Why don't wipers,radio and fan work in heavy rain? Chrysler Town and Country.

chris408

I have a 02 Town and Country. When it rains my wipers, radio and fan for heat and a/c go on and off. When the key is on accessory mode they work.

elias

swapping the multi-function relay and 4-season relay could be the solution. (especially if wiggling/tapping the switches does not affect the random behavior in rainy weather. feel free to turn the switches back and forth 100 times across their maximum ranges to see if that indicates whether the switches themselves may require replacement or cleaning.)