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




Gavin Gray –
The shipping arrived quickly, and the plug-and-play unit was perfect—saved me a bundle versus the dealer. Installation was a breeze, and the team’s communication was spot on.
Cameron Hill –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2005 Jeep Wrangler—installation was a breeze.
Excellent communication throughout the process and the plug-and-play setup got my Jeep running smoothly again in no time.
Fast turnaround and the unit fit exactly as described; the team answered all my questions promptly, which made the whole experience stress-free.
Shipping was affordable and the programming was spot-on, saved me a ton of hassle getting it to work right.
Super professional service with a quick response to my inquiries—this ECM was ready to go right out of the box.
Marcus Cooper –
The 56044543AK ECM for my 2005 Jeep Wrangler arrived quickly and was completely plug-and-play, making installation straightforward. I was impressed by how much money I saved compared to dealer pricing, and the communication from the seller was clear and helpful throughout. Everything worked flawlessly from the start, and the whole process was smooth with a fast turnaround. Definitely a great purchase for anyone needing a reliable replacement module.