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
Hunter Poole –
I was really impressed with how quickly this ECM arrived after I placed my order—shipping was definitely faster than I expected. When it came time to install, it was truly plug-and-play, which made the whole process way less stressful. Compared to the outrageous dealer prices, this purchase saved me a ton of money. The unit was perfectly programmed for my 2005 Cadillac CTS, and everything ran smoothly from start to finish. The customer support was also very responsive, answering all my questions promptly. Overall, this was a great experience, and my car runs like new again.
Elijah Keller –
I purchased the 12593780 ECM for my 2005 Cadillac CTS and was impressed by how quickly it arrived. The unit was truly plug-and-play, making the installation process smooth and hassle-free. The communication from the seller was clear and professional, and overall this saved me a significant amount compared to dealer prices. I’m very satisfied with the quick turnaround and the flawless performance of the updated module.
Benjamin Ward –
Fast shipping and the plug-and-play unit worked perfectly—this saved me a ton versus dealer prices and the whole process was hassle-free.
Allan Rogers –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2005 Cadillac CTS—installation was a breeze. Their communication was spot on, answering all my questions right away.