1990 T800 No Tractor Brake Lights

1990 T800
No tractor brake lights, trailer brake lights work
Turn signals work
Running lights work

I took the middle dash panel off and I have one large pressure switch with 2 red wires. Power on on side until I hit brake then power to other side. So that brake switch is working. There is 2 other pressure switches back there which appear to be for low air and then something else. I can not for the life of me find the issue. I’ve checked all fuses and nothing. I can apply 12v to rear taillights directly and get brake lights so the bulbs are good. Is there another pressure switch somewhere? Or where is the location for the converter box for the rear light wiring.