What does a half circle with an exclamation mark indicate as a fault?
1 Answers
When there is an icon of a half circle with an exclamation mark in the middle on your vehicle, this symbol is the tire pressure warning light. The appearance of this symbol indicates that the tire pressure of the vehicle is too low and needs to be replenished. The methods of tire pressure monitoring are as follows: 1. Direct tire pressure monitoring: Direct tire pressure monitoring devices use pressure sensors installed in each tire to directly measure the tire pressure, and use wireless transmitters to send the pressure information from inside the tire to a central receiver module. Then, the tire pressure data for each tire is displayed. When the tire pressure is too low or there is a leak, the system will automatically alert. 2. Indirect tire pressure monitoring: The working principle of indirect tire pressure monitoring is: when the pressure of a tire decreases, the weight of the vehicle will cause the rolling radius of that wheel to become smaller, resulting in its rotation speed being faster than the other wheels. By comparing the differences in rotation speeds between the tires, the purpose of monitoring tire pressure is achieved. Indirect tire alarm systems actually rely on calculating the rolling radius of the tires to monitor pressure. 3. Introduction to the Tire Pressure Monitoring System (TPMS): It combines the advantages of the two systems mentioned above. It is equipped with direct sensors in two diagonally opposite tires and a 4-wheel indirect system.
