7 Way Trailer Plug Installation

7 Way Trailer Plug Installation. This is because the trailer harness will not reach the factory plug located on the rear of the truck, and this harness is what controls the brake lights, running lights, and turn signals. A colour coded trailer plug wiring guide to help you require your plugs and sockets.

7 WAY ROUND TRAILER CONNECTOR FEMALE RV LIGHT PLUG ... (Cornelia Hernandez)

I hate to put the other plugs on the trailer due to I have another truck that it works fine with without an. It features quality plastic construction and requires no splicing. Has anyone else had a similar experience using an adapter?

If you are wiring a harness on a vehicle that has an existing warranty, professional installation of the plug is recommended.

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Protects plug-end from corrosion and debris. Plug bad and electric brakes wires not connected on plug. Make sure there is no build up in the plug, then check all trailer related fuses and relays if you havn't already.