What does a tire pressure monitoring system fault mean?

[DeSienna]

Tire pressure monitoring system fault refers to a problem with the initialization system of the tire pressure monitoring, which prevents it from performing its designated functions. In such cases, the vehicle must be returned to a repair shop for servicing. The tire pressure monitoring system automatically and continuously monitors the tire pressure while the car is in motion and alerts the driver in case of tire leaks or low pressure to ensure driving safety. The following explains the principles of tire pressure monitoring: 1. Indirect principle: When the pressure in a tire decreases, the rolling radius of that tire reduces. To maintain normal vehicle operation, the affected tire will rotate faster and complete more revolutions, triggering an alert. 2. Direct principle: This relies on pressure sensors inside the tires, which send tire information to a central module, thereby issuing an alert when the tire pressure is abnormal.