Key Fob Repair: A Simple Definition
Remote Key Fob Repair
The majority of modern cars now have a remote key fob that can be used to lock, unlock and start the car. As with any high-tech piece equipment, there are problems.
These are usually very easy to fix. You can reset it by following the steps in the owner's manual.
Check the Battery
The battery inside the key fob powers the remote control function. It's a small, inexpensive part that should be replaced on a regular basis to ensure the fob's functionality. There are a variety of reasons your key fob may not be functioning properly, besides the battery. Water exposure, physical damage or internal component failure could be the reason. Regardless of the cause the key fob isn't responding and is not responding, it's time to replace its battery.
Make sure you have the right size battery. Most modern key fobs are powered by a CR2032 three-volt battery which is easily found in a wide range of stores. The size of many of these batteries is engraved on the edges of the key fob. You can identify the type of battery your vehicle requires by searching for the brand name.
When you have the correct battery, carefully open your key fob and take out its existing battery. Photograph the inside of the fob prior to you do this to ensure that you put it back together in the correct way. This simple step will save you from purchasing another fob if you made a mistake when putting it back together.
It is also important to know that certain key fobs come with a backup mechanical key, referred to as an emergency blade. This is found inside the fob's key and allows you to open your car's driver's side door in the event that the remote control isn't working. 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 circle that's hidden by the fob's plastic casing.
If you're looking to test the battery's voltage with extra caution, you can use the multimeter. Most modern key fobs come with an voltmeter in their casings, but you can also get a multimeter for just a few dollars at most hardware stores. Generally, the battery should read at 3.0 volts or greater. A reading that is lower than this could mean that the battery is on its last legs and needs to be replaced immediately.
Check the Buttons
They may appear to be modern, high-tech items of convenience, but keys for cars aren't impervious to destruction. Remotes can stop functioning after a period of time, particularly when they are frequently used or have been exposed to physical abuse. Fortunately, most of the times, it's simple to diagnose and fix the issue with the remote key fob and changing the battery is typically all that's needed.
Modern car key fobs include multiple buttons that perform different functions. For example they can lock and unlock the doors and activate the panic button, and open the trunk. When a button on the fob is hit, it sends a radio signal to a receiver inside the vehicle. Some fobs also have a button that can start the engine, which can be especially useful on cold winter mornings or hot summer days.
Typically, the buttons on a key fob can be reset by snapping the device apart and ensuring they're not damaged or stuck. The battery connector terminals of a key fob could become loose over time, despite the fact that they aren't intended to be removed. Soldering is a way 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 gets damaged or dropped, the buttons could be broken, misaligned, or out of alignment. These types of problems are generally more difficult to solve on your own, but can usually be addressed by an auto repair shop in your area with the right equipment and experience.
It's always recommended to keep a spare fob somewhere in case one of the ones that you frequently use fails to function. This will to avoid being stuck without your keys or needing to pay a significant amount of money to have the vehicle towed back to the dealer. Check your car insurance, car club membership, or extended warranty coverage to determine the cost of replacing a new key fob.
Check the Casing
It's not uncommon for keys to get submerged, whether from a pool, storm or even your washing machine. The moisture that is resulting can cause a variety of malfunctions within the electronics. It's a good idea to know that you can save your key fob from dying by following a few easy steps and thoroughly drying it.
First, make sure whether the buttons function properly. This usually involves removing the buttons, cleaning them, and rebuilding them. If the buttons don't click back in or are stuck, it's time to replace your remote.
Examine the case to ensure that there isn't any obstruction to the operation of the key fob. Remove simply click the next document using tweezers, and then remove the battery. Don't remove the antennas or circuit board. If you disturb the circuits that keep your key fob's programmed it will be required to visit an Interstate All Battery Center or dealer to reprogram it.
After you've replaced and removed the battery it's an ideal idea to dry the fob by placing it in a plastic bag containing silica gel packets or some other desiccating agent. This will prevent future issues with moisture and will help the battery last longer.
If, after all this, the fob is still not functioning properly, you'll have to visit a dealership or an independent shop that specializes in your specific model and make of vehicle. They can reprogram the key fob for your vehicle and hopefully restore it to full functionality.
If nothing else works, you can purchase a replacement keyfob online or in your local NAPA Auto Parts shop. These DIY remotes are just like the original fob, but are more affordable. They are easily paired to your vehicle by following simple instructions. If you'd like to avoid the cost and hassle of a dealership visit, NAPA offers several do-it-yourself replacements that can be reprogrammed in minutes at home.
Check the Connections
Your key fob may cease to function even though it's programmed to work for your vehicle. It could be due to a variety of reasons, including broken battery terminal buttons or contacts. It is possible to solve the issue yourself by performing some basic maintenance.
The first thing to ensure is that your backup remote is able to lock and unlock the doors of your car. If it can't then there could be issues with your primary remote. If you are still unable to do it, try replacing the batteries in the backup remote.
Before replacing the battery, it's a good idea to pull apart your key fob and conduct a visual examination of the circuit board. Check for cracked solder joints. After you're finished, you can replace the battery on your key fob and reassemble it.
After you have replaced the battery and reassembled the key fob, make sure you 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'll be able to take apart the two halves of your key fob, and gently remove the circuit board. Carefully insert a new CR 2032 3V battery, ensuring that it is placed with the negative side facing down. After you have reinserted the board you can put it back together. key fob.
If this doesn't work, you have a bigger issue. In this instance, you should call your dealer or a service shop that specializes in your car's make. They can diagnose the problem with a radio frequency test that is a device that can determine if your key fob is sending signals to the car's computer.
This guide is intended to be of assistance to anyone who is having issues with their car key fob. Contact us if have any questions or concerns. We'll be glad to help you get back on the road in Deptford or Cherry Hill!