How many days can a car key be used after getting wet?
1 Answers
It is uncertain how long it takes for a car key to dry naturally after getting wet, as it depends on factors such as air temperature and humidity. Based on their working methods, car keys can be divided into three categories: active working mode, passive working mode, and coil induction mode. The specific working methods of car keys are introduced as follows: 1. Active working mode: The principle is to control the car door through the vehicle's electronic module and body control module. Simply press the key button to send an unlock/lock command, and after verification by the vehicle's electronic module, the door can be opened/closed. 2. Coil induction working mode: Mainly involves placing an encrypted chip inside the key. During the unlocking process, the vehicle's RF transceiver verifies whether the key matches to determine if the engine can be started. This is mainly used in special cases where the key has no power, allowing the car to still start normally. 3. Passive working mode: When the owner enters the sensing area of the key system, as long as they touch the door handle, the identity-recognition "key" they carry will receive a low-frequency signal sent by the car. If this signal matches the identity-recognition information stored in the "key," the "key" will be awakened.
