After two dead batteries on my 2001 Coupe it was taken to the dealer on a flat bed truck. The first report is BCM (Body Control Module) is drawing 4 amp and that is what is killing the batteries. The big unknown at the dealership is to find and understand what circuit is shorted. Just replacing the expensive (heard $1,000) BCM may not fix the problem. They are trying to find the bad circuit and this could be as expensive as the BCM.
Dad..... any experience with BCM current draw issues?