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 for a true plug-and-play installation with our cloning service.
Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
Every ECU is inspected, refreshed, and verified through advanced diagnostic tools. Testing includes:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS require key programming after installation. This is normal.
For a 100% plug-and-play solution, we recommend using our full cloning service. We transfer all security data to the replacement unit.
A prepaid shipping label will be emailed to you. Allow you to mail in your original computer to us for full cloning.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Marcus Cook –
The programming service was seamless, and the free shipping made the whole process even better—highly recommend for Grand Cherokee owners.
Jason Green –
I purchased the 56044564AF ECU for my 2004 Jeep Grand Cherokee, and I’m really impressed by the quality and the fit. The seller provided professional VIN programming, so it was basically plug-and-play once it arrived. Shipping was free and arrived sooner than I expected, which made the whole process hassle-free. Communication was spot on as well—they answered my questions promptly and kept me updated throughout.
Jacob Tucker –
I was really impressed with how smoothly everything went from start to finish. The ECM arrived quickly and was already programmed for my 2004 Jeep Grand Cherokee, so installation was plug-and-play with no extra hassle. The team kept me updated throughout the process and answered my questions promptly, which gave me a lot of confidence in their service. After putting it in, my Jeep runs like new again—no more check engine lights or performance issues. Definitely a five-star experience all around.