End of the story: no blockage, rotted 90 degree connector on the passenger side as most suggested. I will check the driver’s side later when I get some more time. Pulled the inner wheel well plastic, but couldn’t get see the rubber 90 because of my snorkel tube, so I pulled the BCM. Replaced trim and cowl anyway. Still a little damp inside several days later.
I picked up some 3/8 ID tubing, a couple of hose clamps and a brass connector. Took about 10 minutes to pull the body control module, 15 to install 4 inches of tubing to the existing hose and about 20 minutes to put it all back together. Got lucky as all of the connectors seated properly. I noticed one of the back connectors wasn’t completely locked. Mechanic at the dealer got a little sloppy.
I just slid the longer tube through the hole and into the inner fender. I could not find any good 90 degree couplers at Home Depot. I don’t think the tubing will get cut as there shouldn’t be too much movement. Of course, not sure why the original part disintegrated. The interior and end was very gooey! Maybe they use a petroleum product to aid insertion!