The ignition-operated power supply (INT)
of the instrument panel
E50
reaches pin 1 of connector A
through the line of fuse F37 of the unit under the dashboard
B2
;
the direct supply reaches pin 2 of connector A through the line
of fuse F53 of the unit under the dashboard
B2
; pin 7 of
connector A is earthed (earth controlled by the Body Computer
M1
).
The instrument panel
E50
is connected
from pins 3 and 4 of connector A to the Body Computer
M1
and via the latter to the whole CAN network: via CAN the signal
for the electronic speedometer arrives (coming from the ABS control
unit
M50
): this signal is replicated from pin 37 of
M50
to pin 17 of connector A of the Body Computer
M1
.
The electronic rev counter receives the
rpm signal coming via CAN from the engine management control unit
M10
.
The fuel gauge is controlled in accordance
with the signals coming from the fuel gauge sender unit located
in the fuel pump assembly
N40
- at pins 4 and 15 of the
Body Computer
M1
, and from here via CAN to the instrument
panel
E50
.
The seat belt warning light is controlled
by a signal sent to pin 15 of connector A of
E50
from switch
I45
.
The inertia switch warning light is controlled
in accordance with the signal which reaches pin 12 of connector
A of
E50
from the relevant switch
I50
(N.O. contact:
the N.C. contact is the one which interrupts the operation of the
petrol pump
See E5030 PETROL ENGINE ELECTRONIC MANAGEMENT
].
The brake pad wear warning light is controlled
in accordance with the signal which reaches pin 23 of connector
A of the Body Computer
M1
from the relevant sensor
K20
.
The low brake fluid/handbrake applied warning
light comes on through a signal from the handbrake switch
I40
,
which reaches pin 24 of connector E of the Body Computer
M1
, or
from the signal from the low brake fluid level sensor
K25
,
which reaches pin 18 of connector A of
M1
.
All these signals are transferred via CAN
to the instrument panel
E50
.