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.
The signal is sent to the headlamp internal
electronic circuit,w hich manages activation of the bulb.
Each circuit is protected by a fuse for
the junction unit
B1
:
F5
for the left headlamp and
F4
for
the right one.
The supply passes throught the headlamps
maintenance relay/remote control switch
J45
which only interrupts
this supply during starting (AVV signal from the starter motor).
The supply line for the left lamp also acts
as an enablement signal for the rear fog lamps (check device inside
the rev counter module
E15
)
See E2031 REAR FOG LAMPS