Description
2012 Chevrolet Silverado 4.8L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Chevrolet Silverado 4.8L 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
John Bell –
I was really impressed with how straightforward this ECU swap was. The unit came pre-programmed to my truck’s VIN, which saved me a ton of time and hassle. Installation was nearly effortless, and the truck fired up immediately without any hiccups. Plus, the shipping was quicker than I expected, so I was back on the road in no time.
This ECM fit perfectly in my 2012 Silverado with the 4.8L engine and worked flawlessly right out of the box. Having it VIN programmed beforehand made a huge difference—it eliminated the usual reprogramming headaches. The seller also provided solid support when I had a brief question, which made the whole process stress-free. Definitely a great buy for anyone needing a reliable replacement.
I bought this ECM for my Chevy Silverado and was pleasantly surprised by how plug-and-play it truly was. Since it came pre-programmed with my truck’s VIN, I didn’t have to mess with any complicated setups or visits to the dealer. The part arrived
Oliver James –
The ECM arrived quickly and dropped right in without a hitch—my Silverado runs smoother than ever. Absolutely hassle-free and worth every penny!