Can a Spare Key Start the Car?
1 Answers
Spare keys can start the car. Keys are categorized into: mechanical keys, remote control keys, touchscreen LCD keys, smart wristband keys, Bluetooth keys, etc. The methods for using the keys are: 1. After turning off the vehicle, press and hold the lock button on the remote key to close the windows; 2. Press the red horn-shaped button on the key to locate the vehicle by the sound of the horn; 3. Press the trunk button to automatically open the trunk. The principle of the key: The car owner emits a weak radio wave, which is received by the car antenna. The electronic control unit (ECU) identifies the signal code, and the system's actuator performs the action of unlocking or locking.