The circuit for the dipped beam headlamps is operated by the
steering column switch unit
H5.
By placing the switch in the dipped beam
position, the line which supplies the headlamps
F10 (left)
and F11 (right) is supplied controlled by the ignition.
Each circuit is protected by a fuse in the junction unit
B1: F5 for the right headlamp and F4 for
the left one.
With the dipped beam headlamps on, this
supply passes through the dipped beam headlamps maintenance relay/remote
control switch
J45.
If the dipped beam and main beam headlamps
are switched, this supply is interrupted, but it is replaced by
the one supplied from pin 87 of remote control switch
J45:
the signal for switchign on the main beam headlamps - through the
line for fuse F7 of the junction unit B1 - energizes the relay (pin 85) which switches the supply at
the direct line (maxifuse J/B2 for B5) which keeps
the circuit for the dipped headlamps and the main beam headlamps
supplied.
The supply line for the right lamp - protected
by fuse
F5
- also acts as the go ahead signal for the
headlamp alignment (
See
E3080
HEADLAMP AGLINMENT CORRECTOR
) and
the headlamp washer (
See
E3022
HEADLAMP WASHER
).