There are a lot of posts in this thread, please excuse my not reading through all of them to search for an answer.
So I had time yesterday to use the Bluetooth MX and the Alpha app to change the tire pressure settings on my truck. I paired it to my phone, opened the app and started looking around. I didn't make any changes at this time.
Wife calls me in for lunch, I turn off the truck, unplug the MX, had lunch and came back out to the truck.
I plug the MX back in, turn the key on, and I get messages....Service ABS, service trailer brake, Part assist disabled, 4wd system disabled.
I turn the key off, unplug the MX and start the truck, messages are still there. Go for a ride, speedometer is not working, ABS light is on.
I did pull a code...U1412 "Implausible vehicle speed receive"
I did not drive the truck again until today, that's when the service electric throttle message came to join the others.
Any ideas?
2017 2500 Tradesman 6.7 68RFE