Description
2004 Lexus LS430 4.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Lexus LS430 4.3L 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 Edwards –
The ECU arrived quickly with free shipping, and the plug-and-play setup was flawless—my LS430 runs perfectly now.
Edward Reynolds –
I purchased the 2004 Lexus LS430 ECM and was very impressed with how smoothly the whole process went. The unit arrived quickly with free shipping, and it was already VIN programmed, which made installation straightforward. The team also stayed in touch throughout, answering all my questions promptly. Overall, great quality and excellent customer care.
Logan Ward –
I was really impressed with the service I received for the 89661-5069384 ECU for my 2004 Lexus LS430. The unit arrived quickly, and the best part was that it came already VIN programmed, so installation was straightforward with no extra hassle. The seller kept me updated throughout the entire process, answering my questions promptly, which gave me a lot of confidence. Shipping was free and arrived exactly on time, which made the whole experience even better. My car runs perfectly now, and I couldn’t be happier with the quality and professionalism.