Toyota Corolla Cross: M20a-fks (battery / Charging)

 Disassembly

DISASSEMBLY CAUTION / NOTICE / HINT COMPONENTS (DISASSEMBLY) Procedure Part Name Code 1 FRONT CENTER ULTRASONIC SENSOR 89341L - - - 2 FRONT CORNER ULTRASONIC SENSOR 89341K - - - 3 FRONT CENTER ULTRASONIC SENSOR RETAINER

 Entry Exterior Alarm and Answer-back Buzzer do not Sound

DESCRIPTION The smart key system (for Entry Function) uses the wireless buzzer to perform various vehicle exterior warnings. When the conditions of each warning are met, the certification ECU (smart key ECU assembly) sends a buzzer activation request signal to the main body ECU (multiplex network bo