i think have the same problem w/ TS,

ride is starex grx crdi 06, have bright/high beam but no dim/low beam on the left side of my headlamp, driver side but the right side is ok...

no busted fuse, i dont know the relay, bulb and bulb contact on the headlight switch to be checked...DIY first before consulting alaktrician, hehehe

but any inputs can be of great help, TIA!