Troubleshooting Brake Controller that Only Shows Connection When Test Light is Connected
Updated 01/16/2016 | Published 01/15/2016 >
Question:
Hi I have a tekonsha voyger controller on my 4x4.I have power to the unit and when I apply the break pedal too so this is all good. The earth is all good as well . The led light will only come on when I put my test light from the neg Batt terminal to the blue wire ????? The override slider control makes the normal clicking noise when pressed. Not sure what my problem is ?? Can you help Thanks
asked by: Scott
Expert Reply:
Try hooking up a trailer to your 7-way. I would be surprised if the controller didn't work. You see, the controller has to detect a load on the output circuit (the brake magnets), in order for the controller to sense a trailer and start activating the brakes. Since your controller shows a connection when a test light is applied that shows that it's working.
Product Page this Question was Asked From
Featured Help Information
Miscellaneous Media
Continue Researching
- Q&A: Trailer Running Lights Do Not Work but Brake Lights and Turn Signals Do Work
- Q&A: How to Test Brake Controller without Trailer Connected
- Article: Trailer Wiring Diagrams
- Article: Brake Controller Installation: Starting from Scratch
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Troubleshooting Right Side Trailer Lights Not Working, Left Side Working Correctly
- Q&A: Trailer Lights Left Side Turn Signal and Brake Lights Not Working
- Q&A: Troubleshooting Blown Vehicle Fuses Every Time Trailer is Connected
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Article: Holiday 2025 | RVers’ Favorite Gear & Road Picks
- Q&A: Working Running Lights, But No Turn Signals or Brake Lights On Trailer
- Q&A: How to Hook Light Bar Up to Work with High Beams on Vehicle
- Article: Testing Trailer Brake Magnets for Proper Function


