Car Remote Key Repair
Modern car remote keys are useful and convenient, however they can be frustrating when they stop functioning. There are fortunately, quick fixes that will usually get them working again.
The first step is to replace the battery. Most fobs are powered by lithium coin cells. These are cheap and easy to locate.
Broken Electronics
The electronic circuit board that is in your car key remote transmits and interprets signals for your vehicle. The key fob will stop working in the event that this board is damaged. Unlike battery failure, which is typically very simple for most drivers to fix at home, damage to the receiver or transmitter of the remote key will require a professional auto locksmith or dealer for your car.
Most remote key fobs are powered by lithium ion coin battery, which has an extremely long shelf life. However, they will not last for long. Change the batteries could solve your issue, especially those who have had them for a long time. You might be shocked if you've used your remote for a long time and the buttons don't respond at all. This is the case even when the batteries are brand new. Because the buttons on your key fob undergo a lot of jostling and rubbing, they may break or become inactive over time. In this situation, taking off and cleaning the buttons will usually fix the problem.
If your remote's buttons still don't work, you may have to re-program it to match the system of your car. This is typically done by turning the ignition key several times while the doors are closed. The procedure will differ based on your car's make and model, but you can find instructions online or contact a professional for help.
If the key fob is made of an exterior made of plastic, it's possible to remove the cover and then pry it off. But be careful not to damage the buttons or other internal components. The best tool to use to accomplish this is needle-nose pliers with longer tips, which will better grasp small components. Lubricating pliers using putty, super glue or melted tallow can help them grasp delicate parts. It's also a good idea to hire an automotive locksmith do this, as improper methods can damage the electronics inside. The plastic can be broken if you try to take the fob apart with force. It's also possible that the buttons connected to it could snap off accidentally if you forcefully pry it apart.
Faulty transponder chip
If you've managed to start your car using the remote key, but you're not able to do it ever again, it could be a sign of a problem with the transponder chip. This is because the key relies on a tiny electronic component to communicate with the immobilizer system. It transmits a signal to the system that your key is legitimate and that you should be capable of starting the engine. If the chip fails to correctly transmit this message, the immobilizer will disable your vehicle.
This problem is more common in older vehicles however, it can happen in more modern models as well. This is due to the transponder chip may wear out over time. This component can be replaced by a car locksmith however it is costly.
In some instances the chip in your key could be dead. In this case, the dealer will have to replace it. This is the most expensive but necessary way to get your vehicle back on the road.
Another possibility is that the key's chip has become corrupted. This means it can not communicate with the immobilizer. This could happen when the battery is replaced or if the key has been physically damaged. A Mesa auto locksmith can fix this issue, however you may need to visit the dealer to get your key programmed.
If you're experiencing issues with your remote key, you must first attempt to backup your device. If this doesn't fix the issue, disassemble your key fob and perform an examination. Make sure none of the buttons appear to be broken or loose. These parts are used a lot and may become loose over time. If they are loose it is recommended to have them soldered back in place by a professional. In a lot of instances, this will return your key fob to full functionality. This is especially the case for keys that have been accidentally put into the wrong ignition lock.
Damaged Battery
If the key fob not working after you have tried a new one, it could be due to a variety of other issues. Fobs could be damaged by water or dropped or stepped on. Internal connections, like those that connect to the battery terminals of the remote, can be damaged or broken. It is possible to reprogram the key fob, and it could be something you can tackle by yourself if have a spare fob of the same model and make.
Modern key fobs should be programmed to work with the vehicle to ensure that only you are able to unlock the car's doors. This is a crucial step to safeguard your vehicle and stop others from using your key fob to gain access to your vehicle or cause electrical system issues. Some engine error codes, or even normal wear and tear, can cause problems with the programming of your key fob. It is essential to get your key fob reprogrammed professionally by a professional who has the appropriate equipment.
It's possible that the problem lies with the buttons that are a much easier fix than replacing the whole key fob. Often, key fobs have rubberized buttons that are jostled around all the time, and can break or become loose. If you are able to see that the buttons aren't damaged, you can try adjusting them manually.
Open the fob key to look at it, but be cautious. Certain key fobs don't have an easy release mechanism. You may require a small tool or screwdriver to break them. Some are sealed and can't be opened at all without the use of specialized tools. You'll likely need to go to a dealership to have it professionally opened. You can use a spare keyfob that is the same make and model to start the programming mode of your car. This could require you to shut and lock the doors, switch on and off lights as well as electronics, and then press a set of buttons in a specific order that is specific to your vehicle.
Failing Buttons
Mechanical damage could be the cause if your key fob's buttons aren't working or require pressing them extremely forcefully. The key fob's functionality can be affected by a fall on concrete or accidentally hitting an item by using a sharp object. If this is the case you'll need to remove the key fob and inspect it thoroughly to check if any of the buttons appear be damaged or out of their place. If this is the situation, a locksmith will repair it for you.
The accumulation of crud or dirt can cause buttons to fail. You should clean your key fob using an swab of cotton that has been submerged in alcohol. You may also need to clean the surface of the keys. You should also determine if the issue is related to your car lock or the key fob. If you don't have an extra key fob to test, think about using the keys in a different vehicle to see if they work also.
The condition of the battery will also determine if you need to reprogram the key fob. If your key fob is unable to operate after you replace the batteries, it likely indicates that the battery's terminal contacts are damaged. Pressing the buttons on your key fob too often while out of range or disconnecting your car battery could also erase the programming of an electric key fob.
If This Web page is still not working after replacing the battery, you should be able to reprogramme it with your vehicle. This Web page will be dependent on the specific type of vehicle and the type of key fob you have, but generally, you'll have to manually lock and unlock the doors of your car and then insert the key fob into the ignition, turn it to the accessory position, and push a button on the remote. If this is successful, the exterior and/or interior lights should light up. You can retest the key fob to confirm that it was successfully programmed. In less rare cases, a key fob can stop working if there is an issue with the door lock itself.