Description
2009 GMC Sierra 5.3L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 GMC Sierra 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
David Miller –
Arrived quickly and worked perfectly right out of the box—exactly what I needed for my 2009 Sierra. Highly recommend!
The VIN programming saved me a ton of hassle; installation was seamless and the truck runs like new again.
Super straightforward setup with zero glitches, plus tech support was helpful when I had a quick question.
Plug-and-play is no joke with this ECM—had my GMC firing on all cylinders in no time.
Great quality, fast delivery, and true hassle-free install. This ECM was exactly what my Sierra needed!
Cameron King –
The ECM arrived quickly and was exactly what I needed for my 2009 GMC Sierra 5.3L. Installation was straightforward thanks to the unit being VIN programmed and truly plug-and-play—no extra tuning required. It fired right up, and the truck runs perfectly smooth now. Great quality and excellent service throughout the process.