How Auto Door Locks Work

When the actuator moves the latch up it connects the outside door handle to the opening mechanism.

How auto door locks work.

Centrifugal clutch on the drive gear when the motor spins the gear the clutch swings out and locks the small metal gear to the larger plastic gear allowing the motor to drive the door latch. When locked the latch will be depressed and the mechanism will be connected to prevent the door from being opened. How the actuator works. Between the keypads keyless entry systems and conventional locks some cars today have four or five different ways to unlock the doors.

In some cars that have power door locks the lock unlock switch actually sends power to the actuators that unlock the door. On activation the actuator unit moves a rod attached to the rear of the latch door lock mechanism. Here s how the power door locks and latch works on your car. The door latch on a car door is responsible for keeping the door shut against the body of the ca.

See more pictures of car gadgets. You will require one wrench to apply tension to the lock cylinder and one long pick to actually get the pins of the lock to move. A rod con nects the actuator to the latch and another rod connects the latch to the knob that sticks up out of the top of the door. Key fobs such as this one activate the power door lock mechanism.

This method should work on most pin and tumbler locks that people normally use. But in more complicated systems that have several ways to lock and unlock the doors the body controller decides when to do the unlocking. If you move the door latch yourself all of the gears will turn except for the plastic gear with the clutch on it. By unlocking the car door using the internal latch or a key the visible latch will be in the up position and the car door locks release the door opening mechanism.

To start with you need the right tools for the job. This will allow the door to be opened and closed as necessary.