OK, Sorry, this an Expedition and I'm out of luck anyplace else. My windshield washer is not working. the rear glass works. I've replaced the pump, and the control switch, blinker stalk on the column. I made a jumper ground wire and hooked it to the pump. when I did this, it worked. Where do I look for a relay? For those not familure, there is only one pump for both glasses. Some how it changes polarity reverses the flow direction to switch from windshield to rear window.

2017 Ford Expedition Limited.

 

Wow, that was an actual scenario they placed forth in one of the classes I went to from Ford. I guess they figured it would be a common failure. Unfortunately I only have wiring diagrams for F150's after 1999. Have you asked this on Expedition forums?

 

I did not find any forums on Expeditions. I'm a Ford guy through and through. This is getting me. Such a nice truck, such a pain in the *** problem.

 

Your googlefoo is weak, this popped up first, https://www.expeditionforum.com/