When ignition switchH1is turned to the extreme position (AVV) - pin 50 - the solenoid winding is energized - pin 50 - for the starter motorA20.This supply comes from the battery via the line of maxifuse IGN ofB99.Pin 30 ofA20, the actual starter motor, receives the voltage coming directly from the batteryA1.The direct current generated by the alternatorA10 (pin B+) is sent to the batteryA1, passing through the motorA20. 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 - pin 19 of connector A: this is connected via the CAN line to the instrument panelE50and manages, as described above, the switching on of the recharging warning light on the instrument panelE50.