Intermittent ABS

Ford Escort 2000 registration owned from new.
ABS braking activates intermittently under light braking, at slow speeds, even though road sursface is clean & dry. Also ABS light comes on, intermittently, not necessarily when ABS braking activates. At the moment ABS light stays on when engine running so I had chance to get someone check if it flickered when I jiggled the flexible abs cable at the wheel and at the junction with wiring loom. It stayed on with no flicker so electrical conections seem sound. 6 months ago I changed the ABS cable on one side when accidentally damaged during replacement of wishbone. No trouble for 5+ months til now. Can anyone help please.