Tone Alarm

GENERAL DESCRIPTION CONCERNING THE TONE ALARM

The tone alarm functions are as follows. These functions are controlled by relevant ECUs.






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 to indicate that the ignition key has not been removed.

Light reminder tone alarm function





When the taillights or headlights is the ON position, if the ignition key is removed and the driver's door is opened, a tone alarm will sound continuously to warn that the lights are on. However, if the taillights or headlights have been turned off by the headlight automatic-shutoff function, the tone alarm will not sound.

Seat belt tone alarm function









If any of the following conditions is met with the ignition switch at "ON" or "ST," the ETACS-ECU sounds the tone alarm by using the driver's seat belt switch signal and the vehicle speed signal sent from the combination meter.

- Sounds the tone alarm for six seconds when the ignition switch is turned "ON" with the seat belt switch on (the driver's seat belt is not fastened). This is called "Timer function".
- Sounds the tone alarm 12 cycles (after 0.5 second) if any of the following conditions is met when sixty seconds or more have elapsed since the ignition switch is turned "ON." One cycle consists of five-second "on" and then three-second "off."
1. The vehicle speed has reached 8 km/h (5 mph) while the seat belt switch is turned on (driver's seat belt is not fastened) with the ignition switch "ON."
2. The seat belt switch has been turned on (driver's seat belt has not been fastened) for at least ten seconds while the ignition switch has been turned "ON" and the vehicle speed has been 8 km/h (5 mph) or more.
NOTE:
Once the tone alarm has sounded 12 cycles, it does not sound again until the vehicle speed reduces to 3 km/h (2 mph) or less even if any of the following conditions is met.

- The tone alarm stops sounding if the ignition switch or the seat belt switch is turned off (the driver's seat belt is fastened) while the timer operation is active.


Door ajar warning buzzer

The buzzer is sounded 4 times by the ETACS-ECU to warn the driver if any door is open when the ignition is switched "ON" and the vehicle speed reaches 8 km/h (5 mph) or faster. The buzzer will continue to sound for 4 times even if the ignition, door status, or vehicle speed requirements are not maintained.

NOTE:
The warning buzzer can be customized on vehicles equipped with a multi-center display
(middle-grade type). Refer to Adjustments.

Multi-center display operation tone [Mitsubishi Multi Communication System]

The ETACS-ECU sounds the buzzer when the buzzer signal is sent from the multi-center display.

Turn-signal light buzzer

The ETACS-ECU sounds the buzzer in sync with the turn-signal lights or hazard warning lights.

NOTE:
The turn-signal light buzzer can be customized on vehicles equipped with a multi-center display (middle-grade type). Refer to Adjustments.

General circuit diagram for ignition key reminder tone alarm function





General circuit diagram for light reminder tone alarm function





General circuit diagram for seat belt tone alarm function