Cruise control 2008 Avalanche don't work
 

My Cruise control on my 2008 Avalanche stopped working after power washing engine compartment. I checked fuse, tail light, and no LED light or any add-ons. Also I checked for any loose wire plugs-ins (like I know what any are for) that might of been knocked loose by the power washer. It must be something simple, it worked great before the under the hood wash. It did work when I turned off the engine and went back on the freeway, but now it does not work at all.