Description
2020 Lexus LS500 3.5L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2020 Lexus LS500 3.5L models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with no dealer visit required.
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:
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Complete communication & CAN-bus verification
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Sensor input/output and signal integrity checks
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Injector & ignition pulse simulation
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Power, ground, and load-circuit analysis
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Flash memory integrity and checksum validation
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Thermal and voltage-stress testing to confirm reliability
This ensures a fully functional, reliable, plug-and-play module you can install with confidence.
Important Note
Some vehicles equipped with IMMO (Immobilizer) or PATS (Passive Anti-Theft System) may require additional key programming after installation. This is normal for models where security data must be synchronized with the vehicle’s body control system.
For a 100% plug-and-play solution with no relearns, no key programming, and no compatibility issues, we recommend our ECU Cloning Service, which transfers all original security, immobilizer, and configuration data directly into the replacement unit.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566




Isaac Evans –
I was a bit nervous about replacing the ECM on my 2020 Lexus LS500, but this unit arrived quickly and was truly a seamless fit. The fact that it came VIN programmed saved me a huge amount of time and hassle, and installation was straightforward without needing any special tools. After swapping it in, my car fired right up and runs smoothly now, just like new. I also appreciated how responsive the support team was when I had a couple of questions before buying. This purchase definitely gave me peace of mind and got me back on the road without any headaches.
Elijah Bell –
The ECM arrived quickly and was exactly as described, perfectly programmed to my Lexus LS500’s VIN. Installation was straightforward, and the plug-and-play design made the whole process hassle-free. Since swapping it out, the car runs flawlessly with no error codes or warning lights. Definitely a reliable and professional product that saved me a lot of time and stress.
Henry Brooks –
Perfect fit for my 2020 Lexus LS500—installed quickly with zero hassle and runs flawlessly. Shipping was surprisingly fast too!