The switch
I30
is controlled by the ignition (INT)from
the line for fuse
F1
for the control unit
B1
: when
the brake pedal is pressed, the switch closes and sends the operating
signal to the check device inside the rev counter
E15
(pin 5
of connector A).
The supply for the check device inside
E15
arrives
directly from the battery (maxifuse
J/B2
of
B5
up
to 2/99 or of
B99
from 2/99) to pins 10 and 16 of connector
A, through fuses
F2
and
F3
of the junction unit
B1
;
the former protects the circuits for the lights on the left-hand
side, the latter those on the right.
The check device thereby controls the supply
(pin 18 and pin 13 of connector A) for the side brake lights in
the rear light clusters
F30
and
F31
.
In the case of failures in the circuit,
the "lights failure" warning light - inside
E15
-
comes on, with the supply controlled by the ignition (IINT), pin
15 of connector A, of the line protected by fuse
B11
up to
2/99 or by fuse
F4
of the additional fuse box
B98B
from
2/99.
The switch
I30
sends the signal for
operating the centre rear light cluster
F40
via the junction
unit
B1
(pin 18, connector D and pin 14 of connector E).
The braking signal for the switch
I30
is
sent from the switch to the ABS (
See E7020 ABS
)
and - on some versions - to the engine management control unit as
well (
See E5030 PETROL ENGINE ELECTRONIC MANAGEMENT
or
See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT
).