Description
2009 Cadillac CTS 3.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 Cadillac CTS 3.6L 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 require key programming after installation. This is normal.
For a 100% plug-and-play solution, we recommend using our full cloning service. We transfer all security data to the replacement unit.
A prepaid shipping label will be emailed to you. Allow you to mail in your original computer to us for full cloning.
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
Brandon Brooks –
I purchased the 12630594 ECM for my 2009 Cadillac CTS, and I’m really impressed with the quality. The unit arrived quickly with free shipping, which was a nice bonus. Their team provided professional programming, so it was truly plug-and-play once installed. Communication was clear throughout the process, and they answered all my questions promptly.
Noah Perez –
I was a bit nervous about ordering a replacement ECM for my 2009 Cadillac CTS, but this unit arrived quickly and was already VIN programmed, which made installation a breeze. The best part was how the seller provided professional programming service, so I didn’t have to worry about compatibility or extra setup. They also kept me updated every step of the way, answering my questions promptly and making the whole process very smooth. My car is running perfectly now, and I’m really impressed with the quality and service. Definitely a five-star experience from start to finish.
Joel Hayes –
Great quality ECM that arrived quickly with free shipping, and it was plug-and-play right out of the box.
Zachary Peterson –
I was really impressed with how smoothly everything went with this ECM for my 2009 Cadillac CTS. The unit arrived quickly thanks to their free shipping, which was a great bonus. What stood out most was the professional programming service—they had it perfectly matched to my VIN before it even shipped. Installation was straightforward, and my car has been running flawlessly ever since. The team also stayed in touch throughout the process, answering every question I had right away. Overall, a hassle-free experience with a quality product.