How to Wire Combined Motorhome to Separated 2022 Ford F-150 Light Wiring Circuits

Question:

Hi, I bought a new 22 ford f150 a year ago and planned to tow it behind my Entrega Cornerstone. Due to Covid we just got around to installing the Roadmaster tow bars and everything. My problem is the truck wiring has single wires for each brake, parking, and turn signal while the motorhome is a combination of wires. Any way you could help me with my wiring problem? Thank you very much

asked by: Clyde C

Expert Reply:

The wiring kit I recommend using for your 2022 Ford F-150 is the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 which is suitable for a few different wiring setups. I've attached a photo showing how to run the wiring and connectors for a Combined RV/Motor Home wiring circuit to a Separate Towed Vehicle wiring circuit that you can follow along.

It looks like you'll also want to install the Battery Charge Line Kit # RM-156-25 for flat towing as well since your battery level will drain over time.

Attached are some wiring videos for you to check out.

expert reply by: Jon G