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



Neil Webb –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2005 Jeep Wrangler—installed with zero issues. Great communication from the team kept me informed every step of the way.
Matthew Bell –
I ordered the 56044531AK ECM for my 2005 Jeep Wrangler, and I’m really impressed with the whole process. The unit arrived quickly with free shipping, which was a nice bonus, and it was already VIN programmed, so installation was a breeze. The quality of the part is excellent, and the Jeep runs perfectly now without any engine codes. They also kept me informed throughout the order, which made me feel confident about my purchase.
Owen Douglas –
Fast shipping and a perfect plug-and-play fit for my 2005 Jeep Wrangler. Saved me a bundle compared to dealer prices, and installation was a breeze!
Brandon Green –
I was a bit nervous ordering an ECU online, but this 2005 Jeep Wrangler ECM arrived exactly as described and was already VIN programmed, which saved me a lot of hassle. The plug-and-play setup made installation straightforward, and my Jeep fired up without any issues. I also appreciated the very reasonable shipping cost—didn’t have to break the bank just to get it shipped. The team kept me informed throughout the process, which gave me confidence in what I was buying. Overall, a smooth experience and a solid product.