Description
2010 Cadillac STS 4.6L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2010 Cadillac STS 4.6L 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
Henry Clark –
Installed in no time and the car fired right up—exactly what I needed. Shipping was quick and everything matched the description perfectly.
Jordan Scott –
This ECM arrived quickly and fit my 2010 Cadillac STS 4.6L perfectly. Installation was straightforward since it was truly plug-and-play, saving me a lot of time and hassle. After swapping it in, my car started right up with no issues, and the VIN programming was spot on. Overall, a reliable product that worked exactly as advertised.
Luis Wright –
I was a bit nervous about ordering an ECM online, but this 2010 Cadillac STS unit exceeded my expectations. The VIN programming was spot on, and it truly was plug-and-play—installation took less than an hour with no hiccups. My car fired up immediately, and everything runs smoothly now. Shipping was quicker than I anticipated, and the whole process felt very professional. Definitely a solid buy if you want to avoid dealership hassles.
Having struggled with a faulty ECM for weeks, I’m so relieved I found this replacement for my 2010 Cadillac STS. It arrived well-packaged and ready to go, matched perfectly with the VIN programmed before shipping. The install was straightforward; I simply plugged it in, and the car’s performance improved right away. I appreciated the quick responses from their support team when I had a couple of questions. This was an easy fix and saved me a lot of time and money.
This ECM for my 2010 Cadillac STS was exactly