How To Troubleshoot Weak Braking Power With Electric Trailer Brakes On A New Trailer
Question:
truck has factory integrated brake controller. when i use the manual override I have very little force at the trailer brakes . I have adjusted the brakes like you have shown in the videos. trailer has very little use since new in 2014. I saw a video that said in would not have full power without a load, but as I have learned manual override puts full 12 V to brakes. Am I not right?
asked by: Kevin K
Expert Reply:
You are correct in that a manual override switch will apply the maximum braking power of the trailer brakes, if functioning properly.
There are two things you may want to check. The first thing I would do is check to see the trailer brakes are properly grounded. There are two wires coming from the back of an electric brake assembly. One will run into the trailer's wiring harness and the other will be grounded to the frame. As these are nonpolar, it doesn't matter which wire has which function just so long as they are both connected.
The next thing you will want to check is the brake shoes. In some cases, the grease seal will become faulty and cause grease to seep out onto your brake pads causing inefficient braking.
I have attached a help article that will demonstrate how to check if the brake magnets are functioning properly.

Product Page this Question was Asked From
Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 10" - Left Hand - 3,500 lbs
- Accessories and Parts
- Trailer Brakes
- Electric Drum Brakes
- LH
- 3500 lbs
- Brake Assembly
- Self Adjust
- 10 x 2-1/4 Inch Drum
- Dexter
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Article: Testing Trailer Brake Magnets for Proper Function
- Article: Testing Brake Controls
- Shop: Brake Controller
- Q&A: Trailer Brakes are Very Weak Even After Adjusting Them
- Search Results: trailer brake controller
- Search Results: tekonsha prodigy p3
- Shop: Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Shop: Tekonsha Prodigy P2 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Q&A: Should Electric Trailer Brakes Have Continuity Between The Two Wires?
- Q&A: How to Test Brake Magnet Amperage on a Trailer with 4 Brakes
- Q&A: Troubleshooting Bad Ground on Trailer Brake Circuit
- Search Results: multimeter
- Shop: 3-Piece Electrician Tool Set
- Shop: etrailer Electric Trailer Brakes - Self-Adjusting - 10" - Left/Right Hand Assemblies - 3.5K
- Search Results: side markers
- Search Results: clearance lights
- Search Results: trailer wire tester
- Search Results: trailer plug tester
- Video: How to Choose a Trailer Brake Controller
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Hitch
- Q&A: What is the Difference Between the Tekonsha Prodigy P2 and the P3 Brake Controllers
- Article: Trailer Wiring Diagrams
- Video: Redarc Tow-Pro Liberty Brake Controller Review RED24FR
- Shop: Trailer Wiring
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Article: Brake Controller Installation: Starting from Scratch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Curt Echo Wireless Brake Controller - 7-Way Plug-in w/ Bluetooth App - Up to 2 Axles - Proportional
- Shop: Redarc Tow-Pro Liberty Brake Controller - Dash Knob - Up to 2 Axles - Proportional