Faulty Brake Light Switch: Inspect the brake light switch. If it is damaged or defective, replace it.
Blown Fuse: Check the fuse associated with the brake light circuits and replace if fuse if it is blown.
Wiring Damage: Inspect the wiring for any cuts, exposed wires, or poor connections. Repair or replace them.
Turn Signal Switch: Test the turn signal switch and replace it if found malfunctioning.