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



Carlos Miles –
I ordered the 56044433AD ECM for my 2004 Jeep Wrangler and was really impressed with how smoothly everything went. The unit arrived quickly with free shipping, which was a great bonus. They also handled the VIN programming for me, so it was truly plug-and-play—no hassle at all. Customer service was excellent too; they answered my questions promptly and kept me informed throughout the process.
Jordan Hill –
Fast shipping and a true plug-and-play unit that saved me a bundle over dealer prices. Installation was smooth and the customer support was top-notch.
Travis Cooper –
I was really impressed with how smoothly everything went from start to finish. The ECU arrived quickly, and it was already VIN programmed, so installation was a breeze—really a true plug-and-play experience. I had a few questions before ordering, and their team responded promptly and clearly, which gave me a lot of confidence. Shipping was free too, which was a nice bonus. My Wrangler is running better than ever, and I couldn’t be happier with the quality of this unit.
Scott Miller –
The ECM arrived quickly with free shipping and was already programmed perfectly for my 2004 Jeep Wrangler—easy plug-and-play installation. Communication was spot on, answering all my questions right away.
Jack Russell –
I ordered the 56044433AD ECM for my 2004 Jeep Wrangler and was really impressed with how quickly it arrived. The unit was truly plug-and-play, making installation straightforward without any complications. Compared to dealer prices, this service saved me a significant amount of money, and the team’s communication throughout the process was clear and professional. Overall, it was a smooth experience from start to finish.