The dipped headlamps activation signal is sent to pin 2 of connector
I of the Body Computer
M1 from the steering column switch unit
H5
See
E2011
DIPPED HEADLAMPS
.
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 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 pin 1 of connector A of
B2 to the motors in headlamps
F10 and F11.