LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2012 >> Prius Three >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Key System (For Entry Function) (Except Plug-In)) (Diagnostic Codes & Symptom Tests) >> SMART KEY SYSTEM (for Entry Function) >> Symptom Tests >> Entry Answer-back Buzzer does not Sound >> Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Entry Answer-back Buzzer does not Sound: Description

The smart key system uses the wireless door lock buzzer assembly to perform various vehicle exterior warnings. When the conditions for each warning are met, the certification ECU (smart key ECU assembly) sends a buzzer request signal to the main body ECU (multiplex network body ECU) via CAN communication. The wireless door lock assembly sounds the buzzer according to the signal from the main body ECU (multiplex network body ECU).