<VV> Wiper motor question

[Jim Houston]

Yep, that was suggested and I tried grounding the case and it works as 
advertised...  the washer is another matter - it runs all the time 
(without having the button pushed)...  there is a gear that is supposed 
to rotate around and block the pump from running and it doesn't seem to 
be working.  I'll have to figure that out next...

Thanks for all the suggestions...

Jim Houston

corvairduval at cox.net wrote:
> No, there is only one 12 volt input, but several grounds. The switch
> grounds the motor. If two speed, it can ground either the high or low speed
> winding. If there is a washer circuit, the switch will ground the washer
> solenoid lead. The switch is not in the 12 volt hot lead.
>
> For the park function to work, the case of the wiper must be grounded.
>
> Frank DuVal
>
> Original Message:
> -----------------
> From: Dave Keillor dkeillor at tconcepts.com
>
>
>
> Essentially there are two 12 volt inputs to the motor.  One goes through
> the wiper switch and feeds voltage to the motor as long as the switch is
> in the "ON" position.  The second feeds the motor through an internal
> "park" contact that rotates with the motor shaft.  Turn the dash switch
> off and the motor will continue to run until the park switch opens up.
> The fact that your motor runs indicates it's good.  If it fails to park
> when connected to the car correctly, you probably have a bad contact
> inside.
>
> Dave Keillor
>
>
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