Does your hazard lights only work when you turn the flashers on and the turn signal on at the same time? GM is known for having a multi-purpose switch... this switch controls your lights, turn signals, hazard lights and high beams... sometimes cruise control too... well anywho, sometimes that switch is partially broken... I recommend hooking a multi-meter to the wires that hook the multi-switch up and test all the functions of the switch... but I guarantee if you put a new multi-switch on the car that your hazards lights will function properly... I also recommend buying the part through an after-market company because it is cheaper...
If neither signal light works, the flasher may very likely be the problem. The hazard lights and the signal lights work off different flashers.
There is a short in the wires in the turn signal circuit. The combination switch in the steering column is a good place to check. Do the hazard lights still flash?
You have a bad relay. Your blinkers run on a different relay than you hazards do.
Try replacing the turn signal flasher
either a bulb or the signal flasher relay located on the fuse panel usually opposite the hazard flasher relay
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 you mean: "why do hazard lights flash when brakes are on", then the answer is because vehicles are equipped with a hazard light relay that supercedes the brake lights. This way, slow moving vehicles can operate under hazard lighting.
To make the hazard lights alternating flash, a kit called a wig wag is added to the flasher system. To have actual strobe lights, then a strobe kit with its own light has to be installed.
How do I replace turn signal on a 1992 Chevrolet caprice classic I want to learn how to do it myself
The hazard and turn signals each have their own flasher relay. They should be fairly close to each other under the dash. They are the same flasher part.
The front or rear turn signal flasher bulb may be burned out and needs to be replaced. The turn signal flasher my be defective and should be replaced. The hazzard lights have a flasher unit of their own. These are found up in under the dash in the steering column area.
replace turn signal flasher, hazard flasher is separate