Lost Cruise Control

I could not find any blown fuses. Watched some youtube videos and one guy mentioned that LED lights might cause the computer to stop letting the cruise control do its thing. Also watched the video about the sensor on the bottom of the master brake cylinder. The sensor in under the master cylinder and no way to get to it without dismantling the water reservoir at a minimum. Autozone can't find the part. Ford dealer says they cant work on RVs. Gonna try a couple of private mechanics in town.