Description
2013 Chevrolet Black Diamond Avalanche 5.3L ECM / ECU – VIN Programmed | Plug & Play
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 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



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.