Description
2004 Cadillac SRX 3.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Cadillac SRX 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




Ian Hamilton –
I needed a replacement ECM for my 2004 Cadillac SRX, and this unit arrived ready to go with the VIN already programmed, which saved me a ton of hassle. The shipping was surprisingly quick and free, so I didn’t have to worry about extra costs or delays. What really stood out was how well they communicated throughout the process—any questions I had were answered promptly and clearly. Installation was straightforward, and my car has been running smoothly ever since. Overall, a solid purchase that met all my expectations.
Kyle Graham –
The VIN programming was flawless, and the plug-and-play setup made installation a breeze—great communication throughout the process.
Received my updated ECM quickly with free shipping, and it worked perfectly on my 2004 Cadillac SRX.
Excellent service with fast turnaround and professional programming that saved me a lot of hassle.
They answered all my questions promptly and the unit arrived ready to install, no extra work needed.
Very impressed with the repair quality and the reasonable shipping cost—highly recommend for Cadillac owners!
Russell Keller –
I’m really impressed with this programmed ECM for my 2004 Cadillac SRX. The shipping arrived much faster than I expected, and the unit was truly plug-and-play — installation went smoothly without any issues. The communication from the seller was clear and professional throughout the process. Overall, this saved me a ton compared to dealer prices, and I couldn’t be happier with how well it’s working.
Aiden Webb –
Fast shipping and a plug-and-play unit made installation a breeze, saving me a ton compared to dealer prices. Great service and quick turnaround all around.
Tyler Sharp –
I ordered the 2004 Cadillac SRX 3.6L ECM and was really impressed with the entire process. The unit arrived quickly with free shipping, which was a nice bonus. They programmed the ECU to my VIN ahead of time, so installation was straightforward and plug-and-play. Customer service was also very responsive when I had a couple of questions before ordering.