Hoping someone on here can help with this. Got the "trifecta" lights, but along with it came the brake light and the speedometer not working. Just got a brand new battery, 4 new wheel speed sensors, and new pads and rotors on all four corners. Cleared the codes, and they can right back. What else could be causing it? Do I need to do a full brake flush? Codes keeps showing both rear sensors and CAN timeouts for the stabilization system. Help!!!

 

By chance do you have the codes? In my experience with the trifecta issue I've faced, the codes significantly helped pinpoint the problematic area.

 

+1 on codes, will certainly help narrow this down

Just curious did you do the work yourself and if not, any chance the shop you hired left one or more of the speed sensor connectors undone?

No need to open the hydraulic system when just changing these components. If you had a shop do it they may have anyway but not necessary for the job you described.

 

Here is the screen shots from my scanner. I do all the work myself, I have an actual shop, not just a home garage. When I did the brake job yesterday, I checked and cleaned the wheel speed connection, did not remove or clean out wheel hubs. What would make the speedo inoperable?