The supply for the rev counter module
E15
reaches
pins 10 and 16 of connector A directly from the battery. (maxifuse
J/B2 of
B99
) via fuses
F2
and
F3
of junction
unit
B1
; this supply is used by the check device for the
exterior lights.
Rev counter module
E15
receives a
supply controlled by the ignition (INT) at pin 15 of connector A
from the line protected by fuse
F4
of the additional fuse box
B98B
. Pin 14 of connector A is earthed.
The engine rpm signal, which is different
for each engine type, comes from the engine management control unit
M10
to
pin 6 of connector B.
In particular, for versions with automatic
transmission, the connecting line - pin 12 of connector B of module
E15
- to the gearbox management control unit
M55
- pin 10 of
connector A - is used for the instrument's gear indicator display
and the 'automatic transmission fault' warning light.
For all the other warning lights, refer
to the diagrams relating to the components to which they refer.