The alarm system is managed by an alarm
control unit built into Body Computer
M1
: it is supplied
from the battery from the line of maxifuse CPL
B99
- pin
18 of connector F and from a line protected by fuse F39 - pin 17
of connector F; the supply controlled by the ignition (INT) reaches
pin 9.
Body Computer
M1
receives door open
input signals at pin 8 (left door), pin 25 (right front passenger
door), pin 16 (left rear door) and pin 26 (right rear door) of connector
E (the same signals turn on the timed lights
See E2510 COURTESY LIGHTS
).
The bonnet lid is controlled by switch
I10
,
which is connected to pin 24 of connector A of
M1
, while
the boot lid is controlled by switch
I11
, which is connected
to pin 36 of connector E (the same switch turns on the boot light
See E2520 GLOVE COMPARTMENT LIGHT - LUGGAGE COMPARTMENT LIGHT
- SUN VISOR LIGHT
via a different
contact.
Siren
P90
is supplied by Body Computer
M1
, from pin 34 of connector A, and is connected to pin
25 via a dedicated serial line.
Volumetric sensors
K62
are supplied
by Body Computer
M1
, from pin 39 of connector E, and connected
via a dedicated serial line to pin 7.
Aerial receiver
P93
sends Body
Computer
M1
a signal controlling the doors and also the
alarm signal by connecting to pins 21 and 31 of connector A.
A deterrent led control signal is sent from
Body Computer
M1, from pin 14 of connector C, to turn on the
led in the hazard light, fog lamp, rear fog lamp control unit H12
Via the CAN line, the Body Computer
M1
is connected to the instrument panel
E50
, to which it sends
a signal which, when necessary, lights up the 'doors open' warning
light.