I got a 1993 240sx hatch, and 2 nights ago my rear wiper was working fine, i pushed the button to turn it on, and it worked, and i pushed the button again and it shut off!! Now, last night, it was raining and i was sitting in my driveway and i turned my rear wiper on with the button. Then i pushed the button again to disengage the rear wiper, and the wiper would not stop!!!

It stayed on even though i hit the botton and the button did disengage, and it came out more! Like when you turn the wiper on the button sits in a little then when you push it again, it comes back out! So the only way i could get my rear wiper to stop was to shut my car off! But wherever my rear wiper was when i turned the engine off, it stayed stuck there, and in the way of sight from the mirror! So i timed it good and got it to stay where its suppose to sit! Then i turned the car on again and i didnt turn the rear wiper on, but i hit the button above it... (which is to spray water on the rear glass button) and that caused the wiper to turn on, and it wouldnt stop again, so then i had to time it right again to get it to stay where its suppose to sit! This is making me crazy!!

Please help!