Originally Posted by Kabigon
A malfunctioning BCM could cause any or all of the OP's problems.
You shouldn't assume that there is no power when a module is "playing dead".
YOur right... never assume anything.. Without actually being there to see, it was the first starting point on journey to finding the problem.. always eliminate the obvious. By checking the fuse first, you know that it is not the cause then its on to the next link in the chain... Yes a bad BCM can cause this stuff. but its always good to walk through the system and look for trouble. especially if a module has failed to make sure an external problem didnt take out the module. (like a short).. which could just kill a replacement module just as quickly.
We're all still learning about this car and how it works... OP keep us posted on what conclusions they come to...