1999 Chevy lumina hazard lights do not work

Question edited for a lot more clarity.
Question moved to model category.

It might be the flasher relay and it might be the horn relay although horns tend to seize up through lack of use. the flasher relay is is separate to the Hazards relay which is often part of the switch.

https://www.google.com/search?q=1997+chevy+lumina+flasher+relay+location

Chevrolet Lumina (1997) - fuse box diagram - Auto Genius

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Jan 1, 2018 - Fuse, Description. 1, CIGAR LIGHTER - Instrument Panel and Console Cigar Lighter. 4, WAC- WAC Control Assembly Solenoid Box, Mix Motor, ...

Chevrolet Lumina (1995-2001) fuses and relays

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Here you will find fuse box diagrams of Chevrolet Lumina 1995, 1996, 1997, 1998, 1999, 2000 and 2001, get information about the location of the fuse panels ...

Easiest way though https://www.google.com/search?q=auto+electrician+near+me

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Two possibilities:

1. Defective turn signal switch; or
2. Defective BRAKE LIGHT SWITCH (most likely).

I would go to Autozone and get a flasher relay,if it doesn't work,they will refund.

There should be a fuse for the dash lights and one for the tail lights.
A mechanic would check for voltage for each circuit at the headlight switch and go from there.

Could be a faulty hazard switch

Check the brake light switch on the top of brake pedal, it's most likely the cause.

you have to remove steering wheel then turnsignal switch to access retainer screw for lock cylinder. remove screw and cylinder will pull out.

first thing is replace both flashers one for signals and the other for hazards. if they still dont work then its your signal light switch, also check all fuses before you do anything.hope this helps.

for both issues, could possibly be the flasher unit for the blinkers.....which could be separate from the hazard flasher unit...(happened on my 92 chevy lumina) or the actual turn signal switch which is located in the steering column....not the stick you push, but the part inside that the lever controls (also happened on my lumina............3 times)

TIP:

start by checking the flasher....its cheap maybe 3-4$ for a new unit.....if thats not it and you figure out its the switch, go to a junkyard.....its wayyyy cheaper