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
Jose Rogers –
I’m really happy with this 56044478AB ECM for my 2004 Jeep Wrangler. The unit arrived quickly and was truly plug-and-play, making the installation straightforward without any hassle. It saved me a ton compared to dealer prices, and the team’s communication was clear throughout the process. Overall, a smooth experience from start to finish.
Paul Richardson –
The ECU arrived quickly and was truly plug-and-play, making installation hassle-free. Great value that saved me a bundle compared to dealer prices.
Fast shipping and flawless fit on my 2004 Jeep Wrangler 4.0L ECM; installation went smoothly. Their professional service definitely cut costs versus taking it to the dealership.
Super quick delivery and the module worked instantly with no tuning needed. This saved me so much money over dealer repairs and the communication was spot on.
Received the unit fast and it popped right in with zero issues. Really appreciated the quick turnaround and affordable price compared to dealer charges.
Shipping was speedy and the ECU was ready to go right out of the box. Installing it was a breeze, and I saved a lot of cash by avoiding the dealer.
Trevor Stewart –
I bought the 56044478AB ECM for my 2004 Jeep Wrangler and was pleasantly surprised by how easy the whole process was. The unit arrived quickly with free shipping, which was a nice bonus. They also took care of all the VIN programming for me, so it was truly plug-and-play—no hassle at all. The Jeep runs smoothly now, and I’m really happy with the quality and service.
Cooper Cox –
I was really impressed with how smoothly everything went when I ordered the ECM for my 2004 Jeep Wrangler. The unit arrived quickly with free shipping, which was a nice bonus. What stood out most was that it came VIN programmed and ready to install—no extra hassle or trips to the mechanic needed. The quality of the part feels very solid, and my Jeep runs like new again. They also kept me informed throughout the process, which gave me confidence in the purchase. Overall, a five-star experience from start to finish.
Noah Richardson –
I was nervous about ordering an ECM online, but this 2004 Jeep Wrangler ECM arrived quickly with free shipping and was exactly as described. The best part was that it came VIN programmed, so it was truly a plug-and-play replacement. Installation was straightforward and my Jeep fired right up without any issues. Throughout the process, the seller kept me informed and answered all my questions promptly, which made the whole experience stress-free. I highly recommend this service to anyone needing a reliable ECM for their Wrangler.
Caleb Peterson –
The ECU arrived quickly with free shipping, and the plug-and-play setup was exactly as promised—super easy and hassle-free.
Harvey Anderson –
I was really impressed with how quickly this ECM arrived after I placed the order—shipping was definitely faster than I expected. Installing the unit was a breeze since it came already programmed for my 2004 Jeep Wrangler; it really was plug-and-play with no headaches. The Jeep fired up right away, and I could tell everything was running smoothly. Compared to the dealer quote, I saved a huge amount of money by going this route, which made the whole experience even better. The seller kept me updated throughout the process, which helped me feel confident about the purchase. Overall, a great product and service that I would recommend to anyone in need of ECU replacement.