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



Jonah Payne –
The ECU arrived quickly with free shipping and worked perfectly right out of the box—no hassle with programming needed.
Excellent service—kept me informed every step of the way and the PCM fit my 2004 Jeep Grand Cherokee flawlessly.
Super fast turnaround and the plug-and-play setup made installation a breeze; highly recommend for anyone needing a reliable ECM.
Great communication throughout the process, and the updated ECU runs my Jeep smoothly with no issues at all.
Shipping was surprisingly reasonable, and the programming service they provided saved me a ton of time and headaches.
Owen Bailey –
I purchased the 56044565AE ECM for my 2004 Jeep Grand Cherokee and was very impressed by the entire process. The unit arrived quickly with free shipping, which was a nice bonus. The programming was already completed, making installation straightforward with no headaches. Customer service was responsive and kept me informed every step of the way, which made me feel confident in my purchase.
Nicholas Peterson –
I was really impressed with how quickly the ECM arrived after I placed my order, and it was ready to go right out of the box. The unit fit perfectly and was truly plug-and-play, which made the installation process smooth and hassle-free. Compared to the dealer’s estimate, this service saved me a huge amount of money, and their communication was clear and helpful throughout. Overall, a professional experience that I highly recommend for anyone needing a reliable replacement ECU.
Ian Webb –
Fast shipping and a plug-and-play unit made installation a breeze, plus I saved a ton compared to dealer prices. Great communication and a quick turnaround—highly recommend!
Dylan Smith –
I recently bought the 56044565AE ECM for my 2004 Jeep Grand Cherokee, and I couldn’t be happier with how everything turned out. The shipping was surprisingly fast, arriving much sooner than I expected, which was a huge relief. Installation was straightforward since the unit was fully plug-and-play, saving me the headache of complicated programming. The best part? This service saved me a ton of money compared to what the dealer wanted to charge for the same repair. Throughout the process, communication was clear and professional, making the whole experience smooth from start to finish. I’ll definitely keep this vendor in mind for future repairs.