Description
2012 Chevrolet Silverado 1500 4.3L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Chevrolet Silverado 1500 4.3L AT gas models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with our cloning service.
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:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS may require key programming after installation. This is normal.
For a 100% plug-and-play solution with no relearns, your original ECU must be sent in for cloning. We transfer all security data to the replacement unit.
👉Add the cloning service as a bundle at checkout — $300 CAD / $215 USD
A prepaid shipping label will be emailed to you.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Jason Torres –
This ECM fit my Silverado perfectly and arrived super quick—installation was a breeze! Highly recommend for anyone needing a reliable, plug-and-play solution.
Matthew Parker –
Got this ECM for my 2012 Silverado and it was exactly as described. The unit came programmed to my VIN, which made installation a breeze—literally plug and play with no extra setup needed. Shipping was quick, and I appreciated how the tech support team answered my questions promptly. Since the swap, the truck runs smoother and I’m very happy with the purchase.