Key Reminder Buzzer Does Not Sound

KEY REMINDER BUZZER DOES NOT SOUND

CIRCUIT DESCRIPTION
When the power switch's power mode is OFF, the key is in the key slot and the driver side door is opened, the transponder key ECU transmits a halfway switch signal and multiplex network body ECU transmits driver side courtesy switch signal to the combination meter, which causes the buzzer to emit a sound.

Wiring Diagram:

Step 1 - 3:

Step 4:

Step 5 - 6:

INSPECTION PROCEDURE