Description
2014 GMC Sierra 4.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2014 GMC Sierra 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
Jorge Morris –
I purchased the 12658728 ECM for my 2014 GMC Sierra and was really impressed with the entire experience. The unit arrived quickly with free shipping, which was a nice bonus. The programming was done professionally, so it was plug-and-play with no hassle. Their customer service was also great; they kept me informed every step of the way and answered all my questions promptly.
Benjamin Brown –
Fast shipping and the plug-and-play ECM worked perfectly on my 2014 Sierra. Saved me a ton compared to dealer prices and the installation was hassle-free.
Marcus Campbell –
The programming service was spot on and they kept me updated throughout the process. Shipping was fast and affordable too.