Brake lights - inop

You have no clue, guessing won't fix it , having wiring diagrams an using a DVOM - digital volt ohmmeter will. Testing an reading how they are suppose to work will. factory service info.

Turn Lamps
Battery positive voltage (B+) is supplied at all times to the turn signal/hazard flasher module in the hazard switch assembly from the rear fuse block T/SIG HAZ Fuse. The turn signal/hazard flasher module is permanently grounded. Battery positive voltage (B+) is supplied with the ignition switch in the ON or START position to the turn signal switch in the instrument panel from the rear fuse block IGN 1 Fuse.
When the turn signal switch is placed in the position to indicate a LH turn battery positive voltage (B+) is input to the turn signal/hazard flasher module Left Turn Input. In response to this input the turn signal/hazard flasher module supplies battery positive voltage (B+) in an on and off flashing pattern to the LH turn lamps and the instrument panel cluster (IPC) LH Turn Input. The LH turn lamps are permanently grounded so the LH turn lamps light when they have power, ground and turn off while power is removed. The IPC will also light the LH turn indicator.
When the turn signal switch is placed in the position to indicate a RH turn battery positive voltage (B+) is input to the turn signal/hazard flasher module Right Turn Input. In response to this input the turn signal/hazard flasher module supplies battery positive voltage (B+) in an on and off flashing pattern to the RH turn lamps and the IPC RH Turn Input. The RH turn lamps are permanently grounded so the RH turn lamps light when they have power and ground and turn off while power is removed. The IPC will also light the RH turn indicator.

Did the turn lamps operate properly?
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Go to Step 3
Go to Turn Signal Lamps and Indicators Inoperative - One Side
3
Disconnect the instrument panel cluster (IPC) connector.
Connect a test lamp between the inoperative turn signal input circuit at the IPC connector and a good ground.
Turn ON the ignition, with the engine OFF.
Move the turn signal switch to the inoperative turn position.
Does the test lamp turn ON and OFF with the turn signal lamps?


You people need to quit trying to play auto mechanic , you have no clue about automotive electrical circuits .

test brake light switch --underdash on bracket attached to brake pedal

Have you checked the bulbs already?
Don't know what kind of car you are dealing with here.
Most vehicles - the brake lights and rear turn signals share the same electrical circuit to the rear tailights. Usually the turn signal switch will separate which signal goes to the back.
Do your brake lights work? Is there a High mounted stop lamp and does it work?
I have seen a Hazard Switch be ON and fuse blown causing the Hazard Flasher to be inop - which prevented the turn signals from working. Turning OFF the hazard flasher brought back the T/S.
Check the rest of the lights - see what does and doesn't work - and do the front turn signals flash? Stay On? Or flash really slow?
Let me know what you find out and if this helps you at all.

Sounds like your multifunction control switch needs replaced. Its location is on your steering colum.

you have a short in the wire somewhere. you can trace the wires and look for any exposed or burnt looking wires to start out with.

There is a good possibility that the hazard warning and directional signal lights have nothing to do with the starting or operation of the engine. There are many things that might cause the car to fail to start. The battery must be fully charged, and in good working condition. No corrosion on the terminals. good solid connections. When you turn the key the starter motor should turn the engine over. If that works the carburetor will need gas. If you have gas and spark, the engine should run. Hope that helps.
Turn signals work with the tail lights and parking lights on the front. You should turn on the Head lights and check to see if the tail lights and parking lights come on. You will also want to check to see if the flasher is plugged in. All the light bulbs must be plugged in and working to operate the flasher for the turn signals. good luck

brake pedal arm

The hazard flasher is a separate flasher by itself for the directional has its own. The brake lights work off the brake light switch mounted by the brake pedal

yes they are. if your hazard flasher is bad and you happen to have the hazard switch turned on your brake lights wont work
put hazard switch in one position and check brake lights
then put in other position and check them
if they work with the hazard switch in one position leave switch olone and check fuses and put a new flasher for hazard in