On my 2000, the TCCM got fried by water leaking into the cabin. I am throwing a p1875 and there is corrosion on the module and the connectors.

Can I drive the vehicle with the module completely unplugged? Like regular RWD? Would it damage the drivetrain in any way driving like this?

 

It will still drive i drove around for a few days without mine while i waited for parts. Didnt have any issues and seemed just fine other than the fact that 4wd doesnt work.

 

X2. Just means you have non-functioning 4WD.