Yes very odd,I do have constant power on the brown\white and ground on the black at the display. So the conclusion is a faulty master.
Thx for the info BREWSKI

yes it is. It is odd that it comes up then goes blank. The display communicates with the master controller through CANBus. My guess is there is a problem with the Master controller. The display has a positive and a negative supply all the time if the battery is plugged in. You could check to be sure you have both. I would think the truck would fault out if you lost power to the display.