2001 Gmc Trailer Wiring Diagram. First replace the trailer light brake/turn signal fuses. This harness with a seven - heavy duty trailer connector is attached to a bracket on the platform hitch.
This harness with a seven - heavy duty trailer connector is attached to a bracket on the platform hitch. It has trailer ready wiring, i.e. it has some wires run to the rear of the pickup for lighting. Download PDF manuals for GMC car's.
Refer to manufacturer installation instructions and specs for complete information.
It also has the trailer brake moduel under the dash on the left side.
Trailer Wiring Harness Your vehicle is equipped with one of the following wiring harnesses for towing a trailer or hauling a slide-in camper. It has trailer ready wiring, i.e. it has some wires run to the rear of the pickup for lighting. I need to know which pins on the switch (door locks and windows) need positive and which ones need ground.