Foglights On With High Beams

Crf450r420 · October 14, 2014

Do you have this electrical manual?

https://www.gmupfitter.com/files/media/photo/474/2014%20BBM%20Electrical%20section_10_18_2013_WIP.pdf

Yes, but if you look on there pin 21 for X5 should be empty, but I'm currently using the wire that is there to run the cargo lights when the reverse lights come on. I've tried using the 19 pin of X5, but it's not the color it says in that manual and it doesn't work with the horn.

SouthernSilveradoGuy85 · October 14, 2014

It's not a point of just having the fogs on when on bright, dim or parks. I wanted them on all the time and I also wanted them come on when I turn on the ignition and not have to turn them on every time I get in the truck. I'm using them as DRL's with LED bulbs. Would you like to have to turn your radio and a/c on every time you got in your truck? My point is those stay on until you turn them off yourself and that's my complaint with the fogs. With the fogs, every time you turn the ignition off and get back in the truck you have to turn them on again. They should stay on until you decide to turn them off. Just my opinion.

Problem is that you're talking about your personal preference. Not everybody will want the fogs on as DRLs. For me I would only want them as an added option with low beams or DRLs in case I wanted more like without turning on high beams, like foggy (of course) or raining hard. I thought about the mod, but so far I haven't needed fogs on at the same time as the high beams so I won't worry with it. Either way I would want the option to turn them off or on. I mean really it's just the push of one button so it's not a big deal for me.

SouthernSilveradoGuy85 · October 16, 2014

Maybe I missed it while looking through. Is there a way where the fogs don't automatically come on, but just gives me the option of turning them on with the high beams? If I have to I'll connect it so they come on with the highs, I just prefer to just have it as an option to let me turn them on with highs.

Spurshot · October 17, 2014

Steve,

My original mod of jumping the 10-18 circuits lets you turn the fogs on or off in any configuration of the headlights except they will come on with the high beams no matter what.

SouthernSilveradoGuy85 · October 17, 2014

Steve,

My original mod of jumping the 10-18 circuits lets you turn the fogs on or off in any configuration of the headlights except they will come on with the high beams no matter what.

Ok thanks, I'll do that tomorrow. I just like options where the fogs don't come on automatically and I can just turn it on or off with highs. I guess if I need highs then fogs with highs would be even better rather I want the fogs on or not so not a huge deal as I said before. I already did the cargo lights on with reverse earlier today.

Edited October 17, 2014 by SouthernSilveradoGuy85

Spurshot · October 17, 2014

If you tie in some high powered driving lights or a light bar to your fog lights, you won't need to run wire thru the firewall and add switches to your dash. Very clean way to go in my opinion. With that setup, you hit the highs and all the lights and light bars, etc come on, then shut off when dimming the highs. Very slick.

SouthernSilveradoGuy85 · October 17, 2014

I'm wondering now if there's a way to just cancel out whatever tells the fogs to turn off when you turn on the highs. If there's a way to do that then you'll be able to use them with highs like you do with lows, just turn on when you want them to without doing anything automatically.

Just a thought.

Spurshot · October 17, 2014

No way that I can figure out, using jumpers and diodes. It's in the BCM programming. But as I mentioned above, if you tie in some driving lights you want to go on and off with the high beams (thru a relay of course) it is a slick setup.

Mike1220 · October 17, 2014

No way that I can figure out, using jumpers and diodes. It's in the BCM programming. But as I mentioned above, if you tie in some driving lights you want to go on and off with the high beams (thru a relay of course) it is a slick setup.

No way that I can figure out, using jumpers and diodes. It's in the BCM programming. But as I mentioned above, if you tie in some driving lights you want to go on and off with the high beams (thru a relay of course) it is a slick setup.

But if you tie them to turn on that way, then you cannot turn your fogs on without turn on all the other lights (other than high beams), correct?

Spurshot · October 17, 2014

Mike

the fog switch would control whatever you have tie into the fog circuit. When the high beams are turned on, you'll get fogs and whatever else is tied to the fog circuit.

Mike1220 · October 17, 2014

That's what I figured. Just wanted to make certain. I am getting a 30" dedicated spot beam bar for behind my grille since I already have enough up close light. Looks like I will run it on a harness to a switch outside of the fogs.

Spurshot · October 17, 2014

What you might consider doing is running the light bar relay off the high beams, but put a switch between the high beam signal and the relay that drives the light bar. This way, the high beam switch will always kill the light bar when you dim headlights. But you can't activate the light bar without high beams. I can't imagine that would be a handicap. But the big plus of this arrangement is that one action of dimming the headlights kills the light bar. Very handy if oncoming traffic pops over a hill out on a lonely highway where you might be using the bar.

My setup has a set of wide flat driving lights tied to the fogs and the long-range spot driving lights tied to the high beams. I have the #10 circuit tied to the #18 wire in my BCM diode jumper mod. This way I can turn on the fogs with the OEM fog switch anytime, which also turns on the wide flat driving lights. To use the spot driving lights I turn on high beams. Turning on the high beams also gives me the fogs and my wide flat driving lights. All of the go out in a single motion of dimming the headlights.

Edited October 17, 2014 by spurshot

Mike1220 · October 18, 2014

What you might consider doing is running the light bar relay off the high beams, but put a switch between the high beam signal and the relay that drives the light bar. This way, the high beam switch will always kill the light bar when you dim headlights. But you can't activate the light bar without high beams. I can't imagine that would be a handicap. But the big plus of this arrangement is that one action of dimming the headlights kills the light bar. Very handy if oncoming traffic pops over a hill out on a lonely highway where you might be using the bar.

My setup has a set of wide flat driving lights tied to the fogs and the long-range spot driving lights tied to the high beams. I have the #10 circuit tied to the #18 wire in my BCM diode jumper mod. This way I can turn on the fogs with the OEM fog switch anytime, which also turns on the wide flat driving lights. To use the spot driving lights I turn on high beams. Turning on the high beams also gives me the fogs and my wide flat driving lights. All of the go out in a single motion of dimming the headlights.

How difficult would it be to do this set up? I wouldn't mind doing this. Although it is nice having a switch inside the cab where I can leave them on for a bit when the truck is off.

Spurshot · October 18, 2014

I tapped into the foglights, ran that to a relay and powered a set of wide driving lights. I tapped into the high beams, ran that to a relay and powered the spot lights. Then I followed this thread on jumping the 10 to the 18 circuit on the brown connector on the BCM. Just like the pictures. All you would be adding is a longer wire between the tapped signal from the fogs to the relay and putting a switch in there.

Mike1220 · October 18, 2014

I tapped into the foglights, ran that to a relay and powered a set of wide driving lights. I tapped into the high beams, ran that to a relay and powered the spot lights. Then I followed this thread on jumping the 10 to the 18 circuit on the brown connector on the BCM. Just like the pictures. All you would be adding is a longer wire between the tapped signal from the fogs to the relay and putting a switch in there.

Do I just tap into the highs at the fuse box if I want to hook up the bar to just the high beams.