What Causes Abnormal Tire Pressure Signal in BYD Song?
1 Answers
BYD Song tire pressure abnormalities generally have the following 3 causes: Tire pressure abnormality: The system typically alerts when pressure falls below 1.8bar or exceeds 3.0bar. In this case, tire inspection and pressure adjustment are required. Tire pressure monitoring system not reset: After tire inflation, if the system isn't promptly reset, it continues using previously recorded data, causing the tire pressure warning light to illuminate. Simply performing a system reset will resolve this. Damaged tire pressure sensor: These sensors, installed inside tires and connected to inflation valves, monitor tire pressure. If damaged during driving (e.g., by impact), they trigger the warning light. Damaged sensors require complete replacement. There are 3 common tire pressure monitoring methods: Direct TPMS: Uses pressure sensors in each tire to directly measure pressure, transmitting data wirelessly to a central receiver that displays individual tire pressures. Indirect TPMS: Detects pressure loss by comparing wheel speeds - underinflated tires have smaller rolling radii and rotate faster. Tire Pressure Monitoring System (TPMS) overview: This hybrid system combines advantages of both methods, installing direct sensors on two diagonal tires while using 4-wheel indirect monitoring. More cost-effective than full direct systems, it overcomes indirect systems' inability to detect simultaneous underinflation in multiple tires.
