Temperature showing -40 and engine light on

I've been having an issue recently with my 2014 ram 3500 where my front windows won't roll down, my mirror adjustment won't work, but I can roll my back windows down. So I replaced the door button cluster and that worked for about a month, replaced it again and it did the same thing. So I replaced the drivers door module and that fixed the window and mirrors problem, but now I have an engine light and my outside temp display on the dash says -40°. Anyone know what this problem is now? I'm guessing the sensor in the drivers side mirror runs through this module and that was just replaced this past winter. So I have no idea what's going on now. Any help would be greatly appreciated! Thanks