Use a flat screwdriver or similar to pry open the remote control housing. 2. Remove the remote control transmitter battery. 3. Place the positive () side of the new battery into the box. 4. After installing the battery, close the remote transmitter cover tightly. 5. After replacing the battery, check whether the remote transmitter can operate normally. Note:
1. Confirm that the positive and negative electrodes of the remote control transmitter battery are installed correctly.
2, do not move or touch any parts in the remote transmitter, otherwise it will hinder normal operation.
3, do not replace the battery with wet hands, water will cause accidental rust of the battery.
4, when the battery is loaded, do not bend the insertion electrode of the remote control transmitter, and avoid adhering to dust and oil in the box. The wireless remote control function of the central lock means that you can open and lock the door remotely without inserting the key into the keyhole, and its biggest advantage is that no matter day or night, there is no need to find the keyhole, and it can be unlocked (open the door) and locked (lock the door) remotely and conveniently. The basic principle of remote control is: a weak radio wave is sent from the owner's side, the radio wave signal is received by the car antenna, the signal code is identified by the electronic controller ECU, and then the actuator of the system (motor or electromagnetic manager circle) performs the action of opening\/closing. The system is mainly composed of two parts: transmitter and receiver. 1. Transmitter The transmitter is composed of a transmitting switch, a transmitting antenna (key plate), an integrated circuit, etc. It is integrated with the signal sending circuit on the key plate. From the identification code storage loop to the FSK modulation loop, which is miniaturized by the use of a single-chip integrated circuit, a lithium battery with a snap button type is installed on the opposite side of the circuit. 2. The receiver transmitter sends out the identification code using FM modulation, receives it through the FM antenna of the car, and demodulates it using the FM high-frequency increase processor entering the receiver ECU to compare with the identification code of the decoded regulator; If the code is correct, input the control circuit and make the actuator work. The door lock remote control system is usually composed of a portable transmitter and a receiver in the car, and the identifiable signal sent from the transmitter is received and decoded by the receiver, driving the door lock to open or lock, and its main role is to facilitate the driver to lock the door or open the door.