Top Brake Light Stuck On? Uncover the Causes and Fixes

... you buy a aftermarket 3rd brake light and when you plug it in it stays lite up ... My Content and want to be a Patreon here is the link http://www ... A faulty brake light switch can cause brake lights to stay on constantly, flicker, or not come on at all. It's easy to replace the brake light switch yourself. The third brake light is LED-based and is fed by a separate wire. The problem that you're having is most probably faulty light switch (A3a on ... The Center High Mounted Stop Light has its own power relay that is triggered from the signal in the brake light switch. The brake peddle is differant, I would need to disconnect a wire and check it with an Ohm meter. Since you just worked on the lights that makes ... It seems to me that you may have an issue with the brake light switch. I have seen it before where the switch fails internally and provides ... fed from the right (RH) rear stop light. If the center brake light is lit, so would the right (RH) rear stop light. There's no connection to the ... Possible the switch at the brake is bad. Have you unplugged the connection to it to see if it turn off. It may go out but but still may not be ... It is very dim but it does get brighter when the brake pedal is pressed(other brake lights work normal). Also my brake lights do not work unless ... Make sure your parking light is no turned on and there's another problem with the brake bulb or wire.