Car Remote Key Repair
Modern remotes for cars are useful and convenient, but they can be frustrating when they stop functioning. Fortunately, there are quick fixes that can usually bring them back up and running.
Replace the battery first. Most fobs are equipped with lithium coin cells, which are cheap and easily accessible.
Broken Electronics
Your remote car key has an electronic circuit board inside that transmits and interprets signals to your vehicle. If this board is damaged, the key fob will not perform as it should. Contrary to battery failure, which is generally very simple for most drivers to repair at home damage to the receiver or transmitter of your remote key will require a professional auto locksmith or dealer for your car.
The majority of remotes that use key fobs have lithium ion coin batteries which have a decent shelf life but will not last for a long time. If you've been using batteries for a while, changing them will probably solve your problem. You may be surprised if you've been using your remote for a long time and the buttons aren't responding in any way. This is true even in the case of batteries that are new. The buttons on your keyfob will be subjected to a lot jostling and may break or become unresponsive over time. If this happens taking them off, cleaning them, and placing them back in place will usually resolve the issue.
If the buttons on your remote aren't responding, you may require reprogramming it to work with the car's system. This is typically done by turning the ignition key several times with the doors shut. The procedure will differ based on the make and model however, you will be able to locate instructions online or contact an expert for assistance.
If the key fob has a plastic exterior, it's possible to remove the cover and pull it apart. Be cautious not to damage any buttons or internal components. This can be done with needle-nosed pliers which have longer tips. They are able to grasp small parts. Lubricating pliers using putty, melted tallow or super glue can help them grasp delicate parts. This is something that an automotive locksmith could use, since improper methods could damage the electronics. If you try to forcefully break the fob apart can cause damage to the plastic, and it's possible to accidentally break any buttons attached to it.
Faulty Transponder Chip
If you've managed to start your car using the remote key, but it's not working the next time, it could indicate a problem with the transponder chip. This is because the key relies on the small electronic component in order to communicate with immobilizer system. It sends the signal to the system to inform it that your key is valid and you'll be able to start the vehicle. If the chip doesn't correctly transmit this signal it will cause the immobilizer to disable your vehicle.
This problem is more common in older cars, however it is also a problem in more modern vehicles. The transponder chip wears out over time. It is possible to get a locksmith for your car replace this portion of your key, however this can be expensive.
In some instances, your chip may be dead. In this case the dealer will need to replace it. This is the most expensive option, however, it is often required to get your car back on the road.
Another possibility is that the chip in your key has been damaged that means it no is able to communicate with the immobilizer system. This could occur when the battery is replaced, or it can occur when there is physical damage to the key. A Mesa auto locksmith can resolve this problem, but you may need to visit the dealer to get your key programmed.
If you're having issues with your remote key you must first try a backup. If this does not solve the issue, you should disassemble your key fob to conduct a visual inspection. Make sure none of the buttons appear to be broken or loose. These components see lots of use and are easily jostled loose over time. If they are loose it's best to get them reattached by an experienced professional. In most cases, this will restore your key fob's functionality. This is especially applicable to keys that have been accidentally put into the wrong ignition lock cylinder.
Damaged Battery
If the key fob is still not working even after you have tried a new one it could be due to other problems. Fobs can be damaged by water, dropping them or stepping over them, and internal connections, like the ones that connect the battery terminals within the remote, could be broken or disconnected. It is possible to reprogramme your key fob if you do not have a spare of the same type and model.
Modern key fobs should be programmed to work with the vehicle to ensure that only you can unlock the car's doors. The Key Lab 's a crucial step to protect your car and prevent others from using your key fob to gain access your car or cause problems with its electrical system. Certain engine error codes or even normal wear-and-tear can corrupt the programming and stop your key fob from working. It is crucial to get your key fob reprogrammed professionally by a professional who is equipped with the proper equipment.
It's also possible that the problem is with the buttons themselves and this could be a more straightforward fix than replacing the entire key fob. Key fobs typically have rubberized buttons that are jostled around all the time, and can break or become loose. If you're able to determine that the buttons aren't damaged you could try adjusting them manually.
It is best to open the key fob and take a look at it, but be aware. Certain key fobs don't have a simple release mechanism. You may require an instrument or screwdriver to pry them apart. Some fobs are sealed and are not openable without special tools. You'll need to go to a dealer to get them professionally opened. If you have an extra key fob for the same model and manufacturer you want to use it, try using it to access your car's programming mode. Depending on the car you drive, this may involve closing and locking the doors, switching lights and electronics on and off, and pressing a specific set of buttons in a particular order.
Failing Buttons
Mechanical damage could be to blame if the buttons on your key fob aren't working or require you to press them forcefully. The functionality of the key fob could be affected by dropping it on concrete or accidentally hitting the button by using a sharp object. It is necessary to remove the key fob, then examine it to see if there are any buttons that appear to be damaged. If that is the case, a locksmith could fix it.
Failure of buttons could be caused by dirt or crud that is trapped between the buttons. It is essential to clean your keys regularly using the help of a cotton swab that has been soaked in alcohol. You may also need to clean the surface of the keys themselves. You should also try to determine if the problem is with the locks of your car or with the key fob itself. If you don't own a spare key, try the keys in a different vehicle to see if the problem is solved.
Whether or not the key fob should be reprogrammed depends on the condition of the battery. If your key fob doesn't function after replacing the batteries the terminal contacts of the battery are likely damaged. You can also deprogram your electric key fob by pressing the buttons too frequently when you're out of range, or by disconnecting your car's battery.
If the key fob still not working after replacing the battery, you should be able to reprogramme it with the car. It will depend on your specific car model, but generally you'll have to lock and unlock the doors manually. Insert the key into the ignition, change it to accessory, then hit the wireless remote. If this works, the exterior and/or interior lights will flash. You can then retest your key fob to verify that it is successfully programmed with the vehicle. In more rare cases keys can not function if there is an issue with the door lock itself.