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AUX switch install

smcgillis10

By smcgillis10
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Lethal69GTO Enthusiast

Lethal69GTO

Posted
Posted (edited)

Follow-up to my previous post.  TinkeringFox has identified the terminals on Page 15 of this thread.  I added some additional info.

 

  • S48A-X2 (18-cavity connector) - AUX 1 through 4 button press trigger (signal)
    • Cavity: 10-13 (10=AUX4, 11=AUX3, 12=AUX2, 13=AUX1)
    • Mouser P/N: 306-SHCM-A03T-P025
      • JST Automotive, FEMALE 1.5MM, 22-20AWG
    • - OR-
    • Mouser P/N: 306-SHCM-A04T-P025
      • JST Automotive, FEMALE 1.5MM, 24AWG
  • S48A-X1 (6-cavity connector)
    • Mouser P/N: 571-5-962885-1 (see drawing in previous post)
      • TE Connectivity, FEMALE, 24-22AWG
  • X61A-X1 & -X5 - Relay Trigger (signal) Wire (for use on small male spades)
    • X5 Cavity: 10=AUX1, 11=AUX3, 17=AUX2, 23=AUX4
    • X1 Cavity: 21=AUX1, 30=AUX3, 34=AUX2, 38=AUX4
    • Mouser P/N: 272-7116410002
      • YAZAKI, FEMALE 1.5mm, 20AWG
  • X50A-X3 & -X4 - Upfitter Relay Trigger (signal) Wire (for use on small male spades)
    • X3 Cavity: M5=AUX1, F3=AUX2
    • X4 Cavity: L6=AUX3, L1=AUX4
    • Mouser P/N: 272-7116410002
      • YAZAKI, FEMALE 1.5mm, 20AWG
  • X50A-X3 & X4 - Upfitter Relay Output Voltage (for use on medium male spades)
    • X3 Cavity: M7=AUX1
    • X4 Cavity: G2=AUX2, K5=AUX3, K2=AUX4
    • Mouser P/N: 272-7116411202
      • YAZAKI, FEMALE 2.8mm, 14AWG

 

NOTE: User CAPTADAMJ posted excellent "how to" on page 22 of this thread.

 

Be sure to review Upfitter Bulletin 110N (or newer) RPO 9L7 (LINKY HERE) pages 6 through 8 detailing the proper configuration of fuses in an X50A Under-hood Electrical Center (UEC) fitted to handle the usage of these switches.

 

-Darryl

Edited by Lethal69GTO
Added X61A-X1 & X5 and additional data.
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Sffsks11
Sffsks11

So if everybody is wondering on how to install these auxiliary switches (GM Oem P# 23145158) without the GM upfitter diagram. I purchased the Bussmann 15303 - 5 it is a weather tight fused and relay b

tha_lildude
tha_lildude

I have just successfully fully integrated my AUX switches OEM style. My fuse block did not come with the relays or fuses, nor did it have connectors for them. I had to purchase a few new things.

AZelkhunter
AZelkhunter

Here are some pictures of the modified buttons. I had to remove all the black and white, then respray the white because you couldn't see the icon in the daylight. I am pretty happy with the way they

Posted Images

Jdb1944 Enthusiast

Jdb1944

Posted
Posted
On 3/25/2023 at 5:17 PM, Lethal69GTO said:

 

Absolutely frustrating for sure.  I am going through this thread yet one more time.  Digikey does have the information you seek, it is not so obvious to acquire as can be on Mouser Electronics.  I had to select the 'EDA Models' hyperlink "5-928999-5 by SnapEDA" which brought me to SnapEDA web site.  On it, I selected 'See Datasheet PDF" on the left side.

 

I went to Mouser and searched using the same part number, 5-928999-5.  LINKY HERE.  Below is the datasheet.

 

 

ENG_CD_929454_C26-2426561.pdf 459.77 kB · 1 download

Thank you. That's the best data yet. So I performed a test yesterday using just 16 ga wire in the connector body to see if I could get the light relay to work as I already the auxillary upfitter switch. No luck. The aux switch LEDs would light indicating they switches were on but relay for light bar would work. Other threads and YouTube vids stated these switches close to ground and that's how I wired the relay to switch the ground. I checked switch to ground function with a multi meter and it did indicate ground most of the time. Sometimes when grounded woul lose  LED indicator function on switches. I'm fed up with trying to get the upfitter switch to work so sending back. Unfortunately can't send back the 13575783 GM wires. 

jonathanspw Enthusiast

jonathanspw

Posted
Posted (edited)

I grabbed a new switch panel (TC, cargo light, aux 1-4) and thanks to the wonderful posts from @TinkeringFox, @Lethal69GTO, and @tha_lildude I've successfully wired it into my factory x50a block.

 

I got partially lucky and even though I didn't have the wires already run to the x48a block, I DID for whatever reason already have an x50a block with the proper terminals so all I had to do was run from x48a to x50a.

 

Now here's my question: what the heck is the part number for the factory relay?  It doesn't look like any other relays in the box that will fit the locations for the factory upfitter relays are 30A relays...but I'm also not finding much info on them spec-wise.  From my understanding these are 30 amp circuits right so I need a 30A or higher relay?

 

Any help would be greatly appreciated.  I was eyeing maybe the GM 9815 "HI PWR" relay but the only docs I can find on that seem to cite 10A but that's probably not even reliable since it's just on an Amazon listing.

Edited by jonathanspw
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Lethal69GTO Enthusiast

Lethal69GTO

Posted
Posted
2 hours ago, jonathanspw said:

Welp I think I found it.

 

According to https://static.nhtsa.gov/odi/tsbs/2015/SB-10089968-2280.pdf   (GM service bulletin 15411) it is the 9815 "HI PWR" relay and they are indeed 30A circuits, so I guess that relay can support 30A.

 

@jonathanspw Great job!  Congrats on completing the upgrade.  Great info find on the fuses as well.

 

Bypassing X61A is the route I will be taking as well with the thought of using a multi-conductor cable from Automation Direct rather than running individual wires through the firewall.  Still noodling that.

 

The swapping out my factory DPN mirrors with after market mirrors having same features plus power folding and puddle lamp completed today so the Upfitter switches is next on the list.

jonathanspw Enthusiast

jonathanspw

Posted
Posted
7 hours ago, Lethal69GTO said:

 

@jonathanspw Great job!  Congrats on completing the upgrade.  Great info find on the fuses as well.

 

Bypassing X61A is the route I will be taking as well with the thought of using a multi-conductor cable from Automation Direct rather than running individual wires through the firewall.  Still noodling that.

 

I used https://www.amazon.com/dp/B07TLB9VYX which worked well and fit the connectors perfectly.

 

For the outputs/load wires from X50a I actually managed to fit 12ga wire on the connectors which makes me feel a bit better should I ever have full 30A loads on them.

 

I didn't have too much trouble getting through the factory firewall boot (once I found the dang thing on the inside).  If you unmount the x61a then the boot is literally directly behind it with the main harness going through.

 

Relays and fuses come in today so I can test all the way through to my outputs.  So far I've only tested that with fuses/relays in place that the relays actually trigger from the switches (just pulled small fuse/relay from elsewhere for the sake of testing this).

  • Like 1
Lethal69GTO Enthusiast

Lethal69GTO

Posted
Posted
1 hour ago, jonathanspw said:

I used https://www.amazon.com/dp/B07TLB9VYX which worked well and fit the connectors perfectly.

 

Yup.  Petty much what I purchased except outer jacket is not so thick.  Appreciate the recommendation.

 

1 hour ago, jonathanspw said:

For the outputs/load wires from X50a I actually managed to fit 12ga wire on the connectors which makes me feel a bit better should I ever have full 30A loads on them.

 

Also a consideration I had just for the same reason.  Good to know you successfully squeezed a 12AWG into it.

 

1 hour ago, jonathanspw said:

If you unmount the x61a then the boot is literally directly behind it with the main harness going through

 

Yup, thank you.  I am familiar with it as it is where I passed my mobile HAM transceiver power circuit through.  Forward thinking, when I pulled that power circuit through a small gauge wire was also pulled with it and left inserted through the pass-through.  When I pull the four conductor cable for the Upfitter signal circuits using it I think will also leave a pull-wire, never know if it will be needed down the road.

 

1 hour ago, jonathanspw said:

Relays and fuses come in today so I can test all the way through to my outputs. 

 

Awesome.  Hope all goes well.

 

jonathanspw Enthusiast

jonathanspw

Posted
Posted
12 hours ago, Lethal69GTO said:

Awesome.  Hope all goes well.

 

All went well!  All 4 circuits are live and working on their respective switches!  Also got my dash cam hard wired into RPO power in the driver's side fuse panel.  Successful day I'd say!

Lethal69GTO Enthusiast

Lethal69GTO

Posted
Posted
12 hours ago, jonathanspw said:

All went well!  All 4 circuits are live and working on their respective switches!  Also got my dash cam hard wired into RPO power in the driver's side fuse panel.  Successful day I'd say!

 

Congratulations!  Definitely a successful endeavor.

 

Lethal69GTO Enthusiast

Lethal69GTO

Posted
Posted

For those who are following footsteps of @jonathanspw, I looked up the parts on GM Parts Giant specified in previous post with the PDF attachment for RPO 9L7.  Parts can be sourced elsewhere, verify, use information at own risk.

  • Relay (4 required, choose one of the following):
    • 19116057, Relay Assembly, High Power, Multi-use, Gray, 12V, 35A, 4-Pin (GM PN 19116057)
    • 13500114, Relay Assembly, High Power, Multi-use, Gray, 12V, 4-Pin (GM PN 13500114)
      Replaces: 12088567, 12135170, 12193606, 15328866, 15393412, 19115080, 19116057
  • Fuses:

 

NOTE: Simply adding these fuses and relays does NOT automatically infer the Upfitter AUX 1 through 4 switches will function.  As documented throughout this thread, the vehicle must also have the underlying wiring in place - at a minimum between S48A X1 and X50A X3 and X4.  Factory wiring also uses X61A X5 and X1.

 

As documented in PDF attachment in previous post and the Upfitter Integration Bulletin 110N, the placement of the fuses in X50A controls the powering (battery or ignition) of the AUX switches, improper placement could damage the vehicle's wiring.  Research and verify.

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  • 4 months later...
Larry Huffstutler Enthusiast

Larry Huffstutler

Posted
Posted (edited)

My 2015 Silverado WT had the harness from S48A to X61A but was not connected to X50A. I installed a 6 relay fuse/relay box outside the firewall just above the Upfitter passthrough boot and tied the wires into X61A, X1. I wired the relays for ground trigger. The Upfitter switch I got has TC, Cargo Light, CNG, and 4 AUX switches. I used the CNG switch for my air bag compressor by using an ESP32 to make the CNG relay latching. The CNG switch uses the exhaust brake pin in S48A, X2. I am pulling power from X61A, X7. So here's my problem, if I tie into Battery Positive Voltage (15 amp) everything works fine, but if I use Accessory Voltage (10 amp) or Run/Crank Ignition 1 Voltage (15 amp) nothing works and the indicator lights show 3 of the aux switches on. All are switched off. These lights come on when a door is opened as well. Again everything works as it should with it tied to Battery Positive Voltage at X61A, X7.

Any thoughts?

 image.thumb.png.292d52a2fbf2adae0a29e503bb24d788.png

 

Okay, I found a blown fuse which fixed part of the problem. I still have the indicators coming on on aux1, 3, and 4 but not aux2. This happens when I open the door and goes off when I turn on the ignition. From what I see in the wiring diagram why are they not all on?

 

Edited by Larry Huffstutler
addition
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  • 1 year later...
someguy1313 Enthusiast

someguy1313

Posted
Posted

about to embark on a similar journey...  want multiple aux switches in my 2017 Sierra 2500 WT.  

Interesting the incredible amount of work found in this thread.

 

Curious if anyone has tackled this and developed a plug play setup or is willing to build one? 

 

I'm low tech but mechanic savvy (not electrical) and i'm open to the idea of paying the smarter of the group to build out a plug/play harness.  (i realize there's info missing here, but it's just a query and to keep this amazing knowledge thread alive)

Grumpy Tooch Enthusiast

Grumpy Tooch

Posted
Posted
On 8/24/2023 at 5:15 PM, Larry Huffstutler said:

My 2015 Silverado WT had the harness from S48A to X61A but was not connected to X50A. I installed a 6 relay fuse/relay box outside the firewall just above the Upfitter passthrough boot and tied the wires into X61A, X1. I wired the relays for ground trigger. The Upfitter switch I got has TC, Cargo Light, CNG, and 4 AUX switches. I used the CNG switch for my air bag compressor by using an ESP32 to make the CNG relay latching. The CNG switch uses the exhaust brake pin in S48A, X2. I am pulling power from X61A, X7. So here's my problem, if I tie into Battery Positive Voltage (15 amp) everything works fine, but if I use Accessory Voltage (10 amp) or Run/Crank Ignition 1 Voltage (15 amp) nothing works and the indicator lights show 3 of the aux switches on. All are switched off. These lights come on when a door is opened as well. Again everything works as it should with it tied to Battery Positive Voltage at X61A, X7.

Any thoughts?

 image.thumb.png.292d52a2fbf2adae0a29e503bb24d788.png

 

Okay, I found a blown fuse which fixed part of the problem. I still have the indicators coming on on aux1, 3, and 4 but not aux2. This happens when I open the door and goes off when I turn on the ignition. From what I see in the wiring diagram why are they not all on?

 

You should read the beginning of the thread a little further.  What i did was only use the trigger wires from the AUX switches, and run them to latching relays.  One for each ON/OFF(2 per fixture) and the indicator light I just tied into the latching ON.  

C_Hag183 Enthusiast

C_Hag183

Posted
Posted

Must have replied to wrong post I was asking what plug and play harness were they looking for 

I’ve completed my install already 

but thanks for the directions

 

cheers!

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