Description
2014 Chevrolet Silverado 4.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2014 Chevrolet Silverado 4.3L models.
Each unit is VIN-programmed, updated, and fully tested.Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
This is not a brand-new unit. It is a rebuilt unit that is inspected, refreshed, and fully tested before shipping.
Testing includes communication, CAN-bus, sensor signal, power circuit, flash memory, and reliability checks.
Important Note
If your vehicle does not have an IMMO or PATS system, this unit will be directly plug&play.
If your vehicle has an IMMO or PATS system, it will require a key relearn after installation. You can visit your local locksmith for help.
We also offer a full cloning service. We transfer all security data to the replacement unit, so it will be a plug&play installation.
For all European cars, Hyundai, and Kia vehicles, we recommend adding our cloning service as a bundle.
For American and Japanese cars, we recommend doing a key relearn on-site.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Chris Kelly –
The unit arrived quickly and was truly plug-and-play, saving me a bundle compared to dealer prices. Installation went smoothly thanks to their clear communication and fast service.
Paul Brown –
The 12663391 ECM for my 2014 Chevy Silverado arrived quickly and the free shipping was a nice bonus. The unit was perfectly programmed for my VIN, which made the installation straightforward with no extra work on my end. I appreciated how the team kept me informed throughout the process and answered all my questions promptly. Overall, the quality and service exceeded my expectations.
John Phillips –
Received the programmed ECM quickly with free shipping, and it worked perfectly right out of the box—highly recommend!