How a Power Door Lock Works

Here's how to replace the power door locks on a Toyota. This is also a teardown video of what's inside a power door lock actuator and latch and how it works. Power door locks (or central locking systems) use an electric motor to cycle the lock into the unlock or locked state when you press the remote on your key fob or turn the key in the door. After many years the motors wear out and they slow in operation or quit working altogether. The actuator assembly, which contains the motors and gear mec

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