How do you repair the rear windscreen wiper on a fiat brava?

To repair the rear windscreen wiper on a Fiat Brava, first check the wiper blade for damage and replace it if necessary. Next, inspect the wiper arm for any looseness or breakage; if it's loose, tighten the nut or bolt securing it. If the wiper still doesn't function, check the fuse and wiring for issues, or test the motor by applying direct power to it. If the motor is faulty, it may need to be replaced.