BMW G12 2015 Technical Training Manual page 40

G12￿General￿Vehicle￿Electronics
5.￿Alarm￿System
Index
1
2
3
4
5
6
7
8
9
10
11
12
13
The￿alarm￿system￿in￿the￿G12￿is￿equipped￿with￿an￿ultrasonic￿interior￿movement￿detector￿for￿monitoring
the￿passenger￿compartment.￿The￿ultrasonic￿interior￿movement￿detector￿(USIS)￿is￿fully￿integrated￿in
the￿roof￿function￿center￿(FZD).
The￿door￿contacts,￿engine￿compartment￿lid￿contact￿switch￿and￿the￿opening￿of￿the￿tailgate￿are
monitored￿by￿the￿Body￿Domain￿Controller.￿As￿soon￿as￿a￿status￿changes,￿the￿ultrasonic￿interior
movement￿detector￿receives￿this￿information￿via￿the￿K-CAN2.￿If￿the￿alarm￿system￿is￿activated,
the￿siren￿with￿tilt￿alarm￿sensor￿is￿activated￿by￿the￿control￿unit￿in￿the￿event￿of￿a￿break-in.
The￿SINE￿is￿connected￿to￿the￿FZD￿via￿a￿local￿interconnect￿network￿bus.
The￿status￿of￿the￿alarm￿system￿is￿displayed￿via￿the￿LED￿at￿the￿interior￿mirror.
36
Explanation
Engine￿compartment￿lid￿contact￿switch
Fuse￿in￿the￿power￿distribution￿box,￿front￿right
Body￿Domain￿Controller￿(BDC)
Door￿contact,￿front￿passenger￿side,￿front
CAN￿terminator
Door￿contact￿on￿front￿passenger￿side,￿rear
Fuse￿in￿the￿power￿distribution￿box,￿rear￿right
Siren￿with￿tilt￿alarm￿sensor
Tailgate￿contact￿switch￿in￿the￿tailgate￿lock
Door￿contact￿on￿driver's￿side,￿rear
Roof￿function￿center￿(FZD)
LED￿in￿the￿interior￿mirror
Door￿contact,￿driver's￿side,￿front