65.3
65
Alarm system (DWA)
Service and maintenance notice
L
Note:
If a silver button (arrow) (LED indicator) is installed
adjacent to the ignition lock, this indicates that the
vehicle is equipped with an alarm system!
It is important to remember the alarm system during
all service and maintenance operations. Procedures
vary according to the operating mode to which the
system is set.
Applies to all service and maintenance opera-
tions
Before commencing operations with:
system in mode A or B
•
Deactivate the alarm function (
a
65.4)
Mode C
•
Reprogram the alarm system to mode B
(
a
65.6)
L
Note:
The alarm system activates itself automatically in
mode C!
When working with BMW MoDiTeC/DIS plus
diagnostic system
Before starting operations with:
system in mode A
•
Reprogram system to mode B (
a
65.6)
Mode B
•
Deactivate alarm function (
a
65.4)
Mode C
•
Program system to mode B (
a
65.6)
L
Note:
Return the system to its original operational status
following completion of service work.
Activating and checking operation of
alarm system
Activating the system
•
Extract the ignition key, the immobilizer automat-
ically assumes operational status after 15 sec-
onds
– The turn signals flash briefly
– The alarm function is inactive. You can switch on
the ignition (LED indicator lamp (D) lights up), but
not start the engine
– The current supply to the starter relay is inter-
rupted, and the emergency off function is active
C1650010
C1650020
2
1
A B
D
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