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High Beam Trigger Wire

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Old Apr 18, 2025 | 02:20 PM
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Default High Beam Trigger Wire

Has anybody found out a way to get a HIGH BEAM trigger without using the PAC canbus module on a 2021+ F150? LED Headlights don't have a +12V high-beam anymore, as it's controlled via the CANBUS and done internally in the headlight. Like many, I want to trigger a relay (which will trigger some off-road lights) when my high-beam goes off. BUT again, LED headlights have no +12VDC high beam trigger. Sooo anybody come up with a solution (OTHER then the PAC module, which I hear is problematic).
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Old Apr 18, 2025 | 04:32 PM
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If it were me and I had to have such lighting control, a separate light sensing Relay power control circuit to the Aux lights would do it and be fully independent of the vehicle electronics. This would also require it to be active only with the Ignition on or off as you want it to be.
This would require a design ability to accomplish.
A Photo Cell or solid state device and a Relay circuit would be needed.
Oherwise Manuel switching is simple to do.
Good luck.
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