Installing Aftermarket Brake Controller on a 2012 GMC Sierra 3500 with ITBC
Question:
I have 2012 gmc 3500 how do I bypass itcb
asked by: Kevin
Expert Reply:
To bypass the factory integrated brake controller (ITBC) on your 2012 GMC Sierra 3500 you will need to access the blunt cut wires under your driver's side dash. Once you have these you can connect your aftermarket brake controller. I recommend going with something like the popular Prodigy P3 # 90195 because of how reliable and easy to use it is. You will connect the following wires from the P3 to the following on your GMC:
Black - Red/Black
White - White
Red - Light Blue/White
You will disregard the dark blue and orange wires. The blue wire from the pigtail for the P3 needs to be connected to the blue wire at the back of the 7-Way trailer connector on your pickup via 12 Gauge Wire # 12-1-1. You also need to make some connections under your hood. I have attached a helpful article that walks you through the exact steps you need to take to perform this installation.

Products Referenced in This Question
Product Page this Question was Asked From
Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- LCD Display
- Up to 360 Degrees
- Tekonsha
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: etrailer Electric Trailer Brakes w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right - 10K
- Shop: Dexter Trailer Axle w/ Electric Brakes - E-Z Lube - 8 on 6-1/2 Bolt Pattern - 95" - 7,000 lbs
- Shop: Trimax Universal Trailer Coupler Lock for 1-7/8", 2", and 2-5/16" Couplers
- Shop: Provider ST205/75R15 Radial Trailer Tire - Load Range D
- Search Results: 9~123~1
- Search Results: lp51cb
- Shop: Dexter Trailer Brake Drum for 9,000-lb to 10,000-lb Axles - 12-1/4" - 8 on 6-1/2 - Non-ABS
- Search Results: kodiak 225
- Search Results: 7k axle
- Search Results: trailer fender
- Search Results: kodiac
- Search Results: 76603
- Shop: Aluminum Sendel Series T07 Black Machined Trailer Wheel - 14" x 5-1/2" Rim - 5 on 4-1/2
- Shop: Kodiak 12" Rotor - 6 on 5-1/2 - Dacromet - 5,200 lbs to 6,000 lbs
- Shop: RV Bearing
- Shop: Fifth Wheel Hitch
- Q&A: Troubleshooting Intermittent Trailer Disconnected Message with Factory Brake Controller on Ford
- Q&A: Replacing Trailer Buddy 32220 Reverse Solenoid on Ranger Boat Trailer
- Video: etrailer VS Dexter Self Adjusting Brakes Comparison
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Shop: Trailer Hitch
- Article: Trailer Wiring Diagrams
- Shop: Trailer Wiring
- Q&A: What is the Best Grease for Trailer Bearings
- Article: How to Measure Your Trailer Wheel Bolt Pattern
- Article: 4 Steps to Choosing Your 5th Wheel Pin Box
- Q&A: What Is An OEM Prep Package And How Do I Know If I Have It
- Video: Finding the Right Trailer Wiring Harness
- Q&A: How to Determine Replacement Trailer Wheel Bearing Sizes
- Shop: Gooseneck Hitch