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Need "Multifunction Switch Instrument Panel" Diagram

colton_m

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beard_up Enthusiast

beard_up

Posted
Posted

Ok, so here ya go. A pic of how you could use your uplifter switches. I'll assume the blue highlighted wires do not exist. Also a couple of PDF's of about anything electrical on a 2014 Silverado.

 

Terminals required are listed in the 110e PDF

 

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

 

https://www.gmupfitter.com/files/media/photo/535/UI%20Bulletin_110e.pdf

Hey the PDFs won't open. Says invalid URL. But this was our original idea. I don't think the switch makes enough power to flip a relay.

 

 

Sent from my iPhone using Tapatalk

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tbarn Senior Enthusiast

tbarn

Posted
Posted

I opened the links on my home computer, work computer and Android phone. I am curious about the pic though. I tried to open it today and it took a long time then only loaded 1/2 the pic.Did you get the whole pic? I deleted it and reloaded it. If you look at the diagram without my additions, you will see that "flipping" a relay is what the circuit is supposed to do.

  • 1 month later...
PurpleGoat88 Enthusiast

PurpleGoat88

Posted
Posted

So as an Upfitter I get this. What you need is the switch panel and 4 of the pinned type I wires to make this work. But I'm concerned that there's no fuses or wiring in the fuse center so weather or not doing all this will even work is to be seen

  • 1 month later...
tsmomoney New Member

tsmomoney

Posted
Posted

Just curious if anybody found anything out? I finally got a part number (Never found this thread), and was gonna try it, but now that I see there's been issues, it makes me nervous.

  • 2 weeks later...
colton_m Enthusiast

colton_m

Posted
  • Author
Posted

So as an Upfitter I get this. What you need is the switch panel and 4 of the pinned type I wires to make this work. But I'm concerned that there's no fuses or wiring in the fuse center so weather or not doing all this will even work is to be seen

 

 

Just curious if anybody found anything out? I finally got a part number (Never found this thread), and was gonna try it, but now that I see there's been issues, it makes me nervous.

 

 

Any new news in getting this to work?

 

Hey guys, I've been busy, here's what I've done so far:

 

Only the work trucks with a certain RPO code come with the 4 extra relays in the fuse box to run the AUX switches in a plug-and-play fashion. We can't even add the relays ourselves because without that RPO code our trucks dont even have the terminals to plug the relays into. Just useless empty slots in the fuse box. That being said, it's not what I was originally trying to do anyways. I've got an LTZ with a bunch of options already controlled with switches, so replacing all my switches with the AUX switchbank isn't an option or I'd lose my pedal adjust, hill descent control, parking sensors etc.

 

I ordered the switch bank pictured below AND the AUX switch bank everyones been talking about. The AUX ones are back ordered, but when they show up I am going to take the plastic toggle that says AUX1 and AUX2 and put them in place of the Lane departure warning and the exhaust brake buttons below. After that, I have looked up what pins on the circuit board give a LDW and exhaust brake signal. I'm going to solder on there and control my own relays that will turn on my light bar and my backup lights.

 

I just havent done it yet because the AUX switch bank is out of stock apparently and I don't want to take my dash apart multiple times.

 

LDW and Exhaust Brake will become AUX1&2 - then some custom wiring:

 

switches_zps7cf77f0d.png

  • 2 months later...
  • 3 weeks later...
jakewake23 Enthusiast

jakewake23

Posted
Posted

This is slow going, but here's some progress:

 

finishedswitch_zpsecf87229.jpg

whats the status as of now? did one of the new switchboards come with a new circuit board or how are you going to get that to work?

  • 1 month later...
darkfox1 Senior Enthusiast

darkfox1

Posted
Posted

I just found out about these today. I've been trying to find a way to wire in a switch that pretty much uses the "old fashioned" method of wiring in accessories. (in my case, factory fog lights that do not go through the bcm, because my truck did not come with them.)

 

I only need a 12v accessory source and momentary NO switch to make mine work. Think these would be viable for that purpose? I was originally looking at the factory fog switch which is apparently 5v, not enough to pull my relay in, and I dont want to confuse my bcm with load changes. Most of this type of stuff in these trucks are low voltage and go through the BCM, which as others have said on this thread, pass through the fuse panel relays, so the power is never coming directly off of the switch, but more of a low voltage signal sent to the bcm as a logic circuit.

 

The lack of the proper RPO code for the upfitter wiring/relays makes sense in hindsight. I kept trying to figure out why my upfitter slots were empty under the hood, as I had assumed that any truck could be "upfitted." Nope.. not the case.

  • 3 weeks later...
Whatever64 Enthusiast

Whatever64

Posted
Posted

This is slow going, but here's some progress:

 

finishedswitch_zpsecf87229.jpg

 

Very interested. Can you provide part numbers and cost ?

Any updates ?

Does everything else work as it should.

 

Looks good.

darkfox1 Senior Enthusiast

darkfox1

Posted
Posted

I'm hoping not.

 

I've been sort of doing my own research on a separate but related project, trying to use the stock foglight switch without the bcm being directly involved.

 

I've concluded that it's a standard NO momentary switch, but according to the upfitter manuals it's a 5v switch and my wiring is polling on 12v.. and we're kind of afraid of pulling the 12v into the switch for 2 reasons. Mainly frying the bcm by inadvertently exposing 12v to a system looking for 12, and for frying a 5v switch with a 12v signal.

 

I would assume these switches are much the same. You have 2 harnesses on it, if you pull the panel off and do some continuity testing you'll probably find these are NO MO switches like the foglights. (Someone please correct me if I'm wrong here.) They're probably different in the sense that they have a toggle light on them, it could be however that there's a microprocessor on the board itself doing that flipflop and not the BCM. You'd have to supply the unit with voltage to test if that were the case.

 

Now I imagine these aren't 12v switches either.. which means intercepting part or all of the wires to the switches you want to use would only work for the voltage it's designed for, OR finding some way to convert it.

 

We've covered elsewhere in the thread that without the RPO code for upfitters you're gonna have lots of blank ports in your fuse panel for upfitter fuses and relays, and by blank I mean there's no terminals to connect a fuse or relay to, not just that there is no fuse or relay in them. So if you're gonna do anything "stock" you'd have to about rewire the whole truck. (you'd have to buy a new fuse box with the correct upfitter pinouts, as the fuse panel and the wire harnesses are 2 separate units. Some GM techs even told me the fuse panel itself has hard wired relays in it that cannot be replaced or accessed without cutting.)

 

If anyone else has anything I'd CERTAINLY like to hear what you've found. I can't find a place to put an aftermarket switch in my truck that wouldn't make my eye twitch every time I saw it, these would be perfect for a lot of guys with light bars etc. Heck it'd even be useful for a remote amp kill switch for audio folks. Lots of uses here.

  • 8 months later...
silveradosid Senior Enthusiast

silveradosid

Posted
Posted

i put this in my truck, and no the 4 aux switches are no momentary. they are an on off switch and are a grounding type. look at the diagram of the switch. there is already a ground in the factory harness so u dont have to add one. i used aux one to provide a ground to the relay of my led light bar

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