Hi all i bought a freelander to tow a caravan, i know nothing about car engines, i do have 3 spanners though but none of them fit anything, so basically havent a clue. the downhill light and abs light came on, took it to dealer said it was a wheel sensor, this cost over £200 and 3 weeks later lights are back on, i bought a code reader plugged it in and it says it cant contact the brain or whatever, does anyone have any ideas why it wont work Help.