Adapter to Allow LED Trailer Wiring to Connect to 2019 Ford F-150
Updated 07/31/2025 | Published 06/07/2019
Question:
I have a new Ford F-150 with the max tow package and extras such as Blind Spot Monitoring with the Trailer Tow Package and an integrated brake controller. When connected it runs the trailer lights, but doesnt recognize the trailer connection and, as a result, the Blind Spot Monitoring and the break controller dont work, whereas the Pro Backup Assist for the configured trailer works and I can get power for my plug-in electric hitch. Ive been looking into it and have heard several comments that the trailer 2017 has LED lights which dont draw enough load current and that I can purchase some sort of device which mimics a load, so the system can activate. Thanks
asked by: Paul S
Helpful Expert Reply:
The 2019 Ford F-150 trailer wiring DOES NOT like trailers with LED taillights or lightbars that attach to the vehicle and use trailer wiring for activation. This is a problem we saw first with German vehicles a while back and an adapter was made to help part # C57003. This has load resistors built into it so that your trailer thinks it's connected to a trailer with incandescent bulbs and everything will work like normal.
Product Page this Question was Asked From
7-Way Trailer Adapter for Towing Trailers with LED Lights
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- No Tow Package
- 7 Blade
- Plug and Lead
- Plug-In
- CURT
more information >
Continue Researching
- Shop: Trailer Wiring
- Shop: 7-Way Trailer Adapter for Towing Trailers with LED Lights
- Shop: 7-Way to 4-Way/5-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs
- Video: A Closer Look at the 7-Way Trailer Adapter for Towing Trailers with LED Lights
- Search Results: trailer lights
- Search Results: led strip lights
- Video: Curt 7-Way to 4-Way/5-Way Trailer Adapter Review
- Search Results: 7 pin to 7 pin adapter
- Video: Let’s Check Out the LED Trailer Tail Light w/ Flange
- Search Results: tailgate ladder
- Shop: TecNiq Low Profile Stop Tail Turn Light - 15.5" - Clear Lens
- Q&A: Difference Between Tow Ready # 20142 and Curt # C57003 Adapters with Lamp-Out Sensors
- Search Results: steel wheels
- Shop: Replacement Rubber Snap-In Valve Stem - 1-1/2" Long - Up to 100 psi
- Search Results: trailer tires and wheels
- Search Results: spare tire wheel
- Shop: RV Roof Membrane
- Video: Review of Curt Wiring - Wiring Adapters - C35FR
- Q&A: Is Snap On Reflector Ring part # A78RXB Optronics Brand Replacement Part
- Shop: Optronics Thinline LED Utility Light Bar - Submersible - 11 Diodes - Clear Lens - 15" Long
- Shop: Americana Metal, Bolt-In Valve Stem - 1-1/4" Long
- Shop: Dexstar Steel Mini Mod Trailer Wheel - 16" x 6" Rim - 6 on 5-1/2 - White Powder Coat
- Q&A: 7-Way To 4-Flat Adapter With Resistor For LED Lights
- Video: Hands-On Review with the BTBRV Magnetic Hitch Receiver Reducer Sleeve
- Shop: Truck Topper
- Article: Trailer Wiring Diagrams
- Q&A: Recommended Made in USA 16 x 6 Trailer Wheels With 6 on 5-1/2 Bolt Pattern
- Q&A: What Rim Widths Compatible with Taskmaster ST235/80R16 Radial Trailer Tire TTWTRTM2358016E
- Shop: RV Exterior Lighting
- Shop: Brake Controller
Dave
7/29/2020
Is there an adapter for a 4 pin connector?