Trailer Running Lights Lit All the Time w/Curt Trailer Wiring Harness Installed in 2013 Ford Focus
Question:
I have a 2013 Ford Focus Titanium Sedan. I ordered and have installed the Curt wiring Harness C56138 which is recommended for my car. I installed it exactly as described/shown in your video. The brake lights, turn signal lights all work, however the parking lights are lit all the time. As soon as the plug is connected they light up. This happens even if the car is not running. Any ideas on thus issue or have you heard of this issue before. Thank you.
asked by: David M
Expert Reply:
Does your trailer happen to have LED lights? If so then what is happening is the little bit of power that is on wiring harness # C56138 is enough to dimly light up LED lights. This is because the wiring harness is a powered harness and LED lights draw such little power. We hear about this issue less with the Tekonsha harness # 118548.
It is also possible that there is a short drawing power. Make sure the trailer connectors are clean and free of corrosion. Also check the wiring on the trailer from the connector back to the running lights. If there are any pinched or damaged wires that are exposed that could be causing a short.
I have also included a link to our help article on troubleshooting 4-Ways for you.
Products Referenced in This Question
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Powered Converter
- Custom Fit
- 4 Flat
- Tekonsha
more information >
Product Page this Question was Asked From
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 >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Q&A: Replacement Hubs for 4 Place Aluminum Newman Snowmobile Trailer With Dual Axles
- Shop: Trailer Hitch
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class I - 1-1/4"
- Search Results: bearing buddy
- Shop: Trailer Wiring
- Video: Optronics Trailer Lights - Tail Lights - STL22RB Review
- Video: Optronics Trailer Lights - Tail Lights - STL22RCB Review
- Video: Optronics Miro-Flex Clear Lens Trailer Tail Light Review
- Video: Best 2013 Ford Focus Hitch Options
- Video: Curt Trailer Hitch Installation - 2013 Ford Focus
- Shop: Bearing Buddy Bearing Protectors - Model 1980-SS - Stainless Steel (Pair)
- Shop: Grease Seals (pair)
- Search Results: gromet
- Search Results: 421~18
- Search Results: oval rubber grommets
- Search Results: grommet
- Shop: LED Trailer Clearance or Side Marker Light - Submersible - 3 Diodes - Round - Clear Lens w/ Red LEDs
- Shop: Optronics LED Trailer Turn Signal and Parking Light - Submersible - 10 Diode - Oval - Clear Lens
- Shop: GloLight LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 22 Diodes - Oval - Red Lens
- Shop: Miro-Flex LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 12 Diodes - Clear Lens
- Video: Choosing the Right Trailer Wiring
- Q&A: Replacement Hub Needed for Lippert 122093 Hub on 5,200 lbs Axle
- Search Results: 44649
- Article: How to Choose the Right Trailer Hitch Class
- Search Results: 68149
- Article: Trailer Wiring Diagrams
- Q&A: How to Determine if Trailer Axle is Not Aligned and How to Measure to Replace Trailer Axle
- Video: Choosing the Right Brake Controller
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Recommended Replacement for Atwood Surge Brake Actuator 85778
on Custom Fit Vehicle Wiring
