AUX switch install

[WesternMike]

On my WT2(fleet) I have both the x1 and x2 harness. When I put the new AUX switches in, the X2 harness has nothing to plug into.

 

Still very confused to how this has to be done, don’t understand why my truck has a harness back there that’s not even being used.

 

Any help with my WT2 trim will be appreciated.

 

I’m looking to use all the aux for 3 led bars then a on board air system for 4th switch.

[TinkeringFox]

I assume your truck has a gas motor?

if so then the X2 plug doesn’t need to be used. 

I’m guessing you got the upfitter switch with TC,Cargo, Aux 1-4?

does your X1 harness have any wires coming from pins 10-13?

[WesternMike]

2014 Silverado 1500 WT2 5.3 Gas

 

Got the TC, Cargo, Aux 1, Aux 2, Aux 3, Aux 4

 

Pins 10-13 are occupied on the X1; All Blue/ Green wires.

 

 

 

 

[TinkeringFox]

@csjumper2003

 

The TC & Cargo wires stay where they are.

on the plug for the X2 connector you would cut the wire for pin number 4 to run to your air horn relay. You don’t necessarily have to cut the wire from #4 meaning you can just strip back some of the insulation and attach another wire to it. This wire (X2 #4) is the signal wire from the CNG switch. This plug that is there at the X2 connector is not doing anything in your application. It should have 6 wires in it and they aren’t doing anything so yo can use them (at least the one going to X2 #4) without worry. 

The link I provided is for a wire with a terminated lead meaning it’s a wire about 1.5 feet long with the terminal needed for the X1 connector factory crimped on the end of it. (Pigtails) (order 4 of them)

you can open up your X1 plug and insert these wires directly into cavities 10,11,12,13 and then close the plug back up. Your X1 plug will then plug back in to the X1 opening with 4 new wires coming out (from Aux 1-4). These are your constant on/off negative signals from Aux 1-4.

Edited April 28, 2018 by TinkeringFox
Clarify who this is directed at

[TinkeringFox]

On 4/28/2018 at 8:30 AM, WesternMike said:

2014 Silverado 1500 WT2 5.3 Gas

 

Got the TC, Cargo, Aux 1, Aux 2, Aux 3, Aux 4

 

Pins 10-13 are occupied on the X1; All Blue/ Green wires.

 

 

 

 

Ok, this is good! Pins 10-13 are already wired so you’re in luck. These wires go to the X61A junction block behind your brake pedal on the firewall. They plug into the X61A-X5 connector (on the lower right) and come out the (X61A-X1 connector (firewall side behind X5) from there they go up to the under hood fuse box (X51A).

Edited August 1, 2018 by TinkeringFox
Wrong number (X62A-X61A)

[TinkeringFox]

@WesternMike

can you snap a picture of your underhood fuse box, specifically where Upfitter relays 1-4 would plug in. (#60,61,62,65) I want to see if the pins are present for the relays. ( if it’s just a blank cavity or if there’s a metal pin inside to contact a relay)

[TinkeringFox]

Sorry, just read you only have TC, Cargo, Aux1-4

On the same page now

Edited April 28, 2018 by TinkeringFox
Irrelevant

[TinkeringFox]

The OEM wire routing would go from the S48A (switch panel) to the X61A, X4connector(Junction box behind brake pedal) then out of the X61A, X1 connector, and into the X50A, X3 & X4 connectors (under hood fuse box) your accessory power or output from the relays will come out of the X50A (fused) and back into the X61A, X1 connector and out of the X61A, X7 connector. 

 

These pictures show the routing in and out of the X61A junction block behind the brake pedal.

 

 

Please note: in Gm Upfitter there is a discrepancy between 2015 and 2016 model years pertaining to where the wires from the S48A (switch) land at the X61A (junction box). They land in either Connector (X4 or X5). Simply verify by checking the location and color of neighboring wires to be sure you’re on the right connector. 

This may be due to a type-o or different wiring on different model years. .......still sorting that out. 

 

 

 

 

 

Edited May 2, 2018 by TinkeringFox
Said X61A x4, meant X5

[TinkeringFox]

Here are some more showing the X61A, connector X7

 

 

 

 

 

Edited April 28, 2018 by TinkeringFox

[TinkeringFox]

Here are the part numbers for the terminals for the S48A switch panel connectors X1 & X2. This will save some cash.?

 

 

Edited April 28, 2018 by TinkeringFox
Wrong Text on pic 1

[TinkeringFox]

These are the terminals needed for the X50A connections

[Csjumper2003]

These are the terminals needed for the X50A connections

With all these part numbers, which is the one for the x1 harness (the bigger one attached to the switches)?


Sent from my iPhone using Tapatalk

[TinkeringFox]

This one....

[Seapacer2]

Hello Everyone,

 

New to the site, I just sold my 08 and picked up a 2018 GMC 2500HD SLT, Diesel, 4WD.  I'm wanting to also add some lights up front.  I currently have 5 switches (Pedals / TC / Cargo Lamp / Park Assist / Exhaust Brake.

I should be able to add 2 aux switches, My Pedal Switch is a up/down switch and I believe all the others are on/off?  Could I just buy the 22838756 switch set and swap my current covers?

 

 

[Rafael Alonso]

I have a 2018 Silverado 2500HD WT 

I had from the factory the T/C and cargo lights only 

I purchased the one with  T/C, Cargo, CNG, Aux1, Aux2, Aux3, Aux4.

The CNG button since is a momentary i will use for the "Ocean Liner" Horn and the Aux I will use for LED bar and Fog lights 

I have an X2 connector with 5 wires but the factory cavity on the module did not have any terminals. 

Now the new module has 5 terminals. What is the connector for?