Description
2004 Jeep Grand Cherokee 4.7L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Jeep Grand Cherokee 4.7L 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



Marcus Cook –
The programming service was seamless, and the free shipping made the whole process even better—highly recommend for Grand Cherokee owners.
Kevin Reynolds –
Shipping was super fast and the unit was truly plug-and-play. Saved me a bundle compared to dealer prices and installation went without a hitch.
Jason Green –
I purchased the 56044564AF ECU for my 2004 Jeep Grand Cherokee, and I’m really impressed by the quality and the fit. The seller provided professional VIN programming, so it was basically plug-and-play once it arrived. Shipping was free and arrived sooner than I expected, which made the whole process hassle-free. Communication was spot on as well—they answered my questions promptly and kept me updated throughout.
Jacob Tucker –
I was really impressed with how smoothly everything went from start to finish. The ECM arrived quickly and was already programmed for my 2004 Jeep Grand Cherokee, so installation was plug-and-play with no extra hassle. The team kept me updated throughout the process and answered my questions promptly, which gave me a lot of confidence in their service. After putting it in, my Jeep runs like new again—no more check engine lights or performance issues. Definitely a five-star experience all around.