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Home >> Toyota >> 2019 >> Prius LE AWD-e >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Key System (Keyless Entry) - Symptom Tests >> SMART KEY SYSTEM (for Entry Function) >> Entry Interior Alarm does not Sound [11/2015 - ] >> Description

Entry Interior Alarm does not Sound [11/2015 - ]: Description

The smart key system (for Entry Function) uses the buzzer in the combination meter assembly (meter ECU) to perform various vehicle interior warnings. When the conditions of each warning are met, the certification ECU (smart key ECU assembly) sends a buzzer activation request signal to the combination meter assembly via CAN communication and the buzzer sounds.