Engine immobilizer function

When the user turns the ignition key to position M (+15), if the transponder code is recognized by the C.P.H. the warning light will go out signalling the go ahead for starting.

If the transponder code is not recognized, then the warning light in the dashboard will start to flash at a frequency of 2.5 Hz.

Engine immobilizer function

The immobilizer order is sent automatically to the injection system control unit by the C.P.H. in the following conditions:

• 5 minutes after the supply (+15) from the ignition switch is interrupted;
• 10 seconds after the driver's front door is opened and the key switched off.

Card containing access code

The manufacturer supplies a special card with the vehicle which contains a four digit recognition code. This code allows access to the passenger compartment protection control unit memory (C.P.H.). The code is vital for carrying out any sort of diagnostic operation. As a result, the card must be looked after very carefully.

The manufacturer has a record of each chassis no. and its specific code.

If the card containing the C.P.H. memory access code is mislaid, the owner of the vehicle must contact a Fiat authorized workshop or dealership with proof of ownership and the registration document which contains the vehicle chassis number.

Using the latter, the dealership will contact the manufacturer, who will consult their records detailing which access code goes with which chassis number for the vehicles produced on the assembly line.

NOTE The code on the card is covered by a layer of paint which ensures secrecy and can be removed.