A multimeter is a good tool to check for a short in the brake light. Put one end of the meter on one side of the wire near the brake light. Put the other end on the metal that is around the bottom of the bulb. If the bulb does not light up, there is a short. If the bulb lights up, there is no short in the wire.
short in electrical circuit
Check for a short in the brake light circuit. A dead short will dim lights & blow fuses. Have you checked the charging system & battery? Pull the fuse for the brake lamp circuit & see if the same problem still exists.
It's because you have a short current somewhere. You need to check the brake light wiring.
check your brake fluid level under the hood. This may be true if the brake light is in the dash . If the light your talking about is the actual brake lights on the rear of the car you probablly have a short in the steering column
First check your turn signal switch
bad connection/short or burnt out brake bulb. Check the harness both under the steering wheel and at the lights.
Short in the wiring, brake light assembly, or possibly a defective brake light switch.
Check the light for condensation. There could be a short that has cause the light to malfunction. If so, the entire light unit will have to be replaced.
Warning light usually indicates low brake fluid or parking brake not fully released
Check to see if water is getting into the brake light sockets causing them to short to ground
brake lights dont work start here check break light fuse check bulbs in tail lights check stop light switch on brake pedal under dash if problem still exists there is a break or short somewhere in the wiring
A short in the Brake light circuit? Bad brake light switch?