- Reaction score
I see from looking at the pics of your RLU that all it's wires were not connected. It looks like the blue/yellow wasn't hooked up, and that's an important one. Normally, headlight power from the safety relay is fed into the RLU on the blue/black wire. It runs out of the unit, up to the hi/lo switch, on that blue/yellow wire. So, I don't think your RLU was doing anything, not functioning at all, lol. The P.O. must have fed power into the blue/yellow wire that the one from the RLU is supposed to connect to. That would explain why your headlight functions without the need for a jumper wire after removing the RLU.