I am having a nightmare troubleshoot problem trying to find out why my brake lights suddenly stopped working. I tested the under the dash switch - it appears to work fine ( out = connected, in = disconnected ) and both bulbs in the rear are good, the wiring harness at the lamp box is good - where can the problem be? Also happened at the same time is the left headlight is not working and it's not the bulb - I replaced it and it still won't work. All fuses are intact.