Fog lamp wiring harness
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Fog lamp wiring harness - 9/25/2007 9:58:26 AM
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cain_45
Posts: 54
Joined: 9/24/2007
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Ok here's a good one for all the forum. I have a 2003 Blazer that didn't come with fog lamps. I've since purchased the OEM style foglamps with the turn signals integrated all in one. I've also got the switch for the dash inside the vehicle. I'm told that I need a wiring harness that goes from the foglamps to the "master" wiring harness. Anyone know if this is true and if so, know where I can get the harness? From GM the harness retails for well over $500!!
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RE: Fog lamp wiring harness - 9/25/2007 12:27:42 PM
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cain_45
Posts: 54
Joined: 9/24/2007
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Huh??
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RE: Fog lamp wiring harness - 9/25/2007 12:29:21 PM
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cain_45
Posts: 54
Joined: 9/24/2007
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More specifically I need the wiring harness that goes from the foglamps to the wiring harness under the hood. The dash control harness was already there...surprise. So I just need the harness from the foglamps to the harness that goes underhood.
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RE: Fog lamp wiring harness - 9/25/2007 1:01:43 PM
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cain_45
Posts: 54
Joined: 9/24/2007
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Just an FYI for everyone. The part # for the harness I need is 12159160 and it lists for $592 from GM.
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RE: Fog lamp wiring harness - 9/25/2007 1:49:29 PM
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swartlkk
Posts: 14308
Joined: 5/1/2005
From: Waterloo, NY
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I think what JP is trying to say is that you could look at the pin outs and get the appropriate connector for the fog light & switch, then add the extra wiring yourself... For that matter, you could add the appropriate wiring for the factory fog light and forget about the integration into the BCM for control. Have the fogs be independant which they aren't from the factory. Just hook the switch up to a +12v ignition switched source and have the ability to have your fogs on whenever you like instead of only with the low beams and/or park lights on.
_____________________________
Kyle-
2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto
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RE: Fog lamp wiring harness - 9/25/2007 2:54:08 PM
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RCars2
Posts: 896
Joined: 4/22/2007
From: Wisconsin originally but now im in Phx, AZ
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Ya know this made me think of something when i had my grille off when doing my body lift. I actually found 2 connectors, one on either side of the air dam that funnels air to the radiator behind the grille, and i wondered if those might be the ones that go to the factory fog lights (though mine didnt come with them factory that im aware of). If i get a chance ill take some pictures to show what i mean but i know on mine the plug and wires that go to the fog lamp switch do exist behind my headlamp switch so i wanting to know if indeed that is the correct plug, any idea what the voltage is? Im probably gonna run relay off it so i can power my lights on my brush guard and get a factory foglight switch but i want to make sure I'm not wasting cash on it before i dive in.
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-Rob
"what fell off of where!?!?!"
Repair List:
Fender Rubbing Issue
Fuel Pump
Alignment
T-Case <--Fixed Finally
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RE: Fog lamp wiring harness - 9/25/2007 3:50:46 PM
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cain_45
Posts: 54
Joined: 9/24/2007
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The switch itself plugged right in so I'm not concerned with it. What I am concerned about is the harness that runs from the fog lamps to the underhood harness. The underhood harness is the one that runs all around the engine etc. This harness plugs into the fog light harness WHICH I don't have. This is the one I'm looking for. Rcars2 if you get a pic I would very much appreciate it.
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RE: Fog lamp wiring harness - 9/25/2007 6:26:48 PM
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lennyblazer
Posts: 1985
Joined: 5/6/2007
From: Appleton, WI / Houghton, MI
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Yeah I have the plug at the back of my headlight control panel, I was looking for the fog light plugs on the other end so now i know where to look for them at and then ill just wire up the switch I have to the harness. If I find the plugs behind the grille I will snap some pics too.
Also I agree with the statements above. You should find the plugs behind the grille like I am looking for and then be able to wire up a switch inside the cab, the spare wiring for the switch should be connected to the headlight panel.
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-Lenny
4.3L Auto. 3.73Gears
http://www.cardomain.com/ride/2358267
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RE: Fog lamp wiring harness - 9/25/2007 6:34:20 PM
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cain_45
Posts: 54
Joined: 9/24/2007
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The switch inside the cab is already installed. I'm only concerned with the harness for the fog lights themselves on the outside of the vehicle.
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RE: Fog lamp wiring harness - 9/25/2007 6:56:43 PM
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swartlkk
Posts: 14308
Joined: 5/1/2005
From: Waterloo, NY
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So what you are looking for is some aux harness that would have the fog wiring in it... The fog wiring is part of the main engine harness, you either have the plugs, or you don't. If you don't, your options are to wire it all up yourself or get the appropriate harness, either by purchasing a new one or getting one from a salvage yard. The harness in question will run from the headlighths to the underhood fuse box, but there may also be differences in the harness from the fuse box to the bulkhead, but I doubt it. Do you see terminals in the locations for the fog relay and fuse?
Here is the wiring schematic for the fogs. Looks like connectors C1 & C4 have wiring in them for the fogs so these harnesses would be affected.
_____________________________
Kyle-
2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto
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RE: Fog lamp wiring harness - 9/26/2007 7:46:41 AM
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cain_45
Posts: 54
Joined: 9/24/2007
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Exactly!! This is the harness I'm speaking about. The part # for the harness I need is 12159160 and it lists for $592 from GM.
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RE: Fog lamp wiring harness - 9/26/2007 8:11:10 AM
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swartlkk
Posts: 14308
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From: Waterloo, NY
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So what exactly are you asking?
What has been suggested is you either run the wires yourself or get the appropriate harness... If these do not work for you, what is the solution you are looking for?
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Kyle-
2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto
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RE: Fog lamp wiring harness - 9/26/2007 9:01:36 AM
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cain_45
Posts: 54
Joined: 9/24/2007
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I'm asking whether this is true or not? See first post above. I'm checking to see if anyone else has ever attempted this or not. I don't want to run wires myself, I want it to be and look factory. I just can't believe that no one has ever done this or attempted this before.
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RE: Fog lamp wiring harness - 9/26/2007 10:23:45 AM
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swartlkk
Posts: 14308
Joined: 5/1/2005
From: Waterloo, NY
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Many, many people have added auxilliary fog lights. I don't know of anyone here that has attempted what you are trying simply because the stock fog lights in the headlamp housing are poor at best. That is why so many decide to put on aftermarket fogs.
If you do not have the wiring up at the headlights, then your choices are as I have already stated. It is possible that GM did away with the extra, unused wiring as a cost cutting effort and that earlier years have it, but yours doesn't. If that is the case, then the MUCH more cost effective route would be to run your own wires, but since you'd rather mess with the harness, the junkyard is the only other place if you do not want to pay retail for it (GMPartsDirect.com has it for $350 or so).
Good luck with it... You could make your own wiring look like factory if you take your time, but what do I know...
_____________________________
Kyle-
2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto
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RE: Fog lamp wiring harness - 9/26/2007 11:49:58 AM
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cain_45
Posts: 54
Joined: 9/24/2007
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Yea I don't mind the wiring at the lamps being done aftermarket as I don't know how to wire. The dash control is there and plugged in already so it's no problem. GMpartsdirect has the harness yes for $350 but charges an additional 75 to ship.
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RE: Fog lamp wiring harness - 10/5/2007 8:19:19 AM
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cain_45
Posts: 54
Joined: 9/24/2007
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Just an FYI to everyone that I found the OEM GM harness for sale on Ebay today for $50 bucks! I pounced and in a few days will have that factory OEM foglamps installed on my Blazer....nicknamed "Blazey". LOL
I want to thank everyone who offered advice to me. It's very much appreciated.
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RE: Fog lamp wiring harness - 10/11/2007 4:38:43 PM
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cain_45
Posts: 54
Joined: 9/24/2007
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Ok new problem....got the harness installed but the fogs do not work. All other lamps, I.E. headlamps, turnlamps, sidemarkers etc., work as intended but no fogs. Now I was reading my manual and it states the switch inside the cabin should illuminate when the fogs are turned on. Mine doesn't do this so I'm wondering if the switch is bad? Does anyone who has factory installed fog lamps know if the switch has an indicator that illuminates once the fogs are turned on?
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RE: Fog lamp wiring harness - 10/11/2007 5:04:53 PM
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otnietdehoooo
The Chop Shop Moderator
Posts: 1611
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From: Ft. Worth, TX
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when you press the button for the fogs to come on, the little white circle on the switch will light up orange.
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Matt - 98 4DR 4WD
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