Description
2014 Chevrolet Silverado 3500 6.6L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2014 Chevrolet Silverado 3500 6.6L AT gas models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with our cloning service.
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:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS may require key programming after installation. This is normal.
For a 100% plug-and-play solution with no relearns, your original ECU must be sent in for cloning. We transfer all security data to the replacement unit.
👉Add the cloning service as a bundle at checkout — $300 CAD / $215 USD
A prepaid shipping label will be emailed to you.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Jack Clark –
The 2014 Chevrolet Silverado ECM arrived quickly and was exactly as described. Installation was a breeze with its true plug-and-play design, and my truck started up flawlessly without any additional programming needed. I appreciated the clear instructions and friendly customer support when I had a couple of questions. Overall, a reliable, hassle-free replacement that got my Silverado running like new again.
John Morris –
This ECM fit perfectly with my Silverado and was ready to go right out of the box—super easy install and quick delivery!
Really impressed with how smooth the entire process was; the unit was VIN programmed and worked flawlessly the first time.
Fast shipping and exactly as described—my truck fired up without a hitch thanks to this plug-and-play ECM.
Got this for my 2014 Silverado, and it plugged right in with no extra hassle. Runs like a charm!
The VIN programming saved me so much time, and the truck’s running strong again. Highly recommend for a hassle-free fix!
Lucas Morris –
I was a bit nervous about replacing the ECM on my 2014 Silverado, but this unit came completely programmed to my VIN and was genuinely plug-and-play. Installation was straightforward, and I had the truck running smoothly in no time without any error codes popping up. It was shipped quickly and arrived well-packed, which gave me confidence right away. Plus, when I had a quick question, their support team was really helpful and knowledgeable. Overall, this made a normally stressful repair much easier than expected.