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Car Door Locks Repair Car doors can get stuck due to a variety of reasons. The latch mechanism is usually the culprit. The good news is that most of these problems are easily solved with a few simple techniques. Learn how to fix it by reading this article! Check the Key Over time, the tumblers in the door lock of your car may become blocked by dirt and rust. This could prevent the lock from opening and closing when you insert your key fob or turn the key in the ignition. This could cause the lock mechanism to become jammed. In this instance you might need to remove the handle to access the lock mechanism. It's an easy DIY task and is done at home. There are many different reasons why your door latch might be stuck. It could be due to a physical blockage in the latch mechanism or an electrical issue with your key fob or solenoid for your door lock. Another possibility is that someone knocked the latch into a locked position, even though the door was opened. If the problem is with your key, try putting it in and out of the lock several times to see whether the tumblers are moving freely. This will reset the lock. You can also make use of a lock deicer to melt ice and make it easier to open. If you're still having trouble you can try spraying a multi-purpose lubricant in the mechanism of the door lock. Make sure to shut off the lock prior to you do this. Otherwise, you may end up damaging the latch mechanism. When the lock is well-lubricated, you should be in a position to open it using the door handle. If not, there may be a problem with the latch mechanism and you'll have to replace it. If a latch is locked and you cannot open it, you can employ a screwdriver and manually push it up to the final unlocked position. To do this, first pull the handle inside before pulling the exterior of the car. Utilizing a screwdriver, apply pressure to the left side of the latch to allow it to be pushed upwards to the final location that is unlocked. Repeat this process for the right leg of the latch to complete the reset. Once the latch is unlocked, close the door to test it. Check the Battery The car door lock works by sending electronic signals to the solenoid of each door. The solenoid then converts these signals into mechanical action. In this case turning a bar of steel which latches the doors. It can be a hassle if your car's doors won't lock or unlock with the keyfob or from the outside or inside. It is usually possible to solve the issue without taking your vehicle to a mechanic. The most common reason for why the door latch of your car may not be working is the mechanism for locking your door might simply be jammed up. You can test this by opening your door and looking at the latch mechanism. It should have “open” jaws at the top that are designed to allow the anchor to be caught in the door jamb. The latch will then turn into a closed state to lock it to the anchor. If the latch is shut and it doesn't turn to the correct position, it won't be able to engage with the anchor and shut the door. To fix this issue, you'll need to lubricate the latch mechanism by applying a kind of oil lubricant (like WD-40) to the inside of your door. Then you can use a screwdriver to push the latch into the open position so you can begin to rotate it back into its proper orientation. It's best to have a friend or family member assist you in this process as it can be very difficult to do alone without damaging something. After you've lubricated your latch mechanism, it's vital not to try to force the key in. You could damage the key inside the lock if you attempt this. Alternatively, if you're having trouble locking or unlocking your vehicle using the key fob, and have tried everything above, you should probably seek out a professional technician for some more advanced diagnostics and repair. They'll pinpoint the root of the issue and offer the most effective solution for your vehicle and you. Check the Wiring A malfunctioning control module could be the reason for an inoperative door lock inside the car. These modules are responsible for the electrical locking and unlocking mechanisms. They connect to the actual latch and handle through a series of rods that allow them to move up and down. When they begin to wear out, the system will stop working correctly. This is a frequent issue in older cars. Other issues can cause the door lock and then get stuck in a locked state due to dirt or grime that has accumulated on the mechanism of the lock or a jammed handle. A simple lubrication can fix the problem. You can purchase WD-40 or a penetrating catalyst from home improvement stores, auto supply shops, or online. You can use it to lubricate the car door locks through the keyhole. If you are unable to open the door with the button or key that's located on the inside of the vehicle, it's recommended to examine the wiring and fuses for any issues that may be causing the issue. If the wiring is ok the issue will be related to one of the solenoids for power locks or actuators. A professional locksmith will be able to identify and fix any issues with the door locks of your car. They can also assist you to install any new features such as smart keys, which will make your car more convenient in the future. The procedure for taking off the handle and interior panel is different from vehicle to vehicle however the principle is the same. It is generally necessary to locate and remove all the fasteners holding the handle plate or the panel in place, then gently lift the panels without damaging them. You can then gain access to the door latch and lock actuator to check what's going on. After you've got the panel removed, you can usually reach the latch that is locked by placing an screwdriver between the legs of the door latch and pushing it up until it is in its final position that is unlocked. From there you can close the door to confirm whether the latch has been reset. Check the Actuator The door lock actuator, like any electrical device can malfunction over time. It can be caused by various reasons like corrosion resulting from exposure to water or other contaminants. Additionally, the actuator can also become misaligned or damaged due to mechanical stress or excessive force. One of the most common indicators that a door lock actuator is starting to go bad is when you are unable to unlock the doors even when you use the key fob or manually turn on the switch inside the vehicle. This could be a major issue since it implies that someone has the ability to lock the car without having the right keys. To check the condition of the door lock actuator it is important to first determine whether it is receiving power from either the central locking system or the power windows control module. Then you can test the functionality of the actuator with a multimeter, observing any unusual or erratic behavior. You can also examine the actuator to identify evidence of wear and tear and ensure that the linkage hasn't been obstructed. The actuator cannot be repaired and must be replaced when it breaks. This can be accomplished by a professional but you'll need to take off the front door to gain access to the actuator. It is a good idea before you attempt any tests on the actuator of the door lock, to put on safety glasses and to consult the owner's manual of the vehicle to know about the recommended safety precautions. You should also make sure you're working on a level surface and have a socket available. To test central locking key repair , you'll need to locate the latch in the door and find the gap or hole it's meant to catch in. After that you can insert a pen or key into the gap and flick/push it towards the door in a semi-upward movement. If the door's latch moves then the actuator could be functioning properly and the issue is with the key fob or remote.