Is 12 Volt Accessory Circuit Required on 7-Way to Install Brake Controller
Question:
Hi, I ve checked out my wiring on my 2005 Ford Expedition. It has a factory 4-pin wire going to the back, and the brake controller connector has the blue, red white and black wires which I think is all thats needed to hook up to the Tekonsha P3. My question is, why do I need to run an additional 12V power line to the back? Doesnt the blue wire coming from the controller provide power for the trailer brakes? I dont want any power to the trailer other than the standard tail/signal lamps. Thanks again for your expert help.
asked by: Rick M
Expert Reply:
If you have only the need for a brake controller output circuit on the 7-way you do not need to activate the 12 volt power accessory circuit. Those two circuits are independent of each other.
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 >
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