How to Repair Car Key Fobs
Even though we use them a lot, key fobs are not indestructible. They can actually be destroyed in various ways.
Other issues can be more important than a dead battery. Many of these issues can be solved with a simple fix at home.
Dead Battery
A dead battery is the most frequent reason for a key fob that is not working. Fob batteries can deplete quickly, especially when they are exposed to hot or humid temperatures or water. It's a good idea keep an extra battery in your wallet just in case.
The LED light will generally stop blinking when the battery in your car key fob is running low. It's also possible that your key fob won't function at the same distance it did in the past. In this scenario the key fob could require reprogramming or replaced completely.
Fortunately, replacing the battery in a car key fob is simple. First, determine what kind of battery is used. key repair should be engraved on the back of the fob. If you're unsure it is, an easy Google search will be helpful. The key fob can be opened along the seam once you have identified the battery type. You will need to use small flathead screwdrivers or even your fingernail pry the two halves apart. Then, take out the old battery and insert a new one in its place. Be sure to insert the new battery with the positive (+) side facing towards the buttons on the fob.
Some drivers may not be aware the fob is dead until they try to lock or unlock their vehicle and the buttons do not respond. In some instances this problem can be resolved by reprogramming the fob but that can be costly and time-consuming. Another option is to call roadside assistance and see if they are able to jump your vehicle and get you back on the road.
If you've tried all three of these methods and your car is still unable to start then it's time for an expert. A trained technician can tell if your car's computer needs reprogramming, or if the fob simply needs a new battery. They can also recommend a reliable auto shop to replace your fob's keys. In the end, though, sometimes a brand new fob is the most effective solution.
Circuit Board Damage
The key fob isn't indestructible, but it is able to withstand a lot of physical harm. The battery, circuit board and buttons are all susceptible to wear and tear. It is crucial to take care of these components to ensure your key fob remains in good condition.
Make key repair car that the battery still functioning on your key fob. If it is then replace the battery and determine if this fixes the issue. If this doesn't work, you may have to open the fob and clean its contact surfaces. This can be difficult because some key fobs don't have a release mechanism that is easy to open them up and you may damage your fob if you try to force it apart. You can buy a tool for opening your key fob. However, you should always follow the instructions of the manufacturer to avoid damaging it.
A damaged or defective key circuit board for the fob is another frequent issue. This can be caused by many things, including dirt or moisture entering the battery compartment. Software issues or even an unintentional firmware update may be the cause for this. If your key fob is not working, you may be interested in having it changed. This can be accomplished by a locksmith who is skilled in this type of work.
Radio interference is another possibility. This can occur in the event that you have other wireless devices that transmit on the same frequency, like radar detectors or home security systems. If this is the case, consult with other manufacturers of the device to ensure that your key fob's signal isn't affected by their signals.
There may be a need to replace a switch or other electrical component in your key fob. There are online guides that show you how to fix this yourself. You should be careful to be careful, however, since the circuit board that is inside your key fob is very small and can easily break when handled rough. If you're doing it yourself, ensure you use an SMT switch of good quality and then solder the switch into place correctly.
Out Buttons Out Buttons
Car key fobs are subject to a lot of wear and tear. They are more prone to being lost and spend a significant amount of time in your pocket or purse. This jostling can sometimes cause the buttons to wear down or become stuck. In this case it's possible that a simple adjustment will be all it takes to restore the button's functionality.
Most modern key fobs have sensors on them that detect if they've been pressed. They're made to do this so that they can decrease the chance of thieves stealing your car. If the buttons on your key fob don't work when pressed, they are damaged and should be replaced.
Key fobs also have a circuit board inside them which transmits signals to your car. The signals include commands to unlock and lock and instructions to start your engine. If the circuit board inside your vehicle is damaged, your key fob might not allow you to unlock your car or even start the engine. Generally, this kind of damage is caused by water, blunt force, or something scratching the circuit board.
You'll be able to tell that the buttons on your key fob are wearing out when you press more than usual in order to get them working. Your fob might also stop sending signals to your car or have a smaller range.
If you're unable to get your key fob to unlock or start your car, you need to call an emergency locksmith in your area. They can tell if the key fob is damaged or if your ignition cylinder is worn out.
Fortunately, most car keyfob issues aren't very complicated or even serious. Keep an extra key fob in your vehicle at all times to avoid being surprised by a malfunctioning key. This will ensure that you're never left stranded somewhere because of a lost or malfunctioning key. If you do happen to lose your car key spare A locksmith can change the key to work with your car's ignition. They can also fix any internal damage to your key fob.
Broken Case
The case of a key fob does more than just shield the buttons and batteries. The case also houses the circuitry that performs all the electrical magic every time you press the key fob button. The board transmits the signal from your keyfob to your car.
Your key fob will not function if the board is damaged. Sometimes a dead key fob may need to be reset which is something that your local auto locksmith or dealership can help you with.
Batteries could be the reason the key fob's not working. The battery can be replaced at home. You can purchase a replacement battery at your local auto parts shop or online. These batteries are not only intended for key fobs.
Depending on the type of key fob you have, there are various ways to open it and get inside. You can determine the kind of battery your key fob is using by conducting a quick internet search. You can then purchase a new replacement and pop the old one out and put the new one in.
The main concern when you repair an old car key fob is that you don't want to cause damage to the circuit board or buttons further. When you try to break a key fob with an edge that is sharp like a screwdriver can break the case or crack the plastic. A replacement case isn't much and you can purchase a complete fob assembly including the electronics on eBay or Amazon for less than $40.
If broken car key repair does not work, check if you have damaged the circuit board or batteries. If that's not the situation, a professional could repair it for you quickly and cost-effectively. Otherwise, it might be time to consider a replacement. Be sure to look for a warranty on any replacement or used fobs that you purchase on the internet.