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



Chase Gray –
I was really impressed with how quickly the ECM arrived after I placed the order—shipping was faster than I expected. The unit was completely plug-and-play, making the installation straightforward and hassle-free. This saved me a significant amount compared to dealer prices, and the communication from the seller was clear and professional throughout the process. Overall, a smooth experience that got my Jeep back on the road in no time.
Ryan Brooks –
Super fast shipping and the ECU came perfectly programmed for my 2004 Jeep — had it installed and running in no time.
Dean Allen –
I was really impressed with how smoothly the process went for replacing the ECM on my 2004 Jeep Grand Cherokee. The unit arrived quickly, and the fact that it came VIN programmed made installation a breeze—just plug and play with no extra hassle. The communication from the seller was top-notch; they promptly answered all my questions and kept me informed every step of the way. After installing the part, my Jeep runs better than it has in years. Definitely a trustworthy source if you need a reliable ECM.
Samuel Turner –
I was really impressed with how quickly the ECM arrived—it shipped out faster than I expected. Installing it on my 2004 Jeep Grand Cherokee was straightforward since it was plug-and-play, which saved me a lot of time and hassle. The unit was already VIN programmed, so I didn’t have to worry about any complicated setup. Compared to the dealer’s quotes, this option saved me a huge chunk of money and didn’t compromise on quality. The whole process was smooth, and the communication from the seller made me feel confident throughout. Highly recommend for anyone needing a reliable replacement ECM!
Lucas Edwards –
Fast shipping and a true plug-and-play unit—installed in no time and saved me a ton versus dealer prices. Communication was clear and the whole process went smoothly.
Jordan Clark –
I ordered the 56044565AG ECM for my 2004 Jeep Grand Cherokee and was really impressed with the whole process. The unit arrived quickly, and it was already VIN programmed, so installation was straightforward with no extra hassle. Their communication was excellent; they responded promptly to my questions and kept me informed every step of the way. Overall, a smooth experience with a quality product that got my Jeep running perfectly again.
Russell Murphy –
I was really impressed with how smooth the whole process was for the 56044565AG ECM for my 2004 Jeep Grand Cherokee. The fact that it came VIN programmed saved me a lot of hassle, and it truly was plug-and-play when I installed it. Shipping was faster than I expected, and the cost was pretty reasonable, which was a nice bonus. I had a couple of questions during the order, and their customer service was quick to respond, making me feel confident about my purchase. Overall, this replacement part worked perfectly and got my Jeep running like new again.