9-3 Arc/Aero (9440) L4-2.0L Turbo (2.0 T) (2004)
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SIDC (SID controls), CV
The SID unit control panel communicates with the ICM on a wire and each button press or turn of the INFO knob is registered by the ICM. When
turning the INFO knob in one direction, SIDC pin 1 will ground ICM pin 11, and when turning it in the other direction, SIDC pin 2 will ground ICM pin
12. The signal after pressing a button is sent from SIDC pin 4 to ICM pin 14. The signal is a 5V, 960 Hz square wave (PWM), where the pulse ratio
varies between 10% and 90%.
