Description
2009 Cadillac STS-V 4.4L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 Cadillac STS-V 4.4L 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
Caleb Cox –
Arrived quickly and installed without a hitch—my STS-V is running smoother than ever! The VIN programming was spot on, highly recommend.
Super simple setup, and the car fired right up with no issues. Great quality and fast delivery made this an easy buy.
Everything worked exactly as promised, no extra tweaks needed. Really impressed with how seamless the ECU swap was!
Fast shipping and hassle-free installation—this ECM brought my 2009 STS-V back to life perfectly.
Plugged it in, and the engine started up like it was brand new. Couldn’t ask for a better replacement part!
Oliver Young –
I was really impressed with how straightforward the installation was on this 2009 Cadillac STS-V ECM. It arrived quickly and was already programmed to my VIN, which saved me a ton of hassle. Once plugged in, everything fired up perfectly without any additional setup. The fit and function matched exactly what I needed to get my car back on the road smoothly.