Entry Interior Alarm Does Not Sound

THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function): Entry Interior Alarm does not Sound
- Entry Interior Alarm does not Sound

DESCRIPTION

The smart key system (for Entry Function) uses the buzzer in the combination meter assembly 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.

INSPECTION PROCEDURE

NOTICE:
* The smart key system (for Entry Function) uses a multiplex communication system (LIN communication system) and the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting How To Proceed With Troubleshooting. Troubleshoot the smart key system (for Entry Function) after confirming that the communication systems are functioning properly.
* Before replacing the certification ECU (smart key ECU assembly), refer to the smart key system (for Entry Function) Smart Key System (for Entry Function).

PROCEDURE

1. CHECK COMBINATION METER ASSEMBLY (OPERATION)

(a) Check that the key reminder warning buzzer sounds Smart Key System (for Entry Function).

OK:

Combination meter buzzer sounds.

NG -- Go to METER / GAUGE SYSTEM Problem Symptoms Table

OK -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Removal