Description
2009 GMC Sierra 4.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 GMC Sierra 4.3L models.
Each unit is VIN-programmed, updated, and fully tested.Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
This is not a brand-new unit. It is a rebuilt unit that is inspected, refreshed, and fully tested before shipping.
Testing includes communication, CAN-bus, sensor signal, power circuit, flash memory, and reliability checks.
Important Note
If your vehicle does not have an IMMO or PATS system, this unit will be directly plug&play.
If your vehicle has an IMMO or PATS system, it will require a key relearn after installation. You can visit your local locksmith for help.
We also offer a full cloning service. We transfer all security data to the replacement unit, so it will be a plug&play installation.
For all European cars, Hyundai, and Kia vehicles, we recommend adding our cloning service as a bundle.
For American and Japanese cars, we recommend doing a key relearn on-site.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Isaac Miller –
I bought the 12639669 ECM for my 2009 GMC Sierra and was really impressed by how quickly it arrived with free shipping included. The unit came VIN programmed and was truly plug-and-play, which saved me a lot of hassle. I had a couple of questions before ordering, and their team responded promptly and clearly. Installation was straightforward, and my truck has been running smoothly ever since.
Eric Marshall –
The unit arrived quickly and was truly plug-and-play, saving me a ton compared to dealer prices. Installation was a breeze and the customer support was spot on.
Aaron Evans –
The VIN programming was spot on, and the plug-and-play setup saved me a lot of hassle. Shipping was quick and reasonably priced too!
Ian Carter –
I was really impressed with how quickly this ECM arrived, and the free shipping was a nice bonus. The unit came VIN programmed and ready to install, which saved me a ton of hassle. After swapping it into my 2009 GMC Sierra, everything fired up perfectly without any issues. The team was great about keeping me in the loop during the entire process, so I knew exactly when to expect my part. Overall, a smooth and professional experience from start to finish.
Mark Wallace –
I ordered the 2009 GMC Sierra 4.3L ECM, and I was really impressed with how smooth the whole process went. The unit arrived quickly with free shipping, which was a nice surprise. They had my VIN programmed professionally before shipment, so it was basically plug-and-play once I got it installed. I had a couple of questions along the way, and their support team responded promptly, making the entire experience stress-free. My truck runs like new again, and I couldn’t be happier with the quality and service.