check the break lignt senser located next to your break pedal
On my 97 Chevy Blazer, the taillights work, hazards work, turn signals worked, but my two main brake lights didn't, the high mounted center l.e.d. brake light up top worked and my trailer hitch brake light worked but the other 2 didn't. My emergency hazard switch broke off, in it, Chevy has that multifunction switch that controls the brake lights, wipers, turn signals, all of that... there is a connector on that hazard light switch that when pushed or put in it's original place, makes contact on 2 of the lines inside it, i jimmy rigged mine with a screw to hold it in the place it was suppose to be at.... I need to replace that whole switch, it's called the cruise control assembly at autozone, but two hundred dollars is the price and I'm not paying it...
Try the "WD40" trick on the Hazard Switch. Use a can with the red straw nozzle and just shoot a little into the area around your hazard switch, then move it up and down, on/off--just generally wiggle it a little bit. On many vehicles (especially FORDS, but others as well) this will allow the switch to fully disengage and return brake lights and turn signals to functionality.
Check the fuses first then check the bulbs.
It could be the brake light switch (the switch that activates the brake lights when you step on the brake pedal) has gone bad
A defective brake light switch could cause the problem. Also a defective turn signal switch could also. The brake lights work through the turn signals. It cancels the brake light so that the turn signal can work.
it maybe the brake switch
Could be the brake light switch or fuse.
Your problem may be with any or all of these three items: The fuse, brake switch or bulbs in the brake lights.
To be more specific, the ground wire must work and the bulbs, fuses, etc.. Or the back up lights and turn signals and brake lights wouldn't work? Right? Could it be the back panel...and still let the brake/turn/backup lights work? I need help fast. Thanks!
It is not necessarily the fuse. It could be the switch on the brake that is not closing the circuit.
Check bulbs they are double filamented with smaller for brake lights Could be a problem in steering column
Probably the wrong bulbs or the brake lights are getting stuck "on". Or maybe a combination of the two. Check that you have the right bulbs and check to make sure something isn't keeping the brake lights on. FriPilot
Check all the fuses. If not bulbs or switch that's all that it can be,
Check turn signal switch. Pull back lighty on turn signal lever and brake lights will come on. Replace switch inside steering column. The green and yellow wires you see at the bulbs are the ones that control the brake lights and turn signals.