Gilera 633721, Workshop Manual

Page: 58 / 407

oughly inspected: In any case it is advisable to use
resistive spark plugs.
Characteristic
MASTER key:
BROWN KEY
SERVICE key.
BLACK KEY
Diagnostic codes
The immobiliser system is tested each time the ig-
nition-key switch is turned from OFF to ON. During
this diagnosis phase a number of control unit sta-
tuses can be seen and various light codes dis-
played. Regardless of the code transmitted, if at
the end of the diagnosis the led remains off per-
manently, the ignition is enabled. If, however, the
led remains on permanently, it means the ignition
is inhibited:
1. New decoder - key inserted : a single 2 second
flash is displayed, after which the LED remains off
permanently. The keys can be stored to memory,
the vehicle can be started but with a limitation im-
posed on the number of revs.
2. New decoder - transponder missing or illegi-
ble : The LED is permanently ON; in this condition,
no operations are possible, including starting of
the vehicle.
3 . Decoder programmed - service key inserted
(normal operating condition) : a single 0.7-sec-
ond flash is displayed, after which the LED re-
mains off steadily. The engine can be started.
4 . Decoder programmed - master key inser-
ted : a 0.7-sec flash is displayed followed by the
LED remaining off for 2 sec. and then by short
0.46-sec flashes the same number of times as
there are keys stored in the memory including the
Master key. When the diagnosis has been com-
Electrical system
Nexus 500 euro 3
ELE SYS - 58