Metro L4-079 1.3L VIN 2 MFI (2001)
Seat Belt Reminder Buzzer: Description and Operation
The seat belt warning alarm (about 2 pulses per second) activates when the following conditions are met:
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The ignition switch is in the ON position.
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The LH front seat belt is unbuckled.
The audio alarm module applies and monitors battery voltage across a fixed resistor to the seat belt switch. When the LH front seat belt is unbuckled,
high voltage is applied and monitored at the audio alarm module. This indicates that the LH front seat belt is unbuckled. The alarm sounds for about 6
seconds if the front seat belt is not buckled. If the LH front seat belt is buckled while the audio alarm module sounds, the alarm stops.
The seat belt indicator works in conjunction with the seat belt warning alarm. The IG-COIL fuse applies ignition voltage to the seat belt indicator. If the
LH front seat belt is unbuckled, G400 supplies ground through the closed contacts of the seat belt switch to the seat belt indicator. The seat belt indicator
remains lit until the LH front seat belt is buckled.
