System Overview

System overview

Control module




The AM/FM tuner module (AFM) has the task of receiving radio signals on the AM or FM wavebands then processing and transmitting the signals onwards on the MOST network.
There are four different market configurations:
- Europe
- USA
- Australia
- Japan.
In 4-door vehicles the control module is located on the parcel shelf. In 5-door vehicles the control module is located under the right-hand rear side window.
The control module uses optical serial communication to communicate with other components on the MOST network. This means that all communication with the control module is via the infotainment control module (ICM).
Any diagnostic trouble codes (DTCs) are stored in the control module memory. This information can be read off using VIDA via the data link connector (DLC) in the vehicle.
For further information, also see Signal specifications.

Signals
The table below summarizes the input signals to and output signals from the AM/FM tuner module (AFM). The signal types are divided into directly connected signals and MOST communication. The illustration below displays the same information with the Volvo component designations.