System Overview: Signals

The table below summarizes the input signals to and output signals from the High Level Display Front (HLDF). The signal types are divided into directly connected signals and CAN communication. The graphic below displays the same information with the Volvo component designations.

Input signals:	Output signals:
Directly connected:	Directly connected:
Multimedia module (MMM) (16/108), Video input 1 (RGB)	-
Via Controller Area Network (CAN) communication:	Via Controller Area Network (CAN) communication:
Steering wheel switch right (SWSR) via Infotainment control module (ICM) (3/281) Central electronic module (CEM) (4/56)	-

Fig 1: Identifying Input Signals And Output Signals From High Level Display Front (HLDF)

Courtesy of VOLVO CARS CORPORATION