Look first check the relays as myhem indicates but the truth is that kind of problem, if the lights light but very short the problem is a land, it disconnects one of the headlights and food direct from Vateria with two cables and if it turns on how it should be enthaps to the problem is a land or a current, the Susukis happens to this problem because of the teleceoming Its voltage if the voltage is correct then the Earth is the problem if you do not save how to do it, just check first, greetings.