Symptoms of a Bad or Faulty Door Lock Switch
Auto repair

Symptoms of a Bad or Faulty Door Lock Switch

If the door locks are not working properly or the door lock button is broken, you may need to replace the door lock switch.

The power door lock switch is an electrical rocker switch that is used to lock and unlock the vehicle's power door locks. It's a one-touch switch that swings back and forth. They will switch one way to unlock the doors and the opposite way to lock them. When the button is pressed, power is supplied to the door lock actuators so that the doors can be locked or unlocked. Usually they are installed in the car interior on the inside of the door, easily accessible to every driver and passenger. Power door lock switches are simple in design and operation, however, due to the high frequency of use, they often fail and in some cases require replacement. When the door lock switches fail, it can cause problems locking and unlocking the doors. Usually, a bad or faulty door lock switch causes several symptoms that can alert the driver to a potential problem.

1. Door lock works intermittently

One of the first signs of a potential problem with power door locks is door locks that work intermittently. If the electrical contacts inside the switch wear out, they may not provide adequate power to the door lock actuators and may cause intermittent operation. Worn electrical contacts can also cause the switch to quickly lock and unlock, which can be annoying for the driver.

2. Broken door lock button or rocker

Another sign of a power door lock switch problem is a broken button or rocker. Most door lock switch buttons are made of plastic, which can break and crack with frequent use. Usually a broken button or rocker will require the entire switch assembly to be replaced to restore functionality.

3. Door locks don't work

Another direct sign of a problem with power door lock switches is door locks that do not work when the switch is pressed. If the switch fails completely, it will not be able to supply power to the door lock actuators, and as a result, the door locks will not work.

Although most power door lock switches are designed to last for a long time, they are still prone to failure and can be an inconvenience to the driver when they do so. If your power door locks exhibit any of the above symptoms, or you suspect this may be the problem, have a professional technician like AvtoTachki inspect your vehicle to determine if your vehicle needs a door lock switch replacement.

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