Description
2009 GMC Envoy 5.3L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 GMC Envoy 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
Scott Baker –
I was a bit nervous about swapping out the ECM on my 2009 GMC Envoy, but this unit made the process surprisingly smooth. It arrived quickly and was already programmed to my VIN, so I didn’t have to worry about any complicated setup. Installation was straightforward—just unplug the old module and plug this one in. My SUV fired right up with no hiccups, and it’s been running better than ever since. Definitely saved me a trip to the dealership and a lot of downtime. Highly recommend if you want a hassle-free replacement.
Connor Morgan –
Installed it in no time and my Envoy runs perfectly—exactly what I needed. Shipping was quick, and it worked right out of the box.
Cooper Bailey –
I was impressed with how quickly this ECM arrived and how smoothly it installed—everything fit perfectly with no extra programming needed. My 2009 GMC Envoy started right up, and all the engine functions are running flawlessly. The VIN programming matched exactly, which saved me a ton of hassle. Definitely a hassle-free purchase that got my truck back on the road fast.