body module

I asked a question about my car .... was informed that the body module could be the problem.... lights, gauges, all sorts of electrical shit goes haywire.... after I shut off the car.... wait about 2 or 3 hours... computer resets and car is fine... happens every day after I drive it for 60 miles or so... What am I looking for with the body module? Is there a plug that goes into it? Is it something that may be loose and needs tightened or snugged up... or needs replaced? I have access to it just not sure what i am looking for to fix the problem? Any hepl would be appreciated... you car guys are the best!!