Description
2020 Chevrolet Blazer 3.6L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2020 Chevrolet Blazer 3.6L 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:
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Complete communication & CAN-bus verification
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Sensor input/output and signal integrity checks
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Injector & ignition pulse simulation
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Power, ground, and load-circuit analysis
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Flash memory integrity and checksum validation
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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
Jack Reed –
I was a bit nervous about swapping out the ECM on my 2020 Chevy Blazer, but this unit made the process so straightforward. It came VIN programmed right out of the box, which saved me a ton of time and hassle. Installation was truly plug and play—no extra coding or complicated setups needed. I appreciated the quick shipping too, it arrived faster than I expected. After the swap, my Blazer runs smoother than ever and all the dashboard lights stayed off. Definitely a solid purchase!
Brian Edwards –
This ECM for my 2020 Chevrolet Blazer fit perfectly and was ready to go right out of the box. The VIN programming was spot on, which saved me a lot of hassle during installation. Shipping arrived sooner than expected, and the overall quality feels very solid. Definitely a reliable upgrade if you need a replacement ECU without complications.
Hunter Bailey –
Perfect fit and shipped quickly—installed it in minutes and my Blazer runs like new! Highly recommend for anyone needing a reliable ECM swap.
Super easy installation with zero hassle. The ECU came VIN programmed exactly as promised, saving me tons of time.
Received the part faster than expected, and it worked flawlessly right out of the box. Definitely a stress-free upgrade for my Blazer!
This ECM/ECU was a seamless plug-and-play solution. Very impressed with the quality and how smooth the process was from start to finish.
Great product and excellent customer support helped me get everything set up perfectly. My 2020 Blazer feels brand new again!