Description
2004 Jeep Liberty 3.7L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Jeep Liberty 3.7L 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



Cole Cox –
I was really impressed with how smooth the entire process was from start to finish. The 2004 Jeep Liberty ECM arrived quickly, and it was already VIN programmed, so installation was basically plug-and-play. I had a few questions before ordering, and their customer service responded promptly with clear answers, which gave me confidence in my purchase. The shipping was free too, which was a nice bonus. After swapping the module, my Jeep runs perfectly again—no issues whatsoever!
Hunter Miller –
Super fast shipping and the ECU was ready to go right out of the box—plug-and-play made the whole process a breeze.
Chris Howard –
I ordered the 2004 Jeep Liberty 3.7L ECM from this seller and was really impressed with how smooth the entire process was. The unit arrived quickly with free shipping, which was a nice bonus. They handled the VIN programming professionally, so it was essentially plug-and-play when I installed it. Customer support was also very responsive when I had a couple of questions before purchase.