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
Jonah Payne –
The ECU arrived quickly with free shipping and worked perfectly right out of the box—no hassle with programming needed.
Excellent service—kept me informed every step of the way and the PCM fit my 2004 Jeep Grand Cherokee flawlessly.
Super fast turnaround and the plug-and-play setup made installation a breeze; highly recommend for anyone needing a reliable ECM.
Great communication throughout the process, and the updated ECU runs my Jeep smoothly with no issues at all.
Shipping was surprisingly reasonable, and the programming service they provided saved me a ton of time and headaches.
Owen Bailey –
I purchased the 56044565AE ECM for my 2004 Jeep Grand Cherokee and was very impressed by the entire process. The unit arrived quickly with free shipping, which was a nice bonus. The programming was already completed, making installation straightforward with no headaches. Customer service was responsive and kept me informed every step of the way, which made me feel confident in my purchase.