About two days ago while driving my climate control went black (just the digital part). It stays of for about 4 seconds then comes back on? the buttons that are around the digital part remain lighted. The fan stops when this happens to. Any Idea's what this could be. I have also had the check engine light come on. I dont know if this is related or not. I have had it come on several times due to gas cap problems. Car is not running any different.