Took our car for MOT this morning and glad to say it passed. Only thing was as I got in to drive home there was an awful smell, I thought I had stepped in something. Its the window washer as the water seems to have stagnated.
Might try some Milton steriliser inside the washer bottle unless anyone has a better solution.

Peter, if you say any break in the circutry will cause the ABS warning light to come on you can try bridging the circuit, (connecting the wires together) as a tempory measure if your sure its just a nuisance fault.