2001 Gmc 2500 Trailer Wiring Diagram. 2005 gmc sierra 2500 trailer light wiring diagram. Purple for copy lights.
Brown pin for unwanted markers tail lamps and running lights. White wires for any electricity that occurs on the lighting. Red 12 volt auxiliary power.
Yellow pin for abandoned brake light and left handed markers.
Yellow pin for abandoned brake light and left handed markers. Brown pin for side markers tail lamps and running lights. Brown cables for any running lights back lights and peripheral markers. Yellow pin for abandoned brake light and left handed markers.