SMART ENTRY AND START SYSTEM Entry Answer-back Buzzer does not Sound

DESCRIPTION

The smart entry and start uses the wireless door lock buzzer to perform various vehicle exterior warnings. When the conditions for each warning are met, the certification ECU (smart key ECU assembly) sends a buzzer signal to the wireless door lock buzzer, and the wireless door lock buzzer sounds.

Tech Tips

for RHD only

INSPECTION PROCEDURE

Note

Before performing the inspection, check that there are no problems related to "CAN COMMUNICATION SYSTEM" and "LIN COMMUNICATION SYSTEM".

PROCEDURE


  1. CHECK WIRELESS DOOR LOCK BUZZER OPERATION


    1. When the wireless operation is used to lock or unlock the doors, check that the wireless door lock buzzer sounds normally.

      OK
      Wireless door lock buzzer sounds.

    NG

    GO TO WIRELESS DOOR LOCK CONTROL SYSTEM Click here

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)