Remote Key Fob Repair
Modern vehicles come with remote controls that can be used to lock, unlock, and start the vehicle. Like any other high-tech piece of equipment, there can be issues.
Usually, they are easy to fix. It can be as simple as resetting it, which you should be able to accomplish by following the resetting instructions in the owner's manual.
Check the Battery
The remote control is powered by the battery inside a key fob. It's a small, inexpensive part that needs to be replaced frequently to ensure the fob's functionality. There are many other reasons your key fob may not be functioning, aside from the battery. Physical damage, water exposure or internal component failure could be the cause. Regardless of the cause when your key fob is unresponsive and is not responding, it's time to replace its battery.
First, make sure you have the right size battery. Almost all modern key fobs use a common three-volt CR2032 battery that's easily available at many stores. The size of many of these batteries is printed on the edge of the key fob. You can determine the kind of battery your car requires by searching for the brand name.
The fob must be opened carefully and take out the original battery. Take a photograph of the inside of the fob to ensure you put it back in the correct way. This simple step could save you from having to purchase a replacement fob because you made an error while putting it together.
It is important to be aware that some key fobs have a backup mechanical key, referred to as an emergency blade. This is found inside the key fob and allows you to open the driver's side door in the event that your remote control doesn't work. In order to access the key blade, you'll need to locate the notch located in the middle of the fob. The notch is typically a circular shape that is concealed by the fob's plastic casing.
If you'd like to be extra cautious, you can use a multimeter to check the voltage of the battery. Most modern key fobs come with a voltmeter built into their casings, but you can also purchase a multimeter for a few dollars from most hardware stores. Generally, the battery should read at 3.0 volts or more. If remote key fob repair reads lower than that, it could indicate that the battery is on its last legs and requires replacement immediately.
Check the Buttons
Key fobs for cars may appear like nothing more than fancy high-tech items for convenience however, they're not indestructible. These remote devices can stop working after some time, especially when they are used frequently or were subjected to physical abuse. Fortunately, the majority of times it's easy to identify and fix a problem with a remote key fob, and replacing the battery is often all that's required.
Many modern-day car keys have several buttons that can be used for various purposes like locking and unlocking the doors as well as activating the panic button and opening the trunk. When the button is pressed the fob sends out a radio signal with the code that is interpreted by a receiver located inside the car. Some fobs also have a button that can start the engine, which can be especially handy during cold winter mornings or hot summer days.
Typically, the buttons on keys can be reset by simply snapping the device apart and then checking to ensure they're not broken or stuck. The battery connector terminals on a key fob could be loose over time, even though they are not designed to be removed. Soldering is a way to reconnect the button contacts to the circuit board in case they have been disconnected. This will bring back the fob's functionality.
If a fob is damaged or dropped, the buttons might be damaged, misaligned, or out of alignment. These issues are more difficult to fix on your own. However an auto repair shop in your area can fix them with the right equipment and expertise.
It's always recommended to keep an extra key somewhere in case one of the ones you use regularly stops working. You'll avoid being stuck in the middle of nowhere without your keys, or having to pay a lot to have the car transported to the dealer. Check your car insurance or car club membership or extended warranty coverage for the cost of replacing a replacement key fob.
Check the Casing
It's not unusual for keys to get wet, be it from a pool, storm or even your washing machine. The resulting moisture can cause a range of issues with the electronic components. The good thing is that a key fob can often be saved from the brink of death by drying it thoroughly and following a few easy steps.
First, verify whether the buttons are working properly. This usually involves removing, cleaning and reassembling the buttons. If the buttons aren't working or don't appear to be able to open, it could be time to replace your remote.
It is also important to inspect the case to make sure there is nothing that could be affecting the operation of the key fob. Open the case with tweezers and remove the battery. Don't disassemble the circuit board or antennas. They have electric current flowing through them that keeps the key fob's programming to your car, and if you disturb those circuits, you'll need to go to a dealer or choose an Interstate All Battery Center location to re-program the device.
After you've removed and replaced your battery, it's recommended to dry the key fob by putting it in an airtight bag that contains silica gel packets. This will help prevent future problems with moisture and make your key fob more robust.
If, after all this, the fob isn't functioning properly, you'll have to visit a dealer or an independent shop that specializes in your particular model and make of vehicle. They can re-program the fob's key to your vehicle, and hopefully restore the function to its original state.
If nothing else works, you can purchase an alternative keyfob online or in your local NAPA Auto Parts shop. These do-it yourself remotes function just like the factory key fob, but cheaper. They are easily paired to your vehicle by following simple instructions. If you're looking to avoid the expense and hassle of a dealership visit, NAPA offers several do-it-yourself replacements that can be re-programmed within a matter of minutes at home.
Check the Connections
Sometimes your key fob might just stop working - even though it's still connected to your vehicle. This could be due to many factors that include malfunctioning battery contacts or buttons. If this is the case, you might be in a position to fix it yourself by carrying out some basic maintenance.
You should first check whether your backup remote is capable of locking and unlocking the doors of your vehicle. If it can, then you probably have an issue with your primary remote. If you are still unable to do it, you can try replacing the batteries in your backup remote.
Before you replace the battery it's a good idea to pull off your key fob and perform a visual examination of the circuit board. You'll want to ensure that there aren't any broken solder joints that need to be re-soldering. After you're finished replacing your key fob battery and put it back together.
After you have replaced the battery and reassembled the key fob, you should test its connection to your vehicle. This can be done by inserting a small flathead screwdriver into the notch at the bottom of your key fob. Then, you can break the two halves of your key fob and then gently remove the circuit board. Insert a new CR2032 battery with the negative end facing downwards. After you've inserted the circuit board, put it back together and try again.
If this doesn't work, you have a bigger issue. If this is the case, contact your dealer or a service shop that is specialized in the car's model. They can pinpoint the issue by using a radio frequency tester that is a device that can determine if your key fob is sending signals to your car's computer.
This guide is intended to be of assistance to anyone having problems with their car key fob. If you have any other questions or concerns, don't hesitate reach us for assistance. We'll be glad to help you get back on the road in Deptford or Cherry Hill!