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Windshield wipers turn on, but will not shut off unless vehicle is turned off. Any Suggestions?
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BuzzelliDesigns
New User
Jun 21, 2015, 7:08 AM
Post #1 of 4
(1663 views)
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Windshield wipers turn on, but will not shut off unless vehicle is turned off. Any Suggestions?
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Just bought this 2003 Honda Odyssey, 2 1/2 months ago and it has had this problem since the minute we purchased it. When vehicle is running and we turn the windshield wiper switch to the "on" position, they turn on with no problems. They will even change speeds accordingly based on the position of the switch. However, they will NOT turn off when we turn the windshield wiper switch to the "off".
The windshield wipers WILL turn off but ONLY if we do the following. 1. Turn the windshield wiper switch to the "off" position, WHILE the vehicle is still running. 2. Completely shut the vehicle off.
****It is at this point, when the vehicle is restarted, the windshield wipers will be off. Please let me know if you think it is the switch or the motor? Or maybe even another issue that we may not be considering. Thank you in advance for your replies. Regards, Angela
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 21, 2015, 10:57 PM
Post #2 of 4
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Re: Windshield wipers turn on, but will not shut off unless vehicle is turned off. Any Suggestions?
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Angela - nobody has been by yet so I'll struggle with some ideas. Since it was like this when you got it you nor we can have any clues from any history most likely.
OK - So the guesses and reading thru what I think you meant (correct that if wrong) is wipers will quit if you shut them off while running THEN shut off car they'll stay off - right? Otherwise they just stay on?
That's what I'm basing guesses on. Washer motors usually trigger wipers to stay on so anything that makes it think washers were requested that failed could be the source issue. At the multifunction switch or slight maybe a stuck relay but tend to think the switch.
A real maybe for quick temporary fix. If you can find the washer motor that must have failed if it was enabled and run dry by now for unknown time unplug it. That just might allow wipers to quit but have not washers and probably don't now - right?
Sorry - best I can guess from here on this issue,
T
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Discretesignals
Ultimate Carjunky
/ Moderator
Jun 22, 2015, 4:25 AM
Post #3 of 4
(1633 views)
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Re: Windshield wipers turn on, but will not shut off unless vehicle is turned off. Any Suggestions?
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This doesn't act like a wiper switch problem. There is a park switch in the wiper motor that closes when the wipers reach the park position and opens when the wiper motor isn't in the park position. This is how the multifunction control module knows the position of the wiper motor so it can turn the motor off when the wipers hit the park postion when you turn turn the wiper switch off. If the module doesn't sense the voltage from the park switch circuit, it will keep the motor running on low speed with the wiper switch turned off. The multifuction control module is basically a body control module and one of its function is controlling the speed and timing of the wipers.
The park switch is inside the wiper motor assembly. You can check to see if the park switch is working by using a 12 volt test lamp connected to battery negative and back probing the wiper motor electrical connector on the blue/white wire. When the wiper motor isn't in the park position the test light will be off and when the motor hits the park position the test light will be on. Basically the test lamp should be flashing with the wiper motor running. If it doesn't flash, the park switch is messed up in the wiper motor.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jun 22, 2015, 4:40 AM)
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 22, 2015, 6:00 AM
Post #4 of 4
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Re: Windshield wipers turn on, but will not shut off unless vehicle is turned off. Any Suggestions?
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I think you are onto it DS. Forgot all about park position. Just for my info is it possible that if wiper arms are (most can't) not on star that turns them properly they can't reach full park? Like from getting a new windshield or any reason they might be removed?
Obviously not sure of much with this. GM got the gold medal for this type of bull for ages
Tom
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