? rewiring fog lights
Thread Starter
Racer
Joined: Apr 2008
Posts: 373
Likes: 2
From: White Plains NY
? rewiring fog lights
Hi all,
Has anyone been able to rewire the fog lights so that they stay on w/ the high beams on but still be able to turn them off independently from the low beams?
thanks,
Mike
Has anyone been able to rewire the fog lights so that they stay on w/ the high beams on but still be able to turn them off independently from the low beams?
thanks,
Mike
Le Mans Master
Joined: Aug 2000
Posts: 6,486
Likes: 1,659
From: Las Vegas NV
The fogs are controlled by the car's computer, namely the (in)famous Body Control Module -- there is not just a high-beam inhibit feed as there is in other cars.
In order to control them independently, you'd have to create a dedicated circuit and switch to supply power to the foglights' relay in the underhood fuse block. This would mean some creative wiring if you would still want them to be subordinate to the headlights' being on or off.
In other words:
*Easy if you just want them on a totally independent circuit and add-on switch (much like aftermarket fogs would be).
**More difficult if you still want them to turn on/off with the car's headlamps.
***Much more difficult (but still doable) if you still want them controlled by the OEM fog switch.
Cheers,
Kent
In order to control them independently, you'd have to create a dedicated circuit and switch to supply power to the foglights' relay in the underhood fuse block. This would mean some creative wiring if you would still want them to be subordinate to the headlights' being on or off.
In other words:
*Easy if you just want them on a totally independent circuit and add-on switch (much like aftermarket fogs would be).
**More difficult if you still want them to turn on/off with the car's headlamps.
***Much more difficult (but still doable) if you still want them controlled by the OEM fog switch.
Cheers,
Kent
Last edited by Kent1999; Oct 13, 2008 at 10:25 PM.
Safety Car
Joined: Aug 2005
Posts: 4,279
Likes: 82
From: North Strand, NMB, SC; Retired x 2 (US Army: 70-90 AD) (US Army: 91-16 DAC); yea, I'm old.
and unless your inspection station is willing to look the other way and a) face very hefty fines and b) lose their inspection station certification if it is discovered, I don't think you will pass the equipment/safety part of the inspection process.Besides, fog lights are designed to illuminate the shoulder and center of the roadway and not to project the light further than 20' or so in front of the car.
If you want more light projected ahead of the car, have driving lights installed; there are plenty of manufacturers who make low profile driving lights that you could adapt to fit your needs.
Thread Starter
Racer
Joined: Apr 2008
Posts: 373
Likes: 2
From: White Plains NY
and unless your inspection station is willing to look the other way and a) face very hefty fines and b) lose their inspection station certification if it is discovered, I don't think you will pass the equipment/safety part of the inspection process.Besides, fog lights are designed to illuminate the shoulder and center of the roadway and not to project the light further than 20' or so in front of the car.
If you want more light projected ahead of the car, have driving lights installed; there are plenty of manufacturers who make low profile driving lights that you could adapt to fit your needs.
Mike
Drifting
Joined: Nov 2004
Posts: 1,923
Likes: 62
From: California
I've done it about 3 times in my previous car where the fog lights stays on when you high beam, giving me total of 6 lights (fogs, low-beam, and high-beam) I had to run a relay and tap the fog light trigger to my parking light. So when the parking-light or low-beam in on, the fog lights are on. All you need is fog light wiring-kit with a 9005 type bulb socket. Run the power directly to the battery (fused of course) and run the trigger switch to the parking lights. No factory wiring to cut at all, and its totally reversable. The only bad thing is that you loose the function of the factory fog light switch while you're on this wiring kit.
Last edited by DJackman; Oct 14, 2008 at 02:07 PM.
Thread Starter
Racer
Joined: Apr 2008
Posts: 373
Likes: 2
From: White Plains NY
I've done it about 3 times in my previous car where the fog lights stays on when you high beam, giving me total of 6 lights (fogs, low-beam, and high-beam) I had to run a relay and tap the fog light trigger to my parking light. So when the parking-light or low-beam in on, the fog lights are on. All you need is fog light wiring-kit with a 9005 type bulb socket. Run the power directly to the battery (fused of course) and run the trigger switch to the parking lights. No factory wiring to cut at all, and its totally reversable.
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Thread Starter
Racer
Joined: Apr 2008
Posts: 373
Likes: 2
From: White Plains NY
Mike
Drifting
Joined: Nov 2004
Posts: 1,923
Likes: 62
From: California
