Please explain how the wiper park circuit works - D-series.org

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Old 11-05-2015, 01:12 PM   #1 (permalink)
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Default Please explain how the wiper park circuit works

We ended up stripping out the column controls in our 91 hatch rally car and controlling the wipers with a toggle (on-off for low and momentary on for high). This works OK, but it would be better if the wipers parked after we were done with them.

I can't find a description of the park circuit anywhere. Anybody know how this system works?

Thanks.....
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Old 11-05-2015, 04:40 PM   #2 (permalink)
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I looked into the 5-wire wiper motor on an EF nearly a decade ago for other reasons, but I recall one of the wires controlled the delay. IIRC if you zapped the wire, the motor would rotate once. The switch on your stalk connects to a timer relay that essentially "blinks" that wire ever second or two.

I was thinking how that relates to the park for high/low, and the following makes the most sense: When you turn the original stalk switch from low to off, it sweeps past delay. When high/low is turn off the wipers don't park, but then blipping delay finishes the "rotate once" of the delay mode & parks them.

That would make sense if you think what happens when you SLOWLY switch from low to off - the wipers freeze til you rotate enough into the delay part. Stalks w/o delay probably still have the delay contact & wire, just no timer relay or "click" for that position.
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Old 11-05-2015, 05:24 PM   #3 (permalink)
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Do CRXs have a park circut? Because I know if you push CRX wiper blades up long and hard enough when they are in the down position they will do a whole cycle and try to return down, even if they were not electronically activated...

I think it took about 145 mph for a couple minutes before they did that.
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Old 11-05-2015, 07:07 PM   #4 (permalink)
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I found this.

https://www.youtube.com/watch?v=1Ww5-pmiokc

and the motor has 5 wires coming out of it. Is this how it works in our hatch?
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Old 11-07-2015, 09:35 AM   #5 (permalink)
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The park circuit is internal inside of the motor. Older Honda wiper motors are very reliable. New generation ones fail to park.
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Old 11-30-2015, 09:53 AM   #6 (permalink)
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May i know about its control circuit?
Also what are the specifications for the motor?
What battery it requires based on its voltage and current specifications?
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