Well, I finally figured out how to remove all of the plastic trim and other body panels to access the camera. I took it out, cleaned all of the contacts, and put it all back together. Nothing.
Guess what? About a week later, the wife drives it and the camera is suddenly working again. It has worked for at least the last week now. What gives?
blankster, I'm ready to learn about the modules you mentioned. If you have anything for this situation, please let me know.