Description
2013 Chevrolet Black Diamond Avalanche 5.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2013 Chevrolet Black Diamond Avalanche 5.3L 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 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 — $200 CAD / $140 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




Isaac Taylor –
Arrived quickly and was exactly as advertised—installed in minutes with zero issues. Highly recommend for anyone needing a reliable ECM swap!
Luis Hall –
I was a bit nervous about ordering an ECM for my 2013 Avalanche, but this Black Diamond unit exceeded my expectations. It arrived quickly, well-packaged, and was truly plug-and-play like advertised. Installation took less than an hour, and my truck fired right up without any hiccups. I appreciated that it was already VIN programmed, saving me a ton of time and hassle. The performance feels solid, and I’ve had zero issues since the swap. Definitely a reliable option if you need a replacement ECU.
Kyle Walker –
The 2013 Chevrolet Black Diamond Avalanche ECM arrived quickly and was exactly as described. Installation was straightforward with no issues, and it fit perfectly with the VIN already programmed. The engine runs smoothly now, and I’m impressed with how seamless the whole process was. Definitely a reliable replacement that saved me a lot of time and hassle.