07 Tundra. 223k mi. At 209k replaced both rear sealed bearings, seals myself. No abs Trac system issues before repair. After repair, started progressing worse throwing codes that used to clear, but now won't clear. Brakes power bled twice. Stops on a dime, firm pedal, but no abs. Code u0126 lost communication with steering angle sensor won't clear. Dealer said bad angle sensor. I replaced it. Did not fix anything. So since the abs sensors are all working and reading and not bad, I'm thinking I got a bad koyo wheel bearing or the shop that pressed it on damaged it during install on the axle. A damaged tone ring inside that bearing could cause the sensor not to read and shut down the abs system. When I pull the sensor on passenger side it is clean and dry. The rear sensor on driver side is covered in clear grease leaking from bearing. My guess is a defective bearing. I cant spend thousands diagnosing. Kid in college. I'm out $400 to toyota dealer who said angle sensor bad. Cheapest sensor is $230. I installed yesterday and codes still would not clear and it would not establish communication with can bus system. Thoughts???? In pic, abs sensor mounts in hole on flat side of flange. Small hole is for its bolt. So tone ring for speed is sealed inside bearing. Can't inspect for damage visually. My guess if grease is leaking internally then something is bad inside even though it's new.
Fixed it. The Toyota dealership said it was the steering angle sensor. The sensor quit communication with the computer on scan tool. I took a chance. Ordered a $15 abs wheel speed sensor on Amazon. Put it in. Codes would not clear. Drove 2 days and all lights are off on dash and codes will clear. And it never once threw a code for a bad wheel sensor. Not even once!
Have you recalibrated for the new steering angle sensor? There are several YouTube vids on how to do it. Some are hacks and some do it with fancy scan tools. Maybe this will help. Unfortunately, it sounds like your drivers side rear wheel bearing may have to be re-done but I would try a recalibration first to see what happens.
I'm completely baffled. Why are you looking at wheel bearings, when you have a trouble code for steering sensor?
Talked with the field engineer for Koyo bearings. He said the bearing leaking grease on the abs sensor was damaged during installation most likely and is causing the abs sensor not to read properly. He said they put the bearings on a heater to expand the metal then slide them on the axle the use a press for the retaining ring. He said this may not have been done.