10 Signs To Watch For To Buy A Remote Key Repair
How to Fix a Key Fob That isn't Working
If your key fob isn't functioning There are a few simple steps that can be taken to fix it. First, make sure that it's not the backup remote.
If your backup remote cannot lock and unlock the doors of your car, then it is most likely that the primary remote is not working. Most problems with car remote keys are caused by battery or circuitry problems.
Battery
It is not unusual for the battery in the key fob for cars to wear out. It is easy to replace a battery. However it is essential to select the right type. You can check the owner's manual or contact the manufacturer to inquire about the right type. It is also a good idea to inspect the battery compartment thoroughly, as dead batteries sometimes release caustic chemicals that could cause damage to the remote. If changing the battery doesn't solve the issue there may be additional issues requiring professional attention. If buttons are damaged or stuck, for example it might be necessary to remove the remote and rebuild each component. It is also possible to reprogramme the vehicle to recognize the new fob.
car remote key repair
Through frequent use, key fobs may get dirty and worn. It is not common to have buttons stop functioning, or require a long press to make them work. This can be extremely frustrating, especially if you are out of town and need to start your vehicle. Fortunately, even worn-out or damaged buttons can be fixed with a bit of time and a few materials you have in the home.
First, make sure that the batteries are properly inserted and that the indentation on the back of the button has been filled. Then, open the remote with care and examine the circuit board. Check for signs of corrosion or other signs that the buttons are worn or damaged, like missing the conductive paint. Use a Q-tip that has been dipped in alcohol to gently clean any membrane contact that is damaged or has conductive paint missing. Be careful not to rub too hard, because this could damage the conductive paint and block the button from firing when the button is pressed.
Check the battery connector's terminals carefully for any loose solder connections. Soldering them back to their original position will restore the button's functionality in the event that this is the case. The same method can be used to restore function to any loose connections inside the fob.
Finally, if any of the buttons made of rubber that are on the front of the key fob stop functioning or require a hard press to work it is likely the graphite disks that are on the back of the button are wearing out and require replacement. It is usually done by rubbing a pencil over the disks. This should bring the button back to life.
If none of these solutions work or you are unable to get the button to respond when you press it hard, it is possible that the circuitry has failed. This can sometimes be repaired by a quick clean and replacing the solder, but it is best to have an extra fob available in the event this method does not work for you.
Circuitry
If the keys fob buttons are functioning the circuit board in your remote might be dirty. A very thorough inspection will usually resolve this problem. Broken cases and water are the most common causes of dirty boards. A damaged case can allow water and other debris to get in and short circuit the electronic components. Water can also get through pins and vias, which are tiny connectors on the board.
If you're able to open your key fob, and don't mind making a mess, we can remove the buttons from their sockets and put in new ones. It's also worth checking the battery terminal connections. If they are loose, the buttons might not function properly or become stuck in their down position. Soldering the terminals and buttons back into place is typically all it takes to restore a non-working key fob to working condition.
Non-Remote Transponder Chips
Sealed non-remote transponder chips are more durable than the remote fobs that have them but they can be damaged by a hole that is drilled into them or run over by a lawnmowers or door handle for a car. Fuse failures are usually the cause of non-remote chip failures.
If you're not comfortable opening the key fob, remove the circuitboard and utilize a multimeter to check that the diode is functioning properly. If you're not confident doing this, go to your local hardware store or Oreilly's and they usually have a RFID frequency tester that can let you know whether the key fob is transmitting a signal.
Programming
Key fobs are not indestructible and are susceptible to damage through a variety of causes. They can lose their pairing with the receiver in your vehicle due to shocks or low-battery, which requires reprogramming. A professional auto locksmith or a main dealer will be able to reprogram your key fob to get it back up and running. If resetting or repairing your key fob fails, you may need to replace it.