Description
2010 GMC Sierra 4.3L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2010 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:
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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
Mark Morgan –
Super easy install and came programmed perfectly for my 2010 GMC Sierra. Arrived quickly and got my truck running like new!
James Carter –
I was a bit nervous about swapping out the ECM on my 2010 GMC Sierra, but this unit came programmed and ready to go, making the whole process way easier than I expected. Installation was straightforward—just plugged it in and it fired right up without any issues. The engine runs smoothly now, and I haven’t noticed any glitches or error codes since the swap. Shipping was quick, which was a big help since I needed it done fast. Overall, it saved me a lot of hassle and I’m really glad I went with this product.
Jason Brown –
I bought this ECM for my 2010 GMC Sierra after my original one failed, and I couldn’t be happier with how smoothly everything went. The unit arrived quicker than I expected, and it was already programmed to my VIN, which saved me a ton of hassle. Installation was straightforward—just plugged it in, and the truck fired right up with no errors or warning lights. I appreciated the clear instructions and the friendly support team who answered a couple of my questions promptly. Overall, this part worked flawlessly and got my Sierra back on the road without any downtime. Highly recommend for anyone needing a reliable replacement.
Nathan Walker –
This ECM arrived quickly and was exactly what I needed for my 2010 GMC Sierra. The VIN programming was spot on, so it was a seamless plug-and-play swap with no extra tuning required. I appreciated the clear instructions and the helpful customer support team who answered my questions promptly. Overall, this replacement part saved me a lot of time and hassle.