Sorry for the delay, I got pulled away for the day. Give me a minute and I will dig up the fuse panel legend and post it. If you find wetness then get all the way to the metal under the car make sure there's not a puddle. I've seen those get quite a lot of sitting water under some VW's drivers seats where the module lives. If that's what you find then look for a rubber plug in the floor and remove it, it's a drain plug for this issue, pull the other side plug as well to see if anything drains as well. There are plugs under every seat in the Passat's I know. I'm not sure about the other models.
Drying out a fully soaked carpet pad take a bit of time to dry. First thing is to get it to drain then a towel or paper towels will get most of the real wetness and some in the carpet but that will need a heat lamp if you have one. Then the old fashioned style which it to park it in the sun with the windows slightly open, just a crack to let what evaporates escape the car. I you in fact do have moisture in there you will be seeing fog in the windows when it is parked in the heat of the sun. Let us know what you find. Most of the time I've seen this issue the wiring harness leading to the module actually rots away and mod itself survives but with repairable because the plug terminals are what corrodes and breaks off. Lets verify its wet first, then if we need to get into the harness or the module we pick it up from there. I've had good luck with used BCM's for them.
Let us know,
Tuesday, July 14th, 2020 AT 10:58 PM