9-3 (9440) L4-2.0L Turbo (2.0 HOT) (2003)
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The light switch is directly grounded to the body. The 2 pins of the lighting knob are supplied 10.2 V separately via a 1.2 kohm (parking light setting)
and a 1.5 kohm (headlamp setting) resistor integrated in BCM. Voltage between each pin and ground is 0 V when the circuit is closed to ground and
approx. 6 V (parking light setting) and 5.5 V (headlamp setting) when it is open. If the control module reads 10.2 V, it will interpret it as a break. The
LEDs are grounded internally and are supplied with PWM-regulated voltage from BCM.
