Can you drive a vehicle if the main brake does not work but the parking brake does?
Explanation
A failed main brake is one of the critical faults that ban you from driving the vehicle at all, even to a repair shop. It is simply too dangerous, because the driver cannot stop the vehicle effectively.
KET reference: KET 234.1: It is forbidden to drive a motor vehicle if the main brake does not work (the driver cannot stop the vehicle with it).