Description
2013 GMC Sierra 4.3L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2013 GMC Sierra 4.3L models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with no dealer visit required.
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
This ensures a fully functional, reliable, plug-and-play module you can install with confidence.
Important Note
Some vehicles equipped with IMMO (Immobilizer) or PATS (Passive Anti-Theft System) may require additional key programming after installation. This is normal for models where security data must be synchronized with the vehicle’s body control system.
For a 100% plug-and-play solution with no relearns, no key programming, and no compatibility issues, we recommend our ECU Cloning Service, which transfers all original security, immobilizer, and configuration data directly into the replacement unit.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Travis Torres –
I was pleasantly surprised at how easy this ECM was to install—literally plug and play with no headaches. The VIN programming was spot on, and my 2013 Sierra fired up right away without any error codes. Shipping was quick, and the unit arrived in perfect condition. Highly recommend if you want a hassle-free replacement for your truck’s ECM.
Sean Brooks –
This ECM arrived quickly and was ready to install right out of the box—no hassle, just perfect fit and function. Highly recommend for anyone needing a reliable replacement!
Plugged in smoothly with no issues at all. The VIN programming was spot on, and my Sierra runs like new again.
Super fast delivery and the ECU worked flawlessly on the first try. Saved me a ton of time and headaches!
Installed this in under an hour, and the truck fired up immediately. Great quality and exactly as described.
The unit came pre-programmed and fit perfectly. Truck performance is back to 100%—couldn’t be happier with this purchase!