FUNCTIONAL DESCRIPTION (Boxer versions)

FUNCTIONAL DESCRIPTION (Boxer versions)

When the ignition key is turned in the ignition switch B1 right round to the "STARTING" position, the windings of the solenoid (pin 50) of the starter motor A11 are energized and the actual motor is supplied (pin 30) with the voltage leading from the battery A1 in this way cranking the engine ( In cars without ALFA ROMEO CODE, the starter motor supply "crosses" the anti-theft control unit N45 (pin B5 - B6) which cuts off this supply in the event of an alarm and the starting consent relay I10).

When the engine is running, the direct current generated by the alternator A3 (pin B+) is sent via the starter motor A11, to recharge the battery A1. All the lines for supplying the various electric systems of the car branch from the terminal board G56, connected to the + post of the battery A1 (see "Power Supply").

When the alternator is not turning and therefore not charging the battery, an earth signal is sent from pin D+ to the instrument cluster C10 to turn on the corresponding warning light; once the engine has started this signal becomes 12 V and the warning light goes off.

COMPONENTS AND CONNECTORS (Boxer versions)

(*) Variant for cars without ALFA ROMEO CODE, but with anti-theft system