Headlight switch/ tail light problems.

[Project86]

I think I have my issues narrowed down. I've been battling these lights for about two weeks.
Here's what I have going on.

Headlight switch pushed all the way in
I have both turn signals
Step on the brake and both brake lights illuminate.

Pull headlight switch out to first detent for running lights/parking lights
Parking lights up front are on.
Driver rear park lights are on.

Passenger lights are off.


Pull headlight switch all the way out
Headlights, lows/highs work.
Blinkers work front and rear

But I do not have tail light running lights. (Mash the brake and my brake lights turn on

wiring harness is from EZ wiring. And my tail light harness is factory with some of the splices redone and it uses a 4 wire weathertight connector