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Old 01-30-2005, 01:46 PM   #1
rlith
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Factory fog lamp switch with non factory fog lamps.

Well, I finally got tired of the original fog light switch I was using from Radio Shack. as it didn't fit with my interior really well. I finally decided to try and wire in a factory fog light switch to my truck that did not have the fog light harness installed as it does with the 98+ models even if it doesn't come with fog lights. Well I have to say it was a resounding sucess and I'm very pleased with it. I had to wire my upper fogs to only be able to be turned on with the lights and go off with highbeams due to the law.
I do have an upgraded harness do to the fact that I have a hidden switch that turns on both sets of fogs, (top 55watt, bottom 100 watt), my low beams (silvania silverstars) and my highs (APC white 125 watts) at the same time to force those morons who refuse to turn off their highbeams after you flash them. I figure that a little bit of retina ghosting will teach them a lesson for the future! :bounce:
But today we will be covering the simple 2 lamp fog light wiring.
Parts Needed:
Fog lamps (Your choice)
GM Switch part # 15953150
4 or 5 wire sealed relay (you can also get specific fog lamp relays with wires attached)

Here is my old switch...Simple radioshack toggle switch.

Here is the Factory Switch.

Here is the back of the new switch..

You will see that Pin 1 is opposite the key.
Wiring is as follows.
Pin-1---12v+ from headlamp
Pin-2 & Pin-5 splice together to go to 85 on relay
Pin-3 Brown on light switch (to light the switch itself with regular lights on)
Pin-4 Ground.
Relay-
85 from Pin 2/5 on switch
30 to Battery
86 to ground
87 to positve on fog lamp
Foglamps.
Splice 12v+ together to 87 on relay
Grounds to frame or relay ground. (I prefer frame)
Here is the finished pic..



Optionally you can replace the lights in the switch with your favorite color LED's. Requirements are as follows
LED-3mm (no bigger) 2500 CMD (or better) with 150 ohm resistors to anodes. I've already ordered mine. The switch itself is cake to take apart. It's how I figured out the pins and that 5.mm are too big
I hope this helps a few people.
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Old 01-30-2005, 03:12 PM   #2
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Re: Factory fog lamp switch with non factory fog lamps.

excellent..Excellent EXCELLENT!

I am currently going to be replacing my air dam with a Wingswest with fog lamps and now I can get them wired up.
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Old 01-30-2005, 06:51 PM   #3
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Re: Factory fog lamp switch with non factory fog lamps.

I should also mention that the switch runs about 23.00 at the dealer.
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Old 01-30-2005, 07:08 PM   #4
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Re: Factory fog lamp switch with non factory fog lamps.

Wiring schematic?
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Old 01-30-2005, 09:07 PM   #5
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Re: Factory fog lamp switch with non factory fog lamps.

No drawings, but the wiring sequences are above
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Old 01-30-2005, 09:35 PM   #6
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Re: Factory fog lamp switch with non factory fog lamps.

Can you post more on the relay setup, some people would like to upgrade to foglamps and this woul dbe a great guide on how to do it.
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Old 01-30-2005, 09:51 PM   #7
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I made a crude scematic of what he is talking about

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Old 01-30-2005, 11:33 PM   #8
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Re: Factory fog lamp switch with non factory fog lamps.

rlith,

Correct me if I'm wrong...I'm guessing that pin 2 is the output of the switch and pin 5 is an input for a "lights on" indicator led. That's why they are tied together. I wasn't sure so I didn't put it in the schematic.
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Old 01-30-2005, 11:45 PM   #9
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Re: Factory fog lamp switch with non factory fog lamps.

I just would like to see where the connection are made to the relay.

Is it a separate relay?
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Old 01-13-2006, 10:27 PM   #10
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Re: Factory fog lamp switch with non factory fog lamps.

Have you gotten the info to update the schematic? I ask in case it gets looked at in the FAQ section.
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Old 01-14-2006, 04:37 AM   #11
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Re: Factory fog lamp switch with non factory fog lamps.

blazze, rlith, thank you so much, gettin ready to hook up the fog lights in the truck, now i dont need to use that ugly ass thing that you had lol
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Old 10-05-2009, 01:00 PM   #12
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Re: Factory fog lamp switch with non factory fog lamps.

OK I want to do this on my 2001 Jimmy. I got the new switch & my truck has the connector allready attached to the harnes.







I am currently using a switch with 3 connectors(ground, lights, & power to the switch). How do I connect it? It doesn't matter to me if the lights turn off or stay on with the high beams. Any help would be greatly appreciated!

thanks!

Steve
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Old 10-05-2009, 02:44 PM   #13
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Re: Factory fog lamp switch with non factory fog lamps.

Quote:
Originally Posted by snorander View Post
OK I want to do this on my 2001 Jimmy. I got the new switch & my truck has the connector allready attached to the harnes.







I am currently using a switch with 3 connectors(ground, lights, & power to the switch). How do I connect it? It doesn't matter to me if the lights turn off or stay on with the high beams. Any help would be greatly appreciated!

thanks!

Steve
I guess I would like the easiest way to hook it up, I have an orange, purple, brown, & black wire on the connector. I am guessing that orange should be power, brown is the dash lights, black is the ground, but I have no idea what purple is.

So do I run power to the orange wire, splice the brown to another dash light wire, splice the balck wire to a ground and run the purple to my fog lights?

-Steve
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Old 10-12-2009, 02:58 PM   #14
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Anyone help?? :(

OK I want to do this on my 2001 Jimmy. I got the new switch & my truck has the connector allready attached to the harnes. It has a gray wire (power from the head lights), A black wire(Ground), A purple wire (amber light that lights up when the light is on), & and an orange wire(which I assume is power out to the lights). I tried splicing my lights onto the orange wire, but that did not work. My truck allready has the relay (labled foglps) in the fuse block under the hood. Anyone know how I can make this switch work? With the headlights on I put my test light on the orange or the purple wire I get nothing. I tried holding the button down & testing, but again I get nothing. when I turn the headlights on I get power on the gray wire and the white on the front of the switch(dash lights) lights up, but other than that I get nothing. I'm stumped, any help would be greatly appreciated!
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Old 05-26-2012, 10:19 AM   #15
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Re: Factory fog lamp switch with non factory fog lamps.

Just ran across this and it should be super useful when I wire up my new fogs; wondered if rlith or blazee still had any of those photos/schematics as the original links seem to be dead now.
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