It is a 1989 Chevrolet Camaro RS. The passenger low beam of the headlight assembly doesn't work but the high beam does. Is it the bulb that is burnt or could it be something else?
Burnt out bulb.
I'm not so sure though. The same bulb works on high beam but not on low beam.
You have 4 lamps; 2 high beam, 2 low beam.
The low beam on the right side (passenger) only works when the high beams are engaged...
That's because there are two filaments in the bulb. The low beam filament is burnt out.
https://www.autozone.com/collision-body-parts-and-hardware/headlight
I was wrong about the dual filament. According to everybody, you have a low beam lamp and a high beam lamp. The low beam lamp always goes out first because it's used 99% of the time while the high beam lamp is only used about 1% of the time`.
When I turn the high beams on, the low beam light also turns on.
Good, it's supposed to. You probably want to read your owner's manual on how this works. They're available free online in a pdf if you don't have one.
But when I turn the high beams off, the lamp turns off completely again. OK, it's the filament that is burnt out as you said. Thanks
If you can't get it with the lamps, check your fuses and relays, plug in connectors and ground connections. If all that fails, your headlight switch is toast.
Whew! You worked hard for that one, Doc. I think that you should be promoted to "Illuminator" status for your perseverance. 💡
Thanks for that @avalon04. My fuse had just about burnt out. This car has this weird sliding high/low beam part. Live and learn. Best part of doing a job is finishing it.