Need Help! No Taillights, Brake lights, license plate lights or fog lights

[prerunner84]

I'm wondering if anyone could point me in a good direction. I tested the relays and checked all the fuses. I used a multimeter on the relays and a test light on all the fuses. is there anything I can look at? I have power at the tow connection. I'm kinda lost at this point. any help would be greatly appreciated

 

[doru]

all those lights are coming through the tailgate harness. You may have a problem with that harness.
The tow is not on the same harness.

 

[prerunner84]

all those lights are coming through the tailgate harness. You may have a problem with that harness.
The tow is not on the same harness.

failed to mention I don't have any fogs or marker lights either. no power to the fogs but the fuse is getting power to both sides. I checked all relays that I think have a relation with them