How To Install Brake Lite Relay In A 2012 Ford F-150 Platinum EcoBoost
Updated 02/04/2026 | Published 07/01/2024
Question:
I have a 2012 ford f-150 4wd platinum ecoboost.It has neutral tow instructions for disengaging transfer case not a neutral tow “kit”.Should I follow A or B instructions for the 88400 brake lite relay
asked by: Robert R
0
Expert Reply:
Hello Robert. If your 2012 Ford F-150 Platinum does not have a neutral tow kit or a push button start, you will use the "normally open" installation method so shown in the diagram below.
expert reply by:
Jesse M
0
Normally Open Installation Diagram
(click to enlarge)
(click to enlarge)
Product Page this Question was Asked From
Roadmaster Brake-Lite Relay Kit for Towed Vehicles
- Flat Tow Brake System
- Brake Light Relay
- Roadmaster
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Jesse M.
2/3/2026
Hey Robert, how did things go using the normally open method with your F-150 and the Brake-Lite Relay Kit? Your update could make it easier for the next person setting up a similar flat tow setup.