there is a wire plug hanging from under the car, it’s next to a wiper fluid tank - would appreciate your ideas.
Looks weathered and chewed up. If the turn signal and other running lights in that corner are all operating normally, I don't think it's important. Posted via the PriusChat mobile app.
You’re in a much better position to ID, than responders looking at a plug close-up. no warning lights on dash? AC working?
It would be a lot easier to identify with the wire colors visible, rather than hidden behind your fingers.
I don't see an answer to the obvious question as to whether the washer pumps (as well as lights) function.