The Car Information Computer (CIC) is incorporates many innovations and new
features. The system has been
introduced to the US market on the 1 Series and the 3 Series from September of
2008 producti
Fig. 2: CIC System Block Diagram
CIC SYSTEM EXPLANATION CHART
Central information display (CID)
Car Information Computer (CIC)
User interface (BO)
Application software
Hardware
Fig. 3: Bus Ov
Signal Detection
The functions of the steering column switch cluster are:
Detecting the switching signals of the steering-column switches
Detecting the controls in the multifunction steering wheel
Resetting the turn indicator
Transmitting and receiving information.
Detecting the Switching Sign
IMPORTANT: Steering box:
Check connection of steering box for corrosion, clean contacts if necessary.
The steering box must be replaced if the corrosion is too far advanced.
Connecting line:
In the event of moisture/corrosion inside the two plug connections, check the
insulation of the connecting