windshield wiper help
Thread Starter
Instructor
Joined: Feb 2008
Posts: 211
Likes: 2
windshield wiper help
1970 corvette.After seven years a friend and I turned to the wipers which have never worked. Question #1 The wipers do not work when the switch is on low or high but do work when I push the washer button in. Do you think it is the switch mechanism or something else and what steps would you take to further diagnose? Question #2 The wiper motor always has 12 volts running to it even when the ignition and wiper switch is off...is that correct? Any advise would be very much appreciated. Thanks...
Drifting
Joined: May 2008
Posts: 1,647
Likes: 5
From: Roseville CA
Yes, it's a switched ground system more or less. The switch grounds through console and I've heard the consoles can break or crack. which causes an open circuit.
I thought pushing the button just makes the switch slide to the low position (in addition to activating the washer pump). That said, is everything wired up correctly? The Wilcox site has a great video on how the wiper motor works.
I thought pushing the button just makes the switch slide to the low position (in addition to activating the washer pump). That said, is everything wired up correctly? The Wilcox site has a great video on how the wiper motor works.
Safety Car
Joined: Oct 2007
Posts: 3,729
Likes: 267
From: Austin Texas
Corvette of the Year Winner 2017
2016 C3 of Year Finalist
Gnd the switch, and test. ???
orginally there is a small spring clip on the switch which makes contact to the console bezel for Gnd,
very poor design for a fiberglass car. I solder an extra gnd wire to the clip and gnd. it.
orginally there is a small spring clip on the switch which makes contact to the console bezel for Gnd,
very poor design for a fiberglass car. I solder an extra gnd wire to the clip and gnd. it.
Last edited by 69Vett; Jan 8, 2012 at 10:04 PM.
