Interesting Headlight Situation

Hey all,

So my truck has been converted to H4 LED headlights by a previous owner.

I noticed that i was blinding people and upon further inspection, i realized a couple things.....

1. High beam is on whenever low beam should be on. When i flash high beams, the low and hi beam engage.

2. When LED Fogs are turned on the low beam comes on as well. So Fog, Low, and Hi will all be on at the same time with low beam selected and fogs turned on.

I’m going to look at this later just wanted to see if my more experienced Tundra brethren may know what’s going on before i start tinkering.

My first thought is that the polarity is off. But i don’t know why the fog lights and the low beams would be linked together. It seems they should be on separate feeds but maybe they are dependent on one another?? I’ve not had a “newer” vehicle with factory style fog lights before so I’m unsure about how they are supposed to function.