Description
2019 GMC Sierra 6.0L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2019 GMC Sierra 6.0L 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
Eric Morgan –
I was a bit nervous about replacing the ECM on my 2019 GMC Sierra, but this unit came fully programmed to my VIN, which made the install seamless. It truly was plug-and-play — no complicated steps or additional tuning required. The shipping was surprisingly quick, and I appreciated the professional support team who answered a couple of questions I had. Overall, it’s performing perfectly and has restored my truck’s smooth running.
Logan Roberts –
I had some concerns about replacing the ECM on my 2019 GMC Sierra, but this VIN programmed unit made the process surprisingly easy. The plug-and-play design meant I didn’t have to fuss with complicated programming myself. It fit perfectly and the truck started right up without any hiccups. Shipping was really quick, which was a big relief since I needed my truck back on the road ASAP. Overall, a hassle-free experience and a product that definitely lives up to the description. Highly recommend if you want a straightforward ECM swap.
Travis Perez –
This ECM came perfectly programmed and slipped right in—had my Sierra running smoothly again in no time! Super quick delivery and zero hassle.