Description
2005 Cadillac CTS 3.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2005 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
Patrick Wallace –
Fast shipping and the ECU was truly plug-and-play, saving me a bundle over dealer prices. Installation went smoothly thanks to clear instructions and great customer support.
Elliot Richardson –
I was really impressed with how smooth the whole process went when ordering the ECM for my 2005 Cadillac CTS. The unit arrived quickly, and the best part was that it came VIN programmed and ready to install—no extra hassle. Their communication was spot on; they answered all my questions promptly and kept me updated throughout the shipping process. After installing it, my car fired right up and runs better than before. Definitely a reliable service I’d recommend to anyone needing a replacement module.
Michael Reynolds –
Received my programmed ECM quickly with free shipping, and it worked perfectly right out of the box. Great service and fast turnaround!
Russell Edwards –
I purchased the 12581144 ECM for my 2005 Cadillac CTS and was impressed by how smoothly everything went. The unit came VIN programmed and ready to plug in, which saved me a ton of hassle. Shipping was free and surprisingly fast, arriving well within the expected timeframe. Whenever I had questions, their customer service was quick to respond and very helpful.