Remote Key Fob Repairs
If your remote key fob has stopped functioning, the first thing to do is check the battery. This is typically the reason of your car not responding to its commands.
If the problem persists, it may be due to a different issue. Fortunately, a lot of these issues can be resolved with a few simple steps.
Check the Battery
The key fob can perform many functions. They can lock and unlock your vehicle remotely and turn on the interior lighting and even start the engine by pressing a button. If you notice that your key fob doesn't respond the same way as it did too, or you have to walk closer to your vehicle to lock or unlock it, the battery of your remote may require replacement.
Most key fobs are powered by an ordinary watch battery, which is usually the CR2032 coin cell. These can be purchased at most hardware and grocery stores and even at some gas stations. The inside of the fobs could vary so check your owner's guide to see what kind of battery is required. It is also advisable to keep a spare key fob on hand because you never know when it will be lost or broken.
A remote key fob works by transmitting a radio frequency (RF) signal to the receiver inside your vehicle. When you press the button on the key fob it transmits a unique signal that is compatible with preprogrammed codes in your vehicle's computer system. The car's receiver is then able to verify the signal and then opens or closes the doors accordingly. If your key fob is not working, it may need replacement batteries or the codes need to be reset.
While you wait for a new battery you can take a few steps to make your device work better. For example, many automobiles come with a feature that allows you to disable your key fob's key-chain alarm by pressing the lock or panic button on your fob for 10 seconds, reports Consumer Reports. This is a straightforward trick that can protect your key-fob from being activated accidentally in public. It's also a great way to keep your vehicle and yourself safe from unwanted burglaries.
You can determine the battery's voltage with the multimeter. Place the probes on both the negative and positive sides of the battery, which should be labeled with the letter P or N, respectively. A reading that is lower than 3.0 volts may indicate that the battery is in need of replacement.
Check the Buttons
If your car key fob isn't responding when you press the buttons, that could be a sign the key fob is in need of be replaced. The buttons on a fob carry out an array of commands that transmit a coded signal to your vehicle's receiver, and it's not uncommon for these to wear out over time.
If you are having trouble with an issue with a dead remote, the first thing to do is to replace the battery. If the new battery does not solve your issue then you should call a mobile locksmith near Apache Junction and see if they can reset your remote to factory settings. This process usually involves inserting the key into the ignition, then pulling it out several times in an hour and then pressing one of the unlock or lock buttons on your fob. Once you've completed the procedure you will hear the sound of a chime.
Your key fob might be worn out, even if the battery is still functioning. The contacts in the device are made of rubber, but they are coated with a conductive electrically charged film that wears off in the course of usage and exposure to humidity. This can be fixed using a piece of metallic tape and punch.
A remote key fob is packed with many useful buttons, allowing you to shut and open the doors of your vehicle as well as lock the trunk and start the car. Many cars also have a button that folds in the wing mirrors. This is a major benefit for drivers who frequently visit shopping malls and crowded parking spaces. Many people don't realize that the fob can be used to switch on the heating or air conditioning before they get into their car on a cold winter day or to cool it down during the hottest summer day.
In the majority of cases the key fob is only re-usable by a dealer. This is because preparing an exchange requires the type of technology and security expertise that only a dealer can provide. If you have a service contract or extended warranty on your vehicle, this may cover the cost of replacing a fob.
Check the Connections
A remote key fob (also known as car key remote, remote control keys or smart keys) is a wireless device that allows you to lock and unlock your car without needing to physically insert a key made of metal. They usually use radio frequency (RF) technology to communicate with the car's receiver, which verifies and processes the signal received. They can be a fantastic safety and convenience enhancement however, sometimes they stop functioning after replacing the battery.
Key fobs are susceptible to damage caused by force, water and scratches on the circuit board. The buttons that are made of rubber may wear out and cause problems since they are used to open doors and start the engine. This weakness has been used by thieves to take cars and gain entry to homes. The key fob needs to be functioning in a secure manner to protect your home.
If your key fob doesn't function as expected it is possible to start by trying to lock and unlock the vehicle using the backup remote. If it works, then the issue is likely with your primary remote. If it doesn't then you can remove the remote to check the internal contacts or buttons for signs of physical issues.
If you take off the remote, look for any identifying marks or logos on the exterior. Some car brands have distinctive logos on the back or a model-specific number. This will help you identify the right replacement.
Next find the receiver module, which is often found under the dash or near the ignition on older vehicles. Check for obvious physical damage and make sure that the contacts are in good condition. You can try moving the key fob, or disconnecting power for a short time to reset it.
If the receiver module doesn't work it's likely time to replace it. If you need parts or services contact the manufacturer. You can also try reprogramming a new module so that it is compatible to the keyfob. This is a safe and simple procedure, however it requires access to the car's computer system using the right scan tool.
Reprogram

A remote key fob, also referred to as a remote controller, is a small, electronic device that lets you control your car's trunk security system, alarm system, and locks from the distance. Fobs can be purchased as replacements for your existing metal key or upgrade to a smart or proximity fob with additional features. In contrast to traditional keys made of metal, fobs aren't cut or copied by a thief to gain access to your vehicle. These devices can become inoperable over time, due to battery problems or other reasons. remote key repairs is possible to repair remotes rather than replacing them.
Replacing the car's key fob typically requires updating the unit's programming to match the security system of your vehicle. This is a complicated task which can be more expensive in the event that it is performed by an auto locksmith or a dealer. Fobs can also be offered as aftermarket or OEM products, with OEM (Original Equipment Manufacturer) options typically priced higher than aftermarket versions.
When replacing the fob on your key it is an excellent idea to refer to the owner manual or search online for specific instructions for your vehicle model. Different manufacturers may have varying instructions to follow when programming a fob and this will help you avoid any unnecessary costs.
To reset your fob simply open the driver's door and use the unlock key. The door should lock within a few seconds, indicating that your car is in the mode of remote programming. If this does not happen then you'll need to begin the process over again.
Once you've ejected the metal ignition key from your fob and you're ready to use a flathead screwdriver or another tool to open the fob to access the circuit board within. It's important to be careful and be patient to avoid damaging the circuitry or the housing. Once you've accessed the board, you'll be in a position to take out the old battery and install a new one.
After you've reprogrammed your fob, it's a good idea to test it by locking and unlocking the doors and switching on the engine. The sound of the locks clicking should indicate that your car has been successfully paired with the new fob.