I know this is not a car forum, and I've put my question to them.
But, I also like a good story so here's one that may make you smile.
For a couple of weeks my Outlander has had a whine in the radio when it's on AM band. You know like a turbo is spooling up.
Annoying but not critical so I ignored it or played FM.
Yesterday was warm enough that I decided to use the AC.
When I pushed the AC button, the AC came on. Good.
But, the wipers and squirters also came on continuously.

Turn off the AC and they stop.
It's progressed from that, to now when I turn on the AC, the wipers make one turn and then stop.......for a minute or so, then repeat,,,, every minute or so..

The upside is that as long as I keep the reservoir full I always have a clean windshield...
Yeah, I've tried manipulating all the buttons, etc. to isolate it and it's not completely controlled by the AC button, but that certainly does make it react.
So stop laughing and come and fix it.