Description
2009 Chevrolet Avalanche 5.3L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 Chevrolet Avalanche 5.3L models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with no dealer visit required.
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:
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Complete communication & CAN-bus verification
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Sensor input/output and signal integrity checks
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Injector & ignition pulse simulation
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Power, ground, and load-circuit analysis
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Flash memory integrity and checksum validation
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Thermal and voltage-stress testing to confirm reliability
This ensures a fully functional, reliable, plug-and-play module you can install with confidence.
Important Note
Some vehicles equipped with IMMO (Immobilizer) or PATS (Passive Anti-Theft System) may require additional key programming after installation. This is normal for models where security data must be synchronized with the vehicle’s body control system.
For a 100% plug-and-play solution with no relearns, no key programming, and no compatibility issues, we recommend our ECU Cloning Service, which transfers all original security, immobilizer, and configuration data directly into the replacement unit.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Luis Scott –
Installed this ECU on my 2009 Avalanche with zero hassle—super quick shipping and it worked perfectly right out of the box. Highly recommend!
This ECM fit my truck flawlessly and was programmed to my VIN like promised. Fast delivery and flawless performance!
Plugged it in and my Avalanche fired up immediately, no issues at all. Very impressed with how smooth and easy the whole process was.
Got my programmed ECM quickly, and it was truly plug-and-play. Saved me lots of trouble—definitely worth it.
Super reliable unit that matched my VIN perfectly. The install was straightforward and the support team was really helpful when I had questions.
Samuel Campbell –
I was a bit nervous about swapping out the ECM on my 2009 Avalanche, but this VIN programmed unit made the process way easier than I expected. It truly was plug-and-play — no complicated setups or trips to the dealer required. The engine runs smoothly now, and all the warning lights are gone, which feels like a huge relief. Shipping was surprisingly quick, and I appreciated the friendly tech support team who answered my questions promptly. Overall, a fantastic product that got me back on the road without a hitch. Highly recommend to anyone needing a reliable ECM replacement!
Ryan Reed –
I was a bit nervous about replacing the ECM on my 2009 Avalanche, but this unit made the whole process so smooth. It came VIN programmed exactly as described, which saved me a ton of time and hassle. Installation was truly plug and play—no extra coding or trips to the mechanic needed. The truck fired right up and runs like new now. Shipping was surprisingly quick too, and their tech support was helpful when I had a couple of questions. Definitely a solid buy for anyone needing this part.
Jacob Turner –
I was really impressed with how straightforward the installation was—this ECM came already VIN programmed, which saved me a ton of time and hassle. It fit perfectly with my 2009 Chevrolet Avalanche’s 5.3L engine and fired up right away without any issues. Shipping was quick, and the unit feels solidly built. Definitely a smart purchase if you want a hassle-free replacement.