The side lights and parking lights are controlled by the electronic
Check device
M45, that receives control signals from the switches
and controls the bulbs while also checking the various lines.
The supply for the Check device
M45 arrives
directly from the battery.
(maxifuse CENTR of
B5
) to
pins 1 and 6 of connector C, via fuse
F11
of junction unit
B1
.
An ignition-operated power supply (INT/A)
reaches pin 9 of connector C through fuse
F1
of junction
unit
B1
: pin 7 of connector C is earthed.
The side lights switch for the exterior
lights control
H6
receives a go-ahead from pin 5 of connector
A; when the lights are on, it sends a command to pin 4 of connector
A of
M45
.
In response to this signal, the Check device
M45
controls the supply for the front side lights
F10
(left) and
F11
(right) from pins 6 and 4 of connector D;
for the rear lights
F30
and
F35
(left)
F31
and
F36
(right) from pins 11, 2, 3, 12 of connector E;
and, lastly, for the number plate lights
F50
and
F51
from pins 1 and 6 of connector E.
At the same time the 'side lights on' warning
light on the instrument panel
E50
, pin 5 of connector C,
is turned on from pin 9 of connector B, while pin 15 of connector
A supplies the ignition-controlled supply to the panel, through
fuse
F1
of the junction unit
B1
.
The parking lights switch of the exterior
lights control
H6
receives enablement from pin 13 of connector
A and sends the command to pin 9 of connector A of
M45
.
In response to this signal, the Check device
M45
controls the supply to the side lights as described
above.
When the parking lights are switched on,
a control is send from pin 12 of connector B to the stalk unit
H5
.
If from the stalk unit
H5
a signal reaches pins 4 and 5
of connector B indicating the selection of the right or left indicators,
the Check device
M45
controls the supply of the side lights
only on the selected side.
The device
M45
checks the efficiency
of the bulbs and their connections: if faults are detected in the
circuit, the 'lights fault' warning light on the instrument panel
E50
,
pin 7 of connector C, is lit from pin 6 of connector A, while pin
15 of connector A supplies an ignition-operated power supply to
the panel through fuse
F1
of the junction unit
B1
.
The exterior lights control
H6
is
illuminated when the ignition is on (INT/A), through the line of
fuse
F15
to the fuse and relay unit
B1
.