The supply for all the courtesy lights arrives
directly from the battery via the MAXIFUSE CENTR line of
B5
via fuse
F17
of junction unit
B1
.
The interior lights
G10
(front)
and
G25
and
G26
(rear) are switched on - depending
on the positions of their internal switch - by an earth signal which
is direct (permanently on) or timed.
However, the lights on the doors (front
left
G51
, front right
G52
, rear left
G55
and
rear right
G56
) only ever come on for a timed period.
Timing is managed by integrated services
control unit
M40, supplied directly by the battery via a line
from MAXIFUSE CENTR of B5 and protected by fuses F8, F15 and F19
of junction unit B1
See
E3050
ELECTRIC FRONT WINDOWS
.
The timing function is governed by instrument
panel
E50, which sends a signal from pin 11 of connector B to
pin 9 of connector B of control unit M40, and signals from switches N50
and N51 (pin 3 connector B), N55 and N56 (pin 3 connector A) to
pins 2, 3, 12 and 18 of connector B of control unit M40;
these
signals are simultaneously sent to connector B of instrument panel
M50
at pins 14-15-16-17 .
The timing is interrupted when the ignition
'on' signal is received, which reaches the instrument
E50
from the ignition-operated line (INT/A) of the panel - pin 15 of
connector A of
E50
- through fuse
F1
of junction
unit
B1
.
The timer starts again from the beginning
if the door locks are locked/unlocked via the safety knob or the
key activating the front locks; these signals reach the instrument
M40 at
pin 15 of connector B via the panel switches located in N50 (pin
1 connector A) and N51 (pin 1 connector A).
The signals coming from devices
N50-N51-N55-N56
are also used to operate the locking of the doors (
See
E3040
CENTRAL LOCKING
)
and for the management of the alarm system
See
E7015
ALARM
.
The device
N50 also performs a safety
function in the management of the automatic transmission
See
E7050
AUTOMATIC TRANSMISSION
.