Troubleshooting Lights After Installing 4-Way on 2014 Ford Fusion
Question:
This is more the question, I was sold the version for 2016-2018 and my car is a 2014. The one I should have been sent is Curt#56351 and not the 56302. Is there anything I can do to make it work? It's already fully installed and quite a pain to remove. Hope there is a modification I can make.
asked by: Christopher B
Expert Reply:
It is likely the result of a bad ground, but in order to determine the specific problem you'll need to use a circuit tester such as # PTW2993 to test the connector on your Fusion after disconnecting it from your trailer. Check the wiring going into your harness from your taillights to see if those wires are carrying the correct signals, if not then the issue is with the vehicle wiring. If the signals going to your harness are okay, you'll need to test the signals coming out of the harness, and if they are correct then your issue is likely going to be with the trailer side wiring.
An important issue you will want to take a look at are the ground connections, as they can be the cause of numerous lighting problems. You'll want to make sure your grounds are securely attached to bare metal surfaces free of any paint, dirt or corrosion of any kind. Also check your wiring thoroughly to ensure there are none that are crimped, broken or otherwise damaged. I've added links to a pair of help articles on trailer wiring that you may also find useful.
Products Referenced in This Question
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Powered Converter
- Custom Fit
- 4 Flat
- CURT
more information >
Product Page this Question was Asked From
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Trailer Wiring
- Video: Curt Custom Fit Vehicle Wiring - Trailer Hitch Wiring - C56351 Review
- Video: Curt T-Connector Vehicle Wiring Harness Installation - 2017 Ford Fusion
- Article: Trailer Wiring Diagrams
- Q&A: Trailer Running Lights Do Not Work but Brake Lights and Turn Signals Do Work
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Brake Controller Installation: Starting from Scratch
- Article: Testing Trailer Brake Magnets for Proper Function
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Q&A: How to Make an Adapter to Go from Semi Truck 7-Way Round to RV Style 7-Way Blade on Trailer
- Article: Troubleshooting Brake Controller Installations
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Trailer Turn Signals Both Blink when Just Left Turn Signal is Activated
- Q&A: Will The Curt Dinghy Wire Harness # C96JR Interfere With Activation Of A Blue Ox Patriot
- Q&A: Troubleshooting No Running Lights on Trailer but Turn Signals and Brake Lights Work
- Q&A: Checking Trailer Lights Without Hooking Up to Vehicle?
- Q&A: Trailer Lights Left Side Turn Signal and Brake Lights Not Working
Christopher
5/14/2018
This is more the question, I was sold the version for 2016-2018 and my car is a 2014. The one I should have been sent is Curt#56351 and not the 56302. Is there anything I can do to make it work? It's already fully installed and quite a pain to remove. Hope there is a modification I can make.