The dipped headlamps activation signal is
sent to pin 4 of connector I of the Body Computer
M1 from the
steering column switch unit H5.
The 'ignition ON' signal (INT) for the switch
H1 reaches the underdashboard control unit B2 at pin 11 of connector
H and from there moves on to the Body Computer
M1
(pin 9 of
connector F).
The side lights are active even if dusk
sensor
K85 is present (signal to pin 7 of connector D of M1)
, and AUTO function is set on stalk unit H5 (signal to pin 2 of
connector I of M1).
Dusk sensor
K85 is supplied from the
INT line protected by fuse F49 of control unit B2;
The Body Computer
M1
controls the
supply of the dipped headlamps sending an earth signal to the underdashboard
control unit
B2
- from pin 8 of connector F of M1 - which energizes
the relay T1: this supplies the dipped headlamps
F10
(left)
and
F11
(right). Each circuit is protected by a control
unit
B2
fuse: F13 for the left headlamp and F12 for the
right one.
The signal is sent by the headlamp internal
electronic circuit, which manages activation of the relevant light
and the dipped/main beam switch motor
The two electronic circuits inside headlamps
F10 (left) and F11 (right) are supplied - pin 9 - from the INT
line protected by fuse F37 of control unit B2.
Pins 12 are both control units are interconnected,
while pin 10 of the control unit in headlamp
F10 receives a speedometer
signal from Body Computer M1 (pin 28 of connector B).