Check that plug. What I'm reading, I'm thinking that'* the challenge. Just to be safe check the front wheel sensors too

Will do. I can get it into a bay on Saturday. I will keep you posted!!

Are your rear tires the same size?

yep. all 4 are 225/60/16

to me it sounds like two separate problems and if you fix the MC you will be able to see whats up with the AWD. i wonder if the BCM is the same on that venture you were talking about?

it looks to me that underbody plug in the rear would be EBCM harness coonnector. That could be your only problem. the MC is operated via class 2 serial data. there is only one data link to IP wich also operates other functions of IP. Therefore since your MC works in friends vehicle then your problem lies elswhere in vehicle.

these are the individual control circuits for each light mode

sorry thats not going to help you. Maybe this one will

Well I crawled under it to "just look" and it is unplugged in the rear axle. Im afraid to mess with it since it is unplugged. Not sure what problems I may cause if I try to plug back in and go from there......

What do you mean "it'* unplugged from the axle"? Is there no place to plug it back in?