What Does the Central Locking System in a Car Mean?

1 Answers
ReedAnn
07/30/25 6:00am
Central locking system in a car refers to a control device that can simultaneously control the closing and opening of all vehicle doors. The function of the central locking system is to allow remote opening and locking of doors without inserting the key into the keyhole. It consists of a door lock switch, an actuator, and a controller. The working principle of the central locking system is: the locking and unlocking process is completed through the positive and negative power conversion of the motor. The central locking system is composed of two double-contact relays and control circuits. When an unlock signal is received, the unlock relay engages, and current flows through the motor to form a circuit. The central locking system consists of two switches, a door lock relay, five bidirectional DC motors, and fuse components.
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