed good gears were free cable worked freely , the overall condition was very good as the car only has 25,000 mi on it . Next tried a used one and it was the same . My cruise control will work perfectly for 10 mins or so then shuts off , when I turn off the ignition and start the car it works again for 10 mins only . Everything on the steering wheel controls work , horn , radio control etc ,so I'm thinking the clock spring is ok . It seems like something is turning the servo off , I checked the brake pedal release switch and it works properly also ...thanks for your help ...Dave