My reverse lights are working again. The end of last year they quit working. Changed the bulbs, new reverse switch, fuse was not blown. Voltage tester showed good voltage at all points I checked. I was baffled, 3 shops where baffled. I gave up, good thing my driving (most of it) is at off peak times. Tonight I noticed they where magically working again. No clue how, maybe the ghost moved to the windshield wipers.