Fiat Bravo Service Manual page 227

Bravo-Brava
DIAGNOSIS
The system is equipped with an autodiagnostic function which checks for any irregular state in the fol-
lowing components:
Actuators
injectors
coils
charcoal filter solenoid valve
engine idle adjustment solenoid valve
electric fuel pump relay
climate control compressor relay (if fitted)
electric fan low speed relay
electric fan high speed relay (if fitted)
Location of F/L Tester connector
1. Parameters displayed
The following engine parameters are displayed:
- air flow rate,
- coolant temperature,
- butterfly sensor position,
- Lambda sensor voltage,
- battery voltage,
- Lambda sensor state,
- vehicle speed,
- engine rpm,
- air flow rate/maximum flow rate,
- ignition advance,
Copyright by Fiat Auto
Sensors
engine rpm sensor
engine timing sensor
air flow meter
Lambda sensor
coolant temperature sensor
butterfly position sensor
vehicle speed sensor
detonation sensor
The detection of a fault, if confirmed, in-
volves it being permanently memorized, as
well as excluding the relevant sensor from the
system until it is repaired.
The detection of a confirmed fault usually in-
volves the warning light in the dashboard
coming on: the warning light goes out when
the fault is repaired.
Working with the Fiat Lancia Tester it is pos-
sible to carry out a complete fault diagnosis
of the system which consists of three stages:
1. displaying a series of functional parame-
ters (with the engine running);
2. displaying errors and cancelling them;
3. activating certain actuators (active diag-
nosis).
P4A17BJ02
- charcoal filter solenoid valve duty cycle,
- injection time,
- engine load (TP),
- objective engine idle speed,
- engine idle speed adjustment solenoid
valve duty cycle,
- FIAT C O D E state,
- errors present.
VI-96 - Cancels and replaces
Engine
Fuel system
10.
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