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Location of Cold Side of Stop Light Switch for Brake Controller Installation on 2022 Ford F-150  

Updated 02/03/2026 | Published 06/27/2024

Question:

I bought the redraw brake controller for my 2022 f150 can you tell me which wire on truck to connect the brake trigger wire to

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Expert Reply:

It looks like the OEM brake light switch is unusable on the 2022 Ford F-150. To complete the installation you will need to add the RoadMaster Stop Light Switch Kit # RM89ZR if you do NOT have an adjustable brake pedal or # RM42MR if you DO have an adjustable brake pedal. The red wire on your # RED52VR will connect to this to complete the installation.

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Robin H
Robin H. profile picture
Etrailer Expert

Robin H.

2/3/2026

Hey, how did things go wiring the Redarc brake controller on your F-150 with the stop light switch kit? Knowing which setup worked best could help others working on the same truck.

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