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How Does Running Light Signal Get to Both Sides of Trailer if there is Just 1 Running Light Circuit  

Question:

Whén 1 pin is tail lights how does power get 2 Nothomb lights

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Expert Reply:

Trailers have combined wiring which means the brake lights and turn signals share a circuit on each side and there is only one tail light circuit. The tail light circuit is then split to go to both sides of the trailer. I have included a link to our trailer wiring FAQ article that covers the various types of trailer and vehicle side connectors for you.

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Michael H

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