(Not a A-Body) 2001 Dodge Ram Truck "No bus" Code, Anyone!?

One of the modules is shorting out the buss wich is the communications network for all the modules in the truck you can unplug the modules one at a time to see if the no buss message goes away I have had 2 trucks recently with this same issue both ended up being the pcm. There are companies that repair or rebuild pcm's you send them the old one with the vin and the mileage and they send you back one.

Brian