Where is the Brake Controller Port Located on a 2005 GMC Yukon Denali
Updated 06/10/2024 | Published 03/15/2010 >
Products Featured in This Question
Question:
i have a 2005 gmc denali and looking for the port under the dash to hook up a brake control where would it be located or color coded?
asked by: rick
Expert Reply:
The brake controller port on your 2005 GMC Yukon Denali will be located in the black junction box, which is under the dashboard and to the left of your steering column, right above the carpet.
The plug in point will be the second port from the left, on the top row.
I have included a link to instructions for a brake control wiring adapter # 3015-P that plugs in at this same point, if needed.
If you do not already have a brake controller, I would recommend the Prodigy P2 # 90885, which would offer a simple, plug-in application when combined with the # 3015-P adapter.
You would also need wiring harness # 30955 if your vehicle is not equipped with a 7-way connector. I'll link you to an FAQ article that explains how to complete the installation.

Product Page this Question was Asked From
Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - GM
- Accessories and Parts
- Trailer Brake Controller
- Wiring Adapter
- Plugs into Brake Controller
- Vehicle Specific
- Tekonsha
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Brake Controller
- Search Results: l44649
- Search Results: 301500
- Search Results: dexter seal 010 019 00
- Search Results: tekonsha 90195
- Search Results: tekonsha p3
- Shop: Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - GM
- Search Results: tekonsha p2
- Search Results: k23~086~087~00
- Shop: Hub Bearing Kit for Lippert, Dexter, and AL-KO Axles - 3,500 lb with #84 Spindle
- Video: Redarc Tow-Pro Liberty Brake Controller Installation - 2017 Cadillac Escalade
- Article: Installing an Electric Brake Controller on 2007-2013 GM Full-Size Truck or 2007-Present GM SUV
- Shop: Peterson LED Side Marker and Clearance Light w/ Grommet - Bullet Connectors - Round - Red
- Shop: Grease Seal - Double Lip - ID 1.719" / OD 2.565" - for 3,500-lb Axles - Qty 2
- Shop: Complete Bearing Kit with L44649 Inner/Outer Bearings and 10-9 Grease Seal Fits 1.063" Spindles
- Q&A: Fuse Location for Trailer Brake Controller on a 2005 Chevy Silverado 1500
- Q&A: Is Brake Controller Needed to Stop Trailer with Electric Brakes
- Q&A: Recommendation For Extra Hub/Drum For Dexter 8-249 Hubs
- Q&A: Wiring Up Reverse Lights on Trailer to Use as Both Reverse Lights and Utility Lights
- Q&A: How to Wire Reverse Lights on a Trailer with a 4-Way Trailer Connector
- Q&A: Lug Nuts For Hub on Dexter 3,500 lb Axle
- Shop: Curt TriFlex NEXT Trailer Brake Controller w/ Custom Harness - 1 to 4 Axles - Proportional
- Shop: Timken Replacement Bearing and Race Set - L44649 and L44610
- Q&A: How Does the Drive RV Bluetooth Speaker Connect to a Mobile Device?
- Article: Which Sway Control Hitch is Right For Your Trailer?
- Article: How to Install a Brake Controller on Chevrolet / GMC 1999-2006 Pickups
- Shop: Suspension Enhancement
John
6/10/2024
The port on my truck(2005 gmc 1500) Already has a factory red and yellow wire in that port making it unusable for my new brake controller harness. What should I do?