BMW 7 Series (F01/F02) 2008-2015 Service Manual / General Vehicle Electronics / Anti-Theft System
BMW 7 Series: Anti-Theft System
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Introduction
Anti-theft System
The anti-theft system is available as an option. The task of the anti-theft
system is to indicate unauthorized
access to the vehicle by emitting an alarm. The alarm can be triggered
System Overview
Anti-theft System Circuit Diagram
Fig. 34: Anti-Theft System Circuit Diagram
COMPONENTS DESCRIPTION CHART
Hood switch
Car Access System 4 (CAS4)
Anti-theft system (DWA) LED
Junction Box electron
Functions
Overview
When activated, the anti-theft system on the F01/F02 monitors the entire
vehicle. The doors and hood/trunk lid,
emergency current siren, the vehicle interior and the DWA bus in particular ar
SEE MORE:
BMW display key- Malfunction
General information
A Check Control message is displayed.
BMW display key detection by the vehicle may
malfunction under the following circumstances:
The battery of the display key is discharged.
Interference of the radio connection from
transmission towers or other equipment with
high transmi
Zero Position Sensor
The zero position of the swivel module with respect to the zero position
sensor is detected by a 1/0 edge when
swivelling from the direction of the off position in the direction of the
optical axis. The swivel module is
repeatedly calibrated during operation based on this "soft" reference point.
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