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
Luis Scott –
I recently purchased the 56044565AH ECM for my 2004 Jeep Grand Cherokee and couldn’t be happier with the entire experience. The unit arrived quicker than I expected, and the best part was that it was already VIN programmed, so installation was completely hassle-free. I appreciated how the seller kept me informed throughout the shipping process, which helped ease any concerns I had about timing. Once installed, my Jeep started up smoothly and runs better than it has in years. Definitely a worthwhile investment for anyone needing a reliable ECM replacement.
Allan Lopez –
I purchased the 56044565AH ECM for my 2004 Jeep Grand Cherokee and was impressed by how smoothly the whole process went. The unit arrived quickly with free shipping, which was a great bonus. The programming was already completed based on my VIN, so installation was straightforward and I was up and running in no time. Customer support was also very responsive, answering my questions promptly and keeping me informed throughout the order.
Ryan Jenkins –
I recently purchased this ECM for my 2004 Jeep Grand Cherokee, and I couldn’t be happier with the experience. The unit arrived quickly with free shipping, which was a nice bonus. What impressed me most was the plug-and-play setup—installation was straightforward, and the Jeep fired up immediately without any issues. The quality of the part feels solid, and the whole process was smooth from start to finish. I’ll definitely come back here if I ever need another module.
Liam Russell –
Super fast shipping and the ECM came perfectly programmed for my Jeep—had it installed and running in no time. The communication was great throughout the whole process.