i have a 91xj
i had my front end off repainting it, once all was said and done with that i put everything back in place and my windshield wipers dont work.
i cannot figure this out. the circuit breaker (fuse, whatever) seems fine, i went to a scrap yard and pulled one and tried changing it out to see if that was the issue. they both hummed while they were connected. the motor doesnt even make a sound when i hit the switch.
is there a wire loose? maybe i knocked a ground out somewhere? does anyone have any clues?

 

Check the ground from motor to the body, try a test light connected to a good ground and touch the body of the wiper motor (with it turned on) one of 2 things will prob happen 1) the wipers will work or 2) the test light will light up indicating a bad ground.
Good luck

 

i cant even find the grund wire to test it. its rediculous

 

hey i am having the same problem with my 87 xj, i just put a new circuit breaker on there and still not working . The fluid isnt working in the front either? Any ideas , its getting power to the motor . Maybe ground? idk this sucks bad because its almost summer here in alaska and i need to get it ready to take out! are the two conected? (motor and washer) idk it was working before i parked before winter> please help?

 

Can't guarantee this is it, but the wiper switch has the highest amp draw of all the components grounded here.

Improving the Instrument Panel Ground
The ground point for the complete instrument cluster on your XJ or MJ is located up under the driver’s side dash. If you lay on your back and look up under there with a flashlight, without wearing a hat, you will see a black wire attached to a shiny piece of metal almost directly above the hood release ****. The screw will have either a ¼" or 5/16" head on it.
This ground point is responsible for handling the ground circuit for the following items: Dome lamps, Seatbelt and key warning, trans comfort switch, wiper switch, headlamp switch and delay module, fog lamp switch, cargo lamp switch, all instrument panel grounds and illumination, power windows and door locks, cruise control dump valve, and a few more things.
The problem is that where the ground point is located does not have a good contact with the chassis where the ground should be. The solution is simple.
Make up a jumper wire with #10 gauge wire about 10" long. On one end, crimp on a ¼" round wire terminal. On the other end, crimp on a 3/8" round wire terminal.
Remove the screw from the existing ground wire and attach the small terminal of your jumper so that the original wire and your new jumper share the same attaching point, one over the other.
Look above the driver’s side plastic kick panel just forward of the top of the hood release ****. You will see an 8mm stud there. Attach the large terminal end there with a washer and nut over it tightened securely.
**Special note for Comanche owners: Make your jumper wire 12" long and attach it on the driver’s side kick panel close to the fusebox on the 8mm stud.**
　
Revised 11-29-2011

 

this jeep is a wire nightmare! i am having lots of issues with wiring (incomplete) like there arent any radio wires in the dash at all and it is a rats nest under the drivers side dash ! so i was wondering if you would have some pics maybe or be able to tell me what options do i have with the radio wires ? thank you

 

Wait a minute. Your wipers don't work and you're more concerned about your radio?

http://snowboard247.blogspot.com/200...ring-info.html

 

Had this same problem today with a 97 Cherokee, and the fuse was fine, and couldn't find any problems with the wires...turned out that the bolts on the wiper motor just needed tightened down. (After a pain of getting the wiper mechanism free of course...) Hope this helps!