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
Gavin Miles –
I was really impressed with how smoothly everything went from start to finish. The ECU arrived quickly with free shipping, which was a nice bonus. They had already programmed it for my 2009 Cadillac CTS 3.6L, so installation was literally plug-and-play. After swapping it out, my car fired up immediately with no issues at all. I also appreciated their prompt responses when I had a couple of questions before ordering—made me feel confident about the whole process. Definitely a hassle-free experience!
Scott Lawrence –
I needed a replacement ECM for my 2009 Cadillac CTS and was really impressed with how smooth the whole process went. They provided professional VIN programming, so the unit was ready to go right out of the box—no additional setup required. Shipping was fast and the cost was very reasonable, which was a nice bonus. Throughout the purchase, their team was quick to answer my questions and kept me informed every step of the way. The car runs perfectly now, and I’m grateful for such a hassle-free experience.
Justin Keller –
Received my programmed ECM quickly with free shipping, and it fit perfectly into my 2009 Cadillac CTS—highly recommend!
Logan Ramirez –
I purchased the 12623325 ECM for my 2009 Cadillac CTS and was really impressed with the professional programming service they provided. The unit arrived ready to install, which saved me a lot of hassle. Shipping was free and fast, and the communication throughout the process was excellent—they kept me informed every step of the way. The car runs perfectly now with no issues at all.