Trailer Connector: Description and Operation

Trailer Wiring Harness
Your vehicle is equipped with one of the following wiring harnesses for towing a trailer or hauling a slide-in camper.

Basic Trailer Wiring
All regular, extended cab crew cab pickups have a six-wire trailer towing harness.






The six-wire harness is located at the rear of the vehicle and is tied to the vehicle's frame. The harness requires the installation of a trailer-wiring harness connector, which is available through your dealer.

The six-wire harness contains the following trailer circuits:

- Yellow: Left Stop/Turn Signal
- Dark Green: Right Stop/Turn Signal
- Brown: Taillamps
- White: Ground
- Light Green: Back-up Lamps
- Light Blue: Center High-Mounted Stoplamp (CHMSL)

If you need to upgrade your trailer wiring harness, an additional 2-wire harness and 7 pin universal trailer connector are available from your dealer.


Heavy-Duty Trailer Wiring Harness Package





Your pickup may be equipped with the eight-wire trailer towing harness. This harness with a seven-pin universal trailer connector is attached to a bracket on the hitch platform.*

* The Center High-Mounted Stoplamp (CHMSL) wire is tied next to the trailer wiring harness for use with a trailer, slide-in camper or cap.


The eight-wire harness contains the following trailer circuits:
- Yellow: Left Stop/Turn Signal
- Dark Green: Right Stop/Turn Signal
- Brown: Taillamps
- White: Ground
- Light Green: Back-up Lamps
- Light Blue: CHMSL
- Red: Battery Feed
- Dark Blue: Trailer Brake

If your trailer is equipped with electric brakes, you can get a jumper harness (electric trailer brake control) with a trailer battery feed fuse from your dealer.

If you need to tow a light-duty trailer with a standard four-way round pin connector you can also get an adapter from your dealer.


Camper/Fifth-Wheel Trailer Wiring Package




The eight-wire camper harness is located under the front edge of the pickup box on the driver's side of the vehicle, attached to the frame bracket. A connector will have to be added to the wiring harness which connects to the camper.

The eight-wire harness contains the following camper/trailer circuits:

- Yellow: Left Stop/Turn Signal
- Dark Green: Right Stop/Turn Signal
- Brown: Taillamps
- White: Ground
- Light Green: Back-up Lamps
- Light Blue: Center High-Mounted Stoplamp (CHMSL)
- Red: Battery Feed
- Dark Blue: Trailer Brake






If your vehicle is equipped with the "Heavy-Duty Trailering" option, please refer to Heavy-Duty Trailer Wiring Package , earlier in this section.

When the camper-wiring harness is ordered without the heavy-duty trailering package, an eight-wire harness with a seven-pin connector and separate CHMSL connector are located at the rear of the vehicle and are tied to the vehicle's frame.