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
Trevor Jenkins –
I was impressed by how quickly the ECM arrived, and the free shipping was a nice bonus. The unit came VIN programmed and ready to install, which saved me a lot of hassle. The quality of the part is excellent, and my LS430 has been running perfectly ever since. Communication was clear throughout the process, and they answered all my questions promptly.
Samuel Rivera –
I was a bit nervous about ordering an ECU online, but this 89661-50781 unit for my 2004 Lexus LS430 arrived quickly and was exactly as described. The best part was that it came VIN programmed, so installation was truly plug-and-play—no extra trips to a mechanic for programming. The shipping cost was reasonable, and it arrived well-packaged and on time. I also appreciated the seller’s prompt responses when I had some questions before purchasing. Overall, a smooth experience that got my LS430 running perfectly again.
Harvey Young –
Received my programmed ECM quickly with free shipping, and it fit perfectly—no hassle at all.
Their communication was spot on, answering all my questions fast, and the plug-and-play setup made installation a breeze.
Great quality part with very reasonable shipping costs; the fast turnaround got my LS430 running smoothly again.
Super impressed by their professional programming service—had my ECM ready to go with zero issues and quick updates throughout.
Fast delivery and excellent customer support helped me get back on the road without any headaches.