Nissan Repair: Headlight problem, nissan vanette cargo, main beams

Question
Hi  I have a 1999 Nissan Vanette Cargo.All of a sudden the main beam wont come on,sidelights will.The full beam wont stay on but will flash.If I slowly turn the light stalk I can get one of the lights main beams to come on.I have already checked the headlight dip control unit and its not that.Would the relay be the problem?

Answer
If the lights flash it could be a problem with the security system, (alarm) I would recommend a check of BCM (Body Control Module), by a quilified technician. Also the headlight relays should be checked as well as the wiring between the headlights-BCM and light switch.