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
Neil Lewis –
Fast shipping and the unit was truly plug-and-play—saved me a bundle compared to dealer prices. Installation was seamless and the communication was spot on.
Aaron Collins –
I bought the R6044478AD unit for my 2004 Jeep Wrangler, and I couldn’t be happier with how everything turned out. The shipping was surprisingly quick, and when it arrived, the ECM was already VIN programmed and ready to go. Installation was a breeze—just plug-and-play with no complicated setup needed. This saved me a ton of money compared to the dealership quotes, and the whole process was far less stressful. The seller was also very responsive, answering my questions promptly, which made the whole experience smooth from start to finish.
Liam Johnson –
The ECU arrived quickly with free shipping and was already VIN programmed for my 2004 Jeep Wrangler—installation was seamless and hassle-free. Communication was spot on; they answered all my questions promptly, making the whole process smooth.
Aaron Hayes –
I purchased the R6044478AD ECM for my 2004 Jeep Wrangler, and I’m very impressed with the quality and performance. The unit arrived quickly with free shipping, and it was already VIN programmed, making installation straightforward. The seller provided excellent communication throughout the process, promptly answering my questions and keeping me informed. Overall, a hassle-free experience that got my Jeep running smoothly again.
Liam Taylor –
I ordered the R6044478AD ECM for my 2004 Jeep Wrangler, and I couldn’t be happier with how smoothly everything went. The unit arrived quickly, and the free shipping was a nice bonus that saved me some extra costs. What really impressed me was that it came VIN programmed and ready to install, so it was literally plug-and-play. After installation, my Jeep fired up right away with no issues, and I’ve noticed a definite improvement in performance. The whole process was hassle-free, and the quality of the ECM feels top-notch.
Leo Reed –
I was really impressed with how quickly the ECM arrived, and it was truly plug-and-play with no hassle during installation. The updated unit fit perfectly in my 2004 Jeep Wrangler 4.0L and started up right away. Choosing this option saved me a significant amount compared to dealer prices, and the communication from the seller was clear and helpful throughout. Overall, a smooth experience from start to finish.
Joel Tucker –
I was really impressed with how smoothly everything went when I ordered the ECM for my 2004 Jeep Wrangler. The unit arrived quickly, and the fact that it was already VIN programmed saved me a lot of hassle. Their plug-and-play setup meant I could install it without needing a specialist, which was a huge relief. On top of that, the shipping was free and arrived right on time. This made getting my Jeep back on the road way easier than I expected. Overall, excellent quality and service that I’d definitely recommend.