3239248 - E1010 SUPPLY - Functional description

Functional description

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

The main supply lines are protected by two maxifuse boxes B5 and B6, which contain 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.
  • ABS : ABS supply;
  • VENT : engine cooling fans supply;
  • A/C : air conditioning system 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, protected by fuse B11 and (line "15/54") by shunt fuses B25 e. B30 [up to 3/98] or B31 and B32 [from 3/98].
  • in the AVV position - the starter motor is supplied; (line "50"); (line 50) ( See E5010  STARTING AND RECHARING): certain circuits are disconnected in this position (INT/A line). protected by fuse B10
  • in the PARK position the side lights are supplied ("STAZ" and "POS" lines);. ( See E2010  SIDE LIGHTS / NO. PLATE LIGHTS).