Anyone know what would make my front wipers just stop? 2004 Cayenne turbo. I can move them passively with no problem. I can get the rears to work, fuse is good, and I can hear the motor working as usual back and forth, but nothing moving either front wiper. Linkage? Thanks for any help.

Fixed. Linkage nut had just come off? The wiper arm has cracked plastic where it attaches to the linkage, so that must have grabbed the nut and loosened it. Looks like I need a new wiper arm.