Blown fuse or wiring defect for the bulb you have already replaced.
You have replaced the wrong bulb.
The new bulb was defective.
If the bulb is in fact a working bulb, and the passenger side works, then I would assume the problem lies within the driver side socket. This is possibly due to corrosion or something similar restricting the contact between bulb and socket.
check the ground wire to that headlight .
You change the bulb for the right headlight the exactly same way as you changed the left only opposite. If you are replacing one headlight, even if the other still works it is best to replace them in pairs, for lights can dim and if you have a bright bulb and a dim bulb you could be in danger of distracting other drivers and causing an accident.
Headlight wash wipe normally works when the headlights are on and you press the screenwash button
flush out heater hoses
#9006.
Some motorcycles have a separate switch for the headlight that works independently of the ignition. If this is not the case, then there might be a short in the wiring for the headlight.
i found out for myself that if you jump terminal a&b at the compressor relay the compressor will kick on so i replaced the relay and it works.
and it is not burned out
I have personally used 3M headlight restoration. You will have to apply it a few times, but it works and the price is good and you can get this stuff at Walmart.
Check the driver's side headlight relay, it's in the fuse panel under the hood. If that is ok then you most likely have a wiring problem.
Defective blower motor resistor pack.