9-3 Arc/Aero (9440) L4-2.0L Turbo (2.0 T) (2004)
Connect
The switch is ground from the door control module and is fed with 10.2 V via a resistor of 680 Ohms integrated in BCM. The voltage measured across
the pins will be approximately 4.1 V on the breaker is made and approximately 7.4 V when open. If the control module sees 10.2 V or 0 V it will be
interpreted as an error in the circuit. In order to save current when the car is not driven BCM will pulse the voltage to switch for 2.5 ms at 375 ms
intervals as soon as the car's bus communication stops.