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



Cameron Barrett –
Arrived quickly and was truly plug-and-play, saving me a ton compared to dealer pricing. Installation was a breeze and the communication was spot on.
Steven Anderson –
Arrived quickly with free shipping and worked perfectly on my 2005 Jeep Wrangler right out of the box. Excellent communication throughout the process made this an easy purchase.
Sean Page –
I had an issue with my 2005 Jeep Wrangler’s ECM and was worried about the hassle of finding a replacement. This unit came already VIN programmed, which made installation a breeze—just plug and play. The shipping was surprisingly quick and free, which was a great bonus. Throughout the process, the team kept me informed every step of the way and answered all my questions promptly. After swapping it in, my Jeep runs like new again, and I couldn’t be happier with the quality and service.
Carlos Murray –
The 56044542AB ECM for my 2005 Jeep Wrangler arrived quickly with free shipping, which was a nice bonus. The unit was already VIN programmed, so installation was straightforward and hassle-free. Customer support was very responsive, answering all my questions promptly. Overall, the process was smooth, and my Jeep runs perfectly now.