2002 GMC Yukon Owner's Manual - Page 282

2002 GMC Yukon Manual

Page 282 highlights

The seven-wire harness contains the following trailer circuits: Instrument Panel Jumper Wiring Harness D D D D D D D Yellow: Left Stop/Turn Signal Dark Green: Right Stop/Turn Signal Brown: Taillamps White: Ground Light Green: Back-up Lamps Red: Battery Feed Dark Blue: Trailer Brake A jumper harness for an electric trailer brake controller and a trailer battery feed fuse are included with this trailering package. (See "Instrument Panel Jumper Wiring Harness" later in this section.) If you need to tow a light-duty trailer with a standard four-way round pin connector, an adapter connector is included with your vehicle. This harness is included with the heavy-duty trailer wiring package. The harness is for an electric trailer brake controller and includes a trailer battery feed fuse. This harness and fuse should be installed by your dealer or a qualified service center. 4-71

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