Bad wiper switch or bad ground?
01-05-2017, 07:47 PM
#1
Newbie
Thread Starter
Join Date: Nov 2016
Location: Bethel, AK
Posts: 27
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0L
Bad wiper switch or bad ground?
My 90 XJ wiper motor seems to have intermittent power. Every now and then it will work on low but quit in the middle of it's stroke. The relay doesn't even work at all. Trying to see what you all think what the the culprit may be. Switch? Motor? Module?(the one under the steering post), Bad ground? Any leads to this problem will be helpful. Thanks, Curtis
01-05-2017, 09:46 PM
#2
CF Veteran
Join Date: May 2012
Location: Lost in the wilds of Virginia
Posts: 7,964
Received 952 Likes
on
767 Posts
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
1. It never hurts to clean your grounds. A lot of strange problems can be solved that way, and it's pretty close to free.
2. Got a meter?
2. Got a meter?
01-05-2017, 11:18 PM
#3
Newbie
Thread Starter
Join Date: Nov 2016
Location: Bethel, AK
Posts: 27
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0L
The switch inside has been changed before. Maybe I will just check to see if it need replacing. I'll check the switch for any grounding issue that might have come up. Still need to finish cruiser54's steps. I'll pull it into the shop and start ohmaking reading.
01-06-2017, 07:24 AM
#4
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,876
Received 1,526 Likes
on
1,238 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Unplug the intermittent wiper module and plug the harnesses together without it. See what happens.