This is extracted from the workshop manual. If you wish to pm me with an email address, I can send you the manual pdf file.
13.Headlight Washer
A: REMOVAL
1) Disconnect the ground cable from the battery.
2) Remove the front grille. <Ref. to EI-18, REMOVAL,
Front Grille.>
3) Remove the headlight. <Ref. to LI-13, REMOVAL,
Headlight Assembly.>
4) Draw out headlight washer hose.
5) Disconnect hose (A) from valve (B).
NOTE:
Washer fluid may drain from valve. Put a pan under
the valve, then disconnect valve from hose while
pinching the hose edge.