Ignition-operated power supply (INT/A) of instrument panel
E50
reaches pin 15 of connector A through fuse
F1
of junction
unit
B1
; pin 16 of connector A is earthed.
Ignition-operated power supply (INT/A) of
instrument panel
E50
reaches pin 15 of connector A through
fuse
F1
of junction unit
B1
; pin 16 of connector
A is earthed.
The electronic speedometer receives a speedometer
signal from ABS control unit
M50
- pin 22 - at pin 2 of
connector B of
E50
.
The speedometer signal is sent out again
to engine management unit M10 and to climate control system control
unit
M70
, navigator control unit
M90
and radio
P20
.
A boot opening enablement signal is sent
from pin 9 of connector B when the speedometer signal is less than
2 km/h. (see
See E3045 BOOT AND FUEL FLAP OPENING
).
The internal software also controls the
milometer and trip meter.
The electronic rev counter receives an rpm
signal from engine management unit
M10
(which is different
for each version) at pin 4 of connector B of
E50
.
Back window heater element enablement is
sent from pin 20 of connector B if engine rpm exceeds 1000 rpm.
(see
See E3030 HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING
).
The fuel level guage is controlled by level
measuring device
N40
through signals received by pins 19
and 20 of connector A of
E50
. located in the fuel pump unit:
the internal software also controls the reserve warning light.
The coolant temperature gauge is controlled
in different ways according to the version:
Sender unit
K36
sends a signal to
engine coolant temperature to pin 15 of connector C of
E50
.