Car Remote Key Repair
Modern car remote keys are very useful and convenient, however they can be a hassle when they stop working. There are some quick solutions to get them working again.
First, try replacing the battery. The majority of fobs are powered with lithium coin cells. They are affordable and easy to locate.
Broken Electronics
The electronic circuit board inside your remote car key transmits and interprets signals for your vehicle. The key fob will cease to function in the event that this board is damaged. Damage to the transmitter or receiver 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 that have a long lifespan, but they won't last forever. If you've been using the batteries for a long period of time replacing them is likely to solve the issue. You may be surprised when you've been using your remote for a long time and the buttons do not respond in any way. This is true even if the batteries are new. Because the buttons on your key fob get a lot of jostling and can break or become inactive over time. If this is the case, removing the buttons and cleaning them prior to placing them back in place will usually resolve your problem.
If your remote's buttons still not working, you might have to re-program it to match the system of your car. This is typically accomplished by turning the key in the ignition repeatedly while keeping the doors closed. This will depend on the make and model of your vehicle, but you can find the instructions on the internet or consult a professional.
If the key fob is made of plastic, you can take off the cover by prying it off. But be careful not to scratch the buttons or other internal components. This is best done using a pair needle-nosed pliers that have longer tips. They are able to grasp small parts. Lubricating the pliers using super glue, melted tallow, or putty can assist them to hold delicate parts. It's recommended to employ an automotive locksmith do this, since improper techniques can damage the electronic components inside. Trying to forcefully pry the fob apart can break the plastic, and it's also possible to accidentally snap off any buttons that are attached to it.
Chips in the transponder are defective.
Transponder chips can fail if you've previously had the ability to start your car using the remote key, but you are unable to do so again. This is because the key relies on a tiny electronic component to communicate with the immobilizer system. It sends a signal to the system that your key is valid and you should be in a position to start the engine. If the chip fails to transmit this signal the immobilizer will shut down the vehicle.
This issue is more prevalent in older vehicles, but it can also be found in newer vehicles. This is because the transponder chip wears out over time. It is possible to get a locksmith for your car replace this portion of your key, but it can be costly.
In some instances your chip could be dead. If this is the scenario, the chip will require replacement by a dealer. This is the most expensive option, however, it is often necessary in order to get your car back on the road.
The other possibility is that the chip inside the key has become damaged and it is unable to is able to communicate with the immobilizer system. This can happen if the battery is replaced or if your key is physically damaged. A Mesa auto locksmith can solve this issue, but you may need to go to the dealership to have your key programmed.
If you're having problems with your remote key, the first thing to try is backup. If this doesn't fix the problem, you should disassemble your key fob and conduct an inspection. Verify that nothing on the button appears to be loose or broken. These components are frequently used and may become loose over time. If they're loose it is recommended to have them soldered back in place by an experienced professional. This will often restore the functionality of your key fob. This is particularly applicable to keys that were accidentally inserted into the wrong ignition lock cylinder.
Damaged Battery
If the key fob is still not working after you've tried a new one it could be due to other issues. Fobs are damaged by water, dropping them, or stepping on them, and internal connections, such as those that connect the battery terminals inside the remote, may be damaged or disconnected. You may have to reprogram your key fob if don't have a spare of the same type and model.
Modern key fobs must be programmed to work with your car and ensure that only you are able to open the doors of your car. It's a necessary step to safeguard your car and prevent others from being able to use your key fob to gain access your car or cause problems with the electrical system. Certain engine error codes, or even normal wear and tear, can cause problems with the programming of your key fob. Professionals with the right equipment can reprogramme your key fob properly.
It's possible that the problem is in the buttons, which is a much easier fix than replacing the whole key fob. Key fobs typically have rubberized buttons that are jostled around all the time, and can break or become loose. If you can see that the buttons aren't damaged, you can try adjusting them manually.
Open the key fob to inspect it, but be cautious. Certain key fobs do not have a simple release mechanism. car key immobiliser repair might require an instrument or screwdriver to pry them apart. Some fobs are sealed and cannot be opened without the use of specialized tools. You'll have to go to a dealer to have them 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 the mode of programming for your car. Depending on your car it could involve closing and locking the doors, turning the lights and electronics on and off, and pressing a specific set of buttons in a particular order.
Failing Buttons
If your key fob has buttons that don't work or require being pressing very hard in order to perform it could be the result of mechanical damage. Dropping the key fob onto concrete or accidentally hitting a button with a sharp object could impact the way it performs. You'll have to dismantle the key fob and look at it to determine whether there are any buttons that appear to be broken. A locksmith will fix it for you, if that's the case.
Dirt and crud can cause buttons to fail. It is recommended to clean your keys fob with an swab of cotton that has been immersed in alcohol. You may also need to clean the surface of the keys themselves. It is also important to determine if the issue lies related to your car lock or the key fob. If you don't have an extra key fob to test, you might consider using the keys in a different vehicle to see if they function as well.
If the key fob needs to be reprogrammed also depends on the condition of its battery. If the key fob you have is not able to work after replacing the batteries the terminal contacts of the battery are likely damaged. You can also deprogram your electric key fob by pressing the buttons too frequently when you are not in range, or by disconnecting the battery in your car.
If your key fob does not work after replacing the battery you should have it reprogrammed to your vehicle. This will depend on the vehicle model however, generally you'll need to manually lock and unlock the car's doors by inserting the key fob into the ignition, turn it to the accessory position and then push the button on the remote. Usually the exterior and interior lights will flash if this method has worked. You can test the key fob to verify that it was successfully programmed. In rare instances, a key fob can not function if there is an issue with the door lock itself.