ACDelco PCM Engine Computer 12589463 – Programmed To Your VIN – 2005-2006 Avalanche

If your 2005 or 2006 Avalanche is acting up—running rough, throwing codes, or just not starting—this might be the fix.

It’s an ACDelco remanufactured PCM, part number 12589463, and here’s the kicker: it comes programmed to your VIN.

So it’s literally plug-and-play.

No trips to the dealer, no expensive programming tools.

Just swap it out and go.

It’s been tested and refurbished, so you know it’s solid.

Instructions included, and it comes with a manufacturer warranty.

Mounts up front in the engine bay.

Made in the USA.

The seller notes it’s fully functional and ready to install.

If your ECM is toast, this is the direct replacement you’ve been looking for.

Easy installation, ACDelco quality, and pre-programmed to match your truck.