Workshop Manuals Factory service & repair Fiat
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Axles and driveshafts12 Brakes13 Steering14 Suspension and wheels15 Heating, air conditioning and auxiliary units16 Electrical equipment17 Body fittings18 Body panels and frame19 Wiring diagrams and electrical functions20 Wiring harnesses21 Connectors and pin-outs22 Fault diagnosis23 Special tools
Fiat Doblò Factory Service Manual (2000-2010)19 · Wiring diagrams and electrical functions
19 · Electrical

Code - description

Make
Fiat
Model
Doblò Factory Service Manual
Year
2000–2010
Section
Vehicle electronic systems › Code - description
Wiring diagrams and electrical functionsCode - description

CODE - DESCRIPTION

1.2 8v, 1.6 16v, 1.3 JTD 16V, 1.9 JTD 8V, 1.9 DIESEL

Description

To increase protection against theft attempts, an electronic immobilizer system known as the ''FIAT CODE-2'' system has been adopted.

The keys are fitted with an electronic Transponder device, which sends a coded signal to a special CODE electronic control unit. If it recognizes the code sent, it allows the engine to be started up.

The code used in the communication, which takes place via aerial, changes each time the car is started up (rolling code). The code cannot therefore be reproduced, even with electronic scanners.

The body computer has the task of recognizing the key inserted in the ignition: in effect, the computer contains the secret code used in the dialogue with the key transponder.

The body computer contains all enabled key codes in its memory, together with the code used in the communication between the body computer and the engine management unit. When the key is turned to MAR for for the first time, if the key is identified correctly, the code is transferred to the engine management unit and is then indelibly linked to the body computer.

The Code system has supply lines for the control unit protected by the maxifuse which also protects the engine management system, by the supply fuses for the body computer and the instrument panel locted in the junction unit under the dashboard.

1.9 JTD 8V · from 12/03 · MY 2005

To increase protection against theft attempts, an engine immobilizer system known as the FIAT CODE-2 is used.

The keys are equipped with an electronic Transponder device that sends a coded signal to a special electronic CODE control unit. if it recognizes the code sent, it allows the engine to be started.

The code used in the dialogue, that takes place via an aerial coaxial to the ignition switch, varies each time the engine is started (rolling code): therefore the code cannot be reproduced even using electronic scanners.

The role of the body computer is to recognise the key inserted in the ignition switch: it contains the secret code used in the dialogue with the key transponder.

All the codes for the enabled keys and the code used in the dialogue with the engine management control unit are contained in the computer: when the key is turned to the ON position for the first time, if the key is correctly recognized, this code is transferred to the engine management control unit which remains indelibly linked to the Body Computer.

On this version, a serial line W connects the body computer and engine control unit to carry signals required for key recognition and the exchange of codes in recovery mode.

In the Code system, the control unit supply lines are protected a maxifuse that also protects the engine management system, body computer supply fuses and the control panel contained in the under-dashboard junction unit.

1.3 JTD 16V · from 12/03 · MY 2005

To increase protection against theft attempts, an engine immobilizer system known as the FIAT CODE-2 is used.

The keys are equipped with an electronic Transponder device that sends a coded signal to a special electronic CODE control unit. if it recognizes the code sent, it allows the engine to be started.

The code used in the communication that takes place via an aerial coaxial to the ignition switch, varies each time the engine is started (rolling code): therefore the code cannot be reproduced even using electronic scanners.

The body computer is responsible for recognising the key inserted in the ignition switch: it contains the secret code used in the dialogue with the key transponder.

All the codes for the enabled keys and the code used in the dialogue between the body computer and the engine management control unit are contained in the computer: when the key is turned to the ON position for the first time, if the key is correctly recognized, this code is transferred to the engine management control unit which remains indelibly linked to the Body Computer.

In the Code system, the control unit supply lines are protected a maxifuse that also protects the engine management system, body computer supply fuses and the control panel contained in the under-dashboard junction unit.

1.4 8v, 1.6 16v · from 12/03 · BIPOWER, MY 2005

To increase protection against theft attempts, an engine immobilizer system known as the FIAT CODE-2 is used.

The keys are equipped with an electronic Transponder device that sends a coded signal to a special electronic CODE control unit. if it recognizes the code sent, it allows the engine to be started.

The code used in the dialogue, that takes place via an aerial coaxial to the ignition switch, varies each time the engine is started (rolling code): therefore the code cannot be reproduced even using electronic scanners.

The role of the body computer is to recognise the key inserted in the ignition switch: it contains the secret code used in the dialogue with the key transponder.

All the codes for the enabled keys and the code used in the dialogue with the engine management control unit are contained in the computer: when the key is turned to the ON position for the first time, if the key is correctly recognized, this code is transferred to the engine management control unit which remains indelibly linked to the Body Computer.

In the Code system, the control unit supply lines are protected a maxifuse that also protects the engine management system, body computer supply fuses and the control panel contained in the under-dashboard junction unit.

Parts & tools for this job Staging For 2000 Fiat Doblò

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