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
Luis Murray –
I was impressed with how quickly this ECM arrived, especially with the free shipping included. The unit was already VIN programmed, which made installation straightforward and hassle-free. Their customer service was excellent, promptly answering a couple of questions I had before buying. My 2004 Jeep Wrangler is running smoothly again, and I couldn’t be happier with the quality.
Robert Gray –
Got my RL044478AD for my 2004 Jeep Wrangler quickly with free shipping, and it worked perfectly right out of the box. The plug-and-play programming made the install effortless.
Liam Reed –
Super fast shipping and the ECU was truly plug-and-play. Saved me a ton compared to dealer prices and the installation went without a hitch.
Luke Parker –
I ordered the RL044478AD ECM for my 2004 Jeep Wrangler and was really impressed with how quickly it arrived. The unit was perfectly programmed to my VIN and installed without any issues—just plug and play. This solution saved me a ton compared to dealer prices, and the seller kept me updated throughout the entire process. Overall, a very smooth experience from start to finish.