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GMC 2001 Yukon XL - Trailer Wiring Harness

GMC 2001 Yukon XL
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4-62
Trailer Wiring Harness
Your vehicle is equipped with the following wiring
harnesses for towing a trailer.
Basic Trailer Wiring Package
The trailer wiring harness, with a seven-pin connector,
is located at the rear of the vehicle and is tied to the
vehicle’s frame. The harness connector can be plugged
into a seven
-pin universal heavy-duty trailer connector
available through your dealer.
The seven
-wire harness contains the following
trailer circuits:
D
Yellow: Left Stop/Turn Signal
D
Dark Green: Right Stop/Turn Signal
D
Brown: Taillamps
D
White: Ground
D
Light Green: Back
-up Lamps
D
Red: Battery Feed
D
Dark Blue: Trailer Brake
If you need to upgrade your vehicle to heavy
-duty
trailering, a brake controller harness is available from
your dealer.

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