02 Yukon Rear Wiper

[rescuemike]

I have an 02 Yukon and I cannot get the rear wiper working, I have replaced the motor and there seems to be power getting to it but I'm thinking not enough. I had heard that there is a wiring harness that runs from underneath the vehicle to the back door, does anyone know where I might find this???
or if there might be something else that someone is aware of to cause this??

Please let me know

Thanks Mike

 

[Rivieraracing]

Have you hooked up a voltmeter to the plug that goes to the wiper motor, that will tell you if you have a power problem?

 

[rescuemike]

Yes I have and gthere is power there but it seems like there is not enough under load, sometimes the wiper will move a bit, other times it won't but you can hear the motor running

 

[gmtk]

I've been dealing with this for 6 months now. I have a 2002 Z71.

When I turn my switch on, sometimes the wiper will work, sometimes it won't. Sometimes when it does work it's really slow.

I have replaced the motor, and the switch on the dash. Both no no avail.

I've spent hours upon hours searching for a solution to nothing. I'm beginning to think it's sometime in the computer.

If you find a solution let me know.

 

[gtbigup01]

I don't know if this will help much but this happened to mine shortly after i bought mine last year, worked fine then you just stopped all of a sudden, all you would hear is buzzing. Took it to the dealer and they didn't try to rip me off or anything. $30 later it was working because of some internal loose hdwr. So before you go out throwing parts at it, just have the pros look at it and Maybe it will be a simple LOOSE nut that needs to be tightened.