LOCATION OF CONTROL MODULES ON THE MOST NETWORK
The control modules on the MOST network should be positioned in a particular order. If this order is not followed, the fault-tracing of the MOST network will deteriorate.
When further control modules are added to the MOST network, these should be placed in the correct order on the network to make it easier to fault-trace the control modules. If the control modules are connected in another order, this does not effect the function of the MOST network, but fault-tracing will be compromised. The control modules should be placed in the following order
- Infotainment Control Module (ICM) (16/1)
- Multimedia module (MMM) (16/108)
- CD module (MP2) (16/106)
- Phone module (PHM) (16/60)
- MD module (MP1) (16/107)
- Audio module (AUD) (16/105)
- Subwoofer module (SUB) (16/79)
- Antenna module (ATM) (16/110).
If the MD module (MP1) is installed as an aftermarket accessory in a car with a phone module (PHM) and CD module (MP2), the MD module (MP1) will change positions with the phone module (PHM).
If the configuration of the MOST network in the car is minimal, the following control modules are connected
- infotainment control module (ICM)
- the audio module (AUD)
- the antenna module (ATM).
Scheme 94
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.
Explanation
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
| Control module | Function | Communication | Other |
|---|---|---|---|
| Infotainment Control Module (ICM) (1) | Monitors the MOST network. | The master control module is connected to both the LS CAN and the MOST network. | Included in the standard set-up of the MOST network. Must be connected to the MOST network to function. |
| Multimedia Module (MMM) (2) | Displays traffic information on the directly connected display screen. | Slave module on the MOST network. | Option, accessory |
| Phone module (PHM) (4) | Controls carphone functions. | Connected to the LS CAN and is a slave module on the MOST network. | Option, accessory |
| MD module (MP1) (3) | Plays minidisks. | Slave module on the MOST network. | Option, accessory |
| CD module (MP2) (5) | Plays CDs. Can consist of a CD player or CD changer | Slave module on the MOST network. | Option, accessory |
| Antenna module (ATM) (8) | Consists of an AM/FM antenna. May also have a GPS unit and TMC unit as an option. | Slave module on the MOST network. | Included in the standard set-up of the MOST network. |
| Audio module (AUD) (6) | Amplifier connected to all loudspeakers except the subwoofer module (SUB). The microphone and headset panel are also directly connected to this control module. | Slave module on the MOST network. | Included in the standard set-up of the MOST network. |
| Subwoofer module (SUB) (7) | Amplifier and bass speakers integrated in the same unit. | Slave module on the MOST network | Option, accessory. The audio module (AUD) must be connected to the MOST network for the subwoofer module (SUB) to function. |
Model year 2011
Note. The control modules on the MOST network should be positioned in a particular order. If this order is not followed, the fault-tracing of the MOST network will be more difficult.
When a control module is added to the MOST network, it should be placed in the correct order on the network to make it easier to fault-trace the control modules.
If the control modules are connected in another order, this does not effect the function of the MOST network, but fault-tracing will be more difficult.
The control modules should be placed in the following order
- Infotainment control module (ICM)
- The Remote Digital Audio Receiver (RDAR)/Phone module (PHM)
- Audio module (AUD)
- Accessory USB unit (AUU)
- Multimedia module (MMM)/Global positioning system module (GPS)
- Integrated Audio Module (IAM)
Model year 2011
The following order applies to model year 2011 onwards
- Infotainment control module (ICM)
- Remote Digital Audio Receiver (RDAR)
- Phone module (PHM)
- Audio module (AUD)
- Multimedia module (MMM)
- Integrated Audio Module (IAM)
- Bluetooth phone module (BPM)
If the minimum configuration of control modules on the MOST network in the car is used, the following control modules are connected
- infotainment control module (ICM)
- Integrated Audio Module (IAM)
Model year 2007 (up to and incl. structure week 200708)
Scheme 95
Model year 2007 (from and incl. structure week 200709)
Note. The control modules on the MOST network should be positioned in a particular order. If this order is not followed, troubleshooting of the MOST network will be more difficult.
When a control module is added to the MOST network, it should be placed in the correct order on the network to make it easier to fault-trace the control modules.
If the control modules are connected in another order, this does not effect the function of the MOST network, but fault-tracing will be more difficult.
Control modules should be placed in the following order (applies to and incl. structure week 200708, model year 2007)
- Infotainment control module (ICM)
- The Remote Digital Audio Receiver (RDAR)/Phone module (PHM)
- Audio module (AUD)
- Multimedia module (MMM)/Global positioning system module (GPS)
- Integrated Audio Module (IAM)
- Subwoofer module (SUB)
Control modules should be placed in the following order (applies from and incl. model year 2007, structure week 200709)
- Infotainment control module (ICM)
- The Remote Digital Audio Receiver (RDAR)/Phone module (PHM)
- Audio module (AUD)
- Accessory USB unit (AUU)
- Multimedia module (MMM)/Global positioning system module (GPS)
- Integrated Audio Module (IAM)
- Subwoofer module (SUB)
If the minimum configuration of control modules on the MOST network in the car is used, the following control modules are connected
- infotainment control module (ICM)
- Integrated Audio Module (IAM)