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Auto Door Locks Repair – Fixing a Power Door Lock Actuator A door lock actuator that is powered will wear out over time and age. It may also be affected by electrical problems such as a blown fuse or damaged wiring. Often worn bushings cause the door to move slowly or erratically. Watch the movement of the parts as you push and pull the handle of the door. Unlocking While door locks may be an expected feature of vehicles of the present, they're also one of the many things that can go wrong. It doesn't matter if the issue is caused by a dead remote battery, an electric motor or actuator that is wearing out wires corroding, or the simple fact that a door was left open, the result can be frustrating and even dangerous if the car cannot be locked or unlocked. Depending on the model of car there are various ways for doors to be controlled to lock or unlock. Some cars have keys that are connected to doors that have handles, which requires the use of a physical lock. Others utilize a button within the door, an entry system that is keyless or a remote or some combination of these. If the door lock won't respond, it's likely the door lock actuator that is powered by electricity. After a decade or so of use, it's not uncommon for them to cease working. You can usually find out the issue quickly using a digital multimeter. You'll hear a whirring sound as the gears rotate and a quiet clunk when the latch bolt completes the process. If the power locks don't work, you will need to take the panel off and test the solenoid with an alligator clip or other method. In certain models the door lock switch controls the lock actuator inside each of the doors to turn off and on. In other more complex vehicles, a body control unit controls the functionality of the door locks through a connection with other systems inside the vehicle. When the actuator for a door lock is damaged the door will no longer unlock or lock and the handle of the door won't move. The door might be difficult to close and the hook latch or striker could jam. A gentle hammering or WD40 can sometimes fix these problems. However, you might have to replace the parts. Unjamming Modern car doors are operated by a combination of mechanical as well as electrical components. They are also powered by electric motors that are controlled using the key or remote control system. It can be a challenge to get where you'd like to go if one or more of these components fail. A faulty actuator can cause, for instance, to stop a door from locking and unlocking after the key is turned inside the vehicle. Fortunately, it's quite simple to fix the issue at home with a few simple tools. The actuator is the most frequent cause of power door locks not working. This can happen due to a variety of reasons, including exposure to moisture over time, which causes corrosion that causes damage to electrical connections. Dust, dirt and oil can be a problem for the actuator, which puts additional strain on the mechanical portion. The actuator may also be damaged physically, for example, by someone trying to jimmy the device. If you think that the door lock actuator is failing The first step is to check if the power is reaching the component. If it is, then the problem is likely elsewhere, such as a damaged relay or fuse, or a bad control module. It's time to act after you've determined the actuator is not working properly. You'll need a few items like a wrench and screwdrivers. You may also need to remove the door panel to access it. You'll have to remove the wires and cables attached to the actuator. After the old actuator has been removed, you'll need to replace it with a new component. Before installing the new part you should reconnect all the cables and wiring and perform an examination of the performance to make sure that the door lock actuator operates correctly. Ensure that the new part has been securely attached to the panel's inner surface and that all clamps, clips and other parts are securely fastened. If door lock troubleshooting , they could be rattled or fall off during operation. Keyless Entry Keyless entry is a convenient way to unlock your car without having to place your keys into a lock cylinder. It operates by allowing the vehicle to know when your keys are within reach and then transmitting an audio signal to the key fob that matches the code. The key fob relays the code to the door locks that then open or close in accordance with the code. Keyless entry points are easier to use in colder conditions, when wearing gloves or when your hands are full. They are also more secure than traditional locks, since they do not require the key to be placed into the cylinder. However the technology that makes keyless entry systems work is a bit more complex. This increases the risk of malfunctions if they occur. Check the owner's manual for instructions on how to reset your power door locks. In the majority of cases it will require disconnecting and reconnecting the battery or pressing a button near the door lock actuator. If the power locks are still not locking or unlocking, it's a good idea to check whether all doors are affected by the problem. A damaged lock actuator can affect other systems within the car, including security and convenience features. A malfunctioning door lock actuator may not only make it difficult to open the doors of your vehicle however, it can also make the vehicle open to theft. You can help to prevent this by regularly using a lock de-icer or WD-40 on the door locks and door handle and cleaning any dirt or debris that might be blocking the mechanism of the lock. You've probably seen police and AAA helping people get out of locked vehicles, and they're usually equipped with a tool that appears like a thin metal strip with a hook-like piece on one end. These tools allow them to fish around in the door lock, usually between the knob on the door and the power lock actuator. Once they find it they can pull on the strip to break the lock and pull the door open. Rekeying Rekeying is the process of changing a lock's pin combination to ensure that only new keys can unlock it. It is much less expensive and easier than replacing the lock. It also offers an increased level of security. It's also among the most simple locksmith jobs for home use to do. Most door locks require keys to operate. The key can be removed, and the key is moved to a new position within the lock, and the pins are changed to ensure that only the new key functions. This method is not a solution for a jammed or broken lock. This method can be used to rekey the locks on cars after a successful or unsuccessful break-in. It also provides security to homeowners who have recently moved into a home. Electric power locks rely on motors or magnetic fields that are activated by currents of electricity to move the handle. There are a number of reasons that the electric system could fail: the battery of the remote may be dead, the wires could have been damaged in a break-in attempt or by moisture, or they may be unable to function for no apparent reason. The best way to determine a problem with an electric lock is to check for any obvious indications of trouble, for example the sound of a rattling or buzzing when the door is locked or unlocked. There are a variety of ways a homeowner can rekey his or her car door locks. The easiest method is spraying brake cleaner on the lock cylinder to clean dirt, grime and rust. After five minutes, the key should easily turn the lock. If the cylinder doesn't move easily, it's time to be replaced. Depending on the make and model of the vehicle, it may be difficult to change the lock cylinder without removing the door panel. Many people prefer hiring a professional to rekey their locks since it is simpler and more secure. A locksmith will be in a position to change the pins inside the cylinder so that the old key won't work, and he or she can then reinstall the door handle.