hi Loz, thanks for that. once I start the engine it comes on. For example I turn the fridge on, but after a short while it turns itself off !! Normally it will stay on for 24 hr’s before going off until I start the engine again. It’s all pretty odd and not consistent, so difficult to work outThere are, I think, 3 separate supplies going to the camper display, both from the vehicle electrics and also from the camping batteries. I wonder if the camper supply is not working and you have the display function from the vehicle side only and this will shut down when the BCU sleeps (when the interior lights go out on their own).
Test to see if display only works when the interior lights (by the rear view mirror) are on?