Description
2005 Jeep Wrangler 4.0L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2005 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



Eric Page –
Super fast shipping and the ECU was truly plug-and-play. Saved me a bundle compared to the dealer, and the install was a breeze.
Mason Marshall –
The 56044542AJ ECM for my 2005 Jeep Wrangler arrived quickly and was ready to install right out of the box. It was truly plug-and-play, making the replacement process straightforward and hassle-free. The price was significantly lower than going through the dealer, which saved me a good amount of money. Communication from the seller was clear, and the whole experience felt very professional.
Elijah Scott –
I was really impressed with how smoothly everything went from start to finish. The 56044542AJ ECM arrived quickly, and it was already VIN programmed, which saved me a ton of time and hassle. The shipping was surprisingly affordable considering the size and nature of the part. When I had a couple of questions about installation, their team responded promptly and helped me feel confident about the process. Since installing the unit, my 2005 Jeep Wrangler runs better than ever, and I couldn’t be happier with the quality and service. Highly recommend this seller for anyone needing a replacement ECU.
Jonah Lewis –
The ECM arrived quickly with free shipping and was perfectly programmed for my 2005 Jeep Wrangler—installation was a breeze. Customer service was responsive and kept me informed throughout the process.
Luke Webb –
I was really impressed with how smoothly this 56044542AJ ECM fit my 2005 Jeep Wrangler. The unit arrived quickly with free shipping, which was a nice bonus. What stood out most was the professional programming service—they made sure my VIN was perfectly matched so the install was truly plug-and-play. Communication was clear throughout the process, and I felt confident I was getting quality support.