The fiat code system

To further protect you car from theft, it has been fitted with an engine immobilising system. This system is automatically activated when the ignition key is removed.

An electronic device, in fact, is fitted in each ignition key grip. The device transmits a radio-frequency signal when the engine is started through a special aerial built into the ignition switch. The modulate signal, which changes each time the engine is started, is the password by means of which the control unit recognises the key and enables to start the engine.

See also:

Injection system failure
(Multijet versions - amber) EOBD SYSTEM FAILURE (petrol versions - amber) Injection system failure Turning the ignition key to MAR the warning light turns on but it should go off after engine ...

Radio transmitters and cellular telephones
Radio transceiver equipment (e.g.: e-tacs mobile phones, HAM radio systems and the like) shall not be used inside the vehicle unless a separate aerial is mounted on the roof. IMPORTANT The use of ...

Fuel reserve
Turning the ignition key to MAR, the warning light on the instrument panel shall turn on but it should go off after a few seconds. The warning light turns on (on certain versions together with ...