Principal use

The control module

1. is the control unit for the O-bus, which means that it controls all the unit on the O-bus. ICM is responsible for conveying information between the O-bus and the electric buses (P and I-bus).
2. Applies only to ICM 1, 2 and 3:  is the control panel for audio, telephone and navigation. ICM shares some logic functions with the radio main unit but is the overall control unit for navigation and communication.
3. is the control unit for SID and SIDC (SID control panel).

The control module governs mainly the following functions:

1. Customer settings
2. Service interval
3. Instrument lighting
4. Indicator sound
5. Trip computer functions
6. Warning and indicator messages, language and units.