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
Grant Phillips –
I recently purchased the 89661-4850284 ECM for my 2004 Lexus RX330, and I couldn’t be happier with the experience. The unit arrived quickly, and the shipping cost was very reasonable, which was a nice surprise. What really stood out was how the team handled the VIN programming — it was all done professionally before it shipped, so I just plugged it in and everything worked perfectly right away. They also kept me informed throughout the process, answering my questions promptly and making sure I understood what was going on. This level of service made the whole repair hassle-free, and my Lexus is running smoother than ever. Highly recommend!
Adrian Webb –
I was really impressed with the quality of this ECM for my 2004 Lexus RX330. It came VIN programmed and ready to go, which saved me a lot of hassle during installation. The shipping was incredibly fast and didn’t cost an arm and a leg. What stood out most was how the seller kept me in the loop the entire time—I received updates every step of the way. After swapping it in, my car runs like new again. Definitely a trustworthy source for ECU replacements.
Harrison Rivera –
The ECM arrived quickly with free shipping and was perfectly programmed for my 2004 RX330—installation was a breeze.
Excellent communication throughout the process and the plug-and-play setup saved me so much hassle.
Fast turnaround and the updated ECM works flawlessly, making this a solid purchase for my Lexus.
They answered all my questions promptly and provided professional programming, so I had no issues at all.
Quality repair and very reasonable shipping costs—highly recommend if you need a reliable ECU for your RX330.
Daniel Barrett –
I purchased the 89661-4850284 ECM for my 2004 Lexus RX330 and was very impressed with the seamless plug-and-play setup. The unit arrived quickly with free shipping, which was a nice bonus. The quality of the repair was excellent, and the vehicle started right up without any issues. Communication was also great—they kept me informed every step of the way.