2001 Vauxhall Vectra

Abs light is on
looked at the sensers can, t see anything wrong
connected ok
just had m.O.T and failed on a.B.S. Light being on only.
brakes seem to be fine ps. Stop on a 10p pease
brake test on m.O.T readings good.
but thay had to fail the car because of a.B.S. Light was on.
can you help me.

regards martin