3315742 - E7015 ALARM - Functional description (Right hand drive)
Functional description
The alarm system is controlled by alarm
control unit
M30
integral with the siren.
The control unit is supplied directly by
the battery at pin 3 of connector A from the line protected by fuse
F17
and at pin 7 of connector B (supply for the direction indicators) from
the line protected by fuse
F8
; both fuses are located in
the junction unit
B1
.
An ignition-operated power supply (INT/A)
reaches pin 12 of connector B of control unit
M30
. through
a line protected by fuse
F5
of control unit
B1
.
Pin 9 of connector A is earthed.
Control unit
M30
controls door closure
via switches
N50, N55, N51, N56,
which send an earth signal
to pins 8, 15, 9 and 16 of connector B respectively when the door
is open (the same switches turn on the door open indication leds
(
See E2510 COURTESY LIGHTS
).
The bonnet lid is controlled by switch
I10
,
which is connected to pin 18 of connector B, while the boot lid
is controlled by switch
I11
, which is connected to pin 17
of connector B (the same switch turns on the boot light:
See E2520 GLOVE COMPARTMENT LIGHT - LUGGAGE COMPARTMENT LIGHT
- SUN VISOR LIGHT
).
Volumetric sensor unit
K62
receives
supply and earth signals from pins 8 and 11 of connector A of
M30
,
and sends on the alarm control signal to pin 12 of connector A of
M30
.
Pin 1 of connector A of
M30
sends
alarm led control signal
E40
.
Pins 1 and 2 of connector B of
M30
produce control signals for turn signals (
See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS
).
Remote control receiver
M35
is supplied
directly from the battery at pin 3.
An ignition-operated power supply (INT/A)
reaches pin 7 of
M35
via a line protected by fuse
F5
of control unit
B1
.
Pin 4 is earthed.
M35 (pins 5 and 6) issue door lock and door
release signals (
See E3040 CENTRAL LOCKING
).
Pin 10 of M35 controls the opening of the
boot, receiving the signal from the specific button located on the
ignition key.
Control unit
M30
and receiver
M35
are both equipped with a self-diagnostic system that may be used
by connecting to connector
R10
, pin 11. This receives signals
from pin 6 of connector A of
M30
and from pin 2 of remote
control receiver
M35
.
This serial line also acts as a connection
between
M30
and
M35
.