How To Wire the Reverse Light Wire for a Trailer on a 2017 Ford Expedition
Question:
I just purchased a 17 Ford Expedition. It came with a factory 4 way connector. I had my rv dealer install a 7 way, but they didnt wire up reverse lights to the aux pin like I requested. Am I ok splicing in to the backup light in one of the trail lights, or is there a better place to tap into the reverse lights?
asked by: Rik C
Helpful Expert Reply:
Yes, you can splice into the reverse light signal behind your tail light housing and then run this to the 7-way trailer connector. This is how the reverse light circuit will be obtained on any vehicle without tow package wiring for a 7-way. According to my research, the reverse light circuit on your Expedition is carried through the green/brown wire but I recommend you check this with a circuit tester. In order to splice into the reverse light wire, I recommend using part # SWC501746-1. You can then run a wire part # 16-1-1 to the back of the 7-way, see photo.
Products Referenced in This Question
Self-Stripping Connector with Waterproof Sealant - 14-18 Gauge - White and Blue - Qty 1
- Wiring
- Wire Connectors
- Quick Splice Connectors
- 18-14 Gauge
- Spectro
more information >
Product Page this Question was Asked From
Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- LCD Display
- Up to 360 Degrees
- Tekonsha
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: LED Trailer Fender Clearance Light - Submersible - 2 Diodes - Amber/Red - Driver or Passenger Side
- Shop: Demco Trailer Coupler - Flat Plate Mount - eZ-Latch - Black - 2-5/16" Ball - 21,000 lbs
- Shop: TecNiq Mini LED Trailer Fender Clearance Light - Submersible - Amber/Red - Driver or Passenger Side
- Shop: Durabilt Ratchet Chain Binder w/ Multiple Hooks for 3/8" to 1/2" Chain - 8,800 lbs
- Shop: Durabilt Double Clevis Link for 1/2" Chain - 11,300 lbs
- Q&A: Tapping into a Reverse Light Wire to Install a 7-Way Trailer Connector on a 2017 Ford Expedition
- Shop: Suspension Enhancement
- Search Results: tow chains
- Shop: Trailer Wiring
- Q&A: Wire Colors for 7-Way Trailer Connector on a 2007 Ford F-250/F-350
- Shop: Ford Replacement OEM Tow Package Wiring Harness, 7-Way
- Shop: Worklight Mounting Bracket for Rhino-Rack Pioneer Platform Rack
- Search Results: trailer backup lights led
- Shop: Brake Controller
- Video: Review of Edge Performance Chip - Jeep Gladiator Programmer w Monitor - EP49TR
- Article: Performance Chips and Modules
- Q&A: Trailer Lights Left Side Turn Signal and Brake Lights Not Working
- Shop: Performance Chip Tuners
- Search Results: yakima topwater
- Video: Choosing the Right Trailer Wiring
- Article: Trailer Wiring Diagrams
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Search Results: trailer hitch
- Shop: Trailer Hitch
- Search Results: hitch
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: trailer lights
- Article: How to Choose the Right Trailer Hitch Class
- Q&A: Lug Nut Torque Chart for Trailer Wheels
Conner L.
4/9/2019
Yes, you can splice into the reverse light signal behind your tail light housing and then run this to the 7-way trailer connector. This is how the reverse light circuit will be obtained on any vehicle without tow package wiring for a 7-way. According to my research, the reverse light circuit on your Expedition is carried through the green/brown wire but I recommend you check this with a circuit tester. In order to splice into the reverse light wire, I recommend using part # SWC501746-1. You can then run a wire part # 16-1-1 to the back of the 7-way, see photo.