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Toyota Lexus Reprogramming Calibration CUW Tool

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Toyota Lexus Reprogramming Calibration CUW Tool

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Toyota Lexus Reprogramming Calibration CUW Tool

Toyota-Lexus-Reprogramming-Calibration-CUW.jpg.64980fc13412a81609c451b9834b2e5b.jpg

Reprogramming the flash memory allows for ECU software updates without replacing the ECU. Flash memory calibration updates for specific vehicle/ECU models are released as field fixes described in separate service bulletins. This bulletin details the Techstream ECU flash memory reprogramming process and describes the use of the Technical Information System (TIS) and Calibration Update Wizard (CUW). Flash memory calibration updates can only be applied to the vehicle/ECU combination for which they are intended. The ECU has internal security that prevents them from being programmed with information from another ECU

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