The dipped beams are activated by an earth signal from stalk unit H005 when the wheel is operated and reach control panel H090 at pin 17 connector D.Once a dipped beam activation command is received, control panel H090 excites T02 inside engine bay junction unit B001, from pin 8 connector A at pin 12 connector C of the junction unit. The relay then supplies power to front headlamps F010 and F011 via fuses F15 and F14 located in engine bay junction unit B001.The left headlamp signal is used to operate the headlamp alignment corrector (see E3080).