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Anyone get the 9L7 Upfitter AUX switches

Brian Romanowski
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William Sherman Enthusiast

William Sherman

Posted
Posted
56 minutes ago, AdamAT4 said:

Mine only has 4 wires, but there's 5 switches

I like how it gives you the snow prep 200A fuse, ill probably use that if I add a winch4183b36c90c3d4cec038d2e8b0a94e53.jpg1d65b035de59cd38357660173e4953d0.jpg

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The fifth wire (relay and switch 5) is in the gray plug and heads up to the third brake light to power a roof beacon. 

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Craftism
Craftism

For those struggling, I've compiled a Google Doc with all the kits, part numbers and my install process.   https://docs.google.com/document/d/1cudKHwiVgJA549Vl_Dyt6bqa1RRblfEMvxkkEm8c9-s/edi

David Withrow
David Withrow

Installed mine today. Hooked up air compressor for air bags.   

Brian Romanowski
Brian Romanowski

I contacted GM upfitter support and got this response a couple months ago:       ImageAndParts.pdf ImageAndParts (1).pdf ImageAndParts (2).pdf

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AdamAT4 Enthusiast

AdamAT4

Posted
Posted
The fifth wire (relay and switch 5) is in the gray plug and heads up to the third brake light to power a roof beacon. 
Ok, ill probably cut it out as ill probably never have a beacon but that is convenient if you have a roll bar with lights

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William Sherman Enthusiast

William Sherman

Posted
Posted
11 hours ago, AdamAT4 said:

Ok, ill probably cut it out as ill probably never have a beacon but that is convenient if you have a roll bar with lights

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That is my plan as well if I ever need the 5th switch or a 30amp circuit. 
It should be at pin #8 in the gray plug, GN/BU wire. 
UI Bulletin #153 has a wire schematic with color coding for each switch/relay. 

2k19Sierra Enthusiast

2k19Sierra

Posted
Posted
2 hours ago, AdamAT4 said:

Got mine all done, it was a lot of work but a very clean factory install. Now I need to get some lights. 66290fe0e40d583f1861e92fd62018cd.jpg

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Cool looks good!  What you thinking for lights? And what’s up with the trim colour around that panel? Something custom you did?

AdamAT4 Enthusiast

AdamAT4

Posted
Posted
Cool looks good!  What you thinking for lights? And what’s up with the trim colour around that panel? Something custom you did?

Ditch lights on AUX 1, once I get a trim pc for lower bumper ill put a bar there on AUX 2.

 

3 and 4 are currently undecided but AUX 5 will be flush mount flood lights in the rear bumper for night time toy loading/ reverse/ anti tail gater lights

 

Trim is wrapped by a wrap company, high quality 3m air release rusted copper metallic. Expensive but looks soo good. Getting the door handles wrapped soon.

 

Also waiting on my hydro dipper to get a matching carbon to do the radio bezel.

 

 

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cstmg8 Enthusiast

cstmg8

Posted
Posted
Ditch lights on AUX 1, once I get a trim pc for lower bumper ill put a bar there on AUX 2.  
3 and 4 are currently undecided but AUX 5 will be flush mount flood lights in the rear bumper for night time toy loading/ reverse/ anti tail gater lights
 
Trim is wrapped by a wrap company, high quality 3m air release rusted copper metallic. Expensive but looks soo good. Getting the door handles wrapped soon.
 
Also waiting on my hydro dipper to get a matching carbon to do the radio bezel.
 
 
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Nice work. Spotted that Wera screwdriver in your pic. I have that set, a straight through set, and carry an insulated shaft set for work.
Good choice of tools!

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AdamAT4 Enthusiast

AdamAT4

Posted
Posted
Nice work. Spotted that Wera screwdriver in your pic. I have that set, a straight through set, and carry an insulated shaft set for work.
Good choice of tools!

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I have all wera screwdrivers including torx and hex, pliers are knipex at home and klein at work. I have nearly every Milwaukee power tool as well and really like them. For ratchets I really like the gearwrench 120XP, snap on feel for far less and my wrenches are Jet.

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Johnson087 New Member

Johnson087

Posted
Posted

Hi all, 

 

Just picked up a 2020 GMC 3500HD with the upfitter from the dealer. I spent a few hours yesterday installing everything for the auxiliary switches. My question is, where do I connect my wires for the auxiliary switches to control my LED lights for the service body? I can't seem to find anything, unless I'm just overlooking it. I appreciate your help, 

chris84 Enthusiast

chris84

Posted
Posted
13 hours ago, Johnson087 said:

Hi all, 

 

Just picked up a 2020 GMC 3500HD with the upfitter from the dealer. I spent a few hours yesterday installing everything for the auxiliary switches. My question is, where do I connect my wires for the auxiliary switches to control my LED lights for the service body? I can't seem to find anything, unless I'm just overlooking it. I appreciate your help, 

 

I just picked up my harness for under the dash from the dealer today, but it looked like there was four stubbed wires coming off that. 

20200901_192226.jpg

AdamAT4 Enthusiast

AdamAT4

Posted
Posted
 
I just picked up my harness for under the dash from the dealer today, but it looked like there was four stubbed wires coming off that. 
20200901_192226.thumb.jpg.9c9ede2407add73e0ea44353f954df6f.jpg
Yep those are the power wires for your accessories

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  • 2 weeks later...
jmandish Enthusiast

jmandish

Posted
Posted (edited)

Does anyone that has this option installed at the factory willing to share their VIN number?  Chevrolet Parts has no knowledge of this animal and says it's not something I can order.  If I have a VIN# that has this installed, they said they may be able to help me.  Likewise, if you can share part numbers that are valid that would be great too.  The dealer is unable to find anything using the service bulletin in this thread.  Thanks!

Edited by jmandish
AdamAT4 Enthusiast

AdamAT4

Posted
Posted
Does anyone that has this option installed at the factory willing to share their VIN number?  Chevrolet Parts has no knowledge of this animal and says it's not something I can order.  If I have a VIN# that has this installed, they said they may be able to help me.  Likewise, if you can share part numbers that are valid that would be great too.  The dealer is unable to find anything using the service bulletin in this thread.  Thanks!
PM me

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Dresari702 Enthusiast

Dresari702

Posted
Posted

Hi Guys.   Really liking this thread.   But I'm curious:  Has anyone tried to retrofit the 9L7 switch panel onto a K2 Silverado/Sierra (2014-2018)?     I doubt it would be a perfect drop-in installation.  But could it be made so it's functional?

 

I have a 2018 Silverado Z71, with the AUX switch panel already installed below the Infotainment center.   I'm adding some LED pods....so I'll need a place for switches that I'd be happy with.   Right now, "plan A" is to mount rocker switches in the roof console like I've seen some people do.   But the Upfitter switch panel from a 2020 Silverado/Sierra would also look good....if I could do it.

 

Seems like the the 9L7 requires the switch panel, wiring harness, fuse block, and a relay block that comes with the harness (?).   I saw the GM p/n's earlier for these items.   If I could make the switch panel fit in the knee bolster like they do with the 2020 models....I could probably find mounting locations for the rest.   The only issue I can see is that if the 9L7 option comes with any plugs that connect to any existing plugs on the truck.....I doubt mine would be the right type since I have an older model.

 

Any ideas?!?   I'm no slouch when it comes to wiring.....so if I bought the components I could probably make it work.  I'm just wondering if anyone has done something similar.

 

Thanks!!

Transient Senior Enthusiast

Transient

Posted
Posted

This is something I've been considering for various things, such as an air compressor install, offroad lights under the truck, etc. Subscribed so I can follow along.

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