Description
2017 Toyota Highlander 3.5L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2017 Toyota Highlander 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




Brandon Sanders –
I was a bit nervous about replacing the ECM on my 2017 Highlander, but this VIN programmed unit made everything so simple. It literally was plug and play, and my vehicle fired up without a hitch. The shipping was impressively quick, arriving sooner than I expected, which made the whole repair process stress-free. I also appreciated the helpful tech support team who answered a couple of my questions promptly. Overall, this was a seamless experience, and my Highlander runs perfectly now. Highly recommend for anyone needing a reliable replacement!
Oliver Baker –
Installed the ECM in my 2017 Highlander with zero hassle—worked perfectly right out of the box. Super fast shipping, highly recommend!
Adam Adams –
I was really impressed with how seamless the installation process was for this ECM. It arrived quickly and came already programmed to my vehicle’s VIN, which saved me a lot of hassle. After swapping it in, my Highlander started up perfectly with no error codes or issues. The whole experience felt very professional and hassle-free.