The Comprehensive Guide To Remote Key Repair
Car Remote Key Repair
Modern car remote keys are useful and convenient, however they can be frustrating when they stop functioning. Fortunately, there are quick fixes that will usually bring them working again.
Replace the battery first. Most fobs are powered by lithium coin cells. These are cheap and easy to locate.
Broken Electronics
The electronic circuit board inside the remote car key transmits and interprets signals for your vehicle. The key fob will cease to function if this board is damaged. Damage to the receiver or transmitter will require an auto-locksmith who is a professional or a dealer in your car.
The majority of remotes that use key fobs have lithium ion coin batteries which have a reasonably long shelf life but will not last forever. Changing the batteries will likely solve your problem, especially if you've had them for a while. You may be surprised if you've been using your remote for some time and the buttons do not respond at all. This can happen even in the case of batteries that are new. Because the buttons on your key fob are subject to frequent jolts and rubbing, they may fail or cease to function over time. If this happens removal of the buttons and cleaning them before replacing them can often solve your issue.
If the buttons on your remote aren't working, you might have to change the programming to match your car's system. This is usually done by turning the key in the ignition several times with the doors shut. This will depend on the model and make of your vehicle, but you can find the instructions on the internet or consult a professional.
If the key fob has a plastic exterior, it's possible to remove the cover and pull it off. Be careful not to scratch any buttons or internal components. This is best done using needle-nosed pliers that have longer tips. They can easily grasp small components. Lubricating the pliers using super glue, melted tallow or putty will help them hold delicate parts. This is something that an automotive locksmith could use, since improper methods could damage the electronics. Trying to forcefully pry the fob apart could break the plastic, and it's possible to accidentally cut off any buttons attached to it.
Faulty Transponder Chip
If you've managed to start your car successfully using the remote key, but it's not working again, it could indicate a problem with the transponder chip. This is because your key relies on this small electronic component to communicate with the immobilizer system. It sends the signal to the system to notify it that your key is valid, and you should be able start the vehicle. If the chip isn't able to transmit this signal the immobilizer will shut down your vehicle.
This problem is more common in older vehicles, but it is also a problem in more modern vehicles. The transponder chip wears down over time. This part can be repaired by a car locksmith, but it is expensive.
In some instances the chip may be dead. In this instance the dealer will need to replace it. This is the most expensive but necessary way to get your car back on the road.
The other possibility is that the chip in the key has become damaged and it is unable to longer communicates properly with the immobilizer system. This can occur when the battery is replaced, or in the event of physical damage to the key. A Mesa car locksmith can sometimes fix this, but it might be necessary to visit a dealership for your key reprogrammed.
If you're experiencing issues with your remote key the first thing you need to do is to create backup. If this doesn't fix the issue, disassemble your key fob and perform a visual examination. It is important to ensure that all buttons appear to be damaged or loose. These components are frequently used and can loosen over time. It's best to have them put in place by a professional if they are loose. This will often make your key fob. This is especially the case for keys that have been accidentally inserted into the wrong ignition lock cylinder.
If the key fob still not working after you have tried a new one it could be due to other issues. Fobs can be damaged by water or dropped or stepped on. Internal connections, like those that connect to battery terminals in the remote, may also be damaged or disconnected. You may have to reprogram your key fob if don't have a replacement that is the same model and type.
Modern key fobs need to be programmed to match your car and ensure that only you have the ability to unlock the car's doors. It's a crucial step to safeguard your car and prevent others from being able to use your key fob to gain access your vehicle or cause issues with the electrical system. Certain engine error codes, or even normal wear and tear could cause a problem with the programming of your key fob. Professionals equipped with the right tools can reprogramme your key fob correctly.
It's possible that the issue is in the buttons that are a much simpler fix than replacing the entire key fob. Key fobs often feature rubberized buttons that can be damaged or loosen up over time. If you notice that the buttons do not appear to be damaged, you may need to adjust them manually.
It is best to open the key fob and look at it, but be careful. Some key fobs do not have a simple release mechanism. You may require a screwdriver or small tool to remove them. Some are sealed and cannot be opened without the use of specialized tools. You'll likely need to bring it to a dealer to have it professionally opened. If you have an extra key fob from the same model and make you want to use it, try using it to enter your car's programming mode. Based on remote key repairs of your car this could mean closing and locking the doors, switching lights and electronics on and off and pressing a certain set of buttons in a particular sequence.
Failing Buttons
Mechanical damage could be to blame when the buttons on your key fob don't function or require pressing them extremely in a very forceful manner. Dropping the key fob on concrete or accidentally hitting a button with a sharp object could impact the way it works. You'll have to dismantle the key fob, then look over it to determine if there are any buttons that appear to be broken. If that is the case, a locksmith can repair it for you.
Dirt and crud can cause buttons to fail. You should clean your key fob using the help of a cotton swab which has been immersed in alcohol. You may have to scrub the surface on the keys. You should also try to determine if the issue is with your car's locks or with the key fob itself. If you don't have an additional key fob to test, you might consider using the keys in a different vehicle to see if they work as well.
The condition of the battery will determine whether or not you should reprogram the key fob. If your keyfob does not work after replacing the batteries the terminal contacts of the battery may be damaged. Pressing the buttons on your key fob repeatedly while you're out of range or disconnecting your car battery could also erase the programming of an electronic key fob.
If your key fob still doesn't work after replacing the battery, you need to re-programme it to your vehicle. This will depend on the particular type of vehicle and the type of key fob you have, but generally you'll need to manually lock and unlock the car's doors by inserting the key fob into the ignition, rotate it to the accessory position, and push the button on the remote. Usually the interior and exterior lights will flash when this has worked. It is possible to test the key fob to verify that it was successfully programmed. In rare instances the key fob might be inoperable due to an issue with the door lock.