BMW F01 Manual page 12

K-CAN signals at the CIC control unit, that are not defined in the system circuit diagram:
In/Out Signal
In
Speed signal
In
Terminal status
In
Timer bus signal
In
In
Out
Rad_on signal
12
F01 Audio Systems
Wheel speed sensor > DSC
Instrument cluster > ZGM >
Control
Kl. 58g Light switch > FRM > ZGM
Source/sink
> ICM > ZGM >
CAS > ZGM >
CON > ZGM >
> ZGM > HiFi amplifier
Function
Speed-dependent volume control
Terminal control
Transfer of ambient conditions
User interface control
Button lighting/instrument lighting
Rad_on signal for HiFi amplifier