Description
2011 Cadillac CTS 3.0L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2011 Cadillac CTS 3.0L 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




Isaac Stewart –
This ECM arrived quickly and was exactly what I needed for my 2011 Cadillac CTS 3.0L. The VIN programming was spot on, making the install straightforward without any complicated steps. I appreciated how it was truly plug-and-play, and the car fired right up with no issues. Overall, a reliable part that saved me time and hassle.
Scott Johnson –
This ECM fit my 2011 CTS perfectly and fired up immediately—installation was a breeze and the delivery was quicker than I expected.
Super smooth swap with this VIN-programmed ECU; had my Cadillac running like new in no time!
Exactly what I needed for my CTS, arrived fast and works flawlessly right out of the box.
Plugged this in with zero hassle, and my CTS runs like a dream again—highly recommend!
Fast shipping and a perfect match for my 2011 CTS, this ECM made the whole repair seamless and stress-free.