Wiring diagrams

Pinkmist · Apr 20, 2021

Does anyone have access to wiring diagrams for the 2021 Silverado 2500HD LTZ?

Specifically I'm looking for the wiring diagram for the door locks system. Most importantly the color code for the unlock and lock signals. I'm looking for the driver's door lock.

Thanks,

jhplak325 · Apr 21, 2021

GM upfitter website has wiring diagrams.

Home - GM Upfitter

www.gmupfitter.com

Ron Nielson · Apr 21, 2021

attached, from the source mentioned previously

Pinkmist · Apr 22, 2021

Thanks a bunch, Ron! I think that will likely work for my needs.

So is GM Upfitter a better choice than GMSi for detailed and specific info, like service and repair manual data? How about repair procedures.com?

Ron Nielson · Apr 22, 2021

GMUpfitter is not nearly as complete, but it's free. They often have what is needed but if not, you could go to GMSi

redwngr · Apr 22, 2021

GM Upfitter docs serve a different purpose that the service info program.

You can browse the site (and/or download info) to see if it serves your purpose.

Wiring diagrams

Home - GM Upfitter

Attachments

Our Vendors

Top Contributors this Month

Recommended Communities