T880 Can-Bus confusion.

yesterday was a horrible day.
as soon as i started up the truck the nav-plus went out.
all bay long i had nothing. no radio, no navigation, no bluetooth, no gauges, no speedo or tach. nothing electronic.
every hours or so i would get a Can-bus not responding error message on the dash center display.
had to let it sit overnight to finally shut down the computer and reset Can-bus.


never had this kind of problem with the old non computerized trucks!