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




Cooper Young –
Fast shipping and a plug-and-play unit made installation a breeze, saving me a ton compared to dealer prices. The whole process was smooth and professional from start to finish.
Patrick Gonzalez –
I ordered the R6044529AC for my 2005 Jeep Wrangler, and I’m really impressed with how smoothly everything went. The ECU arrived quickly with free shipping, which was a nice bonus. The unit was already VIN programmed, so installation was a breeze—just plug and play. Customer service was also great, answering my questions promptly and keeping me informed throughout the process.
Ian Hill –
I was really impressed with how quickly the ECM arrived after I placed my order—fast shipping made all the difference. The unit was fully VIN programmed and truly plug-and-play, which made installation straightforward and hassle-free. This service saved me quite a bit compared to dealer prices, and their team was very responsive when I had questions. Overall, a smooth experience from start to finish.
Cameron Hayes –
The free shipping was a nice bonus, and the ECU arrived pre-programmed and ready to install—saved me a lot of hassle. Communication was spot on, they answered all my questions right away.