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Does Power Wire of Tekonsha Trailer Wiring 118498 Have to be Connected to Function

Question:

If i do not run the cable to the battery will it not work at all? no signal is sent via the 4 pin conector without power from battery?

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Expert Reply:

Not all vehicles can handle the additional amperage draw of the trailer taillights on the vehicle taillight circuits. Those vehicles need setup that draws power from the battery. Some vehicles have higher rated circuits that can handle this, and others need to have the power drawn straight from the battery to protect the taillight circuits.

If you do not connect the power wire to the vehicle battery the trailer wiring harness # 118498 would not function at all.

expert reply by:
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Jameson C

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