System Overview: Signals

WARNING: This page is about a different car, the 2010 Volvo V70, 2009 Volvo V70, and 2008 Volvo V70. However, it is still accessible from the selected car via links, so may be relevant.

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

Input signals	Output signals
Directly connected:	Directly connected:
Power supply Ground Headphone panel (control signal) (16/111)	Loudspeaker left front (16/4, 16/55) Loudspeaker right front (16/3, 16/56) Loudspeaker left rear (16/6, 16/136) Loudspeaker right rear (16/5, 16/137) Center loudspeaker (16/26) (option). Headphone panel (16/111)
Via MOST communication: (ring network)	Via MOST communication: (ring network)
Infotainment control module (ICM) (3/281), main control module Integrated audio module (IAM) (16/1) Phone module (PHM) (16/60). Bluetooth phone module (BPM) (16/147) Multimedia module (MMM) (16/108)	Infotainment control module (ICM) (3/281), main control module Multimedia module (MMM) (16/108)

Fig 1: Identifying Input Signals And Output Signals From Audio Module

Courtesy of VOLVO CARS CORPORATION