9-3 (9440) V6-2.8L Turbo (2008)
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Main task
The microswitch is used to determine whether the rear seat backrest is locked.
Type
The switch contains a bipolar switch and two parallel resistors. Only one resistor is connected in series to ground when the switch is open (backrest
unlocked) while both are connected in parallel to ground when the switch is closed (backrest locked).
Connect
Microswitch pin 2 is grounded through REC pin 3. The input from the sensor is connected to a circuit with B+ supply through a 1 kohm resistor. The
circuit is grounded internally through a 3 kohm resistor, whereby the voltage applied on pin 8 to the microswitch will be 10 V.
