Headlamp washers?

I was wondering if anyone knows if there is any electrical connection to the piston/spray heads or do they move forward and operate with ‘water’ pressure from a separate pump or valve.I wish to ‘fix’ the cover plates permanently so all I would have to do is disconnect the feed hose and blank it off.

Safe driving everyone
David

I don’t know the answer to your question, but, if you look on one of the parts supplier websites, you may be able to find an exploded diagram that could help answer your question. Neither of my washers work, so I would like to get new ones.