BMW E90 Manual page 39

Legend for System Circuit Diagram
Index
1
2
Multiple restraint system 5
3
4
Junction box control unit
5
Dynamic stability control
6
Wheel speed sensor, left
7
Wheel speed sensor, right
8
Steering column switch cluster
9
10
11
12
MOST components (optional)
13
Vehicle wake-up signal
DFA_VL
Wheel speed signal, front left
Mic+
Microphone, positive
SOS LED
Emergency-call indicator lamp
ON signal for the charger electronics
Cradle On
in the snap-in adapter
Tel_On
Telephone ON signal for compensator
Explanation
RAD2
Instrument cluster
GPS antenna
Audio speaker
Audio amplifier
Index
13
Telematic control unit
14
15
Telephone aerial (TCU)
Roof function module (driver's-side
16
microphone, emergency-call button
with emergency-call indicator lamp)
17
18
19
Snap-in adapter with mobile phone
20
Telephone aerial (mobile phone)
21
Line compensator (optional)
22
23
Car access system 2
MOST
Media Orientated System Transport
FS
Service port MOST bus loop
DFA_VR
Wheel speed signal, front right
Mic-
Microphone, negative
SOS
Emergency call signal
Cradle
Call accept/transfer/pairing button
Key
Explanation
SOS antenna
SOS speaker
Base plate
Bluetooth antenna
E90 Communication
39