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All digital products include everything you need to get started: download files, setup steps, and clear instructions. From diagnostics to ECU/IMMO tools, install with confidence and get your system ready quickly.
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Toyolex 4 is a professional-grade software tool for managing immobilizers in Toyota and Lexus vehicles. Designed for advanced users and auto technicians, this software enables full control over Denso-based ECU systems, including immobilizer deactivation, key resets, and ECU unlocking. Ideal for workshops, coding specialists, and auto security professionals.
Main Features:
• Full Immobilizer Management – Enable or disable immobilizers with high accuracy
• Key Reset and ECU Repair – Restore key functionality and fix immo-related ECU issues
• Compatible with Denso ECUs:
– Generation 3: R7F701202, R7F701216
– Generation 2: D76F0199GD, D76F0196F1, D76F0219F1
– Generation 1: NEC 76F00XX (early versions only)
• OBD II Access – Perform operations without opening the ECU
• Binary File Compatibility – Works with dump files from any Denso ECU extraction tool
• Fault Code Auto-Clearing – Automatically removes DTCs during reset
• Tested on multiple Toyota and Lexus models – Works with mechanical keys and smart-key systems
Limitations:
• Not suitable for hybrid ECUs or brand-new unprogrammed ECUs
• Will not work with ECUs previously locked by faulty programming
System Requirements:
• Windows 7, 10, or 11
• Denso ECU access tool or dump file reader
• Intermediate to advanced knowledge of ECU operations
Delivery Format:
• Instant secure digital download link
Why Choose Toyolex 4:
• Avoid unnecessary ECU replacement
• Compatible with a wide range of Toyota/Lexus models
• Professional tool trusted by repair centers
Note: Digital product only. No refunds for incompatible systems.
The Toyota, Lexus and Denso names, marks and designs are trademark and / or registered trademark of their respective owners in the United States and other countries. ProDiagTools, this site and its content are not affiliated with or endorsed by Toyota Motor Corporation, Lexus or Denso. All products offered on this website are aftermarket products and not made by Toyota Motor Corporation, Lexus, Denso or their partners or affiliates. All other companies, products, or names referenced on this Web site are used for identification purposes only and may be trademarks of their respective owners. It is neither inferred nor implied that any item sold by ProDiagTools, is a product authorized by or in any way connected with Toyota Motor Corporation, Lexus or Denso.
