so to be serious, what car do you have, ABS light on signifies an ABS error which means you have no ABS working (ABS means Antilock Braking System) it is most likely a sensor failure on the wheel but could be just about anything, if you are driving a Land Rover you are looking at an expense in excess of 25,000 to fix it as it will 100% be the ABS modulator failed, common problem on them and expensive to fix