2007,I have no brake lights and third brake light I have checked all fuses and brake pedal switch and the switch is fine and I’m still

I have no brake lights and third brake light I have checked all fuses and checked the brake pedal switch and it operates fine but I still don't get any power to the tail light assembly which is also the brake assembly not sure where to check next with out a schematic

My car has 233000 miles.
My car has an automatic transmission.