[Chillie]

I'm in the process of installing the piece your showing. It goes underneath the plastic cover on the driver side foot well on the right hand side where the wires are.

I'm missing that piece but you can see the 2 wires that will clip into it. And the 3rd wire clips in and goes thru that circle rubber cover on the left to connect underneath the van. I don't know if this will solve your problem, but that's where it's located

 

[Chillie]

I need to tow a trailer with my van and the trailer lights didn't work. Nothing worked when tested. I saw Ford installed the tow hitch and wires underneath the van. Then I checked fuses for the trailer were all installed and tested fine. Then I took out the plastic over the footwell and found the wires there but NO trailer brake module was installed. So I have it on order now and should have it early next week. Did you check the fuses underneath the steering wheel?

 

[Chillie]

I have a 2018 but that would explain why they left them out. Can't cause a fire if it's not there. I will definitely be looking for a weep hole there. If none found I'll add one. Thanks for the info!