Automatic Door Lock Not Working

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.

Automatic door lock not working.

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. If it works sometimes you probably have a broken wire. Again if one door doesn t work but others do the problem could be with the door lock solenoid. Power door locks do not function.

Solenoid and dc motor. An inoperative power door lock can be caused by the switch solenoid wiring problem or mechanical problem within the linkage of the affected door. Quite often you will notice a buzzing sound from the door when you the locks are engaged. 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.

To lock the doors the switch provides voltage to the two terminals of the solenoid. Like the power door lock switch the power door lock actuator can malfunction due to the large amount of use that it gets. If the door lock actuators fail they will disable the power door lock feature from working. Power door locks can break down over time because of a worn out actuator.

Symptoms of a failing door lock actuator door lock actuators are made in two styles. Each door has its own actuator. For vehicles equipped with door lock cylinders the door can still be opened using the key. Actuator usually to blame for broken power locks.

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. Inside each of your car s doors is a hard working motor that locks and unlocks them with each push of a button. Replacing it may require removing the car door panel. Just make sure the key is on.

If the lock tries to move then the problem could be a frozen lock mechanism or a faulty solenoid. This is the motor that controls the locking rod. Power door locks that do not function are another common symptom for a problem with the door lock relay. 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.

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. To unlock the doors the switch reverses the polarity of the voltage applied to the solenoid. And although you expect things like your power door locks to work without fail that isn t always the case.