in this case, the positioning switch in the wiper motor is out of order.
It is decently possible that it is an electrical short making it register the mist setting instead. A test of this would be to turn it to the mist setting to see if it turns off, as shorts can cause triggers to switch.
A bad fuse may be the cause of windshield wipers not working on a 1998 Lumina. The switch that activates the wiper motor is another possible cause for the wipers not working.
A bad relay switch will cause the windshield wipers to not turn off. Replace the relay switch and the windshield wipers should turn off.
There are several things that can cause your windshield wipers not to work. The most common cause is a malfunctioning windshield wiper motor.
A bad pulse board or window wiper motor can cause your wipers to stay in the "up" position.
it is broken
The Immediate Cause was Beauregard firing on Fort Sumter. The Intermediate Cause was the secession of the Confederate States. The Ultimate Cause was Slavery.
cause there is a circuit failure of the wiper motor. or switch.
Dryness will cause the wipers to vibrate or jitter against the glass. If there is not enough moisture on the windshield (for example, a light sprinkle of rain) the wipers may move with a jerky motion. Also, the wipers could be very old, and the wiping rubber/vinyl could have lost some of its softness and flexibility. If you mean vibration when they are not active, the wind against the windshield could cause them to flutter if they are not properly seated. A clean windshield and new wiper blades will usually cure the vibration.
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The most common cause that windshield wipers stop working is a blown fuse. The windshield wiper motor may need to be changed is also common.
bad switch off the steering column.