Hello guys, need some help from the electrical gurus in this group. What could cause the climate controls to sporadically fail? (No rear defrost). Every once in a while I turn the truck on and it would be blowing cold air to the floor. I can control de fan speed but nothing else works and this morning I noticed that the Auto headlights won't work either. Drove my kids to school freezing our assess off and I turned lights on manually. Got there and restarted the truck and it was all working again. I tried restarting the truck several times before and pulled the Hvac fuse and nothing worked. I even ordered the climate controls online thinking that was the problem (don't have it yet). Any ideas? It's driving me nuts. Thanks!