3315691 - E5010 STARTING AND RECHARING - Functional description
Functional description
Engine start-up via starter motor
A20
is controlled
by start-up enablement relay
J5.
The relay is supplied from the battery via
terminal unit
A5
and start-up enablement MAXIFUSE
B9.
Ignition switch
H1
receives battery
power via the line of maxifuse ACC of
B5
.
When ignition switch
H1
is turned
to the extreme position (AVV), relay
J5
is excited and
supplies the solenoid winding (pin 50) of starter motor
A20
.
Pin 30 of
A20
, the actual starter
motor, is supplied with voltage directly from the battery via terminal
unit
A5
.
A start-up signal - pin 50 of
H1
is also directed to instrument panel
E50
- pin 13 of connector
A - whose internal software uses the information to set the system
to 'engine running' status.(
See E4010 INSTRUMENT PANEL
).
The start-up signal also reaches relay
R1
,
which supplies numerous ignition-operated lines (INT/A).(
See E1010 SUPPLY
).
The direct current generated by the alternator
A10
(pin B+) is sent to the battery
A1
, passing
through motor
A20
. When the alternator is not turning, i.e.
not charging the battery, an earth signal is sent from pin D+ to
instrument panel
E50
- pin 7 of connector A.
Instrument panel
E50
ingition-operated
power supply (INT/A) passes through fuse
F1
of junction
unit
B1
to pin 15 of connector C. When the above signal
reaches the panel, the generator warning light comes on. When the
engine has been started up this signal becomes 12 V and the warning
light goes out.