What is the reason for the continuous flashing of the P gear and inability to start?

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Automatic transmission cars with the P gear continuously flashing indicate a transmission failure, and it is necessary to go to a repair station for fault detection and subsequent handling. Below is relevant information: Appropriate gear selection: The vehicle will automatically select the appropriate gear for driving based on the speed and traffic conditions. Generally, automatic transmission cars have six gear positions, from top to bottom: P, R, N, D, S, L. Driving an automatic transmission car only requires the use of the parking gear P, reverse gear R, neutral gear N, and drive gear D to fully meet the needs of general driving. However, in some special driving environments, other functional gears may be needed. Principle of automatic transmission: The engine's power is transmitted through the gearbox, which is also a key factor affecting fuel consumption. Generally, automatic transmissions consume 10% more fuel than manual transmissions. Whether manual or automatic, the more gears there are, the more fuel-efficient the transmission is.