Gilera 633721 Workshop Manual page 246

Injection
pleted, the LED remains permanently OFF. The
engine can be started.
5. Decoder programmed - fault detected: a light code is displayed according to the fault detected,
after which the LED remains on steadily. The engine cannot be started. The codes that can be trans-
mitted are:
•
1-flash code
•
2-flash code
•
3-flash code
Code 1
Code 1 indicates a non-programmed system.
If the code is still displayed after having carried out
the programming procedure, repeat the procedure
carefully observing the "ON" times of each key.
If the code is still displayed, proceed as follows:
- Disconnect the battery negative.
- Remove the control unit connector.
- Connect the special tool between the injection system and the control unit.
- Remove the main decoder connector.
N.B.
TO ACCESS THE COMPONENTS, SEE THE COMPONENTS LAYOUT CHAPTER.
Specific tooling
020481Y Control unit interface wiring
1 - Using a multimeter, check the continuity be-
tween pin 16 of the control unit and pin 6 of the
decoder connector.
YES go to 3 NO go to 2
2 - Repair or replace the wiring.
3 - Check the connections carefully
YES go to 5 NO go to 4
4 - Restore
INJEC - 246
Nexus 500 euro 3