My 202 Chevy Malibu's windshield wiper only works on the highest setting, do I need to replace the motor? how?

My 202 Chevy Malibu's windshield wiper only works on the highest setting, do I need to replace the motor? how to do it?My 202 Chevy Malibu's windshield wiper only works on the highest setting, do I need to replace the motor? how?
there is nothing wrong with the motor it's your wiper switch in the steering column that is bad.My 202 Chevy Malibu's windshield wiper only works on the highest setting, do I need to replace the motor? how?
its not going to be the motor if it still works on the highest setting it means your resistor pack has burnt out.