2892473 - E1010 SUPPLY - Functional description (BIPOWER)

Functional description

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

The main supply lines are protected by the maxifuse box B5 which contains the fuses named according to the circuits protected:

• EFI: supply for fuses and relays for engine management
• IGN: ignition switch H1 supply;
• J/B2 and J/B1: supply for services through junction unit B1 fuses.

Other maxifuse fuses are located individually in the engine compartment and protect the following systems:

• B7 ABS supply;
• B8 engine cooling fan supply;

Other bridge fuses are located in the compartment on the dashboard, driver's side, next to the junction unit B1 ; others are located in the relay and fuse unit in the engine compartment.

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, protected by fuses for the junction unit B1 and (line 15/54) by fuses B25 and B31 ;
• in the AVV position - the starter motor is supplied; (line '50') See E5010  STARTING AND RECHARING
• In this position several circuits are disconnected (line 'INT/A'). protected by shunt fuse B27 ;
• in the PARK position the side lights are supplied ('STAZ' and 'POS' lines); See E2010  SIDE LIGHTS / NO. PLATE LIGHTS