What is the rear door lock block
The rear door lock block is an important part of the car door lock system, its main function is to ensure that the driver controls the synchronous opening and locking of the whole car door through the driver's side door lock switch. It achieves this function by means of specific electronic circuits, relays and door lock actuators (such as solenoid or DC motor types) .
The working principle of the car rear door lock block
The rear door lock block completes the unlocking and unlocking action by changing the direction of the current in the actuator coil. The actuator can be electromagnetic coil type or DC motor type, they are controlled by electronic circuit to realize the door lock switch .
The structure of the car rear door lock block
The rear door lock block is usually composed of two parts: mechanical and electronic. The mechanical part locks and unlocks through the coordination of various components, while the electronic part plays the role of insurance and control .
Specifically, the rear door lock block may include a drive rod, spindle driver, motor and other components .
Automobile rear door lock block related problems and solutions
Insensitive door switch : The possible causes are dirty lock block, rusty door hinge or limiter, improper cable position, large friction between door handle and lock post, problem of fastener, loose or aging door rubber strip, etc. Solutions include cleaning the lock block, applying grease, adjusting the cable position, lubricating the door handle and lock post, adjusting or replacing the clasp, repairing or replacing the door rubber strip .
rear door lock failure : can be solved by changing the lock block. During the replacement process, you need to remove the fixing screws, remove the pull rod, unplug the tail door light, remove the plastic buckle from the old lock, install it on the new lock, and reinstall all components .
The main function of the rear door lock block is to ensure that when the driver controls the door lock switch on the driver's side, the doors of the whole car can be controlled by the central lock at the same time, and realize synchronous opening and locking .
The rear door lock block works through specific electronic circuits, relays and door lock actuators, which can be electromagnetic coil or DC motor, by changing the direction of the current in the actuator coil to complete the unlocking and unlocking action .
In addition, the rear door lock block also has the following specific functions:
synchronization control : The rear door lock block ensures that all doors open and close simultaneously, improving the convenience of use.
safety : Through the central control lock system, the door can be effectively prevented from being opened separately, which increases the safety of the vehicle.
anti-theft function : With the anti-theft system, the rear door lock block can enhance the anti-theft performance of the vehicle and prevent illegal intrusion.
In terms of maintenance and troubleshooting, if the rear door switch is not sensitive, it may be caused by dirty lock blocks, rusty door hinges or limiter, improper cable position, large friction between door handles and lock posts, snap problems, and loose or aging door rubber strips. Solutions include cleaning the lock block, applying grease, adjusting the position of the cable, using screw loosening agent to lubricate . If it cannot be resolved, it is recommended to go to a professional repair shop for inspection and repair .
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