Description
2009 GMC Sierra 6.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 GMC Sierra 6.6L models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with our cloning service.
Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
Every ECU is inspected, refreshed, and verified through advanced diagnostic tools. Testing includes:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS require key programming after installation. This is normal.
For a 100% plug-and-play solution, we recommend using our full cloning service. We transfer all security data to the replacement unit.
A prepaid shipping label will be emailed to you. Allow you to mail in your original computer to us for full cloning.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Trevor Little –
I had a great experience ordering the 2009 GMC Sierra 6.6L ECM from this seller. The unit arrived quickly and was already VIN programmed, which saved me a lot of hassle. I was impressed with how smooth the plug-and-play setup was—just installed it and the truck fired right up without any issues. The shipping cost was very reasonable, and I appreciated that it arrived well-packaged and on time. Overall, this made a stressful repair much easier than I expected. Highly recommend if you need a reliable replacement ECM.
Noah Anderson –
I had an issue with my 2009 GMC Sierra’s ECM and found this ECM replacement online. The unit arrived faster than I expected, and the free shipping was a nice bonus. What really stood out was the professional VIN programming service they included—it made installation straightforward with no guesswork. Their team responded quickly when I had questions about the process, which helped me feel confident throughout. After swapping the ECM, my truck runs better than it has in years. Highly recommend this product and service for anyone in need of a reliable ECM.
Owen Smith –
Got my 2009 GMC Sierra ECM quickly with free shipping, and it was ready to plug-and-play right out of the box. Excellent service and super fast turnaround!
Paul Scott –
I ordered the 2009 GMC Sierra 6.6L ECM from this seller and was really impressed with how smoothly everything went. Their professional VIN programming service made installation a breeze—just plug and play with no hassle. Shipping was quick and affordable, and they kept me informed throughout the whole process. The unit works perfectly, and my truck runs better than ever.