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
Nathan Collins –
The ECM arrived quickly and was already VIN programmed, making installation hassle-free. Their communication was spot on, answering all my questions promptly.
Cole Ward –
Fast shipping and the unit was truly plug-and-play. This saved me a ton compared to dealer prices, and installation went without a hitch.
Jack Bailey –
I was a bit nervous about ordering an ECM online for my 2004 Jeep Wrangler, but this unit fit perfectly and came fully programmed to my VIN as promised. The process was straightforward, and I appreciated that they handled all the programming professionally—no extra trips to a mechanic needed. Shipping was surprisingly fast and didn’t cost an arm and a leg, which was a nice bonus. Once installed, my Jeep fired up without a hitch, and I noticed a smoother idle right away. Overall, a great experience from start to finish.
Ryan Taylor –
I ordered the 56044477AB ECM for my 2004 Jeep Wrangler, and the whole process was smooth from start to finish. They provided professional VIN programming service, so it was truly plug-and-play once I received it. Shipping was surprisingly quick and very reasonable, which made the experience even better. Their team also answered my questions promptly, making me feel confident about my purchase.