How to Fix a Key Fob That isn't Working
If your key fob doesn't work then you can fix it by following just a few steps. The first step is to be sure that it's not your backup remote.
If the backup remote car key repair company key repairs (visit the following web site) is able to lock and unlock your car doors it is most likely an issue with the primary remote. The most frequent causes of key problems with your car remote are circuitry or battery issues.
Battery
It is not unusual for the battery inside the key fob for cars to wear out. It is quite simple to replace the battery, however it is essential to ensure you use the right type that you can refer to the owner's manual or talk to the dealer for the manufacturer to find out what kind of battery you need. It is also crucial to check the battery compartment as batteries that are not working properly can release toxic chemicals that could damage the remote. If replacing the battery does not solve the issue there may be additional issues requiring professional attention. If the buttons are broken or stuck, for example, it may be necessary disassemble the remote and rework each component. You can also try reprogramming the vehicle to recognize the new remote.
Buttons
From repeated use, key fobs may become worn and dirty. This is not atypical however, it can cause buttons to cease functioning or require a hard press for them to function. This can be very frustrating particularly if you're out of town and need to start your car key button repair. Fortunately, even worn out or broken buttons can usually be fixed with a little time and some of the materials you might already have in the house.
First, make sure that the batteries are properly placed and that the indentation on the back of the button has been filled. Then, carefully open up the remote and examine the circuit board. Examine for signs of rust or other signs that buttons are worn out or damaged, like missing conductive paint. Use a Q-tip dipped into alcohol to gently clean any membrane contact that has worn-out or has conductive paint missing. Do not rub too vigorously as this can damage the conductive paint, and block the button from firing when pressed.
Also, be sure to check the battery connector terminals for an unattached solder connection. Soldering them back into place will allow the button to function again If this is the case. The same procedure can be used to restore function to any other loose connections inside the fob.
If, for instance, any of the buttons made of rubber on the front of the key fob stop working or require a very difficult press to function, it is likely that the graphite disks at the back of the button are deteriorating and require replacement. It is usually done by rubbing a pen across the disks. This should bring the button back to life.
If none of this is useful or if the button does not respond to a firm press It could be the case that the circuit board has become damaged. It is possible to fix this by cleaning and re-soldering your fob however, you should have another spare in case it does not work.
Circuitry
Whether or not the key fob buttons function the circuit board that is inside your remote might be dirty. A thorough inspection will usually resolve this problem. Broken cases and water are the most common causes of dirty boards. A damaged case allows water and other debris to get in and short out the electronic components. Water can also get through pins and vias, which are small connectors on the board.
If you're skilled enough to open your key fob, and you don't mind making an mess, you can remove the buttons from their sockets and solder in new ones. It's also worth examining the battery terminal connections. They can become very filthy and if they're not tight enough, the buttons might not function or even stick in their down position. Soldering the terminals back into place is usually enough to return a malfunctioning fob to working.
Non-Remote Transponder Chips
The non-remote chips sealed in a sealed case are more durable than remote fobs, but they are susceptible to cracking if a hole is drilled in them or when a door handle for a car key repairs or lawnmowers is pushed over them. Most of the time, non-remote transponder chip malfunctions can be blamed on an exploded fuse.
If you're not confident opening the key fob, you can remove the circuitboard and utilize a multimeter to determine if the diode is operating correctly. If you're not confident doing this, head to your local hardware store or Oreilly's and they'll usually have a RFID frequency tester that can tell you whether the key fob sending a signal.
Programming
Key fobs aren't impervious to destruction and are susceptible to damage by a variety of factors. They may lose their connection to the receiver in your car due to shock or low battery, which requires the reprogramming. A professional auto locksmith or the main dealer can reprogram the keyfob to get it working again. If resetting or replacing the keyfob is not working it is possible to replace it.