Subaru FORESTER 2020 Quick Reference Index page 36

11 ENTERTAINMENT
11.2 Telematics System
Security
The protocol between the vehicle and the server is exclusive, making it difficult to be hacked from outside the vehicle.
The microcomputer connecting to the antenna (outside the vehicle) and the microcomputer for communication inside
the vehicle are separated, and the communication protocol between these 2 microcomputers are encrypted by the
manufactures original method, so it will be blocked inside the DCM even if it gets intruded from the antenna.
The DCM will receive the VIN information written in the EGI as a line via CAN, and stores in the DCM. The vehicle
and DCM are linked one-to-one, and the subscribed DCM will not work when installed on another vehicle.
MIC & SW & indicator
(Crash,SOS,RA,SVT,Remote Control,Diag...)
Linux OS
LTE/3G
Misc Services
(Option:HF,DR...)
Maim Processor
(LTE/3G MDM9x15)
GPS antenna LTE antenna
Speaker
TEL antenna (roof)
DCM
GPS antenna (instrument panel)
TEL (sub) antenna (instrument panel)
Application
Location/
GPS
Inter
CPU
Protocol
USB
HW driver
Vehicle Infrastructure
AT&T
3G/LTE
Dedicated line
Application
(CAN Msg,GPIO,Reflashing Handler)
Utility
Inter
CPU
Protocol
CAN Stack
Discrete
Inputs
11-22
Contract
Customer
contract
TSP
WCar
911 call
stolen vehicle tracking
Osek OS
Tool
Diagnostics
HW driver
Vehicle Processor
(Bolero)
CAN
NC-04428