Fiat 1996 Brava Service Manual page 357

Engine
Fuel system
Bravo-Brava 9 ^
1998 range
10.
INJECTION ELECTRONIC CONTROL UNIT
The injection control unit processes signals from the various sensors by applying software algorithms and
controls the actuators accordingly (particularly the injectors and pressure regulator) to achieve the best
possible engine service conditions.
The control unit is "flash E.P.R.O.M." type, i.e. it can be reprogrammed from outside without andy need
to adjust the hardware.
The injection control unit contains a built-in absolute pressure sensor and is connected to the wiring bya
134 pin connector
Identifying injection control unit connections (pin-out)
13 24 27
OOOOOO OOOOOOQ
lOOOOO OOOOOOOS
26 1
20 1
1-01 Battery positive (+30) from main
1 -02 Not connected
1 -03 Not connected
1-04 Earth
1-05 Earth
1-06 Earth
1 -07 Battery positive (+30) from main
1-08 Battery positive (+30) from main
1 -09 Not connected
2-01 Glow plug timer signal
2-02 Clutch pedal switch
2-03 Climate control system activation
2-04 Not connected
2-05 Not connected
2-06 Not connected
2-07 Not connected
2-08 Brake pedal switch
relay
relay
relay
request
2-09
2-10
2-11
2-12
2-13
2-14
2-15
2-16
2-17
2-18
2-19
2-20
2-21
2-22
2-23
2-24
3-01
3-02
3-03
Not connected
Not connected
Not connected
Not connected
Positive (+15) from ignition switch
Not connected
Not connected
Not connected
Not connected
Not connected
Not connected
Not connected
Not connected
Not connected
Low radiator fan speed activation
quest
Not connected
Fuel temperature sensor earth
Not connected
Not connected
re-
8
Publication n° 506.670/21