Remote Key Fob Repairs
Check the battery first if your remote key fob isn't working. This is the most frequent reason for your car not responding when you ask it for commands.
If the problem persists it could be due to another issue. Many of these issues can be solved with some simple steps.
Check the Battery
Key fobs can perform a variety of functions, like remote locking and unlocking your car, turning on the interior lighting and allowing you to start the engine at the touch of the button. If you notice your fob isn't responding the way it did as well, or you have to walk closer to your vehicle to lock or unlock it, your remote battery may need to replaced.
Most key fobs use a standard watch battery, typically the CR2032 coin cell. They are available at most hardware stores, grocery stores and even some gas stations. Fobs differ in the inside, so it's essential to check your owner's manual to determine the exact type of battery required. It's also a good idea to keep an extra fob in your possession -- you never know when it may get lost or even break!
A remote key fob sends the radio frequency signal (RF) to the receiver in your vehicle. When you hit a button on the fob, it transmits a unique number that matches the preprogrammed codes that are in your vehicle's system. The car's receiver will then verify the code and opens or shuts the doors according to the signal. If you're having trouble with your key fob, it could just need a new battery, or the codes may need to be reset.
While you wait for a replacement battery to arrive, try some things to make your fob respond better. For instance, a lot of cars have an option that allows you to disable the key-chain alarm on your key fob by holding down the lock or panic button on the fob for ten seconds, according to Consumer Reports. This is a straightforward trick that can help prevent your key-fob from activating accidentally in public. It's also an excellent way to keep your vehicle and yourself safe from unwanted burglaries.
You can check the battery's voltage with the multimeter. Place the probes on both the negative and positive sides of the battery, that should be marked with the letters P and N and N, respectively. A reading of less than 3,0 volts could indicate that the battery needs to be replaced.
Check the Buttons
If your car key fob isn't responding when you press the buttons on it this could indicate that the key fob is in need of be replaced. The buttons on a fob perform various commands that send an encoded signal to the car's receiver, and it's not unusual for them to become worn out over time.
To troubleshoot an issue with a dead remote, the first thing you should do is to replace the battery. If the new battery doesn't solve the issue, call an emergency locksmith near Apache Junction to see if they can reset the remote to factory settings. This typically involves inserting the key into the ignition, then pulling it out several times over a short period of time and then pressing one of the lock or unlock buttons on your fob. It should sound a sound when you've completed the process.
Your key fob may also be worn out even though the battery is still functioning. The contacts inside the device are rubber-like however they are coated with an electrically conducting film that is susceptible to wear over time due to use and exposure to water. This can be fixed using a piece metallic tape and a punch.
A remote key fob has numerous buttons that allow you to open and shut the doors of your vehicle as well as lock the trunk and even start the car. Many vehicles also include buttons that fold in the wing mirrors. This could be a huge advantage for those who frequent shopping malls and crowded parking lots. Many people don't realize that the fob could also be used to turn on the air conditioning or heating before getting into their car in the cold winter morning, 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 due to the security and technology required to create a replacement can only be provided by a car dealer. If you have a service contract or extended warranty for your vehicle, this may cover the cost of replacing a fob.
Check the Connections
A remote key fob (also called car key remote or remote control keys, or smart keys) is a wireless device that lets you to lock and unlock your car without needing to physically insert a metal key. They utilize radio frequency technology (RF) to communicate with a receiver inside your vehicle that validates and processes incoming signals. They're a fantastic convenience and safety improvement but they are also prone to be inoperable for a variety of reasons, including after replacing the battery.
The circuit board on the key fob is prone to damage from water, blunt force, and scratches. The buttons that are made of rubber may wear out and cause problems since they are used to open the doors and start the engine. Thieves have taken advantage of this weakness in order to steal cars and take over homes, so the key fob needs to be functioning properly for security purposes.
If your key fob isn't working as it should, try to lock and unlock your car using your backup remote. If it works, the issue is likely to be with the primary remote. If this fails, you can disassemble the remote and check the internal buttons or contacts to determine if there is physical issues.
If you take off the remote and look for any distinctive marks or logos on the outside. Some auto brands have distinctive logos on the back or a model-specific number. This will help you identify the correct replacement.
Find the receiver module. It's usually located under the dashboard or near the ignition in older vehicles. Check for visible physical damage and make sure the contacts are clean. Try moving the fob or temporarily disconnecting the battery power to reset it and see if it helps.
If the receiver module doesn't function, it is likely that it is time to replace it. Contact the manufacturer to request parts and service, if needed. Otherwise, you can try programming the new module to match the original paired connection with the key fob. This is a safe and simple procedure, but you will need the right scanner to access the car's computer.
Reprogram
A remote key fob, also referred as a remote controller, is a small device that allows you to control your car's trunk security system, alarm system and locks from an extended distance. Fobs are available as replacements to your existing metal key, or you can upgrade to the smart or proximity fob that comes with additional features. Unlike traditional metal keys, fobs aren't cut or copied by a burglar in order to gain access to your vehicle. However, these devices could be damaged as time passes due to battery issues or other reasons. It is possible to repair remotes rather than replacing them.
Replacing the car key fob usually requires changing it's programming to match the security system in your vehicle. This is a complex procedure, and may result in additional costs if done 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 consult your owner's manual or search online for instructions specific to the car model prior to replacing your fob. Different manufacturers might have different procedures to follow when reprogramming a fob, and this information can help you avoid any unnecessary costs.
To reprogram web page open the driver's door and press the unlock key. In a matter of minutes, the door locks should be cyclic. This means that your car is now in the remote-programming mode. If this doesn't happen, begin the process again.
After removing the metal ignition key, you can use the flathead screwdriver to remove the fob and access the circuitry 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 can change the battery.
It's a good idea to test your new device by locking and unlocking doors, and starting the engine. The sound of the locks should signal that the new fob is paired successfully with your car.