I know this is a DMAX forum, but I have a friend that needs some help. He has a Dodge Ram 2500 cummins. A few races ago the ecm died. he had it towed to the dealer and they were able to reload the ecm rather than replace it. The dealer told him that his travel trailer caused the problem. He took the rig to Camping world and thay said the truck is the problem. The intake heater warning comes on, only when towing and not all the time. He is afraid the ecm will let him down again. Has anyone heard of this before?