What is the reason for the car's turn signal flashing very fast?

[DelMarley]

Car turn signal flashing very fast reasons are: 1. Loose bulb or poor plug connection; 2. Inconsistent turn signal bulb power or model; 3. Combination switch or instrument failure. Car turn signals are lamps on the vehicle, serving as warning tools to emit various driving signals. They are categorized by function into: low beam, high beam, front position light, front fog light, rear position light, reverse light, brake light, rear fog light, and license plate light. The functions of car turn signals are: 1. To alert pedestrians or other vehicles of an upcoming turn; 2. On highways, to indicate overtaking and lane change directions; 3. When flashing simultaneously, to indicate that the vehicle has an emergency situation, alerting other vehicles to pay attention.