fog lights with LED bulb to DRL the easy way
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Joined: Jun 2006
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From: West-Central
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
fog lights with LED bulb to DRL the easy way
Thought I may share this, since I could not find any related information anywhere when I was looking.
Here is a very simple way to allow the fog lights to work independently from the park and/or driving lights.
This allows the fog lights to be used as manually controlled DRL.
This is on a 91 GTA, but the idea of using an "ignition ON, hot wire" to power the O.E. fog light switch should work on many other cars too.
On the right is the O.E. fog light switch, the braun (park and/or driving ON, positive wire)wire needs to be cut and spliced to a "ignition ON, hot wire".
Here in this case it is spliced to the defroster switch pink/black positive wire that stays hot with ignition/ON.
The black isolation tape is to isolate the wire that is no longer used.
Here is a very simple way to allow the fog lights to work independently from the park and/or driving lights.
This allows the fog lights to be used as manually controlled DRL.
This is on a 91 GTA, but the idea of using an "ignition ON, hot wire" to power the O.E. fog light switch should work on many other cars too.
On the right is the O.E. fog light switch, the braun (park and/or driving ON, positive wire)wire needs to be cut and spliced to a "ignition ON, hot wire".
Here in this case it is spliced to the defroster switch pink/black positive wire that stays hot with ignition/ON.
The black isolation tape is to isolate the wire that is no longer used.
Last edited by thomas1976; Feb 11, 2015 at 03:02 PM.
Joined: Mar 2008
Posts: 2,943
Likes: 20
From: Boston, MA
Car: 1983 Pontiac Trans Am Daytona 500
Engine: Crossfire 305ci V8
Transmission: Jasper 700R4 4 speed Automatic
Axle/Gears: 3.23 limited slip/posi
Re: fog lights with LED bulb to DRL the easy way
Awesome
Last edited by KITT1983; Feb 23, 2014 at 09:30 PM. Reason: iPhone error
Thread Starter
Supreme Member
Joined: Jun 2006
Posts: 2,199
Likes: 1
From: West-Central
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
Re: fog lights with LED bulb to DRL the easy way
Are you saying that because you have no fog lights? 
Joined: Mar 2008
Posts: 2,943
Likes: 20
From: Boston, MA
Car: 1983 Pontiac Trans Am Daytona 500
Engine: Crossfire 305ci V8
Transmission: Jasper 700R4 4 speed Automatic
Axle/Gears: 3.23 limited slip/posi
Joined: Mar 2008
Posts: 2,943
Likes: 20
From: Boston, MA
Car: 1983 Pontiac Trans Am Daytona 500
Engine: Crossfire 305ci V8
Transmission: Jasper 700R4 4 speed Automatic
Axle/Gears: 3.23 limited slip/posi
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Posts: 1,165
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From: Valdosta, GA
Car: 1991 Trans Am GTA
Engine: L98(5.7 L TPI)
Transmission: 700r4(A4)
Axle/Gears: G80 RPO, 3:23s, Auburn Racer's Diff
Re: fog lights with LED bulb to DRL the easy way
when wired this way, do the fog lights turn off with the high beams? I wonder if a jumper could be used to connect the brown wire to the pink wire with the black stripe without isolating the brown wire
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Thread Starter
Supreme Member
Joined: Jun 2006
Posts: 2,199
Likes: 1
From: West-Central
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
Re: fog lights with LED bulb to DRL the easy way
I have not tried it, but I'm sure the fogs will stay on if you do not turn them off.
Brown connected to pink, will probably cause short circuit.
Brown connected to pink, will probably cause short circuit.
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