2005 wiring issues
 

I have a 2005 Mountaineer. My brake and signal lights on my trailer have stopped working. I have running lights. All lights work on truck. I checked for power at plug and also disconnected harness and checked for power there and nothing but running lights. I am lost. I’ve pulled up several fuse box wiring diagrams and they conflict. Any idea where the fuse and relays are for the trailer lights for the signal and brake ?