Description
2004 Jeep Grand Cherokee 4.0L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Jeep Grand Cherokee 4.0L 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
Cameron Douglas –
I was really impressed with how smoothly everything went ordering the 56044563AG ECM for my 2004 Jeep Grand Cherokee. The unit arrived quickly, and the fact that it came VIN programmed made installation a breeze—no additional programming needed on my end. The communication was excellent too; they kept me informed every step of the way and were quick to answer my questions. After swapping it in, my Jeep runs like new again. Definitely a reliable source for ECM replacements.
Allan Jenkins –
Received my ECM quickly with free shipping and it was perfectly programmed for my 2004 Jeep Grand Cherokee. Setup was seamless and the engine runs flawlessly now.
Ian Edwards –
Fast shipping and the unit was truly plug-and-play, making installation a breeze. Saved me a ton compared to dealer prices and the communication throughout was excellent.
Steven Hudson –
I was a bit nervous ordering an ECM online, but this unit for my 2004 Jeep Grand Cherokee arrived exactly as described and was already VIN programmed, which made the install seamless. The seller’s communication was impressive—they answered all my questions promptly and kept me updated throughout the process. Shipping was super fast, and the packaging was secure, so the part arrived in perfect condition. After installing it, my Jeep fired right up with no issues, and it’s running better than it has in years. Definitely recommend this seller for anyone needing a reliable ECM.
Adrian Phillips –
I ordered the 56044563AG ECM for my 2004 Jeep Grand Cherokee, and I’m very impressed with the whole process. The unit arrived quickly with free shipping, which was a nice surprise, and it came already VIN programmed, so installation was a breeze. The quality of the part feels solid, and my Jeep runs smoothly now. Customer support was also responsive when I had a few questions before purchase, which gave me confidence in choosing this seller.