BMW 7 Series: System Overview

Anti-theft System Circuit Diagram

Fig. 34: Anti-Theft System Circuit Diagram

COMPONENTS DESCRIPTION CHART

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.

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