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



Chris Rivera –
I was really impressed with how quickly this ECM arrived—shipping was faster than I expected. The unit came fully programmed for my 2004 Jeep Wrangler and installation was straightforward, just plug-and-play with no issues. This saved me a ton compared to dealer prices, and the support team was very responsive when I had questions. Overall, a professional experience that made getting my Jeep back on the road hassle-free.
Jack Smith –
Got my 2004 Jeep Wrangler ECM with VIN programming and it was ready to install right out of the box—super fast shipping and flawless fit. The team was quick to answer my questions, making the whole process smooth and hassle-free.
Nicholas Hudson –
The shipping was super quick, and the ECU was truly plug-and-play—saved me a ton over dealer prices. Installation went smoothly thanks to their clear communication.