Remote Key Fob Repair
Most modern vehicles now feature remote keys that can lock, unlock and start the car. Like any other high-tech piece of equipment, there could be problems.
These are usually very easy to fix. You can reset it by following the directions in your owner’s manual.
Check the Battery
The remote control is powered by the battery inside a key fob. It's a tiny and affordable part that should be replaced frequently to ensure the fob's functionality. But, aside from the battery, there are other reasons your key fob might not be functioning properly. Physical damage, water exposure or internal component failure could be the cause. Regardless of the cause the key fob is unresponsive, it's time for a replacement battery.
First, ensure you have the correct size battery. The majority of modern key fobs are powered by a CR2032 three-volt battery that is readily available in many stores. The majority of these batteries are stamped with the size on one of the fob's edges. A quick search for the name of your car's brand should help you find the specific type of battery you need.
Take your key fob apart carefully and take out the original battery. Take keys repair of the inside of the fob before you do this to make sure you put everything back together in the correct way. This simple step can save you from having to purchase an entirely new fob if you made an error when making it back together.
It is important to be aware that some key fobs have an additional mechanical key, called an emergency blade. This is located within the key fob and allows you to access your car's driver's door in the event that the remote control doesn't work. To access the blade of the key, locate the notch in the middle of your fob. The notch is usually an oval shape that is hidden by the fob's plastic casing.
If you'd like to be extra vigilant, you can make use of a multimeter to test the voltage of the battery. Most modern key fobs come with an voltmeter embedded in their casings, however you can also get a multimeter for a few dollars at most hardware stores. In general the battery should read 3.0 Volts or higher. If it is below that level, it could indicate that the battery is in its final stages and should be replaced immediately.
Check the Buttons
They may appear to be high-tech, fancy convenience items but car key fobs are not indestructible. Remotes can stop functioning after a certain period of time, particularly when they are frequently used or if they have been subjected to physical abuse. Fortunately, the majority of time it can be easy to identify and repair a problem with a remote key fob, and changing the battery is often all that's required.
Modern car key fobs have multiple buttons that perform different functions. For example they can unlock and lock the doors and activate the panic button and even open the trunk. When a button is pressed, the fob sends an audio signal using an identification code that can be recognized by a receiver in the car. Some fobs also have a button that can start the engine, which can be especially useful in cold winter mornings and hot summer days.
The buttons on a key fob reset by simply snapping it apart and checking whether they're not damaged or stuck. Key fobs aren't typically designed to be disassembled, but the battery connector terminals on a key fob could get loose as time passes. If the buttons' contacts are disconnected from the circuit board, a simple solder job can be enough to get them back into place and allow the fob back to full functionality.
If a fob is damaged or dropped, the buttons might be damaged, misaligned, or out of alignment. These types of problems are usually more difficult to fix on your own, but can usually be addressed by a local auto shop that has the right equipment and experience.
It's always an excellent idea to have a spare fob somewhere in case one you regularly use stops working. You'll avoid being stuck in the middle of nowhere without your keys, or paying an enormous amount to have the car transported to the dealer. Make sure to check your car insurance or car club membership or extended warranty coverage to determine the cost of replacing a replacement key fob.
Check the Casing
It's not unusual for a keyfob to get wet. This can happen from a swimming pool, a downpour or even from your washing machine. The resultant moisture can cause havoc with the electronic components inside, causing a host of malfunctions. The good news is that the key fob can usually be kept from death's edge by drying out thoroughly and following a few easy steps.
The first step is to check the buttons are still functioning correctly. This usually involves removing the buttons, cleaning them and rebuilding them. If the buttons aren't working or don't come in, it might be time to replace your remote.
Examine the case to make sure that there isn't any obstruction to the operation of the key fob. Open the case with tweezers and remove the battery. Don't disassemble the circuit board or antennas. If you disturb the circuits that keep your key fob's programmed you'll need to visit an Interstate All Battery Center or dealer to reprogram it.
After you've removed and replaced the battery it's an ideal idea to dry out the fob by putting it in a plastic bag with silica gel or other desiccating agent. This will avoid future moisture problems and will make your key fob more durable.
If the fob doesn't work, you can visit a dealership or an independent shop that specializes in the model and make of your vehicle. They can reprogramme the key fob for your specific vehicle and hopefully restore its full functionality.
If you're not able to find a replacement key fob from NAPA can be purchased on the internet or at a local NAPA Auto Parts store. These do-it yourself remotes are similar to the factory key fob, but more affordable. They can be easily connected to your vehicle with simple instructions. NAPA provides a variety of do-it-yourself replacements that can be programmed within a matter of minutes.
Check the Connections
Your key fob may cease to function even though it's programmed for your vehicle. This could be due to a number of factors that include malfunctioning battery contacts or buttons. You may be able fix the issue yourself by performing a simple maintenance.
The first thing you have to do is make sure that your backup remote can lock and unlock your car's doors. If it can't then there could be an issue with your primary remote. If you are still unable to do it, try replacing the batteries in the backup remote.
Before you replace the battery it's a good idea to pull apart your key fob and do an inspection of the circuit board. You'll need to ensure that there aren't any cracked solder joints that need to be replaced with solder. When you're done, you can replace the battery and put back together the key fob.
After you have replaced the battery and reassembled the key fob, you should test the connection to your vehicle. This can be done by inserting a small flathead screwdriver into the notch at the bottom of your key fob. You can then break the two halves of your key fob and gently remove the circuitboard. Be careful when inserting a new CR 2032 3V battery, making sure that it's inserted with the negative side facing downwards. After you have reinserted your board and reassembled your key fob.
If this does not resolve the issue, you could have a more serious issue. In this situation you'll need to either call your dealer or an independent service shop that is specialized in the model of your vehicle. They can determine the problem using a radio-frequency tester, a device which determines whether your key fob sends an electronic signal to the computer in your car.
This guide should be helpful for anyone who has issues with their car key fob. Contact us if you have any questions or concerns. We'll be happy to help you get back on the road again in Deptford or Cherry Hill.