2012 Wiper+Wash goes on by itself

[CTScott]

Originally Posted by lopat08865

Disconnected gray wire & will see if wipers ever come on by themselves. If yes then it's likely wiper motor, if no then likely a fault in the washer motor ground wire?

Disconnect of gray wire killed all washer function. Was hoping to find I could still use stalk to wash, followed by then using stalk a second time to do a wipe. Oh well.

But got me thinking, maybe I could splice in a toggle switch on the grey wire? Then, whenever I needed wash, I could toggle-on and use the stalk for a wash-and-wipe? Otherwise, keep it toggle-off, so I always maintain my access to wiper-only function? Any flaws or potential downsides you envision?

Thanks again, sir, as you saved me at least $107 for a dealer diagnostic, plus expectedly hundreds more for a fix. May ultimately end up surrendering to them for a fix, but in the meantime I have hope that, with your help, I can handle this myself for under $50 :-)

Yes - Removing the grey will disable the washers, but if you want to still be able to use them on demand, until you figure out of the issue is gone with them disconnected, a toggle switch on the grey would do the trick.