Headlight stayed on highbeam only, what can i do to this kind of problem? on 1990 Volkswagen GTI

not so sure if there is a relay or fuse on vw gti headlight.. i don't like fixing these kind of car it's my friends ride.

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1 answer 2 comments
Most likely the multi function switch.
where exactly is that located? the multi function switch! thanks
The switch you use to change from low to high.