Bambi mode without fog switch pulled
Fleet Mechanic
Joined: Oct 2017
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From: Southwest Ohio
Most, if not all, state laws dictate that when your high beams are on any additional lights (fog lights) must be off. That’s why all modern cars kick the fog lights off when you toggle the high beams. The work-around would be to just tap into the high beam lead and run your fogs off that hot wire.
— Dave
— Dave
Lead Driver
Joined: Dec 2006
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From: San Diego, CA
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You can only have so much light (wattage) on at a time on public roads. I'm not sure of the wattage requirements but the low beams + fog lights don't exceed that. The high beams are pushing that limit so no other lights can be on which is why the fogs are defeated as Djosbun said.
I'm not sure what year your truck is but here is a workaround for the 99-04 SD: https://www.ford-trucks.com/forums/1...l#post18133735
I'm not sure what year your truck is but here is a workaround for the 99-04 SD: https://www.ford-trucks.com/forums/1...l#post18133735
Post Fiend
Joined: Nov 2001
Posts: 6,748
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From: Tallassee, ALabama
Most, if not all, state laws dictate that when your high beams are on any additional lights (fog lights) must be off. That’s why all modern cars kick the fog lights off when you toggle the high beams. The work-around would be to just tap into the high beam lead and run your fogs off that hot wire.
— Dave
— Dave
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