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



Matthew Stewart –
I was really impressed with how quickly the 56044539AH ECM arrived, especially with their free shipping option. The module came VIN programmed and ready to install, which saved me a lot of time and hassle. The match was perfect for my 2005 Jeep Wrangler 4.0L, and everything fired up immediately. Communication was clear throughout the process, and they answered all my questions promptly.
Bruce Bates –
The ECU arrived quickly with free shipping, and the plug-and-play programming made installation a breeze. Excellent service all around!
James Perez –
I was really impressed with how smoothly everything went from start to finish. The ECM arrived quickly, and it was already VIN programmed, which saved me a ton of time and hassle. What stood out most was their excellent communication—they kept me updated every step of the way and answered my questions promptly. Installation was straightforward, and my 2005 Jeep Wrangler runs better than ever now. Definitely recommend this product and service if you want a hassle-free repair.
Shane Webb –
I was nervous about ordering a replacement ECM for my 2005 Jeep Wrangler, but this part arrived quickly and was exactly as described. The best part was that it came VIN programmed, so I didn’t have to worry about any complicated setup. The shipping was super reasonable and it showed up ahead of schedule, which was a nice surprise. Their customer service was really helpful too—they answered all my questions promptly and kept me updated throughout the process. My Jeep is running perfectly now, and I couldn’t be happier with the whole experience.