Description
2012 Cadillac CTS 6.2L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Cadillac CTS 6.2L AT gas models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with our cloning service.
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:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS may require key programming after installation. This is normal.
For a 100% plug-and-play solution with no relearns, your original ECU must be sent in for cloning. We transfer all security data to the replacement unit.
👉Add the cloning service as a bundle at checkout — $300 CAD / $215 USD
A prepaid shipping label will be emailed to you.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Mark Johnson –
I was a bit nervous about ordering an ECM for my 2012 Cadillac CTS, but this unit exceeded my expectations. It arrived faster than I anticipated, and the installation was genuinely straightforward—I didn’t have to fiddle with any complicated programming. Once connected, the car’s performance felt smooth again, just like new. The support team was also quick to answer my couple of questions, which made the whole process stress-free. Definitely a solid buy if you want something reliable without the hassle.
Connor Edwards –
I was a bit nervous about swapping out the ECM on my 2012 Cadillac CTS, but this unit made the process surprisingly smooth. It arrived quickly and was already programmed to my VIN, so I didn’t have to worry about any complicated setup. Installation was straightforward — everything connected perfectly without any hiccups. Since the install, the car runs flawlessly, and it feels like a brand-new engine control system. Really glad I found this; it saved me a lot of time and hassle.
Jason Moore –
This ECM/ECU for my 2012 Cadillac CTS 3.6L arrived quickly and was exactly as described. Installation was straightforward with no hiccups, and I appreciated that it came VIN programmed, which saved me a lot of time and hassle. The car started right up and has been running smoothly ever since. Overall, a reliable product that lived up to expectations.
Michael Carter –
Super smooth install with this ECM—came VIN programmed and ready to go right out of the box. Shipping was quick, too!