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
Henry Nichols –
I was really impressed with how smooth the whole process was for my 2004 Jeep Grand Cherokee ECM replacement. The unit arrived quickly with free shipping, which was a nice surprise since I wasn’t expecting that. What stood out the most was the professional programming service they provide—it came perfectly VIN programmed and ready to install, saving me so much hassle. The Jeep started right up without any issues, and the performance feels great compared to the old unit. Definitely recommend this if you want a reliable and straightforward solution.
Benjamin Lewis –
I was impressed with how quickly the ECM arrived and that it came fully VIN programmed, making installation straightforward. The free shipping was a nice bonus, and the unit worked flawlessly right out of the box. The seller also responded promptly when I asked a few questions about compatibility, which gave me extra confidence in my purchase. Overall, a smooth experience from start to finish.
Nicholas Cook –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2004 Jeep Grand Cherokee—install and go, no hassle. Customer support was responsive and kept me informed every step of the way.