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Always on USB Power?

MrMagloo
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redwngr Senior Enthusiast

redwngr

Posted
Posted

Interesting.

My 21 has 12 v power ports. (and the 120V shared 400W outlets)

2023 owners manual shows 12v power ports.

 

I have a '23 being shipped.  I'm curious to see if it has 12v port(s).

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repairman54 Enthusiast

repairman54

Posted
Posted (edited)
13 hours ago, redwngr said:

Interesting.

My 21 has 12 v power ports. (and the 120V shared 400W outlets)

2023 owners manual shows 12v power ports.

 

I have a '23 being shipped.  I'm curious to see if it has 12v port(s).

No standard round 12v ports in my '23 LTZ Z71 crew. Just USB in dash and console. 120v in console and bed. Has technology package. Running my V1 off the Savvy adapter in the OBD port.

Edited by repairman54
redwngr Senior Enthusiast

redwngr

Posted
Posted (edited)

Decided to see if there was any info about this in the fleet order guide.

 

It shows the 12V outlet is only installed/available on low trims.

 

On sierra

image.thumb.png.60f0c79bb09c80087fd0ca9f4c7bbc72.png

 

First column is the 'pro' trim.

 

On Silverado it comes on the WT, Custom and Custom Trailboss

image.thumb.png.191d38d3218c9fbf93b5b3d2b8a244aa.png

 

 

 

So it would be in the Owners Manuals -- and not be on the high trim trucks mentioned in other posts. 

Perhaps also explains the OM section discussing fuse location changes -- and the lack of available connection on higher trims that will not have the 12v pot.

 

 

Guess I'm won't be running the 12v cooler with the new truck when it arrives  🙁

Edited by redwngr
MrMagloo Enthusiast

MrMagloo

Posted
  • Author
Posted
On 5/29/2023 at 12:07 PM, redwngr said:

Decided to see if there was any info about this in the fleet order guide.

 

It shows the 12V outlet is only installed/available on low trims.

 

On sierra

image.thumb.png.60f0c79bb09c80087fd0ca9f4c7bbc72.png

 

First column is the 'pro' trim.

 

On Silverado it comes on the WT, Custom and Custom Trailboss

image.thumb.png.191d38d3218c9fbf93b5b3d2b8a244aa.png

 

 

 

So it would be in the Owners Manuals -- and not be on the high trim trucks mentioned in other posts. 

Perhaps also explains the OM section discussing fuse location changes -- and the lack of available connection on higher trims that will not have the 12v pot.

 

 

Guess I'm won't be running the 12v cooler with the new truck when it arrives  🙁

 

Yes, I was pretty shocked on my ride home and realized I had no 12v port. Bizarre.  At least there is a 120v outlet that perhaps can be used for the cooler?

 

 

gemarsh Senior Enthusiast

gemarsh

Posted
Posted (edited)
16 hours ago, MrMagloo said:

 

Yes, I was pretty shocked on my ride home and realized I had no 12v port. Bizarre.  At least there is a 120v outlet that perhaps can be used for the cooler?

 

 

He could, if'n his cooler only pulls a tad over 3 amps. That 120v receptacle is about as worthless as t!ts on a boar.

Edited by gemarsh
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  • 1 month later...
jashaw Enthusiast

jashaw

Posted
Posted

I assume nobody has found a constant power source on from the passenger side box?

 

I would like to install some extra footwear lighting on my dad's 2023 LT silverado. Using the X1 BCM connector's pin #1 12v as a trigger for the relay, and power the lights via the F28. Avoiding running a wire from the battery.

 

I put my meter lead down the empty fuse hole to the circuit board, while the truck was off, and was able to see 18v on the meter.

 

The F28 socket on the circuit board DOES get power constantly.... but the prong to plug something in to it is not present.

repairman54 Enthusiast

repairman54

Posted
Posted

Trim down a 1/4'' male spade terminal to fit the hot side in the box and an inline fuse to protect the circuit at the box.

jashaw Enthusiast

jashaw

Posted
Posted (edited)

It would need to be soldered to the board. Not feeling that too much. I might have tried it if it were my truck.

Edited by jashaw
  • 4 weeks later...
Jay dog New Member

Jay dog

Posted
Posted

This sucks, I can't get my 2023 silverado to charge my phone when the truck is off....now I wish I kept my 2022....no way I can tell to make the 2023 charge when it's off...damn gm...always gotta screw ****** up.

MrMagloo Enthusiast

MrMagloo

Posted
  • Author
Posted
19 hours ago, Jay dog said:

This sucks, I can't get my 2023 silverado to charge my phone when the truck is off....now I wish I kept my 2022....no way I can tell to make the 2023 charge when it's off...damn gm...always gotta screw ****** up.

 

I ended up mounting an auxiliary 5v port with full time power.  Works great.  But yes, it's extremely frustrating they took away the 12v outlet, and the ability to select full time power with the F27/28 fuse.  Dumb move.

  • 6 months later...
DTByouknowme New Member

DTByouknowme

Posted
Posted

Looking at this post(kinda old). I'm in the same boat. I want power full time to an USB port or something. Every other Chevy I've owned has had that. I have a 23 custom refresh. And they certainly got rid of that extra prong on f28. This suck cause you could have fulltime power to your socket and you could tap into that extra prong with a spade connector to power add on accessories with switched power. It was perfect cause it was set up for 50 amps. Also, my 23 does have a 12v cig lighter jack.

  • 4 months later...
Mayo Enthusiast

Mayo

Posted
Posted (edited)

Has anyone tried jumping the circuit on the K2 relay?  ie putting a jumper wire across the normally open circuit .

Edited by Mayo
  • 2 weeks later...
Mayo Enthusiast

Mayo

Posted
Posted

So I tried jumping K2 port 30-87. With the key off I had power to fuse 27, but no power to usb outlet. 

I am thinking it is going to be a software fix.

20240716_104609.jpg

20240716_111317.jpg

redwngr Senior Enthusiast

redwngr

Posted
Posted

The F27 / F28 thing is so you have a choice -- RAP or continuous

 

If you want the power to supplied as RAP use the default -- F27

If you want to switch it to continuous power -- pull the block and put it back so it uses F28. 

 

F27 and F28 power the same places, so if F28 is powered, the RAP function cannot shut those locations off.

 

 

  • 4 weeks later...
BM68 New Member

BM68

Posted
Posted
On 7/16/2024 at 7:34 PM, redwngr said:

The F27 / F28 thing is so you have a choice -- RAP or continuous

 

If you want the power to supplied as RAP use the default -- F27

If you want to switch it to continuous power -- pull the block and put it back so it uses F28. 

 

F27 and F28 power the same places, so if F28 is powered, the RAP function cannot shut those locations off.

 

 

Im having the same issue.

Why cant I just add a prong with constant power to where it's missing on my 2023? Shouldn't doing that send constant power to all USBs all the time?

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