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




Oliver Gray –
Shipping was super quick, the unit fit perfectly and was plug-and-play, and I saved a ton compared to dealer prices. Great service and hassle-free installation made this a no-brainer.
Luis Lopez –
I ordered the 56044543AH ECM for my 2005 Jeep Wrangler, and I’m really impressed with the quality and quick delivery. The fact that it came VIN programmed and ready to plug in saved me a ton of hassle. Their team was also very responsive when I had questions about installation, which made the whole process smooth and stress-free. Highly recommend if you want a reliable part and excellent customer service.
Michael Reed –
Great experience from start to finish—fast shipping and the ECU arrived fully programmed, ready to install without any hassle.
Jorge Nichols –
I ordered the 56044543AH ECM for my 2005 Jeep Wrangler, and I’m really impressed with how smooth the process was. The unit arrived quickly with free shipping, which was a pleasant surprise. What stood out most was the professional VIN programming service they provided—my Jeep fired right up with no issues after installation. The communication was excellent too; they kept me informed every step of the way, which made me feel confident about my purchase. Overall, a great experience and a top-quality product.
Nathan Richardson –
I was really impressed with how quickly this ECM arrived after ordering. The unit was fully programmed to my Jeep’s VIN, making installation completely plug-and-play with no issues. The technical support was very clear and helpful, which made the whole process smooth. This saved me a ton compared to the dealer’s price, and my Wrangler is running perfectly now.