1. Faulty brake light switch: The brake light switch is responsible for sending a signal to the brake lights to turn on when the brake pedal is pressed. If the switch is faulty, it may be sending a signal to the brake lights even when the brake pedal is not pressed, causing them to flash.
2. Faulty turn signal switch: The turn signal switch is responsible for sending a signal to the indicator lights to turn on when the turn signal lever is activated. If the switch is faulty, it may be sending a signal to the brake lights instead of the indicator lights.
3. Faulty wiring: There may be a problem with the wiring between the brake light switch and the brake lights, or between the turn signal switch and the indicator lights. This could cause the brake lights to flash instead of the indicators.
It's important to have the problem diagnosed by a qualified mechanic to determine the exact cause and have it repaired to ensure that your vehicle is safe to operate.
