Description
2007 Cadillac STS 3.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2007 Cadillac STS 3.6L models.
Each unit is VIN-programmed, updated, and fully tested.Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
This is not a brand-new unit. It is a rebuilt unit that is inspected, refreshed, and fully tested before shipping.
Testing includes communication, CAN-bus, sensor signal, power circuit, flash memory, and reliability checks.
Important Note
If your vehicle does not have an IMMO or PATS system, this unit will be directly plug&play.
If your vehicle has an IMMO or PATS system, it will require a key relearn after installation. You can visit your local locksmith for help.
We also offer a full cloning service. We transfer all security data to the replacement unit, so it will be a plug&play installation.
For all European cars, Hyundai, and Kia vehicles, we recommend adding our cloning service as a bundle.
For American and Japanese cars, we recommend doing a key relearn on-site.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566



Kevin Johnson –
I was a bit nervous about replacing the ECM on my 2007 Cadillac STS, but this unit arrived already VIN programmed, which made the whole process so much smoother. The plug-and-play setup meant I didn’t have to deal with any complicated coding myself. Shipping was surprisingly quick and free, which was a nice bonus. The quality feels great, and my car runs perfectly now, like new again. I really appreciated how the seller kept me posted through every step of the order.
Frank Palmer –
I was a bit nervous about ordering an ECM online for my 2007 Cadillac STS, but this purchase exceeded my expectations. The unit arrived quickly and the shipping cost was very reasonable, which was a relief. What really stood out was how smoothly everything worked once installed—the VIN programming was spot on, and my car fired up without any issues. The seller also kept me informed throughout the process, answering my questions promptly and making the whole experience feel very professional. Overall, I’m really happy with the quality and service and would definitely order from them again if needed.
Scott Baker –
Shipping was super fast and the ECM was completely plug-and-play, saving me a bundle versus dealer prices. Installation went smoothly and the communication from the seller was top-notch.
Owen Carter –
I was pleasantly surprised by how quickly the 2007 Cadillac STS ECM arrived—shipping was faster than I expected. The unit was fully programmed by VIN and ready to install right out of the box, making the whole process hassle-free. Compared to the dealership’s repair costs, this purchase saved me a significant amount of money. The communication with the seller was clear, and the installation went smoothly with no issues.
Shane Green –
I bought the 2007 Cadillac STS 3.6L ECM from this seller and was impressed by how smoothly everything went. The unit arrived quickly with free shipping, and it was already VIN programmed, so installation was practically plug-and-play. They also answered my questions promptly when I had concerns about compatibility. Overall, the repair quality is solid, and my car runs perfectly now.
Robert Brooks –
Fast shipping and plug-and-play setup made swapping the ECM in my 2007 Cadillac STS a breeze. Great service all around!