Connecting a 3rd Brake Light on an In-Bed Camper to a 2022 Ford F-150 Lightning

Updated 12/19/2022 | Published 12/17/2022

Question:

I have a new F150 2022 ford Lightning truck. I put a topper pop up camper on the Lightning and I need to connect the brake light on the topper to the truck. Is there a harness I can use that plugs into the back of the trailer harness? I am considering the Leer #300200. I have included a picture of the back of the truck with the topper on

asked by: Karin

Helpful Expert Reply:

I do have an option for you that will allow you to not have to splice into your taillights, but we do not have a product that is similar to the Leer 300200 harness.

The Tekonsha T-One Vehicle Wiring Harness # 118384 will connect in line of the factory 7-way already on your F-150. This gives you a 4-way flat trailer connector. To that you can attach the Wesbar 4-Pole Flat Connector w/ Jacketed Cable # W787270. This cable gives you a place to disconnect your wiring if you need to remove your camper. At the end of this cable near the light is the best place to splice in the 3rd Brake Light Logic Module # PP20-702.

You will connect the yellow wires from the module separately to the green and yellow wires of the Wesbar connector. The green wire from the module will connect to the brake light portion of your 3rd brake light. The white wire from the Wesbar connector will act as the ground wire for your 3rd brake light. If your 3rd brake light has a 3rd wire for the running lights, it can connect to the brown wire in the Wesbar harness.

expert reply by: Scott S