One highbeam not working

[Measuring]

Hello!

I've noticed that my left high beam doesnt work on my s13. Both lowbeams work great but when I flip the highbeams on. The left headlight goes black and the right one works just like it should.
Any idea on why this might be happening?

Thanks

[gaz_moose]

check the small headlamp looms haven't melted.

[5280VertDET]

Switch the headlights, that will let you know if it's the filament or the wiring.

[gtrpryde]

I had a similar problem. I ended up rewiring the lights with a new relay off the "good working" low and high beam, rather than try and track down a short in the wiring.