BUCKLE SWITCH [(E)]
id0811005010x2
Purpose
• The buckle switch signals each module as to whether the seat belt tongue is inserted or not.
Function
• The buckle switch sends a seat belt status signal to each module (fastened or unfastened).
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Buckle
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Destination
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Front buckle (driver-side)
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Dash-electrical supply unit
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Front buckle (passenger-side)
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Sophisticated airbag sensor (SAS) control module
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Rear buckle
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Electrical supply unit (ESU)
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• The buckle switch turns on (contact point: Closed)/off (contact point: Open) according to the seat belt tongue insertion condition.
Construction/Operation
• The buckle switch is integrated with the following buckles.
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― Front buckle (driver-side, passenger-side)
― Rear buckle
• When the seat belt tongue is not inserted into the buckle, the switch turns on (contact point: Closed).
• When the seat belt tongue is inserted into the buckle, the switch turns off (contact point: Open).
