Diagnostica; Actuators; Sensors; Location Of Diagnostic Connector - Fiat Bravo Service Manual

Bravo-Brava @
98 range
DIAGAIOSTICA
The system is equipped w i t h an autodiagnostic function w h i c h is designed to verify an irregular state for
the following components:

Actuators

injectors
coils
charcoal filter solenoid valve
engine idle adjustment actuator
electric fuel pump relay
climate control relays (if fitted)

Location of diagnostic connector

Working w i t h the diagnostic equipment, it is possible to carry out a complete fault diagnosis of the sys-
tem, which consists of three stages:
- display of a series of functional parameters (with the engine switched off or running);
- display of the errors and their cancelling;
- activation of certain actuators (active diagnosis).
Recovery strategy
If a fault is detected with the sensors/actuators, the control unit, where possible, replaces the missing i n -
formation, reconstructing it using software (recovery) to allow the opertion of the engine.
Copyright by Fiat Auto
16v
P4A15JJ01

Sensors

engine speed sensor
vehicle speed sensor
Lambda sensor
butterfly position sensor
coolant temperature sensor
detonation sensor
If a fault is detected and confirmed, it is perma-
nently stored in the memory and the relevant
sensor is excluded from the system until normal
operation has been restored.
The detection of a confirmed fault usually i n -
volves the warning light in the dashboard corn-
ing on: it goes out w h e n the fault conditions no
longer exist.
NOTE During starting, the warning fight is:
- on for about 4 seconds,
- off for 0.1 seconds;
- kept on I off permanently according to
whether or not "permanent" errors are
present.
E n g i n e
Fuel system
10.
15