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




Liam Douglas –
I ordered the 56044529AB ECM for my 2005 Jeep Wrangler and was really impressed with the entire process. The unit came VIN programmed, so installation was straightforward and completely plug-and-play. Shipping was very reasonable and arrived quicker than I expected. The quality feels solid, and the Jeep runs smoother than before—definitely a great buy.
Nathan Lewis –
Great service with fast turnaround and the ECU arrived VIN programmed and ready to install—plus the free shipping was a nice bonus.
Adrian Burton –
The 56044529AB ECM arrived quickly and was exactly as described. Installation was straightforward since the unit came fully programmed and ready to plug in, which made the whole process hassle-free. Opting for this ECU saved me a significant amount compared to dealer prices, and the seller’s communication throughout was very helpful. Overall, a smooth experience from order to installation.
Max Graham –
Arrived super fast and was truly plug-and-play. The price crushed dealer quotes, and the install went without a hitch.