Foglights On With High Beams

OUSux · September 1, 2017

In case anyone is interested. I was able to do this exact same mod on my 2017 Colorado. I followed the same process as @Spurshot to find the pins and what not. ANd then just used a diode, just like the one he used, to jump between the fogs relay and the high beam relay. The result is the same. Fogs on with High Beams!

The only difference being that the pin numbers on the brown connector in the Colorado are slightly different. Otherwise it's shot for shot.

Link to the thread I made on coloradofans.com/forums

http://coloradofans.com/forums/201-2nd-gen-electronics-audio-lighting/338097-fogs-w-high-beams-mod.html

Thanks for the inspiration @Spurshot

Is this the easiest way to have my fogs on when my highs are on in my 2015 Yukon?

Ravenkeeper · September 2, 2017

Is this the easiest way to have my fogs on when my highs are on in my 2015 Yukon?

Pretty easy, only took me about 5 minutes, once I had the diode and confirmed which pins I was connecting to. Now, my wife's CR-V and daughter's Cruze, they aren't going to be so easy.

Ravenkeeper · September 2, 2017

On my 2015 Yukon, what do I need to do to have my fogs stay on with my highs? I clicked some links in this thread but they are dead.

All you will need is a 1N4004 diode ($0.98 @ Radio Shack, if there's one near you), needlenose pliers (maybe), and (I used) a small common jeweler's screwdriver. Also, you are going to need a diagram of your Yukon's BCM (not sure if Yukon is the same as Silverado/Sierra), so you know which pins to jumper.

Ravenkeeper · September 2, 2017

Does this work the same as fog lights always on when low beams?

You can jumper that too with the same diode.

OUSux · September 2, 2017

Any of yall in Texas I could pay to bring mine to you and do this for me lol?

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caskey_b · September 5, 2017

just curious... .has anyone bought fog light pigtails (5202 pigtails in my case with a 2014 Silverado) and tapped them into an hot fuse with ignition on to use the fog as DRL? then they would be on whenever the truck is on no matter hi or lo beam....

I am currently doing this to mine... i have the 5202 Opt7 LED bulbs in the fogs and will run the wiring this week.... (oh.. and I removed the spring in my headlight switch so i can run without my low beams as DRL, since I have HIDs installed)

bdsilverado · September 15, 2017

Hopefully the direct power from ignition works to. I had success in my 14 with this mod but I've been jamming the little pin in and it's not working for me on the 17

Ravenkeeper · September 15, 2017

Hopefully the direct power from ignition works to. I had success in my 14 with this mod but I've been jamming the little pin in and it's not working for me on the 17

I took one of my smaller phillips jewelers screwdrivers to make a path for the diodes, or even one of the small common-tip jewelers to help manipulate the diode's way into place.

My diode mods, from picture above. 1N4004 diode mods (strip toward second pin/wire):

GRY1 to GRY8 - Puddle lights on with all interior lights

BRN26 to PNK26 - Cargo lights on with Reverse (reverse the diode for R lights on with Cargo)

BRN18 to BRN22 - Fogs on with High Beams (Silverado's Lows stay on with Highs)

There are others for Park/Low on all the time, Fogs on with Lows, Fogs always on, etc. Believe the entire list is in "$50 and under modifications" thread, could also be in this thread somewhere.

Edited September 15, 2017 by Ravenkeeper

jimbofoxman · September 18, 2017

My diode mods, from picture above. 1N4004 diode mods (strip toward second pin/wire):
GRY1 to GRY8 - Puddle lights on with all interior lights

BRN26 to PNK26 - Cargo lights on with Reverse (reverse the diode for R lights on with Cargo)

BRN18 to BRN22 - Fogs on with High Beams (Silverado's Lows stay on with Highs)

There are others for Park/Low on all the time, Fogs on with Lows, Fogs always on, etc. Believe the entire list is in "$50 and under modifications" thread, could also be in this thread somewhere.

I must not be doing something right..........can't seem to get the cargo lights on with the reverse lights.

Ravenkeeper · September 18, 2017

I must not be doing something right..........can't seem to get the cargo lights on with the reverse lights.

I had the same problem. Yanked the diode, cooled off for a couple days, and tried again. Make sure that the stripe end is toward PNK26, and a good amount of lead is stuffed down in the hole. I used a fine tip jewelers screwdriver to help make room for the leads.

jimbofoxman · September 18, 2017

I had the same problem. Yanked the diode, cooled off for a couple days, and tried again. Make sure that the stripe end is toward PNK26, and a good amount of lead is stuffed down in the hole. I used a fine tip jewelers screwdriver to help make room for the leads.

Nothing really to hold it in place on PNK26 since their is no wire in there. I'll have to try it again someday.

Ravenkeeper · September 19, 2017

Nothing really to hold it in place on PNK26 since their is no wire in there. I'll have to try it again someday.

You may be looking at PNK27. All of the connectors on the BCM are numbered the same. PNK26 has a brown wire in it.

Black has 26.

Brown has 26.

Pink has 27. With #27 empty.

Grey has 26.

jimbofoxman · September 19, 2017

You may be looking at PNK27. All of the connectors on the BCM are numbered the same. PNK26 has a brown wire in it.

Black has 26.

Brown has 26.

Pink has 27. With #27 empty.

Grey has 26.

Ah, I'll have to check tonight. I didn't realize their was 27 in pink. Thanks! Silly me!