Audible Warning Device: Description and Operation

GENERAL DESCRIPTION THE CONCERNING TONE ALARM







The ECU related to the alarm function types and various control functions are as above.







Ignition key reminder tone alarm function
When the driver's door is opened with the ignition key inserted in the ignition key cylinder (ignition switch is in the OFF position,) the tone alarm sounds intermittently (horning sound) to indicate that the ignition key has not been removed.

The ignition key reminder tone alarm will sound under the given condition, and warn the driver to remove the ignition key.








Light reminder tone alarm function
When the taillight or headlight is ON, if the ignition key is removed and the driver's door is opened, a tone alarm will sound continuously to warn that the light is illuminated. However, if the taillight or headlight has been turned off by the headlight automatic-shutdown function, the tone alarm will not sound.







Seat belt tone alarm function
When the ignition switch is turned to ON position without fastening the driver's seat belt (driver's seat belt switch off), the tone alarm will sound for approximately six seconds to warn the driver to fasten the seat belt. When the driver's seat belt are fastened or ignition switch is turned to OFF position, the tone alarm will stop sounding.

General Circuit Diagram For The Ignition Key Reminder Tone Alarm Function:

General Circuit Diagram For The Light Reminder Tone Alarm Function:

General Circuit Diagram For The Seat Belt Tone Alarm Function:

General Circuit Diagram For The Ignition Key Tone Alarm Function