2002 Silverado Trailer Plug Wiring Diagram. Brown pin for unwanted markers tail lamps and running lights. It includes directions and diagrams for various kinds of wiring strategies as well as other items like lights windows etc.
Typically the tow package wiring is located along the frame rail or above the spare tire. Blue pin for electric brakes. It is the 4 pin connector.
All of these parts can also be purchased online.
Heres the diagram for 7 pin connector. Many trailer wiring connectors. How to chevy silverado stereo wiring diagram. Heres the diagram for 7 pin connector.