I have a 12 JKU Rubicon with about 500 miles now on a RK 1.5 in lift and 34 in BFG KM2's. All control arm and trackbar bolts left loose with full vehicle weight on all wheels then torqued. I had it aligned and the steering centered after the lift & tires. A couple of days ago, driving in the rain, the ESC system kicked in and briefly modulated the brakes. This happened every few minutes but it definitely wasn't slippery enough to break the tires free. Next day the ESC & ABS lights were lit continuously and have been ever since.

My Flashpaq gave me a 'U140B Implausible left rear wheel speed signal received'. I replaced the left rear ABS speed sensor, but after driving ~10 mi, my ESC & ABS lights are still lit and the U140B DTC keeps getting generated. Any ideas or suggestions before I head to the dealer? Any help appreciated