Description
2004 Cadillac CTS 3.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Cadillac CTS 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
Scott Evans –
Shipping was super quick, and the ECU was truly plug-and-play—saved me a bundle compared to dealership prices. Installation was hassle-free and the whole process was smooth from start to finish.
Adam Jenkins –
The VIN programmed ECM arrived quickly with free shipping and worked perfectly right out of the box. Their team was super responsive and made the whole process hassle-free.
Mason Graham –
The 2004 Cadillac CTS 3.6L ECM arrived exactly as described and was already VIN programmed, which made installation a breeze. The shipping was very reasonable and the unit came well packaged. I appreciated how quickly they answered my questions when I called—really professional and helpful service from start to finish. The engine runs perfectly now and I’m very satisfied with the quality and support.