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Does Curt T-Connector Vehicle Wiring Harness Interact With 2025 Ford F-150 Tremor Computer  

Updated 03/30/2026 | Published 03/24/2026

Question:

Hi. Does this trigger the trucks computer to think there is a trailer attached? I want to use this harness to power aux lights for brakes and turn signals on a 2025 F150 Tremor. Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector Part Number: C75WR

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Expert Reply:

Hey Chris! The Curt T-Connector Vehicle Wiring Harness # C75WR will not interact with the computer on your 2025 F-150 Tremor. This completely bypasses all of those integrated systems. The converter gets power form the hot lead running to the battery and then the signals come through your tail lights where the T-connectors are attached.

Are you adding an LED light bar under the tailgate or something else?

expert reply by:
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Robin H
Curt T-Connector Wiring Harness
Curt T-Connector Wiring Harness
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Chris profile picture

Chris

3/30/2026

Thank you. Yes. I'm adding a light bar and additional turn indicators.

Robin H. profile picture
Etrailer Expert

Robin H.

3/30/2026

@Chris you're welcome. I'm sure it will look really good once you get it all set up!

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