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Hello. Simply remove the 'windshield wiper' fuse. It seems your windshield wiper motor is 'hard wired'; comes on when you turn on the ignition switch. That's not good!
Hard to say what's wrong without testing thing's . Is there B+ voltage to the wiper switch ? B + voltage to the wiper motor ? Do you know how to use a voltmeter ? How to test electrical circuits ?
Here is a factory service manual list of componets involved .
Wiper/Washer System Components
The Wiper/Washer System consists of the following electrical components:
• Accessory relay
• Heated washer nozzles w/XA7
• WASH NOZ 10A fuse
• Windshield washer fluid level switch
• Windshield washer pump motor
• Windshield wiper motor
• Windshield wiper motor module
• Windshield wiper/washer switch
• Wiper/washer switch 10A fuse
• Wiper motor 30A fuse
If that happens, your windshield wipers will not work at all and you won't be able to clear any water, dirt, or snow that ends up on your windshield. Replace the windshield wiper motor right away. The windshield wiper fuse is burnt out. When the windshield wiper motor is overloaded, the fuse burns out.23 Nov 2015
your wipers were probably frozen to the windshield, and when you turned them on the gear snapped. future reference, if you know its going to be snowing or dropping below freezing, put your wipers up away from the windshield and you wont have this issue.
To troubleshoot car windshield wiper problems, you need to thoroughly
investigate problems with any of its operating parts. Here are some of
the things that you need to check to determine why are your car
windshield wipers not working.
Check Wiper Motor
The wiper motor is the driving force of the windshield wiper. Feel the
motor and listen to a humming sound. If there is no humming, the motor
is the problem. Check if the motor is working properly and see to it
that its electrical connections are made properly. If you find that the
motor is dead and beyond repair, get it replaced immediately.
Check For Break in Connecting Wires
The connecting wires of the motor sometimes go loose and that may cause
the windshield wipers to stop working. Also check the battery plug
connection which the motor has. Connecting the loose wires properly or
fixing/replacing the plug might solve your problem.
Check Wiper Switch
Another wiper assembly part that can malfunction is the wiper switch
itself. Check for switch malfunction and if you find that is indeed the
problem, get it replaced from a mechanic.
Check for Bent Wiper Arms
Bent wiper arms can cause the operation of the wipers to be hampered. If
the wiper arms are bent beyond repair, get them replaced immediately.
Check For Blown Out Car Fuse
A blown up car fuse could be the culprit that has stopped the windshield
wipers from working. Check the fuse assembly under the dashboard of the
car. Replacing a blown fuse might fix the problem of windshield wipers
not working.
Windshield Wiper Sprayers Not Working - Things to Check
Sometimes the windshield wiper sprayer stops working which can be very
annoying. The washer mechanism is a self cleaning mechanism for the
windshield. Here are some of the things that you need to check in case
it is not working.
Check Windshield Washer Motor
The windshield washer mechanism might have been impaired due to the
malfunctioning of the wiper washer motor. Check if its working and get
it replaced if it is beyond repair.
Check Windshield Washer Fluid Level
Sometimes the washer doesn't work because the washer fluid levels are
not filled to requisite levels. Filling in fluid might restore normal
functioning.
Check For Broken Washer Hose
The connecting washer hose that connects the reservoir to the nozzle,
might be broken or worn out stalling the overall operation. Check the
hose for leaks and get it replaced.
Check Washer Nozzle For Clogging
Last thing to check is the nozzle of the washer for clogging. An
obstruction in the washer nozzle might be the reason for windshield
wiper sprayers not working. Using a pin, clean the clogged nozzle. This
might restore the sprayer to the normal working condition.
YOUR WIPER MOTOR COULD HAVE BINDING LINKAGE AND PIVOTS.TRY LUBRICATE THEM WITH WD40.TRY NOT TO GET ANY ON WINDSHIELD.IF THIS DONT WORK WIPER MOTOR COULD BE FAULTY.
Check for power at the wiper motor. The door is vacuum operated the wiper motor is electric. If there is power present the motor is bad, if not check the fuse, and then check the wiper switch. My guess is that the wiper motor is bad.
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