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Discussion Starter · #1 ·
I think mine is bad, wipers won't go to park, they just stop whenever I put the switch to off. I tested the motor (found a process on-line) and it checks good, will go to park when tested. Would like to find a guide to checking continuity in low, high, and off (park). Any help would be appreciated, thank you!
 

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Check the ground at the motor. Also, I believe these motors have a park switch built in that could be bad.
 

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I just checked my manual and there is a park switch in the motor and it is adjustable. Your switch has nothing to do with the park function.
 

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Ford factory service manual. Mine is in PDF and I cant copy the directions for you for some reason. I got the whole manual for around $16.00 online. Its been a lifesaver.
 

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Agree with the motor being the issue. I've never had a bad wiper switch, but have had to clean plenty of the motors to get them to park correctly.

This is the manual you want.

https://www.npdlink.com/product/sho...=manual&top_parent=200001&year=1970&year=1970


FYI -the PDF versions are nice if that's how you roll. From what I've heard, some versions are locked so you can't even print off the pages you need. Buyer beware.
 

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Since the motor runs, that is not the problem. There are two park switches- one in the dash switch, and one in the motor. One of them may be bad, or the connecting wires may be disconnected. This schematic shows how the system in a 69 works- I assume the 70 is the same or very similar since they are brother cars in most respects:
 

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Discussion Starter · #8 ·

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Discussion Starter · #9 ·
Since the motor runs, that is not the problem. There are two park switches- one in the dash switch, and one in the motor. One of them may be bad, or the connecting wires may be disconnected. This schematic shows how the system in a 69 works- I assume the 70 is the same or very similar since they are brother cars in most respects:
Thanks Mach1 Driver!
 

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It does look like there is a contact between Lo and Off in the switch. I suppose it could be dirty but I doubt it. I would focus more on the park switch in the motor.
 
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