dome light circuit

[steve338]

Does anyone know which wire supplies the dome light circuit on a 2022 AT4X. GM has again neglected to put any floor lighting on these upscale trucks so I have to add my own.

[Rob Mugs]

If "I" were to do it, I'd go with this general idea.  Page 13 has the pinout to the BCM

 

EDIT: I can't tell if these are "always on" or on when the doors are open.  It says to verify functionality by opening the door with the light sensor covered but then says they're on while driving.

Might need a different pin?  I'd still go to the BCM myself though

 

Denali illumimated door sills.pdf

Edited December 13, 2022 by Rob Mugs

[steve338]

On my 2017 Sierra and 2020 AT4 it was a grey wire on the white connector that was switched with the dome lights. My 2022 AT4X doesn't have a white connector but it does have a grey connector with 2 grey wires. I can unplug that connector and the dome lights still work so its probably not that one. I'll keep digging.

[64BAwagon]

I just tapped the gray wire at the connector below the lower glove box. 

[Aubie_01]

On 12/26/2022 at 4:53 PM, 64BAwagon said:

I just tapped the gray wire at the connector below the lower glove box. 

 

Was this on a ‘22 or ‘23 refresh truck?

 

Thanks

[64BAwagon]

9 hours ago, Aubie_01 said:

 

Was this on a ‘22 or ‘23 refresh truck?

 

Thanks

a 2021 3500HD crew cab LT