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Home >> Volvo >> 2009 >> S40 Base, 2.4 38, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Miscellaneous Components - Design And Function (544 Body) >> Subwoofer Module (Sub) (2004-2008) >> System Overview >> Signals

System Overview: Signals

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

Input signals Output signals
Directly connected:  Directly connected: 
(Power supply unless otherwise stated)
- -
Via MOST communication: 
(ring network)
Via MOST communication: 
(ring network)
  • Infotainment control module (ICM) (16/1) main control module
  • Audio module (AUD) (16/105).
  • Infotainment control module (ICM) (16/1), main control module.
Fig 1: Identifying Communications Network To Subwoofer Module
GLL117574Courtesy of VOLVO CARS OF NORTH AMERICA.