ABS Brake Shuttle Valve Modulator for Land Rover Discovery 2 99-04 for SWO500030Product Description: ABS modulator repair kit costs considerably less than the full ABS pump and is worth a try if you have problems such as ABS light on or shuttle valve fault code ABS pump fault code Inlet outlet valve fault code. Applications: for Land Rover Discovery 2 II 1999 2004 (Note: ABS modulator with part number SWO500030 fits on to the Discovery 2 which is the two pin switch for the anti lock braking system.) Part Number : SWO500030