Why Is My Brake Controller Displaying Trailer Not Connected When A Trailer Is Connected?
Question:
Why does controller say no trailer when trailer is connected
asked by: Dwayne S
Expert Reply:
There could be a couple of reasons why your brake controller is displaying that the trailer is disconnected when the trailer is connected.
What I would first check is the vehicle and trailer side connectors for any dirt or corrosion as this is a fairly common reason why things malfunction.
If you see any dirt or corrosion, clean out the connectors, and recheck your brake controller for proper functionality.
If your connectors are clean, or you just cleaned them and rechecked, and are still experiencing the same issue, then I recommend checking your wiring with a circuit tester # PTW2993.
With the trailer disconnected, use the circuit tester # PTW2993, check the black power wire, the white ground wire, and the blue brake wire coming off of the back of the brake controller.
I have also attached a FAQ that goes into a bit more detail on what else you can test/check for on your brake controller.
If you're still unable to resolve the issue, let me know and I'd be happy to help troubleshoot further.
Product Page this Question was Asked From
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Hook Probe Circuit Tester
- Video: Trailer Brake Controller Wire Testing
- Article: Trailer Wiring Diagrams
- Q&A: How do I Tell if the Brake Controller is Bad
- Shop: Replacement Brake Control Plug-In Harness for Tekonsha and Draw-Tite Brake Controller 12" Long
- Shop: Brake Controller
- Article: Troubleshooting Brake Controller Installations
- Shop: Pollak 7-Way to RV Socket LED Circuit Tester - Vehicle End
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Article: Testing Brake Controls
- Article: Brake Controller Installation: Starting from Scratch
- Q&A: Troubleshooting Brake Controller When Manual Override Does Not Work
- Q&A: Testing a Vehicle Side 7-Way Trailer Connector for Proper Function
- Q&A: Where Does Red Wire on Trailer Brake Controller Connect
- Q&A: Where is Cold Side of Brake Switch Normally Found
- Video: Pollak 7-Way to RV Socket LED Circuit Tester Review
- Q&A: Accessing the Cold Side of the Brake Stop Light Switch on a 2007 Jeep Wrangler
- Q&A: Trailer Brake Controller on 2002 Chevy Silverado Does Not Work with Brake Pedal but Does with Manual
- Shop: Fifth Wheel Hitch
- Search Results: quickee 3808
- Shop: Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - GM
- Search Results: electric brake controller
- Article: How Much Solar Power Do I Need For My RV?
- Video: Tekonsha Prodigy P3 Trailer Brake Controller Review
- Search Results: dexter torsion axle lift kit
- Video: Choosing the Right Brake Controller
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Wiring
- Shop: Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Search Results: trailer brake controller
on Wiring
