yep i have been pouring over the 2010 wiring diagram book
and the micro relay in line after the high beam relay has a logic function
to cause
power or ground to be removed when high beam relay is activated to switch on the high beam bulbs
it also maintains ground for the high beams but dumps ground for the fogs
tomorrow i will go take a pic of the 2013 book page and see what changed,
before i develop a work around to the micro logic relay module, I think it may be simpler to interrupt the signal between the high beam relay and the micro logic relay module
i have the HID lamps so I am sure there are a few more widgets to review
i love the words (non-servicable) in reference to the micro module relay set up
looking to do it without a pizza box switching set up
amazing the guys/gals that sit around and engineer these puppies,

i want to find a complete work around to accomplish two things
fogs on when engine is running and truck in gear, or parking brake off, which is easier to wire up, (drls) and two, the fogs stay on with bright lights selected
i had the fogs as drls on all my superduites, the 02 was easy because the head lamp switch had an odd one year ramp, then they changed it so it got a bit more difficult,,but workable

 

Let me know if you find out any better solution.....i ended up giong the route of the "pizza box" solution...BUt wired up the diodes correctly. I noticed you said that th fogs ground is interupted when the highs are on...im assuming this is interuppted closer to the relays..since at the fog plug there is always a constant ground no matter what..and its only the (B+) that is switching

 

Can anyone explain the point of this mod?

 

I can only speak for me...BUT I have HID fog lights that i retrofitted. I dont want them turning off everytime i put on the fog lights b/c one its not good for the ballasts or the bulbs...also the retro fit i did uses bi-xenon projectors...so on my fogs when the highs go on the fog lights project higher too

but i believe ppl with stock fogs dont like having the light "drop" out right in front of the truck when using their highs

 

For you, it makes sense... for others, i don't really get it lol.

 

Adding a relay for the fogs is the easiest mod you could possibly do lol

 

I'm just placing my fogs on a seperate switch, with the trigger source tied into switched power so they'll knock off once the truck is shut off anyways, giving me total control over the fogs, without the worry of forgetting to turn them off when I shut off the truck.

I'll be doing Hi/Low fogs as well (Hopefully anyways), so it's just a matter of connecting the fog solenoid to the headlight solenoid (In my case anyways, as I'll be doing retro'd headlights as well)

 

Yeah, that is the easy way out an aftermarket switch i can do...i was trying to keep from adding another switch..i already have 3...one for the lights behind the grill, one for the rear entertainment screens, and one for the LED's in the vents and underseats and center console.

 

biggest reason for me is we live in a rural rural area
lots of piglets and hoglets plus a few rouge deer
use high beams 99% at night and the fogs light up that ever important 30 or so feet right out front and to the sides very well

every split second of warning gives you that much chance of not damaging the front grill, or yourself as they leap through the windshield

i have set of nice 35 watt eye ball lights i may just set up as drls and hide them behind the eb boost bar but aim them out to the sides more than regular

the diagram book today was mysteriously absent......

i also try to make everything not driver dependent so if my wife or someone is driving, the system takes care of whats needed

 

I did this to my 2010 platinum when I got it and posted it here somewhere. I haven't had time to do the mod to my 13 yet but I have got the parts sitting in the garage. I am a bit nervous to tap into the hot wire for the high beams as I am not that familiar with the hid lights on the 13's. When I have time to get to this project I will do another write up if no one has done it yet.