Troubleshooting Wiring Issues with 2008 Ford F-150 with Factory Tow Package
Question:
I have a 2008 F150 with factory tow package and it has the 7 wire round / 4 wire flat deal on the back. All connectors are dead except for the live all the time 12v for the relay that controls the electric brakes that I fixed I would assume.I have broken/ corroded/ disintegrated connections in that rear factory wiring setup. All my lights work on the truck so I was wondering if I could do the plug and play to bypass the factory garbage? If not Ill do the hard wire option please let me know as I need to do something for next weekends snowmobiling trip to TugHill NY
asked by: Leonard D
Expert Reply:
If all your connections are bad, you may just have a bad connector and need the replacement # HM40975 and a few fuses. If you've already used a circuit tester like # PTW2993 to check the wiring functions individually and the fuses outlined in your owners manual, then you can Plug-N-Tow Vehicle Wiring Harness # 40185 or if those plugs aren't working either the hardwire # 18252.
Once you have a 4-way, you can use the Hopkins Adapter 4-Pole to 7-Pole and 4-Pole # 37185 and simply splice into the 12V and brake controller functions you have fixed.
I've attached an article on wiring to assist. I recommend using dielectric grease # 11755 to keep moisture and debris out of your connections so you don't have further issues.
Products Referenced in This Question
Dielectric Grease for Electrical Connectors, 2 oz.
- Accessories and Parts
- Trailer Wiring
- Wiring
- Dielectric Grease
- LubriMatic
more information >
4-Way Flat Trailer Connector w/ 72" Harness, Circuit Tester and Wire Taps
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- 6 Feet Long
- Universal Fit
- 4 Flat
- Tekonsha
more information >
Adapter 4-Pole to 7-Pole and 4-Pole
- Trailer Wiring
- Wiring Adapters
- Multi-Function Adapter
- 4 Flat
- Plug and Lead
- 4 Flat
- 7 Round - Blade
- Hopkins
more information >
Plug-N-Tow (R) Vehicle Wiring Harness
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 4 Flat
- Hopkins
more information >
7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 7 Round - Blade
- 4 Flat
- Hopkins
more information >
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