Description
2004 Jeep Wrangler 4.0L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Jeep Wrangler 4.0L models.
Each unit is VIN-programmed, updated, and fully tested.Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
This is not a brand-new unit. It is a rebuilt unit that is inspected, refreshed, and fully tested before shipping.
Testing includes communication, CAN-bus, sensor signal, power circuit, flash memory, and reliability checks.
Important Note
If your vehicle does not have an IMMO or PATS system, this unit will be directly plug&play.
If your vehicle has an IMMO or PATS system, it will require a key relearn after installation. You can visit your local locksmith for help.
We also offer a full cloning service. We transfer all security data to the replacement unit, so it will be a plug&play installation.
For all European cars, Hyundai, and Kia vehicles, we recommend adding our cloning service as a bundle.
For American and Japanese cars, we recommend doing a key relearn on-site.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566







Chase Miles –
Super quick shipping and the ECU was truly plug-and-play. Saved me a bundle versus dealer prices and the installation was a breeze.
Brian Keller –
I purchased the 56044419AE ECM for my 2004 Jeep Wrangler and was really impressed with how quickly it arrived. The unit was already VIN programmed and truly plug-and-play, so I had it installed without any issues. This service saved me a ton compared to dealer prices, and the communication throughout the process was excellent. Overall, a smooth experience from ordering to installation.
Nicholas Graham –
The ECU arrived quickly with free shipping, and the pre-programmed setup made installation a breeze—definitely recommend.