Description
2017 Chevrolet Silverado 4.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2017 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
Jacob Richardson –
I was really impressed with how quickly this ECM arrived, especially with free shipping included. The fact that it came VIN programmed and ready to install made the whole process so much easier—no extra trips to the shop needed. The quality feels solid, and my Silverado runs perfectly now. Customer service was also very responsive when I had a few questions before ordering.
Mason Roberts –
I recently purchased the 12678815 ECM for my 2017 Chevy Silverado, and I couldn’t be happier with the experience. The unit arrived quickly with free shipping, which was a nice bonus. What impressed me most was the professional programming service they provided — it was ready to plug and play right out of the box, saving me a lot of hassle. The whole process was smooth, and my truck runs perfectly now. I’ll definitely come back here if I ever need another module.
Sean Hamilton –
Fast shipping and the plug-and-play setup made installing this ECU a breeze—definitely recommend for anyone needing a quick, hassle-free solution.
James Payne –
Fast shipping and the plug-and-play unit worked perfectly on my Silverado, saving me a ton compared to dealer prices. Installation was straightforward and the service was very professional.