Blown bulb.
bulb
H1
Change the globe or lamp. H4 type globes contain the high and low beam, so whilst low beam is working OK the high beam part is likely blown.
Why the hi beam and day light are not working but the low beam are working good on sunfire 99?
replace passenger side low beam headlight
where abouts are you and i will do it for you
If you haven't already, replace the headlight. Chris
Push the indicator stalk forward
Possibly the high beam element for the passenger side is broken. There are two elements inside those lightbulbs, one for low beam, the other for high beam.
There could be several reasons why the passenger side main beam isn't working. Common issues include a blown fuse, a faulty bulb, or a wiring problem specific to that side. Additionally, the headlight switch or relay may be malfunctioning. It's advisable to check these components systematically to diagnose the issue accurately.
To adjust the light beam on a Vauxhall Corsa, park the car on a level surface about 10-15 feet from a wall. Turn on the headlights and mark the center of the light beam on the wall with tape. Use the adjustment screws, typically located on the headlight assembly, to raise or lower the beam until it aligns with the marked point. Be sure to check the owner’s manual for specific adjustment instructions, as they may vary by model year.
Low beam of lamp burnt out, poor ground connection, corroded headlight lamp contacts.