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
Liam Bell –
Fast shipping and the plug-and-play unit worked perfectly—saved me a bundle compared to dealer prices. Installation was straightforward and the whole process was hassle-free.
Cole Chapman –
I was a bit nervous about ordering an ECM online, but this 56044478AA for my 2004 Jeep Wrangler came exactly as described and was already VIN programmed, which made installation a breeze. The whole process was smooth because they offer a plug-and-play setup, so I didn’t have to worry about any complicated programming steps. Shipping was surprisingly fast and very affordable, which was a huge plus. I also appreciated the team’s quick responses whenever I had a question. Overall, the Jeep runs perfectly now, and I’m really glad I found this service.
Owen Nichols –
Received my programmed ECM quickly with free shipping, and it fit perfectly—no issues at all. The whole process was smooth and hassle-free.
Victor Marshall –
I’m really impressed with the quality of the 56044478AA ECM I received for my 2004 Jeep Wrangler. The plug-and-play setup made the installation straightforward, and it came VIN programmed, so I didn’t have to worry about any additional steps. Shipping was reasonably priced and arrived quicker than expected. The engine runs smoothly now, and I appreciate the professional service behind this product.
Nathan Cooper –
I was impressed with how quickly this ECM arrived—shipping was definitely faster than I expected. The unit came fully programmed for my 2004 Jeep Wrangler and was truly plug-and-play, making installation straightforward and hassle-free. Choosing this over a dealer replacement saved me a significant amount of money, and the communication from the seller was clear and professional throughout the process. Overall, a great experience that got my Jeep back on the road without any delays.
Brandon Baker –
I was really worried about my 2004 Jeep Wrangler’s ECM failing, but this unit arrived way faster than I expected. The VIN was already programmed, so installation was a breeze—just plug and play. It worked perfectly right from the start, and I’m thrilled because it saved me a ton of money compared to dealership prices. The seller kept me updated throughout the process, which made everything stress-free. Overall, this purchase gave me peace of mind without the hassle or expense I was bracing for.