7 Pin Trailer Wiring Diagrams. Below are the 7 pin trailer wiring diagrams for each of the three main types of trailers. Even if your wiring color codes do not match up with that of the universal color coding listed earlier, the functions of each of the wires (regardless of color) will still match up with the same pins in the wiring diagram.. Five-way wiring is common in a number of 90's Chevy truck models. Six-Way Wiring. Six-way wiring includes a sixth wire used for a fused battery lead, to provide 12 volts of power to any accessory that may be included on the trailer such as a fan. This sixth wire is usually black or red in color. Green - Right turn signal and right brake.
Q&A: Wiring Diagram Needed for Installing a 7-Way on a 2005 Chevrolet Silverado ; Search Results: wire; Video: Feature Breakdown: Jacketed 2 Wire (Brake Wire) Video: Ultimate Overview of the Hopkins 7-Way RV Style Connector with Molded Cable; Video: Checking Out the Demco Hydraulic Brake Actuator w/ Electric Lockout; Search Results: 15 inch 6.. The GM 7 way trailer plug wiring diagram illustrates the specific wiring configuration for the seven-pin connector on your vehicle. Each pin corresponds to a different function, such as ground, running lights, left turn signal, right turn signal, brake lights, electric brakes, and backup lights. By following the diagram, you can easily identify.