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



Anthony Moore –
I ordered the 56044565AF ECM for my 2004 Jeep Grand Cherokee, and the entire process was seamless. The unit arrived quickly with free shipping, which was a great bonus. They provided professional programming tailored to my VIN, so installation was plug-and-play without any headaches. The Jeep runs perfectly now, and I’m really impressed with the quality and service.
Bruce Burton –
Fast shipping and the unit was completely plug-and-play, saving me a bundle compared to dealer prices. Installation went smoothly and the customer support was top-notch.
Chris Jenkins –
I was really impressed with the service I received for the 56044565AF ECM for my 2004 Jeep Grand Cherokee. The unit arrived quickly with free shipping, which was a nice bonus. Installation was straightforward because the ECM was already VIN programmed, saving me a ton of time and hassle. I also appreciated how the seller kept me informed throughout the process, answering my questions promptly and professionally. Since swapping it out, my Jeep runs smoother than it has in years. Overall, a great experience from start to finish.
Miguel Hayes –
This ECU arrived quickly with free shipping and was perfectly programmed for my 2004 Jeep Grand Cherokee—installation was a breeze. Communication was spot on, and they kept me informed every step of the way.
Jonah Campbell –
The ECM arrived much quicker than I expected, which was a great start. Installation was straightforward since it was completely plug-and-play with no extra programming needed on my end. This saved me a ton compared to dealer prices, and the communication from the seller was clear and helpful throughout. Overall, a smooth experience that got my 2004 Grand Cherokee running perfectly again.
Luke Cook –
I was really impressed with how quickly this ECM arrived—shipping was faster than I expected, which was a relief since I needed my Jeep back on the road quickly. The unit came VIN programmed and was completely plug-and-play, making installation a breeze even for someone who’s not a pro. The whole process saved me a ton compared to the dealer’s price, and the communication from the seller was clear and helpful throughout. After swapping it in, my Grand Cherokee started right up with no issues, and it’s been running smooth ever since. Definitely a stress-free experience that I’d recommend to anyone in need of a replacement ECM.