Electrical problem.

New wiring harness and using LED headlights. I have a junction terminal mounted on the left inner fender. When everything is connected the lights work but are on either low, high or both. I can't tell. The dimmer switch does nothing. When I unhook the left high beam, the dimmer switch works as it should except for the left high beam. Hook
the left high beam back up and unhook the right high beam and everything works except the right high beam. Same scenario on low beam, if I unhook one or the other, the dimmer switch changes from high to low beam. Any help would be appreciated.

 

I think you have to put some kind of ballast between the stock wire and the LED bulb to make them work properly.

 

That's what people have been telling me. Unfortunately no one can tell me what kind, size, or where to get it. I'll keep searching. Thanks.

 

I have LED headlights in my OT driver Power Wagon , I did nothing but plug them in and they work fine . Try powering one circuit at a time with a jumper wire , I’m thinking crossed wire or bad dimmer switch not switching circuits

 

That's what I did. Each light works fine one at a time.

 

Back in the days, before hot rod wiring harnesses, I would just get the drivers side headlight working with the dimmer switch...then just run a couple wires jumped off the working driver headlight over to the passenger headlight.