Remote Key Fob Repairs
Check the battery first If your remote key fob is not working. This is the most frequent reason why your car isn't responding when you ask it for commands.

If the problem persists, it may be due to a different issue. Luckily, many of these issues can be solved by following a few easy steps.
Check the Battery
Key fobs come with a range of functions, like remotely locking and unlocking your vehicle as well as turning on the interior lights, and allowing you to start the engine with a push of a button. If you notice that your fob isn't working the way it used to, or it requires you to move closer to your vehicle for it to lock or unlock or unlock, the battery inside your remote might need to be replaced.
Most key fobs are powered by a standard watch cell that is typically the CR2032. They are available at a variety of grocery stores, hardware stores and even some gas stations. Fobs differ inside, but it's important to check your owner's manual for the exact type of battery required. You should also keep a spare key fob on hand since you never know when it will be lost or broken.
A remote key fob sends an RF signal (RF) to the receiver in your vehicle. When you press the button on the key fob it transmits a specific signal that matches the preprogrammed codes inside the computer system of your vehicle. The car's receiver will then verify the signal and then opens or closes the doors accordingly. If your key fob is not working, it may need new batteries or the codes have to be reset.
While you are waiting for a new battery you can try a few things to make your key fob perform better. Consumer Reports states that a lot of automobiles come with a feature that allows you to disable the key-chain alarm that is on your key fob by pressing the lock or panic button for ten seconds. This is a simple method to prevent your key fob from being accidentally activated in public areas, and it's a great way to protect yourself and your vehicle from unwanted burglaries.
You can check the battery's voltage by using the multimeter. Place the probes on both the positive and negative sides of the battery that should be marked with the letters P or N, respectively. A reading of less than 3,0 volts could indicate that the battery is in need of replacement.
Check the Buttons
If you're unable to get your car key fob to respond when you press its buttons, it could mean that the fob needs replacing. The buttons on a fob perform a series of commands that send a coded signal to the car's receiver, and it's not common for them to wear out with time.
To troubleshoot the issue with a dead key fob the first step is to replace the battery. If the new battery does not solve the issue it is recommended that you contact a locksmith mobile near Apache Junction and see if they can reset your remote to default settings. This involves inserting your key into the ignition, then pulling it out and re-inserting it several times within the timeframe of a few minutes before pressing the lock or unlock button on your fob. You will hear an emitted sound after you have completed the process.
It is also possible that your key fob is worn out, even though it has battery power to function. The contacts in the device are rubber-like however they are coated with an electricity conducting film that wears away with time due to usage and exposure to water. You can sometimes fix this with an item of metallic tape and an ahole punch.
A remote key fob comes with numerous buttons that let you to shut and open the door of your vehicle, lock the trunk and even start the vehicle. Many cars also have an option to fold down the wing mirrors, which can be a huge benefit for those who regularly visit shopping malls or busy parking areas. Many people don't realize that the fob can also be used to switch on the heating or air conditioning before getting into their car on a cold winter day, or to cool it down on hot summer days.
In most cases, only the dealer can replace the key fob. This is because the process of preparing for a replacement requires the kind of security and technology that only a dealership can offer. If you do have an extended warranty or vehicle service contract for your car, which could be able to cover the cost of a replacement for.
Check the Connections
A remote key fob, also referred to as a remote control key, car key remote or smart key, is a wireless device which allows you to lock or unlock your vehicle without the need for a metal key. They typically use radio frequency (RF) technology to communicate with the car's receiver that processes and verifies the signal received. They're a fantastic convenience and safety improvement but they are also prone to stop working for all sorts of reasons, and sometimes after replacing the battery.
The circuit board on the key fob is prone to damage from water, blunt force and scratches. The buttons made of rubber can wear out and cause problems because these are used to open the doors and start the engine. This weakness has been exploited by thieves to steal cars and break in to homes. The key fob has to function in a secure manner to protect your home.
If your key fob does not function as expected, you can start by attempting to lock and unlock the car with your backup remote. If it works, the problem is likely with your primary remote. If this isn't working, remove the remote and look at the buttons and contacts inside for signs of a physical issue.
When you remove the remote, look for any identifying logos or marks on the exterior. The most common car brands could have distinctive logos or a unique number on the back of the remote that corresponds with a particular model. This can help you locate the right replacement.
Next find the receiver module, which is typically located beneath the dash or near the ignition on older vehicles. Check for visible physical damage, and make sure the contacts are clean. Try relocating the key fob or disconnecting the power temporarily to reset it.
If the receiver module fails to function, it is probably time to replace it. Contact the manufacturer to request parts and services, if required. You can also try reprogramming an entirely new module to ensure it matches the original connection 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 known as a remote control, is a small, electronic device that lets you control your trunk security system, alarm system, and locks from a distance. Fobs are available as replacements for your existing metal key or upgrade to an electronic or proximity fob with additional features. Unlike traditional metal keys, the fob isn't cut or copied by a thief in order to gain access into your vehicle. However, these devices could lose their functionality over time due to battery issues or other causes. Fortunately, it's possible to repair these remotes rather than replacing them all.
Replacing a car key fob is usually a matter of reprogramming the new unit to match your car's security system. This is a complex job, and could result in additional costs if you do it at an auto locksmith or a dealership. Fobs are available as OEM (Original Equipment Manufacturing) or aftermarket options. OEM products are typically more expensive than aftermarket options.
It is a good idea to read the owner's manual or look online for instructions specific to your car model before replacing your key fob. Different manufacturers might have different procedures to follow when reprogramming a fob and this will aid you in avoiding unnecessary costs.
The first step to reprogramming your fob is to open the driver's door and then press the unlock button. The door should lock within a couple of seconds, indicating that your car has entered the mode of remote programming. If this site does not happen, you will need to start the process again.
After you've removed the metallic ignition key from your fob then you can use a flathead screwdriver or a similar tool to open the fob and access the circuit board inside. It's important to be careful and be patient in order to avoid damaging the circuitry or the housing. Once you have accessed the board, you can replace the battery.
It's a great idea to test your new device by locking and unlocking doors and beginning the engine. The sound of clicking locks should signal that the new fob is paired successfully with your car.