Brake Controller for Motorhome to use With Car Hauler Trailer
Question:
Hello I have been towing a Honda CRV with your equipment for the last three years and have decided to make the move to a car hauler trailer honest it is not all my gear that requires a trailer. I currently have a seven pin plug with standard wiring less trailer brakes as I had a Patriot unit for the Honda. Could you point me to a recommended controller and wiring kit to install in a diesel pusher? The one concern I have is that the exhaust brake activates the brake light so which wire do I use for the trigger wire on the controller so that the trailer brakes do not activate every time the brake lights come on? Any help would be greatly appreciated. Thanks
asked by: Brian S
Helpful Expert Reply:
The best brake controller for your situation is the Prodigy P3 # 90195; it is the most popular model we carry due to its effectiveness and ease of use. It will activate your trailer's brakes immediately in proportion to your motorhome's brakes and offers three different boost levels so you can adjust your braking power.
When wiring the P3 on your motorhome with an exhaust brake that does activate the brake light you do need to test to find out if there is power on the brake switch wire that the brake controller taps into when the exhaust brake is activated. If there is power, use Diode # RM-690 and install it between the brake controller and where it taps into the brake switch to avoid backfeeding power to the controller.
With a 7-way you will need to use 10 gauge wire # 10-2-1 and 30-amp circuit breaker # PK54530; you will need to wire your hot lead through your circuit breaker.
I have added a number of help articles on wiring brake controllers for you to check out which should be helpful as well.
Products Referenced in This Question
Deka Jacketed 2 Wire, 10 Gauge, Brake Wire - per Foot
- Wiring
- Wire
- Jacketed Wire
- 2 Wire
- 10 Gauge
- Deka
more information >
Pollak Circuit Breaker - Cycling/Automatic Reset - 30 Amp - Straight Mount Bracket
- Accessories and Parts
- Wiring
- Circuit Breaker
- 30 Amp
- Pollak
more information >
Roadmaster Single Park Light Diode
- Accessories and Parts
- Tow Bar Wiring
- Diodes
- Roadmaster
more information >
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: Hydrastar Electric Over Hydraulic Actuator Adapter Module for Ford and Chevy Brake Controllers
- Shop: Roadmaster Hy-Power Diode - (Qty 1)
- Shop: Roadmaster Single Park Light Diode
- Shop: Roadmaster Battery Charge Line Kit for Towed Vehicles
- Shop: Seaflo Battery Disconnect Switch for Boats and RVs - On/Off - 900 Amps
- Video: Hydrastar Brake Actuator HBA-CAM Review
- Video: Review of Roadmaster Tow Bar Wiring - Single Park Light Diode - RM-690
- Video: Roadmaster Hy-Power Diode Review
- Video: Review of Roadmaster Tow Bar Wiring Diode - RM-790
- Video: HydraStar Electric Over Hydraulic Disc Brake Actuator Installation - 2017 Grand Design Solitude Fift
- Q&A: Adding Third Brake Light to 1982 Burro Trailer
- Q&A: Can Roadmaster Diode # RM-790 be Used to Prevent Backfeeding to Vehicle
- Q&A: How to Wire the Roadmaster Single Park Light Diode # RM-690
- Q&A: Can Breakaway Battery be Used to Power Dome Lights?
- Q&A: Is Diode Needed to Prevent Trailer Battery from Backfeeding to Breakaway System
- Q&A: Diode Recommendation for Taking Two Power Sources from Solar Panels
- Q&A: Diode Recommendation to Prevent Trailer Battery From Backfeeding onto Vehicle Wiring
- Shop: B&W Companion OEM 5th Wheel Hitch w/ Slider for Chevy/GMC Towing Prep Package - Dual Jaw - 20K
- Search Results: b&w
- Video: B and W Companion OEM 5th Wheel Hitch with Slider Installation - 2022 GMC Sierra 2500
- Shop: Fifth Wheel Hitch
- Article: Trailer Wiring Diagrams
- Article: Gooseneck to 5th Wheel Adapters
- Shop: Suspension Enhancement
- Video: Choosing the Best Fifth Wheel Hitch
- Shop: B&W Companion OEM 5th Wheel Hitch for Chevy/GMC Towing Prep Package - Dual Jaw - 20,000 lbs
- Search Results: gooseneck hitch
- Search Results: 5th wheel hitch
- Article: Best Air Bag Suspension (2023)
- Shop: Gooseneck Hitch
on Trailer Brake Controller
