Description
2016 Cadillac CTS 3.6L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2016 Cadillac CTS 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
Adrian Hall –
I was a bit nervous about replacing the ECM on my 2016 Cadillac CTS, but this unit made the whole process surprisingly smooth. It arrived quickly, and since it was already programmed to my VIN, installation was literally plug and play. Within minutes, my car fired right up with no errors or weird warning lights. The performance feels just as tight as before, and I didn’t have to waste time or money on additional programming visits. Definitely a hassle-free fix that gave me peace of mind. Highly recommend it if you want to avoid a headache.
Eric Turner –
Installed the ECM in my 2016 CTS with zero hassle—works perfectly and arrived quicker than expected. Highly recommend!
This ECU was exactly what I needed, pre-programmed for my VIN and truly plug-and-play. Made the repair effortless!
Fast shipping and flawless fit for my Cadillac CTS; the programming was spot on, no surprises at all.
Super impressed with how smooth the install went—this ECM was ready to go right out of the box.
The perfect match for my 2016 CTS, saved me so much time with the VIN programming already done. Great quality!
Tyler Cox –
The ECM arrived exactly as described and was already programmed to my VIN, which made the installation a breeze. It fit perfectly in my 2016 Cadillac CTS 3.6L, and the car started up immediately without any check engine lights. Shipping was surprisingly quick, and I appreciated the helpful customer support who answered my questions promptly. Overall, a seamless experience from start to finish.