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





Chase Keller –
The ECU arrived quickly with free shipping, and the plug-and-play setup was flawless—my Wrangler runs like new again.
Grant Allen –
I had been struggling with my 2005 Jeep Wrangler’s ECM for weeks, and this replacement unit was exactly what I needed. The VIN programming was already done, so installation was straightforward with no extra hassle. I appreciated how the seller kept me informed throughout the entire process, answering all my questions promptly and professionally. Shipping was also quick and didn’t cost a fortune, which was a relief. After installing it, my Jeep runs smoothly again, and I couldn’t be happier with this purchase.
Jose Parker –
I purchased the 56044526AA ECU for my 2005 Jeep Wrangler, and the whole process was smooth from start to finish. The unit arrived quickly with free shipping, which was a nice surprise. The programming was spot on, and it was essentially plug-and-play—my Jeep started right up without any issues. Customer service was also very responsive and answered all my questions promptly.