Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001BHXV
Model Year Start: 2019 Model: Avalon HV Prod Date Range: [04/2018 -           ]
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): Entry Interior Alarm does not Sound; 2019 - 2022 MY Avalon HV [04/2018 -        ]

Entry Interior Alarm does not Sound

DESCRIPTION

The smart key system (for Entry Function, HV Model) 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.

CAUTION / NOTICE / HINT

NOTICE:

  • The smart key system (for Entry Function, HV Model) uses the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Entry Function, HV Model) after confirming that the communication systems are functioning properly.

    Click here 2019 - 2021 MY Avalon HV [04/2018 - 08/2021]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): PRECAUTION 2022 MY Avalon HV [08/2021 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): PRECAUTION

  • When using the Techstream with the power switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.

    Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

  • After repair, confirm that no DTCs are output.

PROCEDURE

1.

CHECK ENTRY LOCK OPERATION

(a) Check that the function operates normally.

Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): OPERATION CHECK

Result

Proceed to

Entry function operates normally

A

Entry function does not operate normally

B
A

GO TO METER / GAUGE SYSTEM

B

GO TO OTHER PROBLEM