How to Repair Car Key Fobs
Even though we put them through a lot keys are not impervious to destruction. They can actually be destroyed in a variety of ways.
Other issues can be more serious than a dead battery. Fortunately, the majority of these can be fixed by a simple DIY fix at home.
Dead Battery
A dead battery is likely the most common reason the car key fob stop working. Fob batteries are known to drain quickly, especially when they are exposed or cold temperatures, humidity or even water. It is a good idea to keep an additional fob battery in your wallet in case.
You will usually know that the battery in your car key fob is running low because the light on the LED will stop glowing. It is also possible that the fob won't work from the same distance as it used to. In this scenario, the key fob may need to be programmed again or replaced completely.
It is easy to replace the battery in a car keyfob. First, determine what kind of battery is being used. The type of battery you are using should be embossed in the side of your key fob. Google can help you in case you're unsure. Once you have found the battery type and the key fob, you can open it at the junction. Make use of a flathead screwdriver or even your fingernail to pry apart the two halves. Remove the old battery and replace it with a new one. Make sure you insert the new battery with the positive (+) side facing up toward the buttons on the fob.
Some drivers don't even realize that their fob has gone out of service until they lock or unlock their car and the buttons don't work anymore. In some cases 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 can start your car and get it back on the road.
If you have tried all three of these methods and your car still won't start, then it's time to contact an expert. A trained technician will be able to determine whether your car's computer system needs reprogramming or if the fob needs a new battery. They can also recommend a reliable auto shop to replace your fob's key. In the end, though sometimes, a brand new fob is the most effective solution.
Circuit Board Damage
The key fob isn't impervious to destruction, but it can be able to withstand a variety of physical harm. The battery, circuit board and buttons are all susceptible to wear and wear and tear. It is essential to take care of these parts to ensure your key fob remains in good working order.
Make sure that the battery still working on your key fob. If it is replaced, see if that fixes your issue. If not, you'll need to open the key fob and clean the contact surfaces. This can be a challenge since some key fobs don't have easy-release mechanisms to open them and you could harm your device if you try to force it apart. You can buy a special tool to open your key fob, however you should always follow the manufacturer's instructions to avoid damaging it.
A damaged or defective key circuit board for the fob is another common problem. This can be caused by various factors, including dirt or moisture entering the battery compartment. Software issues or even an accident firmware update could also cause this. If your key fob isn't working completely, consider having it reprogrammed by locksmiths who specialize in this type of work.
Radio interference is another possible cause. This can occur when you have other wireless devices that transmit at the same frequency, for example, radar detectors or home security systems. If this is the case, consult with other device manufacturers to ensure that your key fob isn't affected by their signals.
There may be a need to replace a switch or other electrical component of your key fob. You can find online guides that guide you through the process of fixing this yourself. It is important to be cautious when doing this because the circuit boards that are inside the key fob are tiny and can break easily in the event of rough handling. If you're doing it yourself, be sure to make use of an SMT switch of good quality and then solder the switch into place in a proper manner.
Out Buttons Out Buttons
Car key fobs are prone to lots of wear and tear. They're susceptible to being dropped and often spend a lot of time moving around in your pocket or purse. Sometimes, this can cause the buttons to wear out or snagged. In this case an easy adjustment could be all it takes to get it working again.
Modern key fobs come with sensors that can detect when they have been hit. This is because they reduce the chances of someone stealing your vehicle. If the buttons on your key fob aren't responding when you press them this is a sign that they're worn out and require to be replaced.
The circuit board that is in the key fob also transmits signals to your car. These signals include commands to unlock and lock your car, as well commands to start your engine. If the internal circuit board is damaged, your key fob will not unlock or start your engine. Generally, this kind of damage is caused by water, blunt force or a scratch on the circuit board.
If you have to press the buttons harder than usual in order to activate them the key fob buttons are getting worn out. The fob may not be sending a signal to your car or have a lower range.
Contact a locksmith immediately when you're unable to use your key fob to access your car. They can determine if the key fob is damaged or if the cylinder in your ignition is worn out.
Fortunately, the majority of key fob issues in cars aren't serious or complicated. Keep a spare key fob in your vehicle always in case you end up being surprised by a malfunctioning one. You won't be left stranded due to 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 the key fob.
Broken Case
The case of the key fob is more than just shield the batteries and buttons. It also houses the circuit board responsible for performing all the electrical magic when you hit a button on your key fob. The circuit board relays the signal from your keyfob to your car.
If go here is damaged or dead the key fob won't be able to function. A key fob that is dead may only need to be reprogrammed by your local auto locksmith, or dealership.
Another reason your key fob may not be working is that the batteries are not working. The battery can be replaced at home. You can get the replacement battery from the local auto parts store or online. These batteries are not just for key fobs.
Depending on the kind of key fob you have, there are various ways to open it and gain access to the inside. A quick search online should identify the type of key fob you have 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 into.
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 any further. If you attempt to remove the fob using a sharp edge, such as a screwdriver can damage the case or even crack the plastic. Fortunately, a replacement case isn't expensive and you can get a whole fob assembly with the electronics on eBay or Amazon for less than $40.
If your key fob doesn'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. If not, it could be the time to purchase an upgrade. Be sure to check the warranty on any replacement or used fobs purchased online.