Wiring Diagram and Instructions for a Tekonsha Prodigy P3 Brake Controller
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Question:
Can the P3 90195 be wired to the factory brake controller wiring harness on a 2023 Ford Transit 350? If so, is there a schematic available to reference?
asked by: Marshal
Expert Reply:
That is the only way you'd be able to install the Tekonsha Prodigy P3 Trailer Brake Controller # 90195 on your 2023 Ford Transit T350 since there is no custom fit wiring harness.
To install this, you'll first need to find the cold side of the stop light switch which will only display voltage when the brake pedal is pressed. Once you've found this, you'll connect the red wire from the pigtail harness to it.
You'll then have to connect the black wire to the positive side on your battery, the white wire to the negative side of your battery, and the blue wire to the brake output wire on your 7-way.
Attached is a diagram from Tekonsha showing you how to hook these wires up.
If you don't already have a 7 way you'll need to add one by first adding a 4-pole with # C56327 then a 7 way with # ETBC7.
(click to enlarge)
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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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