How to Repair Car Key Fobs
Although we test them many a times, key fobs are not indestructible. In fact, they are able to break down in many different ways.
While the most common problem is a dead battery but other issues can be much more serious. Many of problems can be fixed with a quick fix at home.
Dead Battery
A dead battery is likely the most common reason why the car key fob stops functioning. Fob batteries are prone to draining quickly, especially when they're exposed to extreme temperatures, humidity or water. It's a good idea to keep an extra battery in your wallet just in case.
The LED light will generally cease to blink when the battery in the car key fob is running low. It's also possible that the fob won't work from the same distance as it used to. In this scenario the key fob could need to be programmed again or replaced entirely.
Fortunately replacing the battery in a car key fob is simple. First, determine what kind of battery is used. The type of battery should be engraved on the back of the fob. Google can assist you if you're not sure. Open the key fob along the seam after you have identified the battery type. You'll need an small screwdriver with a flat head or your fingernail to split the two halves. Take the old battery out, and replace it with a new one. Make sure to insert the new battery with the positive (+) side facing up toward the buttons on the fob.
Some drivers may not realize their fob is dead until they attempt to lock or unlock their vehicle and the buttons aren't responding. In some cases this problem can be resolved by reprogramming the fob, however, this can be expensive 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 every solution and your vehicle still won't turn on, it's time to contact a professional. A certified technician will be able to determine whether your car's computer system needs to be reprogrammed or if the fob needs an upgrade in battery. They will also suggest a reputable auto repair shop to replace your fob's keys. Sometimes it is possible that a new fob may be the best option.
Damaged Circuit Board
Key fobs can withstand a lot of physical abuse and is not impervious to destruction. The battery, circuit board and buttons will all experience their fair amount of wear and tear over time and it's crucial to be on guard and take care of them to keep your car key fob operating well.
The most straightforward thing to do is to make sure the battery in your key fob isn't depleted. Replace the battery to see if it fixes your problem. If this does not work, you might need to open the fob and clean its contact surfaces. It isn't easy to open some key fobs since they do not have an easy-release mechanism. You may harm the fob by trying to force it apart. You can purchase a special tool to open your key fob. But, you must follow the directions of the manufacturer to avoid damaging it.
A damaged or defective key fob circuit board is another frequent issue. It can be caused by many things like dirt or moisture that gets into the battery compartment software problems, or even an accidental firmware update. If your key fob isn't functioning, you might be interested in having it replaced. This can be done by a locksmith that specializes in this kind of work.
Radio interference is also a possibility. This could happen if there are other wireless devices that transmit on the same frequency your key fob, such radar detectors, home security systems. If this is the situation you must get in touch with the manufacturer of the other device to ensure that your key fob won't be affected by their signals.
It's also possible that your key fob may have an issue with the switch or another electrical component that should be replaced. This is a more difficult fix however, there are guides online that explain how to fix it yourself. It is important to be cautious when doing this, though it is important to be careful, since the circuit boards that are inside the key fob are tiny and easily break when handled rough. If you're doing this yourself, make certain to use a top quality SMT switch and then solder it in place correctly.
Buttons that are worn out
Car key fobs can get lots of wear and wear and tear. They're prone to being dropped and are frequently being tossed around in your purse or pocket. The jolting can cause the buttons to wear out or get stuck. If this happens it's possible that a simple adjustment will be all it takes to make it work again.
Modern key fobs come with sensors that are able to detect when they've been hit. This is because they reduce the chances of someone stealing your vehicle. If your key fob's buttons don't respond when pushed this is a sign that they're worn out and need to be replaced.
Key fobs also have an electronic circuit inside that transmits signals to the car. electronic car key repair near me include unlock and lock commands and commands to start your engine. If the circuit board inside is damaged, your key fob will not unlock or start your engine. Most of the time, this kind of damage is caused by water, force blunt or something that scratches the circuit board.
You'll be able to tell that the buttons on your key fob are wearing out if you find yourself pressing them harder than usual to get them to work. Your fob could not be sending signals to your vehicle or have a shorter range.
Contact a locksmith right away if you are not able to use the key fob for your car. They'll be able to determine whether the key fob is damaged or your ignition cylinder is worn out.
Luckily, most key fob issues in cars aren't serious or complicated. The best way to ensure you don't get caught off guard by an unresponsive key fob is to keep a spare in your possession at all times. This will ensure that you're not left stranded somewhere because of the loss or malfunction of your key. If you do lose your car key spare, a locksmith will be able to change the key to work with the ignition in your car. They'll also be able to fix any internal damage that may have been caused to the key fob.
Broken Case
A key fob's case provides more than just protection for the buttons and battery. The case also houses the circuitry that executes all the electrical magic whenever you press the button on your key fob. The board transmits the signal from your key fob to your car.
Your key fob won't function if the board is damaged. Sometimes, a dead key fob can be reset which is something your local auto locksmith or the dealership can assist you with.
Batteries may be the cause the key fob's not working. The battery can be replaced at home. The good thing is that you can get a replacement battery online or at your local auto parts store, since the batteries aren't limited to key fobs.
Depending on the type of key fob, there are various ways to open it up and get inside. A quick internet search should show you which type of key fob yours is and the type of battery it requires. You can then buy an alternative and take the old one out and then insert the new one in.
The biggest concern when repairing a broken car key fob is that you don't want to cause damage to the circuit board or buttons further. If you attempt to pull apart the key fob using the screwdriver or another sharp edge, it could crack the plastic or break the case. A replacement case is inexpensive and you can purchase the entire fob including the electronic components on eBay or Amazon for under $40.
If your key fob doesn't function, make sure you have damaged the circuit board or the batteries. If this isn't the case, a professional will repair it for you quickly and inexpensively. If not, it might be time to replace the fob. Just be sure to check for a warranty on any used or replacement fobs that you purchase on the internet.