The dipped beam activation signal is sent to pin 4 of connector
D of the Body Computer
M1
from the stalk unit
H5
.
The Body Computer
M1
controls the
supply to the dipped beam headlamps, sending an earth signal to
the unit under the dashboard
B2
- from pin 8 of connector
F of
M1
- which energizes the relay T1; this supplies the
dipped beam headlamps and gives enablement to the headlamp adjustment
motors
F10
(left) and
F11
(right).
The headlamp adjustment control, located
in the unit
H90
, sends a control signal - when the relevant
buttons are pressed - to the instrument panel
E50
- pin
11 of connector B: the internal logic of
E50
then sends
the actual control signal to the motors, from pin 5 of connector
A, while pin 6 of connector A receives the enablement signal (dipped
beam lights on).
These control signals flow through underfacia
control unit
B2
to the motors in headlamps
F10
and
F11
- pins 6 and 7 .