It is possible that the wiper pulse board is defective.
The wiper motor has a switch inside of it. When they are turned off and the wipers go to the down position it trips the switch in the motor that tells the computer they are in the down position. If that switch in the motor is faulty, the wipers are repositioning until the switch is tripped to the off position. THE FIX.... Replace the wiper motor.
remove the wipers, turn on wiper switch, turn off switch, reinstall wipers @ bottom position torque nuts enough to secure the arm. turn on switch readjust as needed.
Almost all parts super stores will do the replacing for you if you buy the blades yhere.
If the windshield wipers won't turn off on a 2000 Chevy Blazer, check the wiper relay switch. This is usually located in the engine compartment fuse box on top of the battery.
Wiper motors have an internal switch that keeps the wipers running after you turn them off. The switch stays active until the wipers get to the "PARK" position and if the drivers wiper switch is off, then the wiper motor is turned off internally. I suspect the internal switch has failed. Unfortunately the switch cannot be easily replaced. Fortunately, wiper motors are not terribly expensive.
Depending on the year of the Blazer some good accessories for the 2005 Blazer could be some new wipers, Exhaust, Spark plugs and ignition, brakes, transmission and drive train, fuel injector and some new shocks and suspension.
Have you checked the fuses for the wipers? It may be that simple.
I have a 1995 S-10 Blazer and a 1986 Astro. They both do this especially when using the turn signals. It's worse in warm weather. We had the Blazer's control wand changed at the dealership twice to fix it. I assume its a design problem. There's just to much jammed into the area and too much power and it acts like it jumps circuits the way my old VW Beetle would. Honk the horn and the wipers would cycle.
Self switch wipers switch off at a pre-set point regardless of when the driver turns the wipers off Self parking is a development of this and moves the wipers below the screen when not in use. This improves vehicle aerodynamics & reduces injuries to pedestrians For more info try Fundamentals of Motor Vehicle Technology Book 3 or Bosch Automotive Electrics / Automotive Electronics
that is another name for your turn signal switch cause it has multiple things on it like your wind schield wipers and your cruse control and other things that is why it is the multi function switch It is in the steering wheel.
These vans are notorious for this. Replacing the wiper switch will fix it. The wiper switch is the wiper and blinker control. (the entire black assembly on your steering column where you turn your blinker and wipers on) contact me a sideburns2009@gmail.com
i would imagin you are talking about a gm vehicle, i have the same roblem in my blazer and know 2 others with the same problem,its probably electrical either in your switch on the lever or there may be a module that needs replaced.