Gilera Nexus 500 Workshop Manual page 254

Injection
Code 3
Code no. 3 denotes a system where the decoder
perceives a transponder not provided for by pro-
gramming.
- Start-up disabled
- Injection telltale light on, steady
1- Check whether the code is still displayed using the master key
YES go to 3 NO go to 2
2 - Program again using all service keys
3 - Check that all components (keys - decoder - control unit) are properly matched.
YES go to 5 NO go to 4
4 - Restore
5 - Replace decoders and control unit. Program the components again.
Code 4
Code no. 4 denotes a system where the decoder
is blank and the control unit is programmed.
The key is recognised by the control unit.
- Start-up disabled
- Indicator light
N.B.
REPEAT THE KEY PROGRAMMING PROCEDURE USING THE ORIGINAL MASTER KEY.
Diagnosis guide
Immobiliser LED does not come on
1 - Check whether the injection indicator turns on
for 5 sec. after switching to "ON"
YES go to 2 NO go to 11
2 - Check 7.5A fuse No.10 located on the front
glove-box.
YES go to 4 NO go to 3
INJEC - 62
Nexus 500