Do they turn off when the car is shut off? Im not familier with this type of vehicle but if it has a sensor that sences the windsheild is wet. If it does have the sensor they would only run when the car is on. There may be a problem with the sensor. If the vehicle does not have this sensor the wiper module is probably bad. The wiper module is screwed into the wiper motor and can usually be replaced without replacing the whole wiper motor.