It could be a few things. It could be a bad ground on the light bulb (the bulb could be working but be corroded at the ground), a bad flasher unit, a bad turn signal switch, or a bad bulb.
It sounds like the posative brake light wire is shorted out with the left turnsignal light wire. These are easily accesable in the trunk and also as a result eazily damaged. Locate the damaged wires and tape them up. Hope this helps.
Turn signal indicators are lights. The flash to tell you, or indicate, that a turn signal is on, and which way the lights are flashing.
If the turn signal relay & hazard (emergency) relay are side by side, turn on the emergency blinkers. You will hear & feel (if you touch the relay) the emergency relay clicking. Turn signal relay is the other one.
It is called sublimation when you turn a solid into a gas. When you turn a gas into a solid it is called deposition.
The 1995 Mercury Villager turn signal relay switch is located beneath the drivers side dashboard. The turn signal relay switch will be left of the brake pedal.
Usually the fuse is going bad.
1989 silverado left turn signal set applying brakes causes the left turn signal to dim and the two right rear tail light bulbs to alternate brightly? Further problem occurs to same truck - in Park and brakes not applied -- if head lights are on turn signal flash slows right down almost to a stop and becomes very dim
Your Pontiac has a problem in the electronic block, which is controlling the turn signals, the tail and brake lights and etc. It shouldn't be a big deal.
Check the fuses for your brakes.
It means that a light bulb is out on the side where the light solid (not blinking) it could be in the front or rear of the vehicle.
if your signal is faster than normal then you need a new bulb
It is your turn signal relay located behind the glove compartment. I have replaced mine and still had the same clicking/buzzing sound. It's most like your turn signal arm because it has a cluster of wires in there and they can't get loose.
i think your car is broken
A wire may be cut from the brakes. the turn signal wire is still connected
the turn signal switch sends current to the turn signal flasher. it then goes to the bulb. The turn signal switch will turn on the turn signal and when the brake is applied it cancels out the brake light as it is a duel element bulb. 1 element is for brake and turn and the other is for parking lights. you can not have a blinker and a constant feed to the same element of the bulb at the same time.
The turn signal was invented by Percy Douglas-Hamilton. In 1907, he applied for a patent, which was received in 1909.
In all probability you have a bad ground.