Any module out there yet to turn the FOG LIGHTS auto-on with the headlights?

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InTruckDesign

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You are correct on the 01-02 tahoes that is all that was needed..03 is when they switched to multi-plex wiring.
 

02Lightning

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Ok, got it guys thanks! I just had to figure out what side of the relay that the triggered ground was on and it works great. Only thing that I noticed is that the light on the dash doesn't come on but I really don't care about that.
 

InTruckDesign

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Okay here are the pics...I went out and found my diode and plugged it in to take some pics...as '02Lightning has said the light on the dash does not come on when triggered by the lows, still comes on when the switch is used.

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---------- Post added at 07:35 PM ---------- Previous post was at 07:34 PM ----------

Oh and the stripe side of the diode goes towards the fog relay.
 

InTruckDesign

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That is exactly why one should test with a meter,testlight, probe..ect.. prior to installing IIRC there are differences between '07 and the '08-'09's...My tahoe is an early build '07...built in May of 2006.
 

yatch07

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Hey intruckdesing does this mod also leaves your fog lights on when you put the high beam lights on if the do on what terminals do I connect the diode to on the relay I have a 07 suburban
 

InTruckDesign

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Yes it leaves the fogs on when you switch to high beams...look at the pics posted above...your '07 burb should be the same.
 

yatch07

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Thanks also what size diode did you use
 
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Delta_Chevy

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Will this work with a Yukon also?? I want my fogs to stay on with my highs!!
 

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