Description
2004 Jeep Grand Cherokee 4.0L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Jeep Grand Cherokee 4.0L 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
Blake Bailey –
I needed a replacement ECM for my 2004 Jeep Grand Cherokee, and this unit was exactly what I was looking for. The best part was that it came VIN programmed, so installation was completely plug-and-play with no extra hassle. Shipping was surprisingly fast and free, which made the whole process even better. I appreciated how the seller kept me updated throughout and responded quickly when I had a couple of questions. After installing it, my Jeep runs smoother than it has in years—definitely worth every penny.
Austin Poole –
I needed a replacement ECM for my 2004 Jeep Grand Cherokee, and this 56044567AE unit was exactly what I was looking for. The biggest relief was that it came VIN programmed and ready to go, so installation was straightforward without any guesswork. Shipping was surprisingly quick and free, which made the whole process even better. The quality of the module feels solid and I already notice smoother engine performance. Overall, a great experience from ordering to installation.
Carlos Parker –
The ECU arrived quickly with free shipping, and the plug-and-play programming made installation a breeze. Their communication was spot on, keeping me informed every step of the way.
Robert Nelson –
I ordered the 56044567AE ECM for my 2004 Jeep Grand Cherokee and was really impressed with the service. The unit arrived quickly with free shipping, which was a nice bonus. The ECU was already VIN programmed, so installation was straightforward and hassle-free. Communication throughout the process was excellent, and they answered all my questions promptly.