Description
2004 Lexus RX330 3.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Lexus RX330 3.3L 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



Jack Allen –
Received my programmed ECU for my 2004 RX330 quickly with free shipping, and it worked perfectly right out of the box. Customer service was responsive and kept me informed throughout the process.
Robert Sanders –
I was impressed with how quickly my 2004 Lexus RX330 ECM arrived, especially with free shipping included. The unit was VIN programmed and ready to install right out of the box, which saved me a lot of hassle. The communication was spot on—they responded to my questions very promptly and kept me informed throughout the process. Overall, a smooth experience and a solid product.