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
Edward Cook –
I ordered the 12600797 ECM for my 2005 Cadillac CTS and was really impressed with how quickly it arrived. The unit was completely plug-and-play, so installation went without a hitch. This saved me a huge amount compared to dealer prices, and the communication throughout the process was clear and professional. Overall, a smooth experience from start to finish.
Grant Green –
I was really impressed with how smoothly everything went from start to finish. The ECM arrived quickly, and it was already VIN programmed, so installation was a breeze—no extra trips to the shop needed. The shipping was very reasonable, which was a nice bonus, and I appreciated how the team kept me informed throughout the process. Since getting it installed, my 2005 Cadillac CTS runs like new again. Definitely a reliable source for ECM replacements!
James Marshall –
I was impressed by how quickly this 2005 Cadillac CTS ECM arrived, especially with the free shipping included. The unit came already VIN programmed, so installation was straightforward and hassle-free. The seller also kept me informed throughout the process, answering all my questions promptly. Overall, the quality and service exceeded my expectations.
Owen Nichols –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2005 Cadillac CTS—installation was a breeze! The seller kept me informed every step of the way, which made the whole process smooth and stress-free.
Gavin Reed –
Fast shipping and the unit was truly plug-and-play, saving me a bundle versus dealer prices. Installation went smoothly and the customer support was on point throughout.