One Eye Willy with a twitch!
I have a 95 Civic DX hatchback. When my left signal started blinking very
fast, I found out that it was because the rear left turn signal bulb had
burned out. I believe that if your left front or rear front bult burns out,
your blinker will flash more rapidly on the side in which the bulb is burned
out.
If your headlight is dim and the brights cause the lights to go out totally on
just one side, then it's probably not caused by your alternator. It's likely
either: bad headlight or bad contact.
Check the driver side bulb. Also, make sure that the ground to the bulb is
good.
It sounds to me like the ground to the headlight and the turn signal bulb on
the driver's side is not making good electrical contact with the rest of the
car.
Sounds like you have a bad ground that is shared by the left headlight and
turn signal. Follow the wires coming off the headlight, look for where one
of them is bolted to the car, inspect and clean this connection.
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Jordan Blessing L1 Master Tech