The headlamp washer cleans the headlamp lenses as the windscreen is being cleaned.The headlamp washer function is managed by the control panel that automatically operates the headlamps - with dipped or main beams on - when it receives a command from the stalk unit.The headlamp washer consists of a pump that sends detergent to a nozzle located in the bumpers. This in turn sprays a powerful jet on the headlamp.A timer activates the headlamp washer pump by means of a series of pulses lasting about half a second.The headlamp washer circuit is protected by a fuse and governed by a special relay locted in the junction unit beneath the instrument facia.