Description
2012 Chevrolet Impala 3.6L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Chevrolet Impala 3.6L 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
Adam Sanders –
I was a bit nervous about ordering an ECM for my 2012 Chevy Impala, but this one arrived quickly and was exactly what I needed. The fact that it came VIN programmed saved me a lot of hassle, and installation was truly seamless—just plugged it in and everything fired right up. The engine runs smoother now, and I didn’t even have to visit a dealer or shop. Their customer support was also really helpful when I called to confirm a few details beforehand. Overall, this was a solid purchase that got my car back on the road without any headaches.
After my Impala started having issues, I decided to replace the ECU myself, and this unit made that decision so much easier. It was shipped promptly and came fully programmed for my VIN, so I avoided the usual dealer waiting times. Hooking it up was straightforward, literally plug and play, and the car’s performance improved noticeably right away. I appreciated the quick responses from their tech team when I reached out with a
Oliver Phillips –
I was impressed with how quickly this ECM arrived and how perfectly it fit my 2012 Chevy Impala. The VIN programming was spot on, so I didn’t have to worry about any coding or extra steps. Installation was straightforward, literally plug and play, which saved me a lot of time and hassle. Overall, a solid purchase that got my car running smoothly again.
Noah Roberts –
This ECM arrived quickly and was already programmed to my VIN—installed in minutes with zero hassle. Highly recommend for anyone looking to get their Impala running smoothly again!