Entering The Secret Code; Antitheft Protection - Alfa Romeo 147 Owner's Manual

Antitheft protection

The radio is fitted with an antitheft pro-
tection system based on the exchange of in-
formation between the radio and the elec-
tronic control unit (Body Computer) installed
on the car.
This system warrants the highest level of
security and prevents entry of the secret
code every time the radio supply is discon-
nected.
If the result of the check is positive, the set
starts working, whereas if the comparison
codes are not the same or if the electronic
control unit (Body Computer) is replaced,
the device informs the user of the need to
enter the secret code according to the pro-
cedure described in the following paragraph.
168

Entering the secret code

When turning the sound system on (in the
event of code request), the display will show
the word "CDC CODE" for about 2 seconds,
followed by four dashes "- - - -".
The secret code comprises four figures from
1 to 6, each corresponding to one of the
dashes.
To enter the first digit of the code, press
the corresponding key of the preset stations
(from 1 to 6). Enter the other code digits in
the same way.
If the four figures are not entered within
20 seconds, the display shows the word
"CDC CODE" for 2 seconds and then fours
dashes "- - - -". This is not to be considered
as an incorrect code entry.
After entering the fourth digit (within 20
seconds), the radio starts working.
If a wrong code is entered, the radio
sounds a beep, the display shows the word
"CDC CODE" for 2 seconds and then fours
dashes "- - - -" to warn the user that it is nec-
essary to enter the correct code.
Every time the user enters a wrong code,
the waiting time increases gradually (1 min,
2 min, 4 min, 8 min, 16 min, 30 min,1h,
2h, 4h, 8h, 16h, 24h) until reaching a max-
imum of 24 hours. The waiting time will
be shown on the display with the word "CDC
WAIT". When this goes off it is possible to
start the new code entry procedure.
Code Card
This the document that certifies possession
of the radio. The Code Card contains the ra-
dio model, serial number and secret code.
IMPORTANT Keep the Code Card care-
fully to be able to give the related data to
the competent authorities in the event of
theft.