How to Repair Car Key Fobs
Key fobs can be damaged even if we utilize them frequently. They can be destroyed in different ways.
While the most common problem is an unresponsive battery however, other issues could be much more serious. Fortunately, many of them can be resolved by making a quick DIY fix at home.
Dead Battery
A dead battery is likely the most frequent reason the car key fob stops working. Fob batteries tend to drain quickly, especially if they are exposed to extreme heat or cold temperatures, humidity or water. It's a good idea keep an additional fob battery in your wallet in case.
The LED light will typically stop glowing when the battery in your car key fob is running low. It's also possible that the fob will no longer work from the same distance it did in the past. In this case it might be necessary to reprogram the key fob or even replace it entirely.
It is easy to replace a car keyfob battery. First, you need to determine the kind of battery is used. The type of battery you are using should be stamped on the back of your key fob. Google can help in case you're unsure. Once you've found the type of battery, open the key fob near the seam. Make use of a flathead screwdriver or even your fingernail to pry apart the two halves. Take the old battery out, and replace it with a brand new one. Place the new battery in such a way that the positive (+) face is facing the buttons on the fob.
Some drivers may not realize their fob is dead until they attempt to lock or unlock their car and the buttons do not respond. In some instances this problem can be resolved by reprogramming your fob, however, it can be costly and time-consuming. You can also call roadside assistance to find out whether they are able to restart your vehicle and get it back on the road.
If you've tried all the options and your car still doesn't turn on, it's time to call a professional. A certified technician can determine the computer in your car needs reprogramming, or if the fob is only in need of a new battery. They can also recommend a reliable auto shop to replace your fob's key. Sometimes it is possible that a new fob could be the best option.
Circuit Board Damage
A key fob is able to withstand a lot of physical abuse and is not indestructible. The battery, circuit board and buttons will all experience their fair amount of wear and tear over the course of time It is therefore essential to be on guard and take care of them in order to keep your car key fob operating well.
Verify that the battery still functioning on your key fob. If it is, replace the battery and check if it fixes your issue. If this does not work, you might need to open the fob and clean the contact surfaces. It isn't easy to open certain key fobs because they do not have an easy-release mechanism. You may damage your fob by trying force it apart. You can purchase a specific tool to open your key fob, however it is recommended to follow the instructions of the manufacturer to avoid damaging it.
Another issue that is common is a damaged or corrupted circuit board on the key fob. This could be due to numerous factors, such as dirt or moisture getting into the battery compartment. Software issues or even an accident firmware update could also cause this. If your key fob isn't functioning, you might be interested in having it reprogrammed. This can be accomplished by a locksmith who is skilled in this kind of work.
Radio interference is another possible cause. It could happen when you have other wireless devices that transmit at the same frequency, such as radar detectors or home security systems. If key fob repair is the case, you should consult with other manufacturers of your device to ensure that your key fob's signal isn't affected by their signals.
You may also need to replace a switch or another electrical component in your key fob. This is a more difficult fix however, you can find guides online that show you how to fix it yourself. Be careful to be careful, however, since the circuit board in your key fob is small and can easily break when handled rough. If you're doing this yourself, be certain to use a top quality SMT switch and then solder it to the correct place.
Buttons that are worn out
Car key fobs can suffer lots of wear and wear and tear. They're susceptible to being dropped, and they often spend a lot of time moving around in your pocket or purse. Sometimes, this jolting can cause the buttons to wear out or snagged. If this happens it's possible that a simple adjustment will be all that's needed to get it working again.
Modern key fobs are equipped with sensors that detect when they have been press. They're designed to do this to reduce the likelihood of someone stealing your car. If the buttons on your key fob don't respond when pressed, they are damaged and should be replaced.
Key fobs also have a circuit board inside them which transmits signals to your car. Those signals include commands to unlock and lock and commands to start your engine. If your internal circuit board is damaged, your key fob might not unlock your vehicle or start the engine. Typically, this type of damage is caused by water, force blunt or a scratch on the circuit board.
You'll notice that the buttons on your key fob are wearing down when you press them harder than usual to get them to work. Additionally the fob might cease transmitting signals to the car, or have less range than before.
If you're unable unlock your key fob, unlock or start your vehicle, it's crucial to call a locksmith near you immediately. They'll be able to determine whether the key fob is damaged or your ignition cylinder has worn down.
Fortunately, the majority of car key fob problems aren't serious or complicated. Keep an extra key fob in your car at all times to avoid being shocked by a malfunctioning one. This will ensure that you're not stuck in a bind because of a lost or malfunctioning key. If you lose your spare key, a professional locksmith can rekey it to work with your vehicle's engine. They'll also be able fix any internal damage that may have occurred to the key fob.
Broken Case
The case for your key fob provides more than just protection for the buttons and battery. The case also houses the circuitry that does all the electrical magic every time you press the button on your key fob. The circuit board relays the signal from your key fob to your car.
Your key fob will not work if this board is damaged. Sometimes, a key fob that is dead may need to be reset which is something that your local auto locksmith or the dealership can assist you with.
Another reason your key fob might not be functioning is that the batteries are dying. The battery can be replaced at home. The positive side is that you can get a replacement battery on the internet or at your local auto parts store, since the batteries aren't limited to key fobs.
There are many ways to open up the key fob and go inside it, depending on the type. You can find out what kind of battery your key fob uses by conducting a quick online search. From there, you can buy the replacement and simply take the old one out and put the new one in.
When fixing a damaged key fob, the primary concern is not to destroy the circuit or buttons in any way. If you attempt to pry away the key fob with the screwdriver or another sharp edge, it could break the plastic or break the case. Luckily, a replacement case isn't expensive and you can buy the entire fob and the electronics on eBay or Amazon for less than $40.
So, if your key fob doesn't work look into whether the batteries are depleted or whether the circuit board has become damaged. If this isn't the case, a professional will fix it quickly and inexpensively. If not, it may be time to replace the fob. Be sure to look for a warranty on any replacement or used fobs you buy on the internet.