Winshield Wiper/Washer Issue

[2000tahoez71]

From time to time, my washer motor does not come on. I have unplugged the wires at the motor and given it 12V directly and it comes on. Also, the windshield wipers tend to have a mind of their own at times, especially when I use the "mist" feature. They will turn on and run for 15-20 cycles, and often stop in the middle of their cycle. Multi function switch issues?

 

[2000tahoez71]

Well just did some more research and it usually is inside the module. Gonna pull it and have a look when I get a chance. Never thought about the washer motor getting power from inside the control module.....

 

[lesterl]

Could be circuit board, solder all the pins on the connector that you unplugged the harness from. Just a possibility, but have had it happen several times.... could also be a bad multifunction switch too.....