I have interment wipers and they have decided they were not getting enough use this DRY summer, so they are now coming on when the spirit moves them. It used to happen when I hit a bump hard, but now they just come on whenever. Do I need to replace the switch, or is there an easier fix, maybe something loose? Any help would be appreciated. Good lord. The rod up that man's butt must have a rod up it's butt.