I just discovered the sensor that causes the wind shield wipers to detect rain and activate the wipers in Intermittent mode. I was washing the car today and deliberately set the wipers in that mode and squirted water in localized places. Couldn't find it until I was using the chamois on the windshield and found the black dots around the rear view mirror seemed to be the sensitive area.
Is this new news or am I years behind you guys?
James