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
Gavin Howard –
The plug-and-play setup was flawless and saved me so much time. Shipping was fast and free, making the whole process super easy.
Jose Cox –
I recently purchased the 89661-50680 ECM for my 2004 Lexus LS430, and the experience was fantastic from start to finish. The unit arrived quickly with free shipping, which was a nice bonus. What really impressed me was how well programmed the ECU was right out of the box—plug and play, no headaches required. I also reached out with a couple of questions, and their team responded promptly, making the whole process smooth and hassle-free. My car runs noticeably better now, and I’m very satisfied with the quality and service.
Spencer Scott –
I purchased the 89661-50680 ECM for my 2004 Lexus LS430 and was impressed by how smoothly the entire process went. The unit arrived quickly with free shipping, and the programming was perfectly matched to my VIN, making installation straightforward. Their team was very responsive and kept me updated throughout, which gave me confidence in their service. Overall, it’s restored my car’s performance exactly as promised.