Description
2006 Cadillac STS 4.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2006 Cadillac STS 4.6L 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




Mason Bailey –
Fast shipping and the ECM was truly plug-and-play, saving me hundreds over dealer prices. Installation went smoothly and the whole experience was hassle-free.
Victor Murray –
I purchased the 2006 Cadillac STS 4.6L ECM from this seller and was pleasantly surprised by how smooth the process was. The unit came VIN programmed and ready to install, which saved me a ton of time and hassle. Their communication was spot on—they responded quickly to my questions and kept me informed every step of the way. Shipping was free and arrived faster than I expected, which was a great bonus. Once installed, my Cadillac ran perfectly without any glitches. Definitely a reliable source for ECM replacements.
Keith Cooper –
I was really impressed with the professional programming service they provided for my 2006 Cadillac STS ECM. The unit arrived perfectly programmed and was truly a plug-and-play replacement, which saved me a lot of hassle. Shipping was free and arrived quicker than I expected, making the whole process smooth and efficient. Their team also kept me informed throughout, which gave me peace of mind.
Gavin Nelson –
The ECM arrived quickly with free shipping, and the plug-and-play setup was flawless—couldn’t be happier with the service.