Hi, I've been trying to find out how to trace the wiring on my 2004 TJ unlimited to the high beam on the left side. I think there's a loose wire or a broken one but not sure where to be looking. Everything works normally except for when I flip on my high beams. The left one goes dark. I've tested the lamp, and it works fine. No bad fuses anywhere as far as I can tell. Right side is normal. Any ideas?