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 for a true plug-and-play installation with our cloning service.
Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
Every ECU is inspected, refreshed, and verified through advanced diagnostic tools. Testing includes:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS require key programming after installation. This is normal.
For a 100% plug-and-play solution, we recommend using our full cloning service. We transfer all security data to the replacement unit.
A prepaid shipping label will be emailed to you. Allow you to mail in your original computer to us for full cloning.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
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.