I have searched the threads and this malfunction that I am having is not to be found. 05 2500HD LT. Drivers heated seat comes on full blast (without any input from me) then cycles down in temp but stays on at least one bar. I can turn it off but then it does the same thing, again and again and again. It is not moisture or humidity related as this has been occurring for the last six months under all weather and temp conditions. I disconnected the seat elements and can hear the relay click and the switch lights flash but don't stay on.(due to the elements being unplugged) All the threads that I could find point to moisture in the switch. I'm sure that is not the case here. I don't want to just throw parts at it so any advice is well appreciated.