198000552 - E5010 IGNITION AND RECHARGING - FUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

When the ignition key for switch H1 is turned to the extreme position (AVV) pin 50 - the starter motor A20 solenoid winding is supplied - pin 50.This power supply comes from the battery via the line for fuse F3 of the engine compartment junction unit B1.Pin 30 of A20, the actual starter motor, receives a power supply from the voltage coming directly from the battery A1.The continuous current produced by the alternator A10 (pin B+) is sent to the battery A1, passing through the motor A20.When the alternator is not turning and therefore not recharging the battery, an earth signal is sent from pin D+ to the Body Computer M1 - pin 25 of connector A: the latter is connected via the CAN line to the instrument panel E50 and manages the switching on of the recharging warning light in the instrument panel and the display of any messages as described above.The Body Computer M1 is supplied directly from the battery via line protected by maxifuse B99 at pin 18 of connector F that interfaces with the junction unit under the dashboard B2 .