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How to Troubleshoot Door Lock Problems Before Calling a Mechanic Utilizing a lock pick made for specific use or a key opener can aid. You can also spray penetrating oil or linseed oil into the lock to lubricate it and get it moving freely. It is recommended to leave it to a professional, licensed locksmith who is licensed, certified and certified. Here are four typical problems with car doors that they'll fix for you: Power door locks don't work Power door locks offer excellent convenience, but they also bring more complex mechanisms to the car. This also means that things could go wrong in a variety of ways. If the door lock actuator isn't working, it can be a serious issue that requires professional assistance to solve. Before calling a mechanic, try some simple ways to troubleshoot. Check the battery in your key fob. If the battery is dead or close to death it could cause the locks to not work. Replacing the battery is a easy and affordable solution to this problem. Another potential problem is that the power actuator itself might be faulty. This is a typical issue that is generally easy to diagnose. You can utilize a digital multimeter see whether the actuator is receiving power or not. If power is present however the actuator does not respond when you press the door lock button then it may be time to replace the actuator. You can also clean the contacts on the door lock actuator. It's a bit more complicated than cleaning a switch, but usually works. To accomplish this, you'll need to remove the actuator from the door panel and take it off. There are typically bolts holding the exterior of the body So, remove them and then take off the entire body of the lock actuator. After taking the actuator off be sure not to damage the rod connecting it to the locking mechanism. There are typically two bolts in the interior of the door that keep the rod in place, so make sure you remove them also. After the rod has been removed, you can open the door and inspect the latch to make sure it is properly aligned with the locking post. If it's not possible, you can utilize a thin, long object to insert between the lock and the door panel. This should open any locking mechanism, so you can unlock your door by hand. The key fob isn't working. If your car's key fob isn't working, it could be a frustrating experience. There are a few things you can try to make it work again. First, try changing the battery. This is a simple procedure that can save you the cost of having to replace your device completely. YouTube offers a variety of useful videos that help you accomplish this in a few simple steps. If this doesn't work you, you might need to reset the fob. This can be done in the majority of cases, however it requires the assistance of an expert or your car's dealer. It's not easy because newer cars come with security features that need to be configured correctly. Your fob could also be damaged. Physical force, water or scratches on the circuit could cause damage. The majority of the time, the damage isn't evident and can only be identified by opening the fob to look inside. You can identify any issues by inspecting the fob for indications of damage, such as cracks in the circuit board, teeny electronic components that are not connected to the circuit board, or buttons that are not in good condition. You can also open the fob to take out the battery and take a closer look. Using a flathead screwdriver, you can usually break open most fobs and gain access to the battery, however, some require more advanced tools or equipment only available at your car's dealership. If the fob isn't working it is possible to open your car's doors using the physical key. If the physical key isn't able to unlock your car, it might be time to call an expert locksmith or visit the service center for more serious repair. If your key fob doesn't turn on or turn your car on, it may be due to a defective ignition cylinder. This is a costly fix and should be left to experts. If the key fob is working perfectly with the door locks, it should still be able to start the car using its inductive backup system. The lock is jammed. If your lock won't move at all, despite trying to insert the key, it is likely to be something blocking the mechanism. It could be as simple as the tumblers becoming clogged by rust or dirt, or that the pins are stuck in a partially raised position. First, lubricate your lock mechanism. Spray fix car door as RP7 or graphite spray in the keyway and then insert the key a few times to release any debris that is stuck in the lock cylinder. This will also help to lubricate the mechanism and prevent future issues. You can also use brake cleaner to lubricate parts of the lock cylinder and to remove any grime or rust that might be blocking the tumblers. You can purchase brake cleaning fluid from many home improvement stores or auto supply stores. It is recommended to avoid oil-based products like WD-40 since they can block up the brake mechanism over time. Another common problem that can cause your door locks to get jammed is that the frame of the door has changed in time due to temperature and weather changes. This can cause the latch or deadbolt on the door to no longer align with the hole in the frame of the door. It is easy to fix this issue by simply tightening the hinges on the door and replacing any broken or stripped screws. Regularly checking the condition of your locks is a good idea to regularly check the condition of your locks. This will prevent them from getting broken or jammed, and will save you the hassle and expense of calling a locksmith assistance. Don't hesitate to call your local mechanic of choice in the event that you encounter a broken or locked door lock. They can identify the issue quickly and suggest the best option. If you're seeking an easy fix for your power doors or have a more serious problem, they will be happy to help! The lock is jammed. Stuck locks can be frustrating However, they are usually an inevitable aspect of owning a car. Whether the lock is locked in an unlocked position, or doesn't turn at all, you're going to want to address it earlier rather than later, before your issue gets worse. Fortunately, there are a few easy and quick fixes that can help get you out of this bind. Begin by examining the lock and determining what's blocking it from working correctly. Sometimes, a foreign object may get stuck in the lock or a screw can become loose. You can resolve either of these problems by cleaning the lock or tightening the screws. You can also straighten or repair the ball bearings of the lock if they've become damaged or warped due to repeated use. Another common reason for a locked that is stuck is that it's worn out and not responding to the jiggling. If your lock has stopped turning when you jiggle the knob, it's time to replace it and ensure that it's properly keyed to your other doors. If your lock is stuck and nothing wriggling, spraying lubricant, or changing the knob doesn't seem to work, you'll likely need to contact locksmith assistance. They have the knowledge and tools to safely remove locks that are stuck without causing any additional damage to your vehicle or door. Sometimes, the cylinder of the lock may be damaged. This could be the case in the event that the lock was forced open in the past or the lock issue was not addressed. It is recommended to examine your cylinder on a regular basis for signs of corrosion or wear and replace it when necessary. This will ensure that your vehicle is as secure as possible. If the lock cylinder is damaged or cracked, it can be an extremely risk to the safety of your passengers as well as you. So be sure to have any damaged cylinders repaired as soon as possible.