Electrical/Electronic Circuit; Wiring; Layout Of System Earth Points - Fiat Bravo Service Manual

Engine
Fuel system
10.
E L E C T R I C A L / E L E C T R O N I C C I R C U I T
vehicle side wiring (A)
supply from the battery
supply from the ignition switch
fuses
system relay feeds
radiator fan relay(s)
climate control compressor relay (if fitted)
CODE control unit connection
control panel connection
diagnostic equipment
16

Wiring

The system has t w o distinct sets of wiring for
the control unit connectors: the engine side
wiring (B) which connects the components
fitted on the engine to the engine control unit
and the vehicle side wiring (A) w h i c h c o n -
nects the other components to the control
unit and constitutes the interface w i t h the ve-
hicle wiring.
engine side wiring (B)
engine speed sensor
absolute pressure and air temperature sensor
coolant temperature sensor
detonation sensor
Lambda sensor
power assisted steering end of travel sensor
injectors
idle speed actuator/butterfly position sensor
ignition
charcoal filter solenoid valve

Layout of system earth points

In order to increase electro-magnetic c o m -
patibility and operational reliability, special
care has been taken over the number and the
location of the earth points, as can be seen
the diagram:
- main earth directly on the battery negative;
- engine control system earth on the cylinder
block/crankcase near the detonation sen-
sor.
P4A16JJ02
Bravo-Brava i g | 16v
98 range
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