Description
2015 Cadillac XTS 3.6L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2015 Cadillac XTS 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
Jason Hill –
This 2015 Cadillac XTS ECM arrived quickly and was exactly as described. Installation was straightforward thanks to the VIN programming already done, so I just plugged it in and everything fired up without a hitch. The engine runs smooth now, and the performance feels like it did when new. Really impressed with the hassle-free experience and the quality of the part.
Liam Cook –
Installed the ECM in my 2015 Cadillac XTS with zero issues—super fast shipping and it fit perfectly right out of the box. Highly recommend for anyone needing a quick, reliable fix!
Sean Hall –
I was a bit hesitant ordering an ECM online, but this one exceeded my expectations. It arrived faster than I thought, and installation was straightforward—literally plug and play with no programming headaches. My 2015 Cadillac XTS fired right up, and I haven’t experienced any issues since. The peace of mind knowing it’s VIN programmed and ready to go saved me a lot of time and hassle. Overall, a solid product that works exactly as promised. I’m really glad I found this.