Hello, Newb here.Did a search but could not find anything specific to my problem? The display is completely black on the HVAC control module and have no response to temperature/fan speed or recirc or other controls. The problem is intermittent When the display goes very dim or completely black is when functions stops working.Disconnected the battery for 24 hrs.and pulled all fuses that the system uses. Replaced all fuses and reconnected battery, Started vehicle and the display was dim but all the controls worked and the ac/heat both worked.Got out of vehicle to close the hood and got back in and the display was black and fan blowing cold air! Anyone else had this scenario!