Wiper switch hookup

Thread Tools
 
Search this Thread
 
Old November 18th, 2017, 09:39 AM
  #1  
Registered User
Thread Starter
 
drkearnel's Avatar
 
Join Date: Oct 2017
Posts: 36
Wiper switch hookup

When I picked up my 64 Cutlass it didn’t have he wiper switch installed, I have now found the switch in a box of “extras” tha came with.

Issue is I’m not sure which wire goes where. I’ve attached a pic of the wires and switch if anyone can help.

I think this is a 2 speed switch? From what I can comprehend from wiring diagram and how the motor is hooked up, the white wire is the washer motor and the green and purple are for wipers

any help would be great!




drkearnel is offline  
Old November 18th, 2017, 10:04 AM
  #2  
Administrator
 
oldcutlass's Avatar
 
Join Date: Oct 2009
Location: Poteau, Ok
Posts: 40,561
Going off the wiring diagram. The green is the wiper, the white is the washer feed from the switch. The purple is fed from the fuse box to the wiper motor, and jumpers to the washer. The single terminal on the switch should connect to the metal of the switch body when the washer is engaged and there should be a ground wire terminal in the 2 wire plug. The schematic shows a single speed wiper motor. Don't know about the black wire, possibly the heater.

http://circuitswiring.com/circuit-di...-85-part-2.jpg

http://www.oldcarmanualproject.com/t...re5765-288.jpg
oldcutlass is online now  
Old November 18th, 2017, 11:11 AM
  #3  
Registered User
Thread Starter
 
drkearnel's Avatar
 
Join Date: Oct 2017
Posts: 36
Originally Posted by oldcutlass
The single terminal on the switch should connect to the metal of the switch body when the washer is engaged and there should be a ground wire terminal in the 2 wire plug.
These switches are supposed have a ground wire? I thought they were grounded by the body when screwed in?

Which wire goes to which terminal on the switch?

the purple/black wire runs from the wiper motor through the firewall and is just loose with the green and white ones.
drkearnel is offline  
Old November 18th, 2017, 11:33 AM
  #4  
Registered User
 
Cincinnati Rick's Avatar
 
Join Date: Nov 2014
Location: Cincinnati, Ohio
Posts: 1,456
Originally Posted by drkearnel
These switches are supposed have a ground wire? I thought they were grounded by the body when screwed in?
Yes... Like Eric said. The wiper motor and the washer pump are fed with a constant hot. When the switch for either the wipers or the washers is engaged, a ground signal is sent to the respective motors.
Cincinnati Rick is offline  
Old November 18th, 2017, 01:00 PM
  #5  
Administrator
 
oldcutlass's Avatar
 
Join Date: Oct 2009
Location: Poteau, Ok
Posts: 40,561
Originally Posted by drkearnel
These switches are supposed have a ground wire? I thought they were grounded by the body when screwed in?
It looks like the single terminal is grounded to the body of the switch. According to the diagram the side by side connector should have a ground wire in it.

Which wire goes to which terminal on the switch?
The white wire goes to the single terminal and the green in the side by side connector connects to the other 2.

the purple/black wire runs from the wiper motor through the firewall and is just loose with the green and white ones.
Your going to have to verify that the purple/blk wire is in fact the one that goes to the motor. It should be hard wired in the fuse box.
oldcutlass is online now  
Old November 21st, 2017, 09:37 AM
  #6  
Registered User
Thread Starter
 
drkearnel's Avatar
 
Join Date: Oct 2017
Posts: 36
Thanks for getting back. I'll double check on the purple/black wire when I get home and update.

Originally Posted by oldcutlass
Your going to have to verify that the purple/blk wire is in fact the one that goes to the motor. It should be hard wired in the fuse box.
drkearnel is offline  
Old November 21st, 2017, 10:06 AM
  #7  
Old(s) Fart
 
joe_padavano's Avatar
 
Join Date: Mar 2007
Location: Northern VA
Posts: 47,311
Which wiper motor do you have - square or round?
joe_padavano is offline  
Old November 21st, 2017, 12:45 PM
  #8  
Registered User
Thread Starter
 
drkearnel's Avatar
 
Join Date: Oct 2017
Posts: 36
Originally Posted by joe_padavano
Which wiper motor do you have - square or round?
I honestly am not sure. It looks like a normal wiper motor to me haha It looks like this one below, if that helps.

drkearnel is offline  
Old November 21st, 2017, 01:08 PM
  #9  
Old(s) Fart
 
joe_padavano's Avatar
 
Join Date: Mar 2007
Location: Northern VA
Posts: 47,311
Originally Posted by drkearnel
I honestly am not sure. It looks like a normal wiper motor to me haha It looks like this one below, if that helps.

That is round. This is square:

joe_padavano is offline  
Old November 21st, 2017, 01:15 PM
  #10  
Registered User
Thread Starter
 
drkearnel's Avatar
 
Join Date: Oct 2017
Posts: 36
Originally Posted by joe_padavano
That is round. This is square:



Interesting, I'm new to the Olds scene, so that's news to me.

Yes I have the round wiper motor.
drkearnel is offline  
Old November 21st, 2017, 07:23 PM
  #11  
Registered User
Thread Starter
 
drkearnel's Avatar
 
Join Date: Oct 2017
Posts: 36
Originally Posted by oldcutlass
Your going to have to verify that the purple/blk wire is in fact the one that goes to the motor. It should be hard wired in the fuse box.
so I can confirm the purple/black wire goes from the wiper motor, through the firewall, and is hanging under the dash with the other wires right inside the wiper switch location.

the motor has the purple/black, a solid purple, and dark green

the washer pump has yellow and solid purple jumped from wiper motor.

crappy pic attached
drkearnel is offline  
Old November 28th, 2017, 04:39 AM
  #12  
Registered User
Thread Starter
 
drkearnel's Avatar
 
Join Date: Oct 2017
Posts: 36
So it looks like I have a third wire to the switch and motor that is not shownin the diagram.

Is is this because I have 2 speed wipers?
drkearnel is offline  
Old December 8th, 2017, 03:31 AM
  #13  
Registered User
Thread Starter
 
drkearnel's Avatar
 
Join Date: Oct 2017
Posts: 36
How would I bench test the wiper switch to make sure it is not at fault?
drkearnel is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bigoldscruiser
General Questions
8
August 7th, 2010 07:29 PM
oldolds51
General Questions
0
May 2nd, 2010 11:34 AM
ELECMAN
General Questions
1
September 28th, 2009 05:52 AM
macvic
Other
7
March 27th, 2008 04:10 PM
silverriff
Interior/Upholstery
2
February 25th, 2008 06:10 PM



Quick Reply: Wiper switch hookup



All times are GMT -7. The time now is 06:20 PM.