The supply to the speedometer module
E10
reaches
pin 9 of connector A directly from the battery (maxifuse
J/B1
of
B5
), via fuse
F10
of the junction unit
B1
;
the supply controlled by the ignition (INT) reaches pin 10 of connector
A from the line protected by fuse
B11
.
Functional description
The supply to the speedometer module
E10
reaches
pin 9 of connector A directly from the battery (maxifuse J/B1of
B99
)
via fuse
F10
of the junction unit
B1
; the supply controlled
by the ignition (INT) reaches pin 10 of connector A from the line
protected by fuse
F4
of the additional fuse box
B98B
.
Functional description
Pin 1 of connector A is earthed.
The ABS control unit
M50
sends the
speedometer signal to pin 11 of connector A of
E10
.
The speedometer signal is sent again from
pin 15 of connector A to the engine control unit
M10
, which
differs for the various versions and from pin 16 of connector A
towards the climate control unit
M70
.
Functional description
Pin 7 of connector A of
E10
receives
the signal for the outside temperature from the climate control
unit
M70
.
The zeroing signal for the trip meter reaches
pin 12 of connector B from
H10
.
The switch
H10
has ideograms lit
up when the side lights are switched on through the line coming
from the switch for the steering column switch unit
H5
.
See E2530 INSTRUMENT LIGHTING
.
The earth signals which provide information
on the state of wear of the brake pads, coming from sensors
K20
and
K21
reach pin 11 of connector B.
For all the other warning lights, refer
to the diagrams relating to the components to which they refer.
Functional description
The water in diesel filter sensor
K31
is supplied by the line of the maxifuse EFI of
B99
,
and sends an earth signal to pin 13 of connector A of the speedometer module
E10
when a certain level of humidity is detected in the diesel
filter.