How to Repair Car Key Fobs
Although we use them a lot keys aren't indestructible. They can break down in a variety of ways.
The most frequent issue is a dead battery but other issues can be much more serious. Fortunately, the majority of these can be fixed with a quick DIY fix at home.
Dead Battery
A dead battery is probably the most frequent reason a car key fob stops working. Fob batteries are known to drain quickly, particularly if they are exposed to extreme heat or cold temperatures, humidity or even water. Keep an extra battery in your wallet in case you need it.
You can usually tell when your car key fob's battery is depleted because the LED light will stop glowing. 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.
It is simple to replace the battery in a car keyfob. Find out the kind of battery used. The type of battery should be engraved on the back of the fob. If you're unsure then an easy Google search will help. Once you have found the type of battery, open the key fob at the seam. You'll need a small flathead screwdriver or even your fingernail to pry the two halves apart. Then, take out the old battery and put an alternative one in its place. Make sure you insert the new battery with the positive (+) side facing up toward the buttons in the fob.
Some drivers don't even realize that their fob has died until they lock or unlock their vehicle and the buttons no longer work. In some instances this problem can be resolved by reprogramming your fob, however, it can be costly and time-consuming. Another option is to call roadside assistance and see if they are able to jump your car and get you back on the road.
If you have tried all of these options and your car is still unable to start, then it's time to call an expert. A certified technician will be able to determine if your vehicle's computer system requires reprogramming or the fob simply requires a replacement battery. They can also recommend an auto shop that will replace the key fob. Sometimes an entirely new fob may be the best solution.
Circuit Board Damage
Key fobs aren't indestructible, but it can be able to withstand a variety of physical damage. Battery, circuit board and buttons are all susceptible to wear and wear and tear. It is essential to take care of these components to ensure that your key fob is in good working order.
Verify that the battery still functioning in your key fob. Replace the battery to determine if it resolves the issue. If this does not work, you may have to open the fob and clean its contact surfaces. It can be difficult to open certain key fobs because they do not have an easy-release mechanism. You may cause damage to your fob by trying take it apart. You can purchase a specific tool for opening your key fob. However, you must always follow the instructions of the manufacturer to avoid damaging it.
A damaged or defective key fob circuit board is another common problem. This could be due to numerous factors, such as dirt or moisture getting into the battery compartment. Software issues or an unintentional firmware update may also cause this. If your key fob has stopped functioning, you might want to consider getting it replaced. This can be accomplished by a locksmith who is skilled in this type of work.
Radio interference is a different possibility. It could happen if are other wireless devices transmitting on the same frequency as your key fob, such a radar detectors and home security systems. If this is the case you must contact the manufacturer of the other device to make sure that your key fob won't be affected by their signals.
It is also possible to replace a switch or other electrical component of your key fob. This is a more difficult fix, but you can find online guides that will show you how to fix it yourself. Be careful, however, as the circuit board inside the key fob is tiny and can easily break if handled with care. If you do this yourself, be sure to use a good quality SMT switch and solder it to the correct place.
Buttons that are worn out
Car key fobs are prone to a lot of wear and tear. They are prone to getting dropped and spend a lot time being jostled in your pocket or purse. Sometimes, this jostling can cause buttons to wear out or become stuck. If Recommended Studying happens an easy adjustment could be all that's needed to restore the button's functionality.
Most modern key fobs come with sensors that detect if they've been pressed. This is due to the fact that they decrease the chances of someone stealing your vehicle. If the buttons on your key fob aren't responding when you press them, they're worn out and need to be replaced.
Key fobs also have an electronic circuit inside that sends signals to the car. Those signals include unlock and lock commands, as well as instructions to start your engine. If your internal circuit board is damaged, the key fob you have may not unlock your vehicle or start the engine. This type of damage is usually caused by water or blunt force.
You'll notice that the buttons on your key fob are wearing out if you find yourself pressing the buttons more than usual in order to get them working. In addition, your fob may stop transmitting a signal to the car or it'll have less range than before.
Contact a locksmith right away when you're not able to use your key fob to start your vehicle. They can tell if the key fob is damaged or if the cylinder in your ignition is worn out.
Fortunately, most car key fob issues aren't too serious or complex. The best way to ensure you don't get caught off guard by a malfunctioning key fob is to have a spare in your possession at all times. You'll never be stranded because of an unresponsive or lost key. If you lose your spare key, a professional locksmith can reset it to work with your vehicle's engine. They can also repair any internal damage to your key fob.
Broken Case
The case of your key fob does more than just protect the battery and buttons. The case also houses the circuitry that does all the electrical magic whenever you press a key fob button. The board transmits the signal from your keyfob to your car.
If the board is damaged or dead the key fob won't be able to function. Sometimes, a dead key fob will just need to be reprogrammed, which is something your local auto locksmith or dealership can assist you with.
Batteries could be the cause the key fob's not working. This is a simple fix that can be accomplished at home by replacing the battery. You can purchase an alternative battery at the local auto parts store or online. These batteries are not just for key fobs.
Depending on the type of key fob you have, there are a variety of ways to open it and get inside. You can find out what type of battery your key fob is using by conducting a quick internet search. From there, Recommended Studying can purchase a replacement and easily pop the old one out, and then the new one in.
The most important thing to consider when fixing the broken car key fob is that you don't want to harm the circuit board or buttons further. If you attempt to pry off the key fob with a screwdriver or other hard edge, it could crack the plastic or break the case. A replacement case is inexpensive and you can find a complete fob assembly including the electronic components on eBay or Amazon for less than $40.
If your key fob won't function, make sure you've damaged the circuit board or the batteries. If this is not the situation, you can get it repaired quickly and cheaply by a professional. In the event that it isn't, it's time to invest in an upgrade. Make sure to verify the warranty of any fob replacement or used that you purchase on the internet.