XC90 2.5T AWD L5-2.5L Turbo VIN 59 B5254T2 (2003)
Information Bus: Description and Operation
Control Modules In the Most Network
Control modules in the MOST network
Location Of Components
The MOST network can consist of up to eight control modules.
The infotainment control module (ICM) monitors the MOST network and manages communication. The infotainment control module (ICM) is
monitored by the central electronic module (CEM) on the controller area network (CAN). In addition to the infotainment control module (ICM), there
are two control modules which are standard on the MOST network. These are:
the audio module (AUD)
the antenna module (ATM).
The table below lists all the control modules which may be included in the MOST network.
CAN= Controller Area Network, electrical network for communication
LS CAN= low speed side of the CAN
MOST= Media Oriented Systems Transport, fiber optic network for communication
Master control module= Control module which monitors the MOST network
Slave control module= Control module which supplies the MOST network functions
Option= accessory installed at the factory during the purchase of a new car
Accessory= after market installation
(x)= position number in the illustration