Description
2004 Infiniti QX56 5.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Infiniti QX56 5.6L 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



Nicholas Ramirez –
I was really impressed with the quick turnaround time and the fact that the ECU arrived already VIN programmed, which made installation straightforward. The quality of the part is top-notch, and it worked perfectly with my 2004 Infiniti QX56 right out of the box. Shipping was also very reasonable, which made the whole process even better. Their team answered all my questions promptly, keeping me informed every step of the way.
Carlos Richardson –
Received my 2004 Infiniti QX56 ECM fully VIN programmed and ready to go, and the free shipping was a great bonus. Their communication was spot on, answered all my questions quickly.
Jorge Ward –
I was really impressed with how smooth the entire process was purchasing the 23710-7S020 ECM for my 2004 Infiniti QX56. The unit arrived quickly, and the best part was that it came VIN programmed and ready to install, which saved me a lot of hassle. Their team was super helpful and answered all my questions promptly, making me feel confident about the purchase. Shipping was reasonable and arrived in perfect condition. After installation, my truck runs like new again—definitely worth it!