Honda odyssey 08 model strange problem wipers ac indicator lights won't work

I have somewhat the same issue. Randomely the low wipers wont work and neither will the ac. If the wipers decide to work again there is a slight chance i can get the ac back on. A trusted mechanic said a module which controlls what power goes where tends to short out causing problems like mine. There are seeveral things that caan be wronng bbefore this module goes but the process of elimination can be any where from 200- 2000 to fix and everything in betweenn.