Gilera GP 800 i.e. Service Station Manual page 272

Injection
Set the switch to "ON" and select the diagnostic
tester menu to the immobiliser function.
Scroll the pages to display the control unit data.
N.B.
AN UNPROGRAMMED SYSTEM CANNOT BE DETECTED UPON FIRST FITTING, OR IN CASE
THE DECODER AND THE CONTROL UNIT ARE REPLACED CONCURRENTLY.
The information will be as follows:
Unprogrammed control unit «ON»
Start-up disabled «ON»
Key number Zero › 250
1 Replacing the small cylinder
- Remove the original master key transponder and install it on the master key of the new cylinder.
- Program the system again as described in the injection chapter.
2 Decoder replacement
When the decoder is replaced it is necessary to program the system again.
Programming is indispensable for the engine start-up. (see injection chapter).
3 Control unit replacement
Programming is indispensable when the control unit is replaced to enable the engine start-up.
In this case it is sufficient to switch to "ON" using the master key.
N.B.
THE SERVICE KEY IS NOT USED FOR PROGRAMMING.
- WHEN NOT PROGRAMMED, THE CONTROL UNIT ALLOWS NO FUNCTIONAL DIAGNOSIS ON
THE ENGINE.
4 Replacing or duplicating service keys
Keys can be duplicated using the blank keys and the original master key.
WITH MASTER KEY
When the key switch is set to "ON" and program-
ming is performed normally, the LED switches on
as shown in the figure.
After the confirmation flash when switching to
"ON", a number of flashes are emitted, equal to the
number of keys used for programming.
INJEC - 18
GP 800 i.e.