Check Operation Of Engine Control Systems - Fiat Bravo Service Manual

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H I CHECK OPERATION OF ENGINE CONTROL S Y S T E M S (using the autodiagnostic socket)

A complete electronic fault diagnosis of the injection/ignition system can be carried out by connecting

the Fiat/Lancia Tester or the SDC or Examiner stations to the diagnostic socket.

The system is also equipped w i t h an autodiagnostic function which recognizes, memorizes and signals

any failures.

If a fault is detected and confirmed it is permanently memorized and the relevant sensor is excluded from

the system until it is repaired.

When a fault is detected and confirmed the warning light in the dashboard usually comes on: w h e n the

fault is repaired the light goes out.

Working with the Fiat/Lancia Tester or the SDC or the Examiner it is possible to carry out a complete

system fault diagnosis which consists of three stages:

1. display of a series of functional parameters;

2. display of the errors or their cancellinge;

3. activation of certain actuators (active diagnosis).

Unlike the Fiat/Lancia Tester, the SDC and Examiner equipment use a "touch screen" type display

which is easy to use and can display several parameters simultaneously; a single CD R O M , w h i c h can be

periodically updated, makes it possible to carry out fault diagnosis for electronic systems on all Group

vehicle models. Also, if connected to a printer, the results of the fault diagnosis can be certified. In addi-

tion to the diagnostic functions these pieces of equipment have powerful integrated measuring instru-

Introduction

Planned maintenance