Automatic Door Lock Not Working

Inside each of your car s doors is a hard working motor that locks and unlocks them with each push of a button.

Automatic door lock not working.

To unlock the doors the switch reverses the polarity of the voltage applied to the solenoid. Single door doesn t work when a single door won t work any longer it is most likely a bad actuator motor inside the door. Power door locks do not function. Replacing it may require removing the car door panel.

Solenoid and dc motor. Actuator usually to blame for broken power locks. Power door locks can break down over time because of a worn out actuator. You have a broken wire.

If the door lock actuator doesn t work with any method then the problem can be the door lock actuator itself the wiring or the control module. If the power door lock relay fails it will cut off power to the entire power door lock system and may cause them to not function correctly. The solenoid is bad. Like the power door lock switch the power door lock actuator can malfunction due to the large amount of use that it gets.

This is the motor that controls the locking rod. Again if one door doesn t work but others do the problem could be with the door lock solenoid. Power door locks that do not function are another common symptom for a problem with the door lock relay. Quite often you will notice a buzzing sound from the door when you the locks are engaged.

If the lock isn t getting power hold the lock switch either up or down and then open and close the door repeatedly to see if the lock will work. Defrost the lock to check an individual lock mechanism work the door lock manually up and down or backwards and forwards in newer vehicles while using the auto lock button at the same time. Just make sure the key is on. If the door lock actuators fail they will disable the power door lock feature from working.

Symptoms of a failing door lock actuator door lock actuators are made in two styles. This will require the driver to use the key to lock or unlock the doors and can disable the power door locks completely for vehicles that do not use a traditional key such as newer luxury vehicles. To lock the doors the switch provides voltage to the two terminals of the solenoid. If the lock tries to move then the problem could be a frozen lock mechanism or a faulty solenoid.

An inoperative power door lock can be caused by the switch solenoid wiring problem or mechanical problem within the linkage of the affected door. A top rated mobile mechanic will come to your home or office to determine the cause of the power door lock that isn t working and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs. For vehicles equipped with door lock cylinders the door can still be opened using the key.