89 YJ Wiper Woes - JeepForum.com
LinkBack Thread Tools
post #1 of 5 Old 10-24-2011, 07:35 PM Thread Starter
Registered User
1989 YJ Wrangler 
Join Date: Mar 2011
Location: crawfordsville
Posts: 16
89 YJ Wiper Woes

I attribute this problem mostly to my lack of waving at other jeep drivers as they pass and happily wave. So, if anyone can help me with this issue I promise to return the wave for a period of at least two weeks. Problem - Wipers not working. Symptoms - Turn on switch and nothing. What I have done so far - Checked fuse, checked circuit breaker (assuming normally closed, good continuity good) Jumpered motor directly to battery, motor turns, When I check the incoming wires, assuming green is ground, black and white are high and low power I get -12v at both. I'm not real sure if the last part is correct regarding the high and low power but I'm definitely getting -12v instead of just 12v. This is the part that has me a little confused. Anyway, any help is appreciated and will be returned with happy jeep waves.



Last edited by mgfi26; 10-24-2011 at 07:36 PM. Reason: spelling
mgfi26 is offline  
Sponsored Links
post #2 of 5 Old 10-24-2011, 07:50 PM
Registered User
1990 YJ Wrangler 
Join Date: Jun 2008
Location: st. louis
Posts: 2,116
See wiring diagram in this thread. At the motor white is low, red is high, black is ground. Green and blue have to do with parking feature.

dancytron is offline  
post #3 of 5 Old 10-24-2011, 07:53 PM Thread Starter
Registered User
1989 YJ Wrangler 
Join Date: Mar 2011
Location: crawfordsville
Posts: 16
Thanks for the input. I did forget to mention that I also used the ground direct to the battery and came up with -12v. That's what I don't usnderstand, why I'm getting a reading of -12v?

mgfi26 is offline  
post #4 of 5 Old 10-24-2011, 08:11 PM
Registered User
1990 CJ7 
Join Date: Nov 2008
Location: Ga
Posts: 5,145
If you have intermittent wipers, there is a module that is plugged in-line in the wiper harness under the dash. (IIRC, it is velcroed to a flat piece of metal under the dash left of steering column).

Pull the wiring down and remove the intermittent box, then just plug the harness back together without the box. See if your wipers work now. You should have OFF- LOW- HIGH and park.

These boxes give problems, though it is often just 20+ year old connectors that are gunked up, a good cleaning often makes them work again.

418 miles on 19 gallons of gas. Can't beat the BBD !
Old4X is offline  
post #5 of 5 Old 10-24-2011, 08:25 PM Thread Starter
Registered User
1989 YJ Wrangler 
Join Date: Mar 2011
Location: crawfordsville
Posts: 16
I knew there was a module and was looking for it earlier. When you said velcro, that helped me find it. I removed it and plugged the two harnesses together directly and that did it. Now though, the motor runs but the wipers don't move. I'm assuming there is a stripped gear or at least improper connection mechanically. Will have to check tomorrow, too tired tonight. Thanks for the help though!!
mgfi26 is offline  

Quick Reply

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
wiper linkage and wiper speed? jeeptim YJ Wrangler Technical Forum 1 09-04-2011 02:05 PM
Windshield wiper / wiper motor mms1946 TJ Wrangler Technical Forum 8 11-28-2009 08:25 PM
Wiper Switch Woes Jim93YJ YJ Wrangler Technical Forum 19 04-18-2007 07:37 AM
Wiper woes K2Racing YJ Wrangler Technical Forum 10 01-05-2005 09:25 AM
Hardtop rear wiper.....is it supposed to have wiper washer too?? GregM TJ Wrangler Technical Forum 6 12-29-2002 10:48 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome