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Old 03-05-2011, 03:25 PM   #1
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Fog Light Mod

Is there a way to mod the fog lights so that they stay on with the bright lights on? Thanks for taking the time to answer this question. Here is a picture from the passenger side with fuse box open.
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Old 03-05-2011, 04:06 PM   #2
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Could you tell what do you do, on the picture i don't see the modification. Thanks

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Old 03-05-2011, 04:10 PM   #3
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That is what I'm asking to see if anyone knows if I find out I'll post it here.
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Old 03-05-2011, 06:20 PM   #4
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OK, sorry for my english, i have think you have the solution for fog light......im waiting too for the fog light answer.
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Old 03-05-2011, 06:38 PM   #5
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Ya dude, I have mine done that way. I have a wire that goes from the battery to the switch, a wire to ground then a wire that goes between the two lights to the headlights. If you take the headlight plug off and stick the wire in the same hole as the high beam part of the plug it works great. Basically plug the wire into the slot with the plug itself so they are both plugged into it. That was kind of confusing. Let me know if that made since. Ill try and find my old instructions that tell me how to do it and il post that up here
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Old 03-05-2011, 07:35 PM   #6
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Yea try and find those directions for me please because that confused the poo out of me.
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Old 03-05-2011, 08:04 PM   #7
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I cant find my actual instructions but try this How To Wire Fog And Driving Lights Harness Wiring Diagram That has the same idea
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Old 03-06-2011, 06:18 AM   #8
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Why do you want to do it anyhow? This has always baffled me.
Highbeams are for seeing distance at speed. Foglights are for seeing close-range at crawl.
Foglights constrict your pupils and ruin your distance vision...

Why not just install some supplemental lights?

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Old 03-06-2011, 10:42 AM   #9
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This just sounds silly to me.
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Old 03-06-2011, 10:58 AM   #10
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Quote:
Originally Posted by Hilldweller View Post
Why do you want to do it anyhow? This has always baffled me.
Highbeams are for seeing distance at speed. Foglights are for seeing close-range at crawl.
Foglights constrict your pupils and ruin your distance vision...

Why not just install some supplemental lights?
I believe the reasoning is so your jeep looks as cool as possible with 15000 different lights on while your driving, not for the efficiency of the lights.

I agree, I see no need for this mod. I have all the lights I need but plan on mounting two more driving lights sometime soon.
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Old 03-06-2011, 11:05 AM   #11
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Thats right-it's not a REAL jeep unless it's got D-rings hanging on all corners/lights all over the front, with as many lights as possible ON TOP and a rack with a HiLift/Shovel/AX bolted toit-

Oh, I forgot, gotta have a basket on top-

Now thats a real off-roader !!

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Old 03-06-2011, 11:05 AM   #12
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Is it for us to judge why the OP wants to do this? He asked a reasonable and civil question, so please answer in a civil manner.
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Old 03-06-2011, 11:06 AM   #13
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I do not know if this will help, but here it goes.

I did something similar to this on a previous vehicle that I had. I wanted my low beams on at the same time as my high beams (4-bulb system, not two like our Jeeps) I ran a wire connecting the two ground wires from the low beam bulbs to a permanent ground because when the high beams were turned on, the system ungrounded the low beams turning them off.

This may also be what is turning our fog lights off. So maybe, if you run a permanent ground wire from a spot on your JK to the ground wire on your fogs they may stay on when your high beams are on.

DISCLAIMER
***I would not try this with the high/low beams because our JKs are a two bulb system and this could cause a lot of heat in the bulbs causing lower life and possibly a fire.***

I have NOT tried this on my JK, but it may be something to look at.

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Old 03-06-2011, 11:29 AM   #14
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Thats another function of the AEV Procal Module-


Quote:
Originally Posted by knnphillips View Post
Is there a way to mod the fog lights so that they stay on with the bright lights on? Thanks for taking the time to answer this question. Here is a picture from the passenger side with fuse box open.


It can alter the ops of the Can-bus pwr system and you can do just about anything with your STOCK lights !!

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Old 03-06-2011, 11:48 AM   #15
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the reason for doing this mod. is so the aera in front of the jeep is lit up when the high beams are on, no other reason. i to have been looking at this mod, but i dont think it can be done with the can-buss electrical system
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Old 03-06-2011, 04:39 PM   #16
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Quote:
Originally Posted by Barrie in Utah View Post
Is it for us to judge why the OP wants to do this? He asked a reasonable and civil question, so please answer in a civil manner.
I gave him a very civil answer and queried his motivation.
It is, after all, illegal to do what he's thinking of. And I doubt that WF supports illegal mods...

I considered the possibility that he didn't know that fogs would interfere with his distance sight and passed that information along.

Now where will I mount my basket and shovel? All my free space is occupied by ostentatious auxiliary lighting...
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Old 03-06-2011, 05:20 PM   #17
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Yea the illegal thing too... anyways I think OP has a JK but Im too lazy to look, ill admit. I know there is a thread on here for TJs about bending a piece of the fuse, im not sure if it works for JKs or not. search for it buddy.
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Old 03-06-2011, 05:35 PM   #18
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Quote:
Originally Posted by Hilldweller View Post
I gave him a very civil answer and queried his motivation.
It is, after all, illegal to do what he's thinking of. And I doubt that WF supports illegal mods...
Not trying to stir the pot, just trying to get information.

Is this illegal in your state or all states? As far as I know, here in Wisconsin, you can have no more than 4 forward facing white lights, so having the clear fogs or driving lights on with the high beams would still be legal.

To me having the fogs on with the high beams helps to illuminate the sides of the roads at night which helps to see suicidal animals.

I have thought about doing this but have not done it to my JK yet.
My TJ had aftermarket driving lights that were not connected to the headlights so they stayed on with the low or high beams.

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Old 03-06-2011, 05:49 PM   #19
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fog and driving lights are different. fogs are yellow driving are white. Ive never seen white fogs, because that defeats the purpose of the light. I believe it is illegal in all states, thats why they all come what way.

And Hildweller may I ask what brand your headlights are?
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Old 03-06-2011, 06:28 PM   #20
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Actually the difference between fog and driving has nothing to do with the color. This link to a thread from another site explains it better than I ever could. (there is also a diagram) Driving Light VS Fog light - JeepForum.com

Hope this helps.

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Old 03-06-2011, 06:31 PM   #21
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"...fogs are yellow driving are white. Ive never seen white fogs, because that defeats the purpose of the light."

Where did you get that idea? Not true.
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Old 03-06-2011, 06:42 PM   #22
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Quote:
Originally Posted by knnphillips View Post
Is there a way to mod the fog lights so that they stay on with the bright lights on?

The Dealer can do it, but may not if it's illegal in your state. It's legal in Europe.


Quote:
Originally Posted by JIMBOX View Post
Thats another function of the AEV Procal Module-
Quote:
Originally Posted by JIMBOX View Post

It can alter the ops of the Can-bus pwr system and you can do just about anything with your STOCK lights !!

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I have a ProCal, but don’t see how I can use it to affect my fog lights. Did they change the way it works recently?
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Old 03-06-2011, 06:48 PM   #23
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This is my 03 tj sport (red) 6cy std shift just incase someone interest in what kind of Jeep I did it on.
Mine have been wired like this due to the multi switch on the left side of the steering column was too costly to change when the fog lights used to stay on or come back on automaticly after I shut the jeep down. I went to my local Chrysler dealer and asked for a wiring diagram of the switch. He gave me one (free) and told me to cut the orange/white wire. I put another switch on the left side of steering wheel in the dash (you can put it anywhere-but I didn't want to run allot of wires) I connect 1 wire to one end of the wire I had cut from the switch (orange/white wire) and ran it to my switch and other end of it to the other connection on my new switch. Now when I pull the older switch to make the fogs come on I must first turn the new switch on to give it power. This way I control the fogs... if I want them on with my highbeam or lowbeam its up to me.. MY choice. Just remember to turn the (new switch) off also make sure the old switch is pushed in (off position) b/4 leaving you jeep as it could kill the battery with the main switch left on as the fogs will be on..The multi-switch still works as usual for your turn/signal/headlights/parking lights.
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Old 03-06-2011, 06:50 PM   #24
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I haven't changed mine, cause I don't have any reason to alter my fog light program, but


Quote:
Originally Posted by joe002 View Post
The Dealer can do it, but may not if it's illegal in your state. It's legal in Europe.



I have a ProCal, but don’t see how I can use it to affect my fog lights. Did that change the way it works recently?
In your AEVPM manual, checkout the Daytime Running lights settings -they mention the fog light ops-

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Old 03-06-2011, 06:55 PM   #25
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Okay, as in the purpose of fogs lights, the light is meant to be yellow, because it works better in fog, and driving or headlights are white, which allow you to see further than yellow lights. so traditionally fogs are yellow and driving lights are white. I have never seen yellow high beams and all stock aux fogs on jeeps are yellow, not white, at least on the jeeps I have seen.

The statement that it defeats the purpose is because, have you ever noticed how the white light of high beams doesnt show through precipitation or fog as well as low beams with fogs?

There is debate about the application of Rayleighs scattering law when it comes to headlights, but for many years and still today most light manufactures say that the yellow light of fog lights (which is made of two different types of light) are the best middle ground for being effective at lighting with the least amount of deflection while being clear and easy on the eyes, because of the wave length of yellow light.

There are some who dispute that there is any affect between colors or light, but that is why 99% percent of stock fogs are yellow and driving lights white. because it works best. I havent dont alot of study on this stuff just a little but thats my understanding, since you all had to flip out about it...
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Old 03-06-2011, 06:57 PM   #26
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Dan I read your link, and while it does explain the angles and mounting of the different makes of KC lights, it doesnt discuss color. I dont know the color of the lights either, just that my long range are white.
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Old 03-06-2011, 07:00 PM   #27
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Quote:
Originally Posted by JIMBOX View Post
...In your AEVPM manual, checkout the Daytime Running lights settings -they mention the fog light ops-

JIMBO
Yeah, I've looked at the Daytime Running Lights section, but you can only set it so your Fog lights will be your DTRLs. I guess if you set your fog lights to DTRLs and then turn on your high beams then maybe they'll just stay on? I don't really want to leave my fog lights on all of the time.
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Old 03-06-2011, 07:02 PM   #28
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"...fogs are yellow driving are white. Ive never seen white fogs, because that defeats the purpose of the light."

Where did you get that idea? Not true.
This is something that I had heard and now, because you called me out, I did some research. This is the info:
Front fog lamps
Front fog lamps provide a wide, bar-shaped beam of light with a sharp cutoff at the top, and are generally aimed and mounted low.[10][11][12] They may be either white or selective yellow. They are intended for use at low speed to increase the illumination directed towards the road surface and verges in conditions of poor visibility due to rain, fog, dust or snow. As such, they are often most effectively used in place of dipped-beam headlamps, reducing the glareback from fog or falling snow, although the legality varies by jurisdiction of using front fog lamps without low beam headlamps.

Use of the front fog lamps when visibility is not seriously reduced is often prohibited (for example in the United Kingdom), as they can cause increased glare to other drivers, particularly in wet pavement conditions, as well as harming the driver's own vision due to excessive foreground illumination.[13]

The respective purposes of front fog lamps and driving lamps are often confused, due in part to the misconception that fog lamps are necessarily selective yellow, while any auxiliary lamp that makes white light is a driving lamp. Automakers and aftermarket parts and accessories suppliers frequently refer interchangeably to "fog lamps" and "driving lamps" (or "fog/driving lamps"). In most countries, weather conditions rarely necessitate the use of fog lamps, and there is no legal requirement for them, so their primary purpose is frequently cosmetic. They are often available as optional extras or only on higher trim levels of many cars. Studies have shown that in North America more people inappropriately use their fog lamps in dry weather than use them properly in poor weather.[14]


I found it here: Automotive lighting - Wikipedia, the free encyclopedia
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Old 03-06-2011, 07:03 PM   #29
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Even though I stay out of any light discussions-My headlights/High/lowlights are "Yellow" , Ha ha ha !!and my driving lights are wide beam 55 watters--"WHITE"


Quote:
Originally Posted by GoldenSahara00 View Post
Okay, as in the purpose of fogs lights, the light is meant to be yellow, because it works better in fog, and driving or headlights are white, which allow you to see further than yellow lights. so traditionally fogs are yellow and driving lights are white. I have never seen yellow high beams and all stock aux fogs on jeeps are yellow, not white, at least on the jeeps I have seen.

The statement that it defeats the purpose is because, have you ever noticed how the white light of high beams doesnt show through precipitation or fog as well as low beams with fogs?

There is debate about the application of Rayleighs scattering law when it comes to headlights, but for many years and still today most light manufactures say that the yellow light of fog lights (which is made of two different types of light) are the best middle ground for being effective at lighting with the least amount of deflection while being clear and easy on the eyes, because of the wave length of yellow light.

There are some who dispute that there is any affect between colors or light, but that is why 99% percent of stock fogs are yellow and driving lights white. because it works best. I havent dont alot of study on this stuff just a little but thats my understanding, since you all had to flip out about it...
Now back to your originally scheduled program !

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Old 03-06-2011, 07:09 PM   #30
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Haha thanks jimbo, and okay! I know my low beams are yellow and high beams are white? must be a JK thing :P

and Dan, Im not starting an arguement, because thats not what this forum is about. You guys just all jumped me on and I explained my thought process and what my knowledge on the subject is. I will admit to being wrong, because thats very possible. All I know is what I have read and been told before.

As for the wikipedia reference... It says white or yellow, but later says that fog and driving are used interchangably. and I know that according to the diagram that you supplied earlier, that there is a difference in the beam patter of driving and fog lights, so there is a difference. so wiki doesnt give solid proof that fogs are yellow or white, just that fogs and driving lights can be yellow or white. anyways I know there are white fogs, but stock I know on TJs they are yellow. Im dont posting on this because I know Barrie will tell us stop stop arguing soon or later, and I also want to be respectful to the OP and not fill this thread with pointless arguing. Good day.

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