Once the cover is partially open insert the screw
driver from the side to completely remove the
cover.
Remove the coin cell battery from the holder and
install new battery.
Reinstall the cover and reposition the hood on the
housing.
If the other shifter battery is low, repeat the
procedure for replacement.
Make sure to respect correct polarity.
10. Diagnostics
LED Indication
Issue
Action
Remedy
Both LEDs red steady on
Front derailleur stall
• Check that the derailleur
is mounted correctly
• Check the SET point
Both LEDs yellow steady on Rear derailleur stall
• Check that the derailleur
is mounted correctly
• Check the SET point
LED 1 green and LED 2 red
steady on
Communication absence
between front and rear
derailleur
• Check connections of both
derailleurs.
• Check wires for damage
LED 1 red and LED 2 green
steady on
Failed reply from rear
derailleur to front derailleur
at end of movement.
Probable loss of rear
derailleur position
• Check the connection of
both derailleurs connector.
• Check the SET point