Troubleshooting An OL Error On A Tekonsha BRAKE-EVN Trailer Brake Controller # TK63VR
Updated 06/13/2024 | Published 06/05/2024
Question:
Installed a Tekonsha 8507120 timed brake controller on 2004 Ford Excursion. Everything seems to work, but when I start truck with out a trailer hooked up controller flashes OL. Ran new blue wire to be sure no bad spots and still have OL when truck is running without any trailer. Any suggestions, Tekonsha wont respond.
asked by: Randy
Expert Reply:
Hey Randy,
If you're getting an 'OL' (overload) error on your Tekonsha BRAKE-EVN Trailer Brake Controller # TK63VR when the trailer isn't connected then you likely have a bad ground on the Excursion. When connected to the trailer you're probably getting ground from it and that's clearing the OL issue. I would check the wire harness ground to make sure you're getting a good connection to the frame.
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Trailer Wiring
- Shop: Brake Controller
- Q&A: Replacement 7-Way Trailer Connector-2007 Toyota Tundra
- Q&A: NC Code on Tekonsha Prodigy Brake Controller After Installing 2nd 7-Way Trailer Connector
- Q&A: Owner's Manual for Tekonsha BRAKE-EVN Trailer Brake Controller
- Q&A: Location Of Factory Brake Controller Port On 2007 Toyota Tundra SR5 w/ Tow Package
- Search Results: trailer hitch
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Shop: Trailer Hitch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Trailer Wiring Diagrams
- Video: Firestone Ride-Rite Air Bags with Easy Mount Compressor Feature Breakdown
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness - Dash Knob - Proportional
- Search Results: trailer wiring
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Search Results: trailer tires and wheels
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: Suspension Enhancement
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Search Results: brake controller
- Article: How to Measure for Trailer Hitch Drop
- Video: Redarc Tow-Pro Liberty Brake Controller Review RED24FR
- Video: Redarc Tow-Pro Trailer Brake Controller Plug-and-Play Wiring Harness Review
- Shop: Gooseneck Hitch
- Search Results: trailer lights
- Article: Brake Controller Installation: Starting from Scratch
- Shop: etrailer Anti-Rattle Hitch Collar for 2" Hitch Receivers
- Article: How to Measure Your Trailer Wheel Bolt Pattern
on Trailer Brake Controller
