This is probably the drain on the engine side of the bulkhead blocked. Lift the bonnet and you will see a plastic square outlet on the bulkhead about half way down on the passenger side. Clean this out with whatever you can get into it (fingers are good) and remove the cap to aid this. then flush it all trough with clean water by pouring it in the battery compartment.
On my W vauxhall corsa the dimmer switch is just under headlight switch (small scroll horizontal switch-like the scroll button on a mouse)
under the bonnet on the right on a corsa c
"The trim under the bumper"
The location of the cooling fan relay on a Vauxhall Corsa is under the dash. It is in the relay box on the driver's side.
Under The Steering Wheel
one fuse box under the bonnet on the right in a corsa c
In a 2001 Vauxhall Corsa C, the radio typically uses a 10 amp fuse. This fuse is usually located in the fuse box under the dashboard or in the engine compartment, depending on the specific model. Always consult the vehicle's manual for the precise location and specifications.
The fuse for the cigarette lighter on a 1996 Vauxhall Corsa is located in the fuse box under the dash. It is found in slot 23.
Under the heater controls
in the fuel tank, access it under the rear seat.
In a 2002 Vauxhall Corsa, the fuse for the windscreen washer motor is located in the fuse box inside the vehicle. Specifically, you can find the fuse box under the dashboard on the driver's side. Look for a fuse labeled for the windscreen washer, which is typically a 15A fuse. Always refer to the owner’s manual for the exact location and specifications.
In a Vauxhall Corsa, the cigarette lighter fuse is typically located in the fuse box under the dashboard on the driver's side. You may also find a fuse box in the engine compartment, but the one for the cigarette lighter is primarily in the cabin. To locate the specific fuse, refer to the owner's manual, which will provide a diagram and details for the correct fuse number.