I kept getting C1175 code (left rear sensor circuit), I diagnosed wires and sensor and decided that module was bad.
I got 3 used ones(marked them 1,2,3), installed #2, now i am getting C1145 (front right sensor circuit) from time to time, #1 was turning on ABS and brake lights w/o any codes(clearing codes didn't help), #3 was turning on ABS light w/o a code. I guess, I will keep getting modules until I find a good one.
Good news is ABS modules don't need to be reprogrammed to PCM, they are plug and play. They are pretty easy to replace, especially if I install only 5 screws instead of 6 (one of them is hard to get)
I used to sell Jeep ABS modules on ebay, they are Bosch modules too, and die all the time.

 

I got 2 more ABS modules, we'll see.