June 12, 2014 Service bulletin

Flash reprogramming allows the ECU software to be updated without replacing the ECU. Flash calibration...

Toyota technical service bulletin T-SB-0012-13 Rev for 2001-2015 Toyota Camry, 2001-2015 Toyota Prius and 2001-2015 Toyota Corolla and others.

Bulletin number: T-SB-0012-13 Rev
Component: Electrical system: software
Summary: TSB: Flash reprogramming allows the ECU software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Techstream ECU flash reprogramming process and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard (CUW). Flash calibration updates can only be applied to the vehicle/ECU combination for which they are intended. ECUs have internal security that will not allow them to be programmed with another ECU?s information.

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