9-3 (9440) L4-2.0L Turbo (2007)
Electrical connections
The CIM (steering column control module) supplies 5 volts to the keypad, for audio/navigation, phone and car settings on pin 1 and for
Sentronic/horn/SET on pin 4. Common ground is supplied to pin 2. Depending on the switch pressed, the aggregate resistance will change and thereby
also the voltage.
Pin 3 receives a 12 volt PWM signal to control the brightness of the LEDs.