What to Do When the Car Key Fails to Work at a Slightly Longer Distance?

[SarahFitz]

Angle and environmental interference could be the reasons. Here is relevant information: 1. Working principle: Simply put, the key emits a weak radio wave, which is received by the car's antenna. The electronic control unit then identifies the signal code, and the system's actuator (motor or electromagnetic coil) performs the locking/unlocking action. 2. Coil induction working method: This mainly involves placing an encrypted chip inside the key. During the unlocking process, the car's radio frequency transceiver verifies whether the key matches to determine if the engine can be started. This method is primarily used in special situations where the key's battery is dead, allowing the car to start normally.