Okay folks, I need some help. I have a 2003 Expedition. I have the HD towing package and I have installed my brake controller under dash using the quick connector that came with the controller. The controller is getting power but I have no power (to the electric brake wire) at the 7-pin connector in the back of the truck. All the other lights (brake lights, running lights, turn signals) work and the trailer brakes work when connected to a different vehicle).
I assumed a fuse but have looked at the obvious ones (number 6 and 29 as identified as being related to the brake controller in the owners manual). I have also read the other posts to check for fuse 10 and relay 05 and 201 and 301. I can find fuse 10 and relay 05 and 201 but where is relay 301? I don't see it on the diagram for the fuse box on passenger side under dash. Any other reason there would be no power to the electric brake wire at the 7-pin connector?