Description
2004 Infiniti FX45 4.5L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Infiniti FX45 4.5L 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
Austin Sharp –
I was really impressed with how smoothly the process went from start to finish. The 2004 Infiniti FX45 ECM came VIN programmed and ready to install, which saved me a lot of hassle. Shipping was surprisingly fast and affordable, arriving well within the timeframe they promised. I also appreciated how they kept me in the loop with updates on my order status. After swapping it in, my car has been running flawlessly, so I’m very happy with the quality and service overall.
Jack Little –
I was nervous about buying an ECU online for my 2004 Infiniti FX45, but this purchase turned out great. The unit arrived faster than I expected, and the free shipping was a nice bonus. What really impressed me was the plug-and-play setup—they had already programmed it to my VIN, so installation was straightforward with no hiccups. The engine is running smoothly again, and I didn’t have to deal with complicated coding myself. Overall, a hassle-free experience with quality parts and service.
Connor Cox –
Great quality ECM with fast, free shipping and perfect VIN programming—car started right up with no issues.
Aiden Palmer –
I was really impressed with how smoothly the entire process went. The ECU arrived quickly with free shipping, and it came already VIN programmed, which made installation effortless. The quality feels top-notch, and I had no trouble getting my FX45 back on the road in no time. Customer support was also very helpful, promptly answering my questions about compatibility.