How Many Volts Should a Brake Controller Put Out on the Highest Gain
Updated 10/01/2018 | Published 09/29/2018
Question:
with trailer unhooked and manual gain shoved to highest gain #10 what voltage should be coming out of the back of controler on the blue wire? Im only getting about 2.5 volts.
asked by: Lloyd
Expert Reply:
What type of brake controller do you have? Is it a proportional or time delayed? Also, are you using the brake pedal or the manual override? If you have a proportional brake controller and you are using the manual override then you should see a full 12 volts or very close. If you have a proportional brake controller but are using the brake pedal then this is normal as the vehicle is not in motion and that's how the controller adjusts braking power.
If the controller is bad then for replacement, I recommend the Tekonsha Prodigy P2 Trailer Brake Controller part # 90885. This is our best selling brake controller hands down and has a ton of great features like continuous diagnostic checks and integrated safeguards. It also has a lifetime warranty so it will be the last one you need to buy.
I have attached a review video for you as well.
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Roof Rack
- Search Results: lunette
- Search Results: battery charger
- Search Results: ladder rack
- Shop: Brake Controller
- Search Results: 10k oil cap
- Search Results: roof rack
- Q&A: Voltage at Brake Magnets is 8 Volts with Brake Controller Set to Maximum
- Shop: Trailer Wiring
- Shop: 30 ft. Wishbone 4-Way Trailer Wiring Harness with 30" Ground Wire
- Shop: Dexter Fortress Threaded Aluminum Oil Bath or Grease Cap for Dexter 9K to 10K General Duty Axles
- Shop: Dexter Fortress Threaded Aluminum Oil Bath or Grease Cap for Dexter 10K HD to 15K Axles
- Shop: Buyers Products Plain 10-Ton Forged Steel Lunette Ring w/ 3" I.D.
- Search Results: accessories and parts
- Shop: Rhino-Rack Heavy Duty Roof Rack for Naked Roofs - Aluminum - Black - Qty 2
- Shop: etrailer Electric Trailer Brakes - Self-Adjusting - 12" - Left/Right Hand - 5.2K to 7K
- Shop: Rhino-Rack Quick Mount Legs for Sportz Crossbars - RTC and RT Roof Rack Tracks - Qty 4
- Q&A: Can The MORryde Storage Bracket For WDH Stay On The Trailer's A-Frame While Driving?
- Q&A: How Much Voltage Should Be Applied To Brakes on Trailer w/ Electric Brake Controller
- Video: Installation Guide for the Yakima BaseLine FX Roof Rack - 2025 Ram 1500
- Video: Mount: Rhino-Rack Vortex Roof Rack on a 2019 Ram 1500
- Q&A: Will ECM on 2025 Ram 1500 Require Programming After Brake Controller Installation
- Q&A: Testing for Proper Voltage on the Brake Output Circuit
- Video: Weight Distribution Storage Solved: MORryde Tells Us How
- Video: Review of MORryde Weight Distribution Hitch Storage - MR62ZV
- Video: Rhino-Rack Camper Shell Heavy-Duty Bar Roof Rack Review
- Shop: Trailer Hitch
- Search Results: square nut
- Video: Review of Rhino Rack Roof Rack Leg Spacer Blocks Heavy Duty Crossbar - RRQMHD05
- Q&A: Advantages Of Tekonsha P3 Trailer Brake Controller Over Integrated Controller On 2017 Ford F-150
on Trailer Brake Controller
