right chaps , hope this helps, ive sufferd with this a couple of times the first time 2 years ago i dried out the board and all was well, just getting in the car with wet feet or snow on them can create enough condensation too give u a short!, this time in the snow it happend again so got a new fuse board from the breakers, after fitting i had all lights butt not the dip beam, so i got the alarm control unit from the same breakers total cost of parts 30 pounds, this has cured perfect . the short on the board can short out the alarm control unit causing this fault my old acu smelt of burnt out wires so i hope this helps. my prob is now solved, i only payed 20 pound for the board and 10 for the acu.