COMAND operating and display system screen remains dark after starting engine - AF82.85-P-2001A

MODEL 163, 203, 208, 210, 215, 220, 230, 463 with CODE (352) COMAND operating and display system 

Damage code	Cause	Remedy
	Current vehicle voltage.	Do not remove/install COMAND. Point out to customer that in the event of problems the fault can be eliminated by switching off/on (ON/OFF button) the COMAND.