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
Max Smith –
I ordered the 12676230 ECM for my 2014 GMC Sierra and was really impressed with how fast it arrived, especially with free shipping included. The unit came VIN programmed and ready to install, which saved me a lot of hassle. Their team kept me informed throughout the entire process and answered all my questions promptly. Overall, the quality is top-notch, and my truck runs perfectly now.
Gavin Reed –
I was really impressed with how quickly the ECM arrived—shipping was faster than I expected. Installation was straightforward since the unit was plug-and-play, and everything worked perfectly right away. Choosing this service saved me a significant amount compared to dealer prices, plus their communication was clear and professional throughout. Overall, a smooth and hassle-free experience.
Matthew Smith –
Received my 2014 GMC Sierra ECM quickly with free shipping, and the plug-and-play setup made installation a breeze. Highly recommend!
Owen Murray –
Fast shipping and the unit was truly plug-and-play—saved me a bundle versus dealer pricing. Installation was a breeze thanks to their clear communication.
Matthew Scott –
I was a bit nervous ordering an ECM online, but this one for my 2014 GMC Sierra arrived quickly and was exactly as described. The fact that it came VIN programmed made installation a breeze—pretty much plug-and-play with no extra trips to the shop. The shipping was super reasonable too, which was a nice bonus. I appreciated how the seller kept me updated throughout the process and answered all my questions promptly. Since installing it, my truck runs smoother than ever, so I’m very happy with the purchase.