I have an 02 Screw 4x4 and I am trying to figure out why my Overhead Ambient Temperature Does not show up. MY N/S/E/W headings appear, but not ambient temperature reading. Could this be a bad sensor? Maybe a popped fuse? I am open to any suggestions. I searched and found a great deal bout the temperature being off of actual air temp readings, but nothing about it not working. Any help would be greatly appreciated.