Description
2019 Toyota Highlander 3.5L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2019 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
Cameron Mitchell –
I recently replaced the ECM on my 2019 Toyota Highlander with this VIN programmed unit, and I couldn’t be happier with how smoothly everything went. The installation was surprisingly straightforward—just a direct swap with no extra programming needed on my end. I was a bit worried about compatibility, but this part fit perfectly and got my engine running like new again. The shipping was quick, arriving well before I expected, which helped me avoid any extended downtime. Overall, a great purchase that saved me a lot of hassle and money compared to dealership repairs.
Jordan Kelly –
I recently replaced the ECM on my 2019 Toyota Highlander with this unit, and it worked flawlessly right out of the box. The VIN programming was spot-on, so there was no hassle during installation. I appreciated how quickly it arrived and the clear instructions that made the swap straightforward. Overall, it’s a reliable, high-quality part that restored my vehicle’s performance perfectly.
Brandon Moore –
Perfect fit for my 2019 Highlander, arrived quickly and worked immediately with zero hassle. Highly recommend!