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



Henry Morris –
Received my programmed ECM for the 2005 Jeep Wrangler quickly and installation was straightforward with their plug-and-play setup. The shipping was fast and free, which was a nice bonus.
Cole Phillips –
Shipping was super fast, and the ECM arrived ready to plug and play—saved me a ton versus dealer prices. Installation went smoothly, and their communication was top-notch throughout.
Jonah Page –
I purchased the 56044542AD ECM for my 2005 Jeep Wrangler and was really impressed with how smooth the entire process was. The unit arrived quickly, and the shipping cost was very reasonable, which was a nice surprise. They also programmed the ECU to my VIN before shipping, so installation was completely plug-and-play. Overall, a great experience and my Jeep runs perfectly now.
Gavin Anderson –
I was really impressed with how quickly the ECM arrived after I placed my order. The unit came fully programmed to my Jeep’s VIN and was truly plug-and-play, which made the installation process straightforward and hassle-free. I was worried about the cost, but this service saved me a huge amount compared to the dealer’s quote. The communication throughout was clear and professional, which gave me confidence in the purchase. Overall, the whole experience was smooth from start to finish, and my Wrangler runs perfectly now. I’d definitely recommend this to anyone looking for a reliable replacement ECM.
Frank Brown –
I was really impressed with how quickly the 56044542AD ECM arrived—fast shipping made the whole process so easy. The unit was fully VIN programmed and truly plug-and-play, which saved me the headache of complicated setups. Installing it was smooth, and compared to the dealer’s price, I saved a significant amount. Plus, the customer service was very responsive, making the entire experience hassle-free.