XKR 2010 washer pump not working

[The Horse]

The windscreen washer pump on my 2010 XKR convertible has packed up.
Any idea where it is located and how I can get to it to test the voltage at the pump ?
Thanks

[Avantime]

I had the washer pump replaced on my XFR (2010) - the part is only about £35 I believe, plus an hour to fit.