How to Confirm Car Locking Without a Key?

1 Answers
EllieFitz
07/29/25 10:47pm
When the locking sound is heard, the turn signal will flash once. For models equipped with automatic mirror folding, the rearview mirrors will automatically fold, and the lock warning light on the door will flash. The remote key consists of the following two components: 1. Transmitter: Composed of a transmission switch, transmission antenna, integrated circuit, etc., it includes an identification code storage circuit and an amplitude modulation circuit. A button-type lithium battery is installed on the opposite side of the circuit, and the transmission frequency is selected according to radio standards. 2. Receiver: After the transmitter sends the identification code using shortwave modulation, it is received by the car's shortwave antenna and processed by the distributor into the shortwave high-frequency amplification processor of the receiver's electronic control unit for demodulation.
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