Hi i have a polo 9n3 and the car has been rebuilt and the wiper has a problem coming on...
When it comes on the wiper will come up half way and get stuck or it will work and when i put it off it stays in its position and doesnt go back down
The wiper motor has been changed so its not that
Can anyone help me
Previous Owner said it can be a cable not connected maybe a wiring diagram might help me

Dont have any experience with this kind of problem but heres a diagram..

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