How Does Trailer Wiring Install on a Vehicle Where Brake and Taillight are on the Same Wire
Updated 11/24/2015 | Published 11/23/2015
Question:
With the Golf GTI, the Brake light and tail light are the same globe but different voltage are applied. How do you stop the tail lights getting full voltage when you brake.
asked by: Michael
Helpful Expert Reply:
You have what is called multiplexed wiring for the wiring of the taillights of your 2012 Volkwagen GTI. The trailer wiring kit part # 119250KIT is designed to work with this setup so what you will need to do is run the yellow wire of the harness to the left turn wire, the green wire to the right turn wire and then run the red wire to the brake/taillight circuit of the vehicle. You will note that the brown wire is not used.
The converter box of the # 119250KIT will be able to interpret the signal appropriately and apply the correct taillight functions of the trailer.
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