9-3 (9440) V6-2.8L Turbo (2008)
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Hood Sensor/Switch (For Alarm): Description and Operation
Bonnet Switch, Anti-Theft Alarm (276)
Location
Main task
Used to indicate whether the bonnet is open or closed. The value is used for the anti-theft alarm function and to inform the driver that the bonnet is not
closed. BCM sends the status of the switch on the bus.
Type
The switch contains a single pole breaker. When the bonnet is closed the breaker is open. When the bonnet opens the breaker makes.
Connect
Pin 2 has direct chassis grounding and pin 1 feeds with 10.2 V via a resistor of 1.5 k Ohms integrated in BCM. The control module input is digital. A
voltage above 2 V is interpreted as an open circuit while lower than 2 V is interpreted as closed.
