AL- reading the instructions was the first thing I did. Thanks for your help.
ALANSD- Brake control module is positioned where it has been for the last 11 years, but maybe I'll take a closer look.
The people at Prodigy were stumped. My Interstate g24 batteries are in less than excellent shape- four years old. Trying to finish season with them. Not sure if that has anything to do with it, especially since this happens when hooked up and power is coming from TV.
After 11 years I think next spring I will be driving to local AS dealer for first service ever, have them check this out and get some new tires. I am running the originals Goodyear Maratthons. Never had a problem with them, they hold pressure all season. So I'm probably one of the few that wouldn't hesitate to replace them with the same again.
Sometimes I wish I were living in the stone age. Then I would know I'm the smartest person in the world.