Toyolex 4 – Toyota Lexus Immo OFF/ON & Key Reset Software

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. 

This product is a diagnostic software compatible with Toyota and Lexus vehicles. It is not affiliated with or endorsed by Toyota Motor Corporation. Brand names are used solely for compatibility and identification purposes.