Installation of Diode In Roadmaster Brake Light Relay Kit on 2020 Ford F-150
Updated 12/30/2020 | Published 12/28/2020
Question:
I am installing a Roadmaster 88400 brake lite relay kit on a 2020 F150 and I need to install a diode for the brake lite wire. Can you tell me what wires I need to run to the diode?
asked by: Harold P
Helpful Expert Reply:
If you have a Ford or Lincoln that has a neutral tow kit or if your car has a push-button start feature that will not start the engine when the brake fuse is removed, then you need to perform a normally closed installation which involves using a diode-which I believe is the process you're referring to.
I've linked a photo that shows the diode installation when using the Roadmaster Brake Light Relay Kit # RM-88400 that you can refer to, but you will splice into the brown wire on the 4 way that connects to your RV's 4 way plug. You'll install the diode behind a splice in from the brake light relay kit.
I've also linked an installation video of this kit on a similar Ford F-150 that you can use as a guide.
Product Page this Question was Asked From
Roadmaster Brake-Lite Relay Kit for Towed Vehicles
- Flat Tow Brake System
- Brake Light Relay
- Roadmaster
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Vehicle Tow Bar Brake System
- Shop: RV Designer 6-Way Socket - Die Cast Metal
- Shop: Vehicle Tow Bar Wiring
- Search Results: 2 to 3 wire trailer wire converter
- Search Results: 6 way socket
- Search Results: blue ox locking pins
- Search Results: flat tow wiring harness
- Video: Review of RV Designer Custom Fit Vehicle Wiring - Socket 6 Way - RD98SR
- Shop: Trailer Wiring
- Shop: Base Plate for Tow Bar
- Search Results: rvi towed battery charger
- Video: Install: Roadmaster Brake-Lite Relay Kit for Towed Vehicles on a 2018 Ford F-150
- Shop: Roadmaster Brite-Lite 3-to-2 Tail Light Converter for Towed Vehicles
- Shop: Roadmaster Brake-Lite Relay Kit for Towed Vehicles
- Shop: Blue Ox Base Plate Kit - Removable Arms
- Search Results: rvi brake 3
- Video: Let’s Check Out the InfiniteRule Lock Set for Blue Ox Tow Bar Adapters and 2"
- Search Results: rvibrake3
- Shop: CURT RVibrake Towed Battery Charger+ for Flat Towing
- Shop: Blue Ox 6-Pole, Round Pin, Trailer Wiring Socket - Vehicle End
- Shop: InfiniteRule Lock Set for Blue Ox Tow Bar Adapters and 2" - 2-1/2" Hitch Receivers - Qty 3
- Video: Installation: Roadmaster Brake-Lite Relay Kit for Towed Vehicles on a 2014 Ford F-150
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Video: How to Install the Blue Ox Base Plate Kit on a 2022 Ford F-150
- Q&A: Full Flat Towing Set Up For A 2024 Ford F-150 4x4
- Video: Install: Demco 4-Diode Universal Wiring Kit for Towed Vehicles on a 2017 Jeep Wrangler Unlimited
- Video: How to Install the Demco 4-Diode Universal Wiring Kit for Towed Vehicles on a 2022 Ford Maverick
- Q&A: Does the Curt RVi Series Towed Battery Charger+ Provide Backflow Protection?
- Q&A: How do I Prevent my 2023 Ford F-150 Brake Light From Overriding The Turn Signal
- Q&A: How Does Curt RVi 4 Supplemental Brake For Flat Towing Know When To Apply Toed Brakes?
on Flat Tow Brake System
