I guess I should thank you...so thank you...
though that's not really good news for me! I did change my transmission fluid (don't tell the lifetime fluid people) so was hoping that I'd inadvertently banged the switch while in the neighborhood...or that the fluid change somehow gunked up the switch...though I did see there's only one line coming from the switch...through the driver's side backup light to the pass side light. That's why I was hoping!
Maybe connector; ground? I'm thinking it probably isn't the wiring behind the scenes, but that might be wishful thinking.
Thanks for your reply. Will post answer when I find one, as there seems to be no answer to this prob. online anywhere.