All........My reverse lights and "high" brake light has stopped working on my 2012 f350 extended cab truck. I have checked the #15 fuse on the passenger side fuse block (inside of cab) and found it good. While the fuse was removed, I check for power in that location and found the correct power coming to the fuse. I checked the bulbs and found them good also. With the bulbs removed, I checked for power at the reverse light bulb location and found no power coming to this location. Is there another fuse or relay between the inside passenger side fuse block and the reverse lights and high brake lights? Thoughts?