SUPPLY - Functional description

Functional description

All the electrical equipment and systems are supplied by the battery A1.

The main supply lines are protected by the engine compartment junction unit B1 fuses, in particular:

• F1 underdashboard junction unit supply B2, at pin A of connector C;
• F4 underdashboard junction unit supply B2, at pin B of connector C and additional fuse box B98;
• F3 ignition switch H1 supply.

Other circuits are supplied by turning ignition key H1 to various different positions:

• in the ON position, numerous circuits and services controlled by the ignition (INT line) are supplied ('INT and '15/54' lines): pin 2 of connector B and 1 of connector A;
• in the AVV position - the starter motor is supplied; (line '50')See E5010 STARTING AND RECHARING; in this position several circuits are disconnected ('INT/A line): 1 of connector B;