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



Henry Baker –
I was a bit nervous about ordering an ECM online for my 2004 Jeep Grand Cherokee, but this unit arrived quickly and was already VIN programmed, which saved me a lot of hassle. The setup was truly plug-and-play, and my Jeep fired right up with no issues. The shipping was surprisingly fast and free, which was a nice bonus. I also appreciated the prompt responses when I had a couple of questions before purchasing. Overall, a smooth experience and great quality part.
Harvey Bell –
Received my programmed ECM quickly with free shipping, and it fit perfectly in my 2004 Jeep Grand Cherokee. Great service and hassle-free plug-and-play setup!
Mark Campbell –
I ordered the 56044565AC ECM for my 2004 Jeep Grand Cherokee, and I’m really impressed with the service. The unit arrived quickly with free shipping, which was a nice bonus, and it was already VIN programmed, so installation was smooth and straightforward. Their communication was top-notch; they kept me informed throughout the process and answered all my questions promptly. The engine runs perfectly now, no issues at all.
Adrian Adams –
The 56044565AC for my 2004 Jeep Grand Cherokee arrived quickly and was a perfect plug-and-play fit, saving me a ton compared to dealer pricing. Installation was smooth and the communication was top-notch throughout.