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




Cole Campbell –
Received my programmed ECM quickly with free shipping—installation was seamless, and my Jeep runs like new again. Absolutely impressed with their fast communication and professional service.
Lucas Parker –
I was impressed with how quickly the ECM arrived after ordering, definitely faster than I expected. The unit was already programmed for my 2005 Jeep Wrangler, making the installation straightforward and hassle-free. This saved me a significant amount compared to dealer pricing, and the clear communication from the seller made the entire process smooth. I highly recommend this service for anyone needing a reliable replacement.
Miguel Reed –
I purchased the 56044531AC ECU for my 2005 Jeep Wrangler, and I’m really impressed with the quality. The unit arrived quickly with free shipping, which was a great bonus. The plug-and-play programming made installation straightforward, and my Jeep fired up right away without any issues. The whole process was smooth, and I would definitely buy from this seller again.
Ian Douglas –
I was a bit nervous ordering an ECM online, but this 56044531AC for my 2005 Jeep Wrangler fit perfectly and the VIN programming was spot on. The plug-and-play setup made installation so easy that I had my Jeep running smoothly in no time. Shipping was incredibly fast and free, which was a great bonus since I needed the part quickly. Whenever I had questions, their customer service responded promptly and kept me updated throughout the entire process. Overall, this was a hassle-free experience with a quality product that restored my Jeep’s performance perfectly.
Scott Miles –
The shipping arrived super fast, and this ECM was truly plug-and-play. Saved me a bundle compared to dealer prices and installation was seamless.
Quick shipping and a perfect fit for my 2005 Jeep Wrangler. Plug-and-play made the swap easy, and the savings versus the dealership were huge.
Got my unit fast and it worked right out of the box—no hassle. The money I saved over dealer repair was well worth it, plus the professional service was impressive.
Fast shipping and straightforward installation made this ECM swap a breeze. Great value that saved me a ton compared to dealer quotes.
The unit came quickly and was exactly as described, plug-and-play straight out of the package. This service saved me serious cash compared to dealer pricing.