Replacing the Factory Brake Controller in 2009 Silverado 2500HD with Aftermarket Controller
Question:
I am going to replace my oem controller with a P3, but am a bit confused about the instructions you have at: https://www.etrailer.com/faq-tb-2007-2009-GM-Full-Size-Truck-w-Factory-Installed-Brake-Controller.aspx It says I must connect two wires under the hood, one to power the P3, the other to charge the trailer batteries. I understand the power wire for the P3, but not the other one. Since I already had a working/charging factory 7-pin before the oem unit failed, would I still have to connect a new wire to charge the trailer batteries?
asked by: Steve M
Expert Reply:
The short answer to your question is, yes, you still need to connect the power wire under the hood and run a wire into your factory 7 way trailer connector when installing your Tekonsha P3 # 90195 .
From our experience, for whatever reason, GM started disconnecting the circuit (circuit #742) that ran auxiliary power to the 7 way trailer connector at the factory when they began installing the integrated brake controllers. The integrated system was able to provide power to that wire at the 7 way, but adding an aftermarket system changes that configuration, so the connection needs to be made. This information came out with the GM technical bulletin #07-08-45-001F
Products Referenced in This Question
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 >
Product Page this Question was Asked From
Tekonsha Prodigy P2 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
- LED Display
- Up to 360 Degrees
- Tekonsha
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Brake Controller
- Shop: VueSMART RV and Trailer Backup Camera - Wireless - Universal Mount - 152-Degree View
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Trailer Wiring
- Shop: Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Shop: Dual Battery Isolator Switch
- Shop: Trailer Hitch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Video: Choosing the Right Trailer Wiring
- Search Results: trailer brake controller
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Trailer Wiring Diagrams
- Video: Choosing the Right Brake Controller
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Search Results: brake controller
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Article: How to Choose the Right Trailer Hitch Class
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Video: Redarc Tow-Pro Liberty Brake Controller Review RED24FR
- Search Results: 90160
- Search Results: 25580
- Shop: Redarc Tow-Pro Liberty Brake Controller - Dash Knob - 1 to 2 Axles - Proportional
- Shop: Gooseneck Hitch
- Q&A: What Is An OEM Prep Package And How Do I Know If I Have It
- Article: How to Measure for Trailer Hitch Drop
- Shop: 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End
- Q&A: Does Truck with 6-1/2 ft bed Have to Use Slider Hitch for Turning Clearance with Fifth Wheel Hitch
- Search Results: hitch
- Shop: Suspension Enhancement
- Video: Tekonsha Prodigy P3 Trailer Brake Controller Review