Troubleshooting Curt T-Connector Not Working on a 2018 Ford F-150
Question:
Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector Item # C56413 I attached this to my 2018 Ford F-150 with an aftermarket brake controller. Once connected I attached it to my 27 ft camper. Lights worked so we tried the blinker left and right and both worked as soon as we applied the brake we lost all power to the camper. Iv tried everything I checked The fuses all were good. Removed the brake controller still no luck. Unplugged the harness and re applied no luck and Un hooked the battery and still no luck? Please could someone help!
asked by: Colton M
Expert Reply:
What I would do is try bypassing the tee connection on the Curt T-Connector # C56413. If you plug everything back up how it was before you installed this kit then you can test the 7-Way at the back of your 2018 Ford F-150 to see if everything is functioning properly again.
If it is functioning properly then the T-Connector needs to be replaced. If it isn't then you'll want to take a circuit tester # PTW2992 and check the OEM wiring from the rear as far forward as you can. While doing this also look for any places where the wiring is damaged or there are any bad connections. Even a bad ground that isn't connected to a clean, bare-metal surface can cause issues.
Once we get everything back up and running you'll want to check the ground connections on your trailer as well. Start with the brake circuit and span out from there. If this doesn't get resolved then you'll just keep having wiring issues.
Let me know if you're still needing help and I can look into it further.
Products Referenced in This Question
Product Page this Question was Asked From
Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Custom Fit
- 7 Round - Blade
- CURT
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Trailer Wiring
- Shop: Brake Controller
- Shop: Curt T-Connector Vehicle Wiring Harness with 7-Way Trailer Connector
- Video: Trailer Brake Controller Installation - 2018 Ford F-150
- Search Results: 55242
- Video: Hayes Energize III+ Trailer Brake Controller Installation - 2022 Ram 1500
- Shop: Custom Wiring Adapter for Hayes Brake Controllers - Dual Plug
- Shop: Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector
- Shop: Hayes Energize III+ Trailer Brake Controller - 1 to 3 Axles - Proportional
- Shop: 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End
- Shop: Curt Echo Wireless Brake Controller - 7-Way Plug Mount w/ Bluetooth App - 1 to 2 Axle - Proportional
- Q&A: 7 Way Connector for 2019 Ford F-150 without Factory Towing Package
- Q&A: Which 7 Way Trailer Plug for 2019 Ford F-150
- Q&A: Recommended Hayes - Proportional Trailer Brake Controller
- Q&A: Troubleshooting 12 Volt Power Circuit of 2019 Ford F-150 Trailer Wiring Not Active
- Q&A: Will Curt C51180 Echo Brake Controller Override Existing Aftermarket Brake Controller
- Q&A: Can 4-Flat Still be Used on 2018 Ford F-150 After Installing Curt 7-Way 56413
- Video: Curt T-Connector Vehicle Wiring Harness Installation - 2018 Ford F-150
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Can Converter Box On Curt 4-Way Wiring Harness Go Bad
- Shop: Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers
- Video: Choosing the Right Trailer Wiring
- Search Results: trailer brake controller
- Shop: Trailer Hitch
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Trailer Wiring Diagrams
- Video: Choosing the Right Brake Controller
- Search Results: brake controller
- Search Results: etbc7
- Article: How to Choose the Right Trailer Hitch Class