Description
2020 Lexus RX450h 3.5L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2020 Lexus RX450h 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




Hunter Campbell –
I recently installed this VIN programmed ECM/ECU on my 2020 Lexus RX450h, and I couldn’t be happier with how smoothly everything went. The unit arrived quicker than expected, and it was truly a plug-and-play experience—no complicated setup or extra programming needed on my part. After the swap, the car fired right up and all the functions worked perfectly, just like before. It’s clear this part was made with precision, and it saved me a lot of downtime and hassle. Definitely a smart buy if you want a hassle-free replacement.
Benjamin Murphy –
The ECM arrived quickly and was exactly as described, fully programmed to my Lexus RX450h’s VIN, which made the installation a breeze. I appreciated how it was genuinely plug-and-play—no extra coding or trips to the dealer required. The performance of the vehicle has been flawless since the swap, and it’s clear this is a quality part. Definitely a hassle-free solution for those needing a replacement ECU.
Leo Parker –
Perfect fit for my 2020 RX450h and arrived quickly—installation was seamless with no programming hassle. Highly recommend this ECM!