Vauxhall CORSA Owner's Manual page 36

34 Keys, doors and windows
Overload
If the system is overloaded, the power
supply is automatically cut-off for a
short time. The system is protected by
fuses in the fuse box 3 204.
Initialising the sun roof
If the sunroof cannot be operated,
activate the electronics as follows:
with ignition on close the sunroof and
hold d depressed for at least ten
seconds.
Seek the assistance of a workshop to
have the cause of the fault remedied.