How to Install a Brake Controller in a 2004 Lincoln Navigator with Factory 4-Way
Question:
have 04 lincoln navigator with 4 plug trailer connrctor need to connect a 7 plug rv tailer and eletric brake controller what part numbers i need
asked by: Joseph M
Helpful Expert Reply:
To install a brake controller like our best selling P2 Brake Controller part # 90885 in your 2004 Lincoln Navigator all you would need is the harness part # 3035-P and the 7-way adapter part # 37185.
To wire in the # 37185 to the vehicle wiring so that the wiring brake controller is activated you will need to follow the 4-way trailer connector wires from the trailer connector to the front of the vehicle. These wires connect to a factory plug along the frame rail, usually on the driver's side, between the back tires and the rear bumper. The factory plug should be mated to another connector which has wiring that continues back toward the bumper.
There are more wires coming from the front of the vehicle than there are coming out toward the 4-Way plug. Ford wires the front of the vehicle as if it will be manufactured with a 7-Way plug, so all the 7-Way wires are run to this connector on the frame rail. This allows a 7-Way wiring harness to simply plug in line with the wiring coming from the front of the vehicle. If the vehicle were made with a 4-Way plug, it would plug into the same connector. Because a 4-Way plug would not require them, the additional wires are terminated at the pictured set of mated connectors.
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Products Referenced in This Question
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
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Tekonsha Prodigy P2 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
- LED Display
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Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
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- etrailer
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Product Page this Question was Asked From
Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - Ford, Lincoln, Mercury
- Accessories and Parts
- Trailer Brake Controller
- Wiring Adapter
- Plugs into Brake Controller
- Vehicle Specific
- Tekonsha
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