Took my Coach into a Cummins dealership for a cruise contro problem. They examined the smart wheel connections, the cruise control module and a circuit board. After two hours of testing they determined that I needed a new mudule ($350). Since they had to order the part, I decided to drive back home (40 miles). When I started the Coach to back it out of the bay, the guidelines on my backup camera did not show on the moniter. It worked before I brought the Coach in for the cruise control.
Now it gets strange. The next thing I noticed was that the cruise control worked. The dealership told me that the module would go bad again and stood by ordering the part. Two questions: 1) Does the cruise control and backup carmera share some wiring? 2) Since the backup camera is tied to the R transmission button to activate, what if any other problems might I have.