Description
2012 Chevrolet Silverado 6.6L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Chevrolet Silverado 6.6L 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
Mark Cox –
Arrived quickly and worked perfectly right out of the box—couldn’t ask for a smoother install. Definitely a reliable fix for my Silverado!
Eric Scott –
I was a bit nervous about replacing the ECM on my 2012 Silverado, but this unit arrived ready to go and was exactly what I needed. The fact that it came VIN programmed saved me a ton of time and hassle—just plugged it in and my truck fired right up without any issues. Shipping was surprisingly quick, and when I did have a couple questions, the support team was patient and really knowledgeable. It’s been a few weeks now, and the truck is running smoother than ever. Definitely a solid buy for anyone needing a reliable replacement.
Jose Johnson –
This ECM for my 2012 Silverado was exactly what I needed. It came pre-programmed to my VIN, so installation was straightforward with no headaches. The unit fit perfectly and the truck has been running smoother than before. Shipping was quick, and I appreciated the helpful customer support when I had a couple of questions.