Check the bulbs - they are double filamented smaller for stop lights larger for tailights Check the fuse
Check the operation and adjustment of the stoplight switch
Check the fuses
Check the sockets for power and ground
Brake light switch ?
Check the tail light bulbs. These bulbs do double duty. Thet are both the tail light & the brake light. Tail light part might be burnt out.
On a toyota tacoma 2003 SR5 when the tail lights are turned on the brake lights come on and when the tail lights are of the brake lights work just fine what could be the problem. If the truck has a trailer plug, inspect the plug and plug wiring for damage and corrosion.
every vehicle must have brake lights to indicate that the vehicle is stopping. with no brake lights the vehicle can cause a rear end collision.
Check the wire which is going inside of the trunk hood to the brake lights.
A brake light switch may be bad if a 1996 Toyota Corolla will not go into gear and the brake lights don't work. Another issue could be in the shift lock solenoid.
May be stop light switch--usually located at the upper end of the brake pedal under dash
Start with the light sensor on the brake pedal arm.
replace the break light bulbs?
Yes. I switched the lamps and they work OK. There is only one fuse marked for the stiop lights and it's ok also.
my back brake lights don't work, but the brake light on the back door does what could be wrong
replace brake light switch on brake pedal if it hasn't been done try that