I have a 1993 wrx impreza and I have experienced a noise kind of like a fast ticking noise from the a.b.s unit under the bonnet, and the a.b.s light comes on the dashboard this has happened twice now the first time I disconnected the loom from the a.b.s. unit then re attached several minutes later the noise disapears and the warning light goes out ?? I have since had to do this again. Can anyone help!!!!!!!!!!!!!!!!!!!!