3315560 - E2030 FOG LIGHTS - Functional description
Functional description
The front fog lamps
F15
(left) and
F16
(right) are supplied through the front fog lamps relay
R5
located in the relay unit
B3
.
The relay is supplied directly from the
battery through the fuse line
F3
of the relay unit
B3
.
The operation of the fog lights is controlled
by the electronic Check device
M45
.
The supply for Check device
M45
arrives directly from the battery (MAXIFUSE CENTR of
B5
)
at pins 1 and 6 of connector C, via fuse
F11
of junction
unit
B1
.
The supply controlled by the ignition (INT/A)
arrives via fuse
F1
of junction unit
B1
at pin 9
of connector C; pin 7 of connector C is earthed.
The command to switch on the fog lights
is sent by the specific switch in the switch unit on the tunnel
H35
(pin 10).
This signal is received by the control unit
M45
at pin 2 connector A which gives the go ahead to switch on the fog
lights from pin 1 connector D, energizing the coil for relay R5 of
B3.
This go ahead is only implemented by the
control unit
M45 when the control for the outside lights H6 is
in the side lights on condition.This condition is recognized by the control
unit when pins 2, 4 and 5 of connector A are short circuited.
With the fog lights on, an earth signal
is sent from pin 7 connector B of
M45
to increase the lighting
of the control switch on
H35
.
The supply for the module
H35
is
produced by the line controlled by the ignition INT/A via fuse
F5
.