Fog light switch is not wired correctly

99_Yukon · Sep 3, 2012

So I picked up a fog light switch from a member on here and installed it into my Yukon. I hooked up the wiring to the back of it an for fun just turned it on. Well it turned on my rear blower motor. So that's not what I wanted it for? How do I fix this and get some wires up to the front for fog lights like it should be?

SunlitComet · Sep 3, 2012

pic of wire harness used with colors?

99_Yukon · Sep 3, 2012

White, grey, red and blue.

I just plugged in what was there behind the dash.

SunlitComet · Sep 3, 2012

those colors don't correspond with the service manual. some anyway

brown, purple, gray, yellow, and black is what is shown for the fog switch.

will research those you posted tho.

99_Yukon · Sep 3, 2012

Thanks. I guess I'm more concerned about how to get the fog lights wired up correctly now. I wanted to add the limited style bumper with fogs and have it work like from the factory. Is this going to be possible?

SunlitComet · Sep 3, 2012

not find a hvac connector yet with all for colors you listed yet. only three and they indicate front control of rear blower. black instead of gray will keep looking.

---------- Post added at 08:44 PM ---------- Previous post was at 08:43 PM ----------

if not originally equipped the wire provisions will not be complete so you may need to add some wire routes. does the fog relay socket have all the terminals in place?

99_Yukon · Sep 3, 2012

SunlitComet said:
not find a hvac connector yet with all for colors you listed yet. only three and they indicate front control of rear blower. black instead of gray will keep looking.

---------- Post added at 08:44 PM ---------- Previous post was at 08:43 PM ----------

if not originally equipped the wire provisions will not be complete so you may need to add some wire routes. does the fog relay socket have all the terminals in place?

Where is the fog relay at? I dont mind running wire if thats what it takes.

SunlitComet · Sep 3, 2012

convenience center

99_Yukon · Sep 3, 2012

Which spot is for the fog light relay?

Monstar_est87 · Sep 3, 2012

Heres my fog light harness...

Fog light switch is not wired correctly

99_Yukon

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SunlitComet

OBS Jedi-Do Good

99_Yukon

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SunlitComet

OBS Jedi-Do Good

99_Yukon

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SunlitComet

OBS Jedi-Do Good

99_Yukon

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SunlitComet

OBS Jedi-Do Good

99_Yukon

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Monstar_est87

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