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How to Repair Car Key Fobs

Even though we use them numerous times keys aren't indestructible. They can actually be destroyed in different ways.

Other issues could be more grave than the battery being dead. The majority of problems can be fixed with a quick fix at home.

Dead Battery

A dead battery is the main reason for a key fob not working. Fob batteries are known to drain quickly, especially if they are exposed or cold temperatures, humidity or water. Keep an extra battery in your wallet in case you require it.

You can usually tell that the battery in your car key fob is dying because the LED light will cease to blink. The key fob could also stop working from the same distance that it used to. In this case it might be necessary to re-program your key fob repair fob or even replace it entirely.

Fortunately the replacement of a car key fob battery is easy. First, you need to determine the kind of battery is used. The type should be embossed on the side of the fob. Google can help in case you're unsure. Once you've found the battery type you want to use, open the key fob at the junction. You will need to use an small screwdriver with a flat head or even your fingernail to break the two halves. Then, you can remove the old battery and put a new one in its place. Make sure you insert the new battery with the positive (+) side facing upwards towards the buttons in the fob.

Some drivers may not be aware the fob is dead until they try to lock or unlock their car and the buttons aren't responding. In some instances this problem can be resolved by reprogramming the fob but that can be costly and time-consuming. You can also contact roadside assistance to determine whether they can jumpstart your vehicle and get it back on the road.

If you've tried both solutions and your car still doesn't start, it's time to speak with a professional. A certified technician will be able to determine whether your vehicle's computer system requires reprogramming or the fob simply requires an upgrade in battery. They will also suggest a reputable auto shop to replace your fob's keys. In the end, sometimes a brand new fob is the most effective solution.

Circuit Board Damage

A key fob can take many physical abuses and is not indestructible. The battery, circuit board and buttons are all subject to wear and tear. It is essential to take care of these components to ensure that your key fob is in good working order.

The easiest way to test is to make sure the battery in your key fob isn't dead. If it is replaced, check if it fixes your problem. If not, you may require opening the key fob and clean the contact surfaces. This can be tricky since some key fobs don't have a release mechanism that is easy to open them and you could damage your fob if you try to pull it apart. You can purchase a special tool to open your key fob, but you should always adhere to the manufacturer's guidelines to avoid damaging it.

A damaged or damaged key circuit board for the fob is another common problem. This could be due to numerous factors, such as dirt or moisture getting into 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 want to consider having it reprogrammed. This can be done by a locksmith who specializes in this kind of work.

Radio interference is a different possibility. This can happen if there are other wireless devices that transmit at the same frequency as your key fob, for instance radar detectors or home security systems. If this is the case, you should check with the other device manufacturers to make sure that your key fob's signal isn't affected by their signals.

It is also possible to replace a switch or another electrical component inside your key fob. There are online guides that show you how to fix this yourself. It's important to be careful when doing this, though because the circuit boards inside the key fob are tiny and easily break if they are handled roughly. If you do this yourself, be sure to use a good quality SMT switch and then solder it to the correct place.

Worn Out Buttons

Car key fobs are susceptible to a lot wear and tear. They are prone to being dropped and are frequently being tossed around in your pocket or purse. The constant jostling can cause the buttons to wear out or get stuck. When this happens it's possible that a simple adjustment will be all that's needed to get it working again.

Most modern key fobs come with sensors that detect if they've been pressed. They're made to do this to reduce the likelihood of thieves stealing your car. If the buttons on your key fob aren't responding when pushed, that's an indication that they're worn out and require to be replaced.

Key fobs also have a circuit board inside them which transmits signals to your car. These signals include commands to unlock and lock your car, and commands to start your engine. If the circuit board within your vehicle is damaged, your key fob might not be able to unlock or start your engine. Most of the time, this kind of damage is caused by water, blunt force, or something scratching the circuit board.

You'll notice that the buttons on your key fob are wearing down when you press the buttons more than normal in order to get them working. Your fob might also stop sending a signal to your vehicle or have a shorter range.

If you're unable to get your key fob to unlock or start your car, it's important to contact a locksmith in your area immediately. They can tell if the key fob is damaged or the cylinder in your ignition is worn out.

Luckily, most car key fob issues aren't too serious or complex. The best way to ensure you don't get surprised by a malfunctioning key fob is to have an extra key in your possession at all times. This will ensure that you're never trapped in a place because of the loss or malfunction of your key. If you lose your spare key repair shop an expert locksmith can rekey it to work with your car's engine. They'll also be able repair car key fob any internal damage that may have occurred on your key fob.

Broken Case

The case of the key fob is more than protect the buttons and batteries. The case also houses the circuitry that does all the electrical magic when you press the key fob button. This board receives the signal from your key fob and sends it to your car key repair service.

If the board is damaged or dead, your key fob won't be able to operate. A dead key fob might require reprogramming by your local auto locksmith or dealer.

Batteries may be the cause of your key fob not working. This is a quick fix that can be accomplished at home by replacing the battery. You can get an alternative battery at the local auto parts store or on the internet. These batteries aren't only intended for key fobs.

Depending on the kind of key fob you have, there are various ways to open it up and access the insides. A quick internet search should show you which type of key fob yours is and the type of battery it requires. You can then purchase an alternative and take the old one out, and put the new one in.

The main concern when you repair the broken car key fob is that you don't want to cause damage to the circuit board or buttons further. If you attempt to remove the fob using a sharp edge, such as a screwdriver can damage the case or even scratch the plastic. A replacement case isn't expensive and you can buy the entire fob including the electronics on eBay or Amazon for less than $40.

If your key fob does not work, check if you have damaged the circuit board or batteries. If this isn't the situation, you can get it repaired quickly and inexpensively by an expert. If not, it could be time to replace the fob. Be sure to check the warranty of any replacement or used fobs that you purchase online.