I'm gonna read your link and hope it shows how to diagnose the tone ring. I'm down to it being that, or the abs module or the programming that was mentioned or a bad wire somewhere. I've changed all the sensors and cleaned everything, bled the system twice, no codes. Unplugged battery, did the steering wheel calibration, new PCM. Not much left.
Try accessing the OBD-II Trouble Codes using your EVIC. Follow these instructions:If the light is on there should be a code, your scanner is probably just unable to read it. I find ABS codes are funny like that. Take it in and get it scanned.