When the ignition key in the switch H1 is
turned to the extreme position (START) - pin 50 - the winding of
the solenoid - pin 50 - of the starter motor
A20
is supplied.
This supply comes directly from the battery
via the line for the fuse
F3
in the engine compartment junction
unit
B1
.
Pin 30 of
A20
, the actual starter
motor, receives the voltage coming directly from the battery
A1
.
The direct current generated by the alternator
A10
(pin B+) is sent to the battery
A1
, passing through
the motor
A20
.
When the alternator does not turn, and so
does not recharge the battery, an earth signal is sent from pin
D+ to the Body Computer
M1
- pin 19 of connector A: this
is connected via the CAN line to the instrument panel
E50
and
manages, as described above, the switching on of the recharging
warning light on the instrument panel.