Check your fuses. Dash lights and tail lights are on the same fuse. Check the fuses electrically, just looking at them is not enough. Replace any blown or damaged fuses with fuses of the same rating, NEVER use a fuse of a higher rating. If the fuse blows again, you have a short circuit to ground. Check all the front and tail lamps and their wiring and don't forget the trailer connector if you have one fitted..