How to Repair Car Key Fobs
Even though we test them a lot, key fobs are not impervious to destruction. They can actually break down in different ways.
Other issues can be more important than a dead battery. Most of these issues can be resolved with a simple fix at home.
Dead Battery
A dead battery is the main cause of a key fob that is not working. Fob batteries are known to drain quickly, particularly if they are exposed or humid temperatures or even water. It's a good idea keep an extra fob battery in your wallet just in case.
You can usually tell that the battery in your car key fob is depleted because the light on the LED will stop glowing. It is also possible that the fob will no longer work from the same distance as it did in the past. In this case, it may be necessary to reprogram the key fob or even replace it entirely.
It is easy to replace the car keyfob battery. First, you need to determine the type of battery is used. The type of battery you are using should be embossed in the side of your key fob. Google can help in case you're unsure. Once you've found the kind of battery you want and the key fob, you can open it near the seam. Make use of a flathead screwdriver or even your fingernail to separate the two halves. Take the old battery out, and replace it with a new one. Insert the new battery so that the positive (+) face is facing the buttons on the fob.
Some drivers may not be aware the fob is dead until they attempt to lock or unlock their vehicle and the buttons don't respond. In some instances, this can be solved by reprogramming your fob, but that can be costly and time-consuming. Another option is to contact roadside assistance and see if they are able to jump your vehicle and get you back on the road.
If you've tried all the options and your vehicle still won't turn on, it's time to contact a professional. A trained technician can determine whether your vehicle's computer system requires reprogramming or if the fob needs an upgrade in battery. They will also suggest a reputable auto repair shop to replace your fob's keys. In the end it is not always the case that a new fob is the best 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 circuit board, battery and buttons are all subject to wear and tear. It is important to take care of these parts to ensure that your key fob is in good working order.
The easiest way to test is to make sure the battery in the key fob isn't dying. Replace the battery to determine if it resolves your problem. If this doesn't work, you may need to open the fob and clean its contact surfaces. It is sometimes difficult to open certain key fobs because they don't 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. But, you must always follow the instructions of the manufacturer to avoid damaging it.
Another common problem is a damaged or faulty circuit board on the key fob. This can be caused by various factors, including dirt or moisture getting into the battery compartment. Issues with software or an accident firmware update could be the cause for this. If your key fob has stopped functioning, you might want to consider getting it changed. This can be accomplished by a locksmith that specializes in this work.
Radio interference is another possibility. This could happen if you have other wireless devices around that transmit at the same frequency, like radar detectors or home security systems. If this is the case you need to get in touch with the manufacturer of the other device to make sure that your key fob will not be affected by their signals.
It's also possible that your key fob has an issue with the switch or another electrical component that needs to be replaced. This is a harder fix however, there are online guides that will show you how to do it yourself. You should be careful to be careful, however, since the circuit board in your key fob is small and could easily break when handled rough. If you're doing this yourself, be certain to use a top quality SMT switch and then solder it in place correctly.
Out Buttons Out Buttons
Car key fobs are susceptible to a lot wear and tear. They are prone to being dropped and often spend a lot of time jostled around in your pocket or purse. The constant jostling can cause buttons to wear out or become stuck. In this case, a simple adjustment may be all that's needed to make it work again.
Most modern key fobs have sensors on them that can detect if they've been pressed. This is because they lower the chance of someone else stealing your vehicle. If the buttons on your key fob don't respond when pushed it's a sign that they're worn-out and need to be replaced.
The circuit board that is in the key fob also transmits signals to your car. These signals include unlock and lock commands and also instructions to start your engine. If your internal circuit board is damaged, then your key fob may not be able to unlock your vehicle or start the engine. This kind of damage is usually caused by blunt force or water.
If you have to press the buttons more than normal to activate them the key fob buttons are becoming worn out. Additionally i was reading this might stop sending a signal to the car or have a lower range than it did before.
Contact a locksmith immediately if you are not able to use the key fob for your vehicle. They can determine if your key fob is damaged, or if the cylinder of your ignition is worn out.
Fortunately, the majority of car keyfob problems aren't complicated or serious. The best way to avoid being surprised by a malfunctioning key fob is to have a spare in your possession at all times. You'll never be caught in the middle due to an unresponsive or lost key. If you do lose your spare car key, a locksmith can help rekey it so that it works with your car's ignition. They'll also be able to repair any internal damage that's been caused 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 whenever you press a key fob button. The circuit board relays the signal from your keyfob to your car.
The key fob won't work if this board is damaged. Sometimes, a dead key fob may need to be reset which is something that your local auto locksmith or the dealership can assist you with.
Batteries could be the reason the key fob's not working. The battery can be replaced at home. You can get the replacement battery from your local auto parts shop or online. These batteries aren't only for key fobs.
There are several ways to open a key fob to get inside it, based on the type. You can determine what type of battery your key fob uses by conducting a quick online search. From there, you can buy a replacement and easily pop the old one out and the new one in.
The biggest concern when repairing the broken car key fob is that you don't want to damage the circuit board or buttons any further. Trying to pry apart the key fob using an edge that is sharp like a screwdriver could break the case or damage 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 function, make sure you have damaged the circuit board or the batteries. If this is not the situation, you can get it repaired quickly and easily by an expert. If not, it may be time to replace the fob. Just be sure to check for a warranty on any replacement or used fobs you buy online.