No power to trailer wiring

[kctyler]

I went to use my hitch yesterday for the first time. I have no power going to it. I checked all fuses, and all taillights work. I researched a bit and found that there are 2 posts under the hood nest to the fuses. Should those have wires to them, mine do not.

2007 Yukon Denali

 

[t.stimpson]

Yes you have to wire up power to the brake controller wiring for it to work. This should help. https://www.etrailer.com/faq-tb-0007-2007-2009-GM-Full-Size-Truck-Brake-Control.aspx