1999 Chevrolet Tahoe Owner's Manual - Page 240

yellowblue This harness has a 30 amp battery feed wire and no connector, and should be wired by a qualified electrical technician. After choosing an aftermarket mating connector pair, have the technician attach one connector to the eight-wire trailer harness and the other connector to the wiring harness on the trailer. Be sure that the wiring harness on the trailer is strapped to the trailer's frame and leave it loose enough so that the wiring doesn't bend or break, but not so loose that it drags on the ground. The technician can use the following color code chart when connecting the wiring harness to your trailer. Power Winches If you wish to use a power winch on your vehicle, only use it when your vehicle is stationary or anchored. NOTICE: Using a power winch with the transmission in gear may damage the transmission. When operating a power winch, always leave the transmission in NEUTRAL (N). Use the regular brakes, set the parking brake, or block the wheels to keep your vehicle from rolling. D D D D D D Brown: Rear Lamps Yellow: Left Stoplamp and Turn Signal Dark Green: Right Stoplamp and Turn Signal White (Heavy Gauge): Ground Light Green: Back-up Lamps White (Light Gauge): Center High-Mounted Stop Lamp D Blue: Auxiliary/Electric Trailer Brake Circuit D Orange: Fused Auxiliary Circuit Store the harness in its original place. Wrap the harness together and tie it neatly so it won't be damaged. 4-58