System Overview

System overview

Control module





Note! The document describes which versions of Infotainment system (Performance, High performance, High performance multimedia, and Premium sound multimedia) apply to the different versions of Infotainment control module (ICM).For more information, see: Design and Function - Infotainment system, generation 2.1

The Infotainment control module (ICM) acts as a gateway between the CAN and MOST networks. It also acts as the master control module in the MOST network and checks the other control modules.
Infotainment control module (ICM) has an integrated screen. A remote control also belongs to Infotainment control module (ICM).
The remote control is used for activating most functions that can be controlled via the keypad on the Climate control module (CCM) and via buttons on the steering wheel.
The Infotainment control module (ICM) controls functions run on the MOST network via its user interface. The command is transmitted from the Infotainment control module (ICM) to the other control modules in the network. These implement the requested functions, for example sound playback, changing sound sources and radio settings.
Infotainment control module (ICM) is the main control module in the whole Infotainment system.
For more information, see: Design and Function - Infotainment system, generation 2.1.
The Infotainment control module (ICM) also controls the Infotainment Theft Protection (ITP) function.
For information about the functions controlled by the Infotainment control module (ICM) but implemented by other control modules in the MOST network, see Design and Function for each control module and for the MOST network.
The Infotainment control module (ICM) is in the dashboard. The control module is removed from the dashboard for replacement.

The Infotainment control module (ICM) communicates with other control modules via:
- CAN communication
- LIN-communication
- MOST communication.
MOST communication is via a fiber optic communication link.
The control module checks activations and input and output signals via an integrated diagnostic system. A diagnostic trouble code (DTC) is stored if the Infotainment control module (ICM) detects a fault.
Any diagnostic trouble codes (DTCs) are stored in the control module memory. This information can be read off using the diagnostic tool via the data link connector (DLC) in the vehicle.
A simple way to check that the Infotainment control module (ICM) is supplied with power and is grounded is to check that the screen lights up when the ignition is on.

Signals
The table below summarizes the input signals to and output signals from the Infotainment Control Module (ICM). The signal types are divided into directly connected MOST-communication, LIN-communication, and CAN- communication. The illustration below displays the same information with the Volvo component designations.