I guess GM smartened up and ran the power assist through a different circuit, lol

On the 2nd gen w-bodies (possibly 3rd gen as well) the brakes are electric assist, and with no ABS fuse in, no power assist...

 

You're right, finding the problem is the hardest part. Diagnostics is not my area of expertise.
I was able to get the sensor off of the original hub thatI saved. I don't know if it will fit the replacement hub or not, it's hard to tell. I think the hub assembly is still under warranty, I just looked it up, it was replaced in April along with front pads and rotors. I wonder if it's worth the effort of replacing the whole thing, or if I should just solder the wires. I wonder if it will just happen again if I put a new one on.

 

Got the new hub/bearing assembly. I was thinking about just repairing the wire, but I guess if it's free I should just swap out the whole thing.