How Auto Door Locks Work

But in more complicated systems that have several ways to lock and unlock the doors the body controller decides when to do the unlocking.

How auto door locks work. 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. The door latch on a car door is responsible for keeping the door shut against the body of the ca. 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.

Here s how the power door locks and latch works on your car. Electric car door locks operate by receiving a radio signal transmitted by the car key fob signaling the actuator to activate which then routes the command through the correct path lock unlock and performs the desired action. 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. The body controller is a computer in your car.

See more pictures of car gadgets. If you move the door latch yourself all of the gears will turn except for the plastic gear with the clutch on it. This method should work on most pin and tumbler locks that people normally use. A car door in this car the power door lock actuator is positioned below the latch.

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. When the actuator moves the latch up it connects the outside door handle to the opening mechanism. Between the keypads keyless entry systems and conventional locks some cars today have four or five different ways to unlock the doors. How the actuator works.

This will allow the door to be opened and closed as necessary. On activation the actuator unit moves a rod attached to the rear of the latch door lock mechanism.