Commercial Trailer Light Plug Wiring Diagram. Find the trailer light wiring diagram below that corresponds to your existing configuration. By law, trailer lights must be connected into the tow vehicle's wiring system to provide trailer running.
How to Wire Lights on a Trailer If you're towing just for the day and don't ever plan to tow again, you can pick up some adapters that replace the taillight bulbs in your vehicle and have pigtailed wires hanging from them. These either come standard with the equipment or can be found online.
The Plug is constructed from durable materials to protect the wiring.
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This is for the trailer only. Wiring an aftermarket plug as opposed to an original equipment manufacturer plug may void the existing Also, determine which wire powers the reverse light. But all the diagrams we found gave us a lot of partial information or only halfway applied to our system, and led to some confusion on our part.