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
Daniel Wallace –
I’m really happy with this ECM for my 2004 Jeep Wrangler. The unit arrived quickly and was truly plug-and-play, making installation hassle-free. Compared to the dealer’s price, this service saved me a significant amount of money without compromising quality. The communication throughout the process was clear and professional, which gave me confidence in the purchase.
Trevor Edwards –
I was impressed with how quickly this ECM arrived, and the free shipping was a nice bonus. The unit came VIN programmed and ready to install, which saved me a lot of hassle. The quality of the part is excellent, and my Jeep runs better than ever. Customer service was also very responsive when I had a couple of questions before ordering.
Noah Cox –
I was a bit nervous ordering an ECU online, but this unit for my 2004 Jeep Wrangler arrived faster than expected, and it was already VIN programmed, which made installation straightforward. The shipping was free, which was a nice bonus, and the quality of the module is outstanding—my Jeep runs smoothly now with no error codes. I appreciated how the seller answered all my questions promptly when I called to confirm compatibility. Overall, a hassle-free experience that got my Wrangler back on the road quickly. Highly recommend this product if you need a reliable ECM replacement.
Brian Bailey –
Fast shipping and the unit came pre-programmed perfectly for my Jeep—plug-and-play made installation a breeze.
Adrian Cooper –
The 56044477AC arrived quickly and was truly plug-and-play—saved me a bundle versus dealer pricing. Installation was seamless and their communication was top-notch throughout.
Robert Cook –
I was really impressed with how quickly the ECU arrived after I placed my order. It was completely plug-and-play, which made the installation process a breeze—I was back on the road in no time. The best part is how much I saved by going with this unit instead of the dealer’s expensive option. The communication from the seller was clear and helpful, so I felt confident every step of the way. Overall, a fantastic experience and a great value for anyone needing ECU replacement for their 2004 Jeep Wrangler.