Owner
Nicklas Andersson
Date
2020-09-08
Classification
Document number
5610_40037
Revision
1.4
Title
VCM User Manual
Page
4(9)
2
Introduction
The VCM is a connectivity ECU that is factory fitted in cars from Volvo Car Corporation (VCC).
It handles the diagnostic routing between the vehicle and the external test equipment for diagnostic
connections via CAN*, Ethernet/WLAN and Remotely via available Internet connections.
The VCM can also be used as a Wi-Fi hotspot for people inside the vehicle as well as a W-Fi client
to connect to available hotspots (for instance, a hotspot provided from a passenger’s laptop or cell
phone), and it provides raw GNSS position for use by other ECUs in the vehicle, such as the
Navigation system.
The VCM is capable of routing data to/from available Internet sources in the vehicle, for instance
the Wi-Fi station in the VCM, a Bluetooth handy connected to another ECU in the vehicle, or a
vehicle modem, also located in another ECU in the vehicle.
* Legislated OBD diagnostics (11-bit CAN) are not routed via the VCM.
