KEY REMINDER WARNING SYSTEM SYSTEM DESCRIPTION

KEY REMINDER WARNING SYSTEM DESCRIPTION
1. When the driver side door is opened while the ignition switch is off and the key is in the ignition key cylinder, or while the ignition switch is ACC, this system causes a buzzer to sound in order to warn the driver that the key has not been removed.

FUNCTION OF MAIN COMPONENT

Component	Function
Front Door Courtesy Light Switch LH1 Front Door Courtesy Light Switch RH2	Detects the driver side door status (open or closed) and outputs a signal to the main body ECU.
Unlock Warning Switch	Detects if the key is inserted into the ignition key cylinder or not and outputs a signal to the main body ECU.
Combination Meter	Receives a buzzer request signal from the main body ECU after the main body ECU receives an ignition switch signal, unlock warning switch signal and front door courtesy light switch LH1 or RH2 signal, and activates the inner circuit to sound the built-in buzzer intermittently.

Component

Function

Front Door Courtesy Light Switch LH*1

Front Door Courtesy Light Switch RH*2

Detects the driver side door status (open or closed) and outputs a signal to the main body ECU.

Unlock Warning Switch

Detects if the key is inserted into the ignition key cylinder or not and outputs a signal to the main body ECU.

Combination Meter

Receives a buzzer request signal from the main body ECU after the main body ECU receives an ignition switch signal, unlock warning switch signal and front door courtesy light switch LH*1 or RH*2 signal, and activates the inner circuit to sound the built-in buzzer intermittently.

*1: for LHD
*2: for RHD