They are two stage bulbs two bulbs in one one of the filaments must be out being the one for your brake lights enjoy
If the bulbs check okay, check the brake light fuse, if the fuse checks okay, the brake light switch may be out of adjustment or faulty.
If the vehicle is equipped with a trailer light plug, the wires for the brake lights and the turn signals have been connected together, which is common, as many trailers do not have separate lights for brakes and turn signals.
we are having back brakes problems
No brake lights but turn signals work? Turn signal switch brakes route through it.
I found it easier to use the wires to the tail lights on the tractor.
A wire may be cut from the brakes. the turn signal wire is still connected
There probably is only one cause for your interior lights to go on when you apply the brakes. There probably are brake light wires and interior wires that have warned together.
How do you replace brake lights
There is essentially no restriction on using brake lights and turn signals at the same time, as they both signal actions/intentions that are often used in conjunction with one another. The brake light signals that you are using your brakes and slowing down, and the turn signal shows your intention to turn. As you will usually slow down as you come up to a turn, there will be many situations where both signals will be on at the same time.
APPLY BRAKES AND SEE IF BRAKE LIGHTS COME ON. IF NO BRAKE LIGHTS, REPLACE THE BRAKE LIGHT SWITCH LOCATED ON THE BRAKE PEDAL ARM AND THIS SHOULD ALLOW YOU TO SHIFT OUT OF PARK. IF THAT BRAKE LIGHT SWITCH IS BROKE, YOU WON'T BE ABLE TO GET IT OUT OF PARK
You have a short, you also may have to check your bulbs i found on one of my blinkers the bulb was faulty, i replaced it and everything was all fine again.
Check bulbs--they are dual filament smaller is for brake and turn signal --larger is for tail lights
It depends on the vehicle but in general you would have one fuse for the signals and one fuse for the brake lights.