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Anti-theft System Circuit Diagram

Fig 1: Anti-Theft System Circuit Diagram
G06925108Courtesy of BMW OF NORTH AMERICA, INC.
COMPONENTS DESCRIPTION CHART

Index Explanation
1 Hood switch
2 Car Access System 4 (CAS4)
3 Anti-theft system (DWA) LED
4 Junction Box electronics (JB)
5 Front power distribution box
6 Door contact, passenger's door
7 Door contact, rear passenger's side
8 Rear power distribution box
9 Emergency power siren with integrated tilt alarm sensor (SINE)
10 Trunk lock with trunk-lid switch
11 Door contact, rear driver's side
12 Door contact, driver's door
13 Footwell module (FRM)
14 Roof function center (FZD) with ultrasonic interior movement detector USIS
LIN-Bus Local Interconnect Network bus
K-CAN2 Body CAN2
KI. 30 Terminal 30

The anti-theft system on the F01/F02 is equipped with an ultrasonic interior movement detector for monitoring the vehicle interior. The ultrasonic interior movement detector USIS is fully integrated in the FZD.

The anti-theft system is equipped with an ultrasonic interior movement detector. The ultrasonic interior movement detector has been fully integrated into the FZD.

The door switches (6, 7, 11, 12, Hall-effect sensors) are monitored by the footwell module (13). As soon as the status of a Hall-effect sensor changes, the ultrasonic interior movement detector (14) receives that information via the K-CAN2. If the anti-theft system is activated, an alarm is triggered.

The hood switch (1) is monitored by the Car Access System 4 (2). If the status changes, an alarm is triggered in the same way.

Opening of the trunk lid is monitored by the Junction Box electronics (4). If the status of the trunk-lid switch (10) changes, it triggers an alarm.