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





Ethan Morgan –
I ordered the 56044527AA ECM for my 2005 Jeep Wrangler, and I’m really impressed with the entire experience. The unit arrived quickly with free shipping, which was a nice bonus. What stood out the most was the professional VIN programming service they provided, so it was basically plug-and-play once installed. Communication was clear throughout the process, and they answered my questions promptly, making the whole repair hassle-free.
Chase Parker –
I recently purchased the 56044527AA ECM for my 2005 Jeep Wrangler and couldn’t be happier with how smoothly everything went. The unit arrived quickly with free shipping, which was a nice bonus. What really stood out was the plug-and-play setup—they had it programmed to my VIN before shipping, so installation was straightforward and stress-free. The Jeep runs like new again, and I appreciated the clear communication throughout the process. Definitely a reliable source for quality ECMs.
Dean Tucker –
The plug-and-play setup was flawless, and the free shipping made the whole process super easy. Great service from start to finish!