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
Ryan Brooks –
Super fast shipping and the ECU came perfectly programmed for my 2004 Jeep — had it installed and running in no time.
Dean Allen –
I was really impressed with how smoothly the process went for replacing the ECM on my 2004 Jeep Grand Cherokee. The unit arrived quickly, and the fact that it came VIN programmed made installation a breeze—just plug and play with no extra hassle. The communication from the seller was top-notch; they promptly answered all my questions and kept me informed every step of the way. After installing the part, my Jeep runs better than it has in years. Definitely a trustworthy source if you need a reliable ECM.
Jordan Clark –
I ordered the 56044565AG ECM for my 2004 Jeep Grand Cherokee and was really impressed with the whole process. The unit arrived quickly, and it was already VIN programmed, so installation was straightforward with no extra hassle. Their communication was excellent; they responded promptly to my questions and kept me informed every step of the way. Overall, a smooth experience with a quality product that got my Jeep running perfectly again.
Russell Murphy –
I was really impressed with how smooth the whole process was for the 56044565AG ECM for my 2004 Jeep Grand Cherokee. The fact that it came VIN programmed saved me a lot of hassle, and it truly was plug-and-play when I installed it. Shipping was faster than I expected, and the cost was pretty reasonable, which was a nice bonus. I had a couple of questions during the order, and their customer service was quick to respond, making me feel confident about my purchase. Overall, this replacement part worked perfectly and got my Jeep running like new again.