223002583 - E5010 STARTING AND RECHARGING - FUNCTIONAL DESCRIPTION (MY 2005)

Line (50) direct from the battery leaves ignition switch H001 from pin 3 of connector A. With the ignition key turned as far as it will go (AVV), the winding of starter motor electromagnet A20 is activated at pin C.Pin A of the starter motor is also supplied with voltage taken directly from battery A01 connector B.The direct current generated by alternator A10 (pin B+, connector B) is sent to battery A01, passing through starter motor A20 pin B.When the alternator is not turning and therefore not recharging the battery, an earth signal is sent from pin D+ to the Body Computer M01 - pin 19 of connector C:This controls activation of the low battery charge warning light in instrument panel E50 from pins 5 and 6 of connector D (CAN line).When the engine is started, this signal is equal to 12 V and the warning light goes off.The body computer and the control panel communicate with one another via pins 5 and 6 connector D of M01 and pins 9 and 8 connector A of E50.The body computer is supplied via pin 11 connector E (ignition-operated power supply) and pin A connector C (direct power supply) of junction unit B02. Fuse F1 in junction unit B01 protects the direct power supply.These lines also supply control panel E50 via two lines protected by fuses F37 and F53 of junction unit B02 and entering the panel at pins 1 and 3 connector A.Pins 8 and 9 of connector D of the body computer are earthed.