I have just bought a '00 IS200 in UK and drove it back to Ireland,
when I arrived home I desided to start lookin at everything... then came
across the headlight washers and proceeded to push and only the driver side
worked... didn't mind really it is 8 years old but then I did it again a few days later
and it switched around and now only the passenger side is working... woundering is it
and easy fix job or what???

Welcome to LOC.

I think the headlight washer jets maybe sticking, you might be able to free them up by spraying some WD-40 on the mechanism (lift out the washer jets). Worth a try...

Okay will do...

Ill get back to you and let ya know how it goes!!!

Is the reservoir full? The system works on water pressure so perhaps there isn't enough water in the tank to push both up..........

Well if it is the one for the window washers.... it is defo full!!! Just refilled it a day ago!!!