Why does Geely car display an airbag malfunction?
1 Answers
The reasons for the airbag warning light to illuminate include: foreign objects, especially metal shavings, around the airbag sensor wiring harness causing a short circuit and triggering a false alarm; errors in the car's ECU sensor data; prolonged parking of the vehicle in a humid environment or moisture in the wiring connectors due to car washing; or a malfunction in the airbag itself, though most cases are caused by loose connectors. Below is a detailed introduction about airbags: 1. Brief Meaning: The airbag system is a passive safety (see vehicle safety performance) protection system that, when used in conjunction with seat belts, provides effective collision protection for occupants. In a car collision, airbags can reduce head injuries by 25% and facial injuries by about 80%. 2. Main Components: Primarily consists of airbag sensors, collision airbags, and electronic control devices. 3. Working Principle: When a collision occurs during driving, the airbag sensor first receives the impact signal. If the impact reaches the specified intensity, the sensor activates and sends a signal to the electronic controller. Upon receiving the signal, the electronic controller compares it with its stored data. If the conditions for airbag deployment are met, the drive circuit sends an activation signal to the gas generator in the airbag module. The gas generator, upon receiving the signal, ignites the gas-producing agent, generating a large amount of gas. After filtration and cooling, the gas enters the airbag, causing it to rapidly inflate through the padding in a very short time, forming an elastic cushion in front of the driver or passenger. The airbag then promptly deflates and contracts, absorbing the impact energy, thereby effectively protecting the head and chest from injury or reducing the severity of injuries.
