What does it mean when a tire pressure sensor is lost?
2 Answers
Tire pressure sensor loss is generally caused by damage to the sensor, and replacing the sensor will resolve the issue. Below is an introduction to tire pressure sensors: 1. Introduction: A sensor is a detection device that can sense the measured information and convert the sensed information into electrical signals or other required forms of information output according to certain rules, to meet the requirements of information transmission, processing, storage, display, recording, and control. 2. Principle: By installing a tire pressure monitoring sensor inside each wheel, the sensor wirelessly transmits the tire's pressure and temperature values to the body controller according to a certain pattern. The BCM then sends the information frame to the dashboard via the CAN bus, allowing the driver to obtain the pressure and temperature values of each tire through the dashboard display.
As someone who has been repairing cars for over a decade, I've encountered many owners complaining about lost tire pressure sensors. Essentially, it's when that little device inside the tire malfunctions or loses signal, causing the system to fail detecting pressure data. The most common causes are: sensor battery depletion (typically lasting 5-7 years), physical damage from external forces (e.g., being knocked during tire changes), or pairing errors where the vehicle fails to recognize the signal. This issue triggers a constant TPMS warning light on the dashboard, creating unnecessary stress since it means you can't monitor tire pressure in real-time – a genuine safety hazard. Low tire pressure increases risks of blowouts and fuel consumption. My advice: when the light appears, first manually check tire pressure. If normal, visit a professional shop to scan the sensors. If confirmed lost, simply replace it. During routine maintenance, always inquire about TPMS status and replace batteries proactively – it saves hassle and ensures safer driving.
