First find the location of the washer pump, in to days cars under the wheel arch behind the wing splash guard connect a 12v test light across the pump connections operate the washer pump the test light must light,(replace pump as probably seized,) no light check fuse box, and wiring/ and the power supply to the pump including body earths until you get a power supply down to the washer pump
NOTE make SURE you have the radio code (BEFORE )you start pulling fuses out.
wirecutterman, February 2008