Remote Key Fob Repair
Modern vehicles are equipped with a remote key fob that can lock, unlock and start the car. But, like all pieces of modern technology it is not without its own problems.
They are generally easy to repair. You can reset it by following the instructions in the owner's manual.
Check the Battery
The battery inside the key fob powers the remote control function. It's a tiny and affordable part that needs to be replaced regularly to ensure that the fob's function is maintained. However, in addition to the battery, there could be other reasons your fob isn't working. Water exposure, physical damage or internal component malfunction could be the reason. If your key fob is not working, replace the battery.
First, make sure you have the correct size battery. The majority of modern key fobs are powered by a three-volt CR2032, which is easily available in a wide range of stores. The size of many of these batteries is printed on the edge of the key fob. A quick search for the name of your car's brand will help you identify the exact type of battery it takes.
When car key repairs have the correct battery, carefully open the key fob, and then remove the existing battery. Take a photo of the inside of your fob to ensure that you put it back in the correct way. This simple step can help you avoid having to purchase a replacement fob because you made an error while putting it together.
It is also important to know that some key fobs have an additional mechanical key, also known as an emergency blade. The key blade is within the key fob and it allows you to unlock the door of the driver's seat of your car in the event that the remote control is not working. To open the blade of the key, you must locate the notch in the middle of the fob. The notch is typically a circle hidden by the plastic casing of the fob.
If you want to be extra cautious you can use a multimeter to check the voltage of the battery. The majority of modern key fobs have an voltmeter embedded in their casings, but you can also purchase a multimeter for just a few dollars from most hardware stores. The battery should generally be reading 3.0 volts or greater. If it is below that level, it could indicate a battery in its final stages and should be replaced immediately.
Check the Buttons
Car key fobs may seem to be nothing more than modern, high-tech gadgets however, they're not indestructible. Remotes can stop functioning after a period of time, especially when they are used frequently or have been subjected to physical abuse. Fortunately, most of the times it's easy to diagnose and repair a problem with the remote key fob and changing the battery is often all that is required.
Modern car key fobs come with numerous buttons that serve different functions. For example they can lock and unlock the doors and activate the panic button, and open the trunk. When you press a button, the fob sends an audio signal using the code that is interpreted by a receiver in the car. Certain fobs come with a button to start the car, which is especially useful in cold winter mornings and hot summer days.
The buttons on a key fob can be reset by simply snapping it off and ensuring that they are not broken or stuck. Key fobs aren't made to be removed, but the battery connector terminals on a key fob could get loose over time. Soldering can be used to connect the button contacts to the circuit board in case they've been disconnected. This will allow the fob to function again.
If a fob is damaged or dropped, the buttons could be damaged, misaligned, or out of alignment. These kinds of issues are usually more difficult to solve on your own, however, they can be fixed by a local auto shop that has the proper tools and experience.
Keep an extra key fob in an area that is secure in case the one you use most often stops working. This can help keep you from being left without your keys or needing to pay a significant amount of money to have the vehicle towed back to the dealer. Make sure to check your car insurance or car club membership or extended warranty coverage for the cost of replacing the key fob.
Check the Casing
It's not unusual for a keyfob's cap to get wet. This can happen from an in-ground pool, a downpour, or even from your washing machine. The resulting moisture can wreak havoc with the electronics inside, causing numerous malfunctions. The good part is that keys can typically be kept from a cliff by thoroughly drying it out and following a few simple steps.
The first step is to ensure that the buttons are working correctly. This usually involves removing the buttons, cleaning them and rebuilding them. If the buttons don't pop back in or feel stuck, it's time to replace your remote.
Examine the case to ensure that there is nothing blocking the operation of the key fob. Open the case with tweezers and remove the battery. Do not disassemble the antennas or circuit board. If you disturb the circuits that keep your key fob's programming it will be required to visit an Interstate All Battery Center or dealer to reprogram it.
After you have removed and replaced the battery, it's a good idea for you to dry the key fob out by placing it in a plastic bag containing silica gel packets. This will prevent future moisture issues and help the battery last longer.
If, after all this, the fob is still not functioning properly, you'll need to visit a dealer or an independent shop that specializes in your specific type of vehicle. They can reprogramme the key fob to match your vehicle and hopefully restore its full functionality.
If all else fails, an alternative key fob from NAPA can be purchased online or at your local NAPA Auto Parts store. These DIY remotes look as the factory key fob but are much more affordable and are able to be paired with your vehicle by following simple instructions. NAPA provides a variety of do-it yourself replacements that you can re-program in minutes.
Check the Connections
Sometimes, your key fob will just stop working - even though it's still connected to your vehicle. This could be due a variety of reasons, including damaged battery terminal buttons or contacts. If this is the case, you may be capable of fixing it yourself by performing basic maintenance.
The first thing to ensure is that the backup remote you have is able to lock and unlock the doors of your car. If it does, then you may have a problem with your main remote. If you're still having trouble doing it, you can try replacing the batteries in your backup remote.
Before you replace the battery It's recommended to take off your key fob and perform an examination of the circuit board. You'll want to make sure that there aren't any broken solder joints that need to be re-soldering. When you're done, you can replace the battery and reassemble the key fob.
After you have replaced the battery and reassembled the key fob, test the connection to your vehicle. This can be done by inserting a small flathead screwdriver in the notch on the bottom of your key fob. From there, you can take apart the two pieces of your key fob, and gently remove the circuit board. Make sure to insert a brand new CR 2032 3V battery, making sure that it's placed with the negative side facing downwards. Once you've reinserted the circuit board, rebuild the key fob and try again.
If this doesn't work, there is a bigger problem. In this instance, you should call your dealer or a service shop that specializes in your car's make. They can diagnose the issue using a radio-frequency tester, a device which determines if your key fob transmits an electronic signal to the computer in your car.
I hope this guide has been useful for anyone having issues with their vehicle's key fob. Please contact us if you have any questions or concerns. We'll be glad to help you get back on the road in Deptford or Cherry Hill!