Control Module

Fig 1: Identifying Accessory USB Unit (AUU)

Courtesy of VOLVO CARS CORPORATION

The accessory USB unit (AUU) is designed to serve as an interface between the vehicle infotainment system and external USB units.

The accessory USB unit (AUU) has a directly connected USB port and supports the standard for removable media on USB 1.1 and 2.0.

The accessory USB unit (AUU) receives input signals from the infotainment control module (ICM) via the MOST network. The current status appears on the Infotainment Control Module (ICM) display.

All input and output signals from the control module travel via the MOST network.

The accessory USB unit (AUU) is located behind the combined instrument panel.

When replacing the control module reprogramming is required.

The control module can be diagnosed.