ECU Simulator is a diagnostics data configuration tool which is used for Diagnostics Services Validation in the ECU. Dummy data can be fed in the tool for positive and negative responses and based on ECU response the diagnostics service can be validated. It is best suited when no physical ECU available. Supports Data file creation based on standards. Ready to use scripts for ECU data insertion and manipulation. The tool provides a convenient and cost-effective way to test engine control systems without having to use a real vehicle, which can be time-consuming and expensive.