I am getting both the advancetrac and ABS warning lights on my 2015 f150 every time I start up.

I had to change a couple of the calipers a few months ago. When fixing them, one of the new ones was defective and wouldn’t bleed fully, so when I drove around the block a couple times trying to rebleed it the lights came on and off. Then I replaced the defective caliper and the braking was normal. The lights come on every time now so I don’t have cruise control among other things.

I’ve tested the wheel speed sensors and they are working and took the truck to get the brakes bled professionally just to try something else and unsure where to go next. Any troubleshooting ideas?

 

IMO, you need to get a better troubleshooting software, something like Forscan. It's similar to Ford dealers software, and can read codes beyond the check engine light. It's free software, just requires a dongle. Good luck.

 

Welcome to FTE moeluk01,

Not a question that gets asked here, but I'm sure someone will see it soon enough who has more experience in that area.

 

Need a tool to read B, C, and U codes.
Brakes are not part of the engine operation and their P codes.
Good luck.