The headlamp washer delay unit
R3
is located in junction unit
B1
.
It is supplied (pin P) directly by the battery
(maxifuse CENTR of
B5
) via fuse
F12
of junction
unit
B1
; pin 31 is earthed.
The device only works with the dipped headlamps
on: pin 56 of
R3
receives a signal from the line coming
from the dipped headlamps circuit (
See E2011 DIPPED HEADLAMPS
):
the dipped headlamps switch for the exterior lights control
H6
receives a supply controlled by the ignition (INT/A) at pin 7 via
fuse
F13
of junction unit
B1
; when the lights are
on a command is sent, via the steering column switch unit
B5
,
to pin 6 of connector B of
M45
: in response to this signal
the Check device
M45
commands the supply of the dipped headlamps
from pin 5 of connector D. This signal energizes the relay
R1
,
located in the relay control unit
B3
, which supplies the
dipped headlamps via the line for fuse
F7
of
B3
and the headlamp washer
R3
of
B1
. - pin 56.
The windscreen wiper motor
N15
is
supplied from pin 1 of connector B stalk unit
H5
.
If the windscreen washer switch of the stalk
unit
H5
is operated, a command signal is sent to the windscreen
wiper motor
N15
- pin 4 of connector B.
The command signal for operating the headlamp
washer is sent to pin S of
R3
.
In response to both signals at pins S and
56, the device
R3
of
B1
supplies - from pin P - the
headlamp washer pump
N25
with pulses of about half a second.