Troubleshooting OL Code on Curt Triflex Brake Controller
Question:
Hello I have OL showing on my controller when I apply the break but it is not every single time. When I apply the break and it reaches the Set power 5.0 sometimes I have OL show up and seems like the trailer brake is released.. Is it still safe to drive the trailer??
asked by: Gabor V
Expert Reply:
The OL showing on your # C24VV Curt Triflex Brake Controller indicates that there is an overload error. If this problem is causing your brakes to fail I recommend not towing the trailer until you can fix the problem or find a replacement if necessary.
To test the brake controller I would start by severing the blue output wire near the brake controller. Make sure you leave enough room to reconnect the wire and apply the slide-bar manual override. You will need a circuit tester like the # PTW2993 Hook Probe Circuit Tester. There should be output to the controller side of the severed wire.
Assuming the manual slide works the next step is to try the brake pedal. If the brake pedal activates the brake output properly there is a different problem. If one of these does not work, test the wires going into the controller. There should be power entering the controller on the black wire and the red wire should have power when the brake pedal is pressed. It is also important to make sure that the controller is properly grounded.
If you find that the connections are good it is possible that the problem is with the brake controller.
I have attached a helpful video explaining how to test wiring on a brake controller for your reference.
Products Referenced in This Question
Product Page this Question was Asked From
Curt TriFlex NEXT 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
- CURT
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Brake Controller
- Video: Air Lift WirelessONE Compressor System Remote Control Replacement Review
- Q&A: Troubleshooting Curt Triflex # C24VV Issues After Unit Overheating
- Video: Trailer Brake Controller Installation - 2015 Chevrolet Colorado
- Q&A: Troubleshooting Curt Triflex Brake Controller that Stopped Working with Brakes
- Video: Trailer Brake Controller Wire Testing
- Shop: Replacement Remote Control for Air Lift WirelessONE Compressor System
- Q&A: Troubleshooting Brake Controller with OL Code when Brakes are Applied
- Q&A: Troubleshooting Curt Triflex Brake Controller Showing OL Code on Display
- Shop: Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Q&A: Troubleshooting OL Code On Curt TriFlex Trailer Brake Controller W/ Trailer Unhooked
- Shop: etrailer Hitch and Coupler Lock Set - 2" Hitch - 2-5/16" Ball
- Shop: etrailer Trailer Coupler Lock - Flat Lip 1-7/8" and 2" Ball Couplers - Aluminum - Yellow
- Q&A: No Power On Blue Wire to Trailer Brakes from Brake Controller
- Shop: Universal Wiring Adapter for Hayes Trailer Brake Controllers
- Shop: Hook Probe Circuit Tester
- Shop: Trailer Valet RVR3 Remote-Controlled Trailer Dolly w/ Hitch Ball Mount - Wireless Remote - 3,500 lbs
- Search Results: tekonsha p3
- Q&A: Curt Triflex Brake Controller Troubleshooting Flashing 9.9 All the Time
- Article: Trailer Wiring Diagrams
- Shop: Mud Flaps
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Hitch
- Video: Choosing the Right Brake Controller
- Search Results: brake controller
- Video: Choosing the Right Trailer Wiring
- Search Results: trailer brake controller
- Shop: Trailer Wiring
- Video: Tekonsha Prodigy P3 Trailer Brake Controller Review
- Article: How to Choose the Right Trailer Hitch Class
on Trailer Brake Controller
