CODE - Description

06/99 to 03/02, up to 05/99

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 send 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 main function of the Code control unit is to identify the code in the ignition key. The control unit contains a secret code which is used to communicate with the key Transponder.

The control unit contains all enabled key codes in its memory, together with the code used in the communication between Code control unit and 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 Code control unit.

For more details see DESCRIPTION AND OPERATION: 5580E anti-theft device.

The Code system has supply lines for the control unit protected by the maxifuse which also protects the engine management system, by a specific fuse and by the fuse which protects other supplies controlled by the ignition: the two fuses are located in the engine compartment in the relay and fuse box.

04/02 to 08/03, from 06/04, from 09/03 · Euro 3

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 main function of the Code control unit is to identify the code in the ignition key. The control unit contains a secret code which is used to communicate with the key Transponder.

The control unit contains all enabled key codes in its memory, together with the code used in the communication between Code control unit and 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 Code control unit.

For more details see DESCRIPTION AND OPERATION: 5580E anti-theft device.

The Code system has supply lines for the control unit protected by the maxifuse which also protects the engine management system, by a specific fuse and by the fuse which protects other supplies controlled by the ignition: the two fuses are located in the engine compartment in the relay and fuse box.