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
B99
) at
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
F4
of the
additional fuse box
B98
.
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
).